Opening Pages
The Iro —_— Vol. XXX: No. 26. Economical Steam Engines. In one of our former issues we gave some | attention to the various elements affecting | the economical working of steam engines, such as light loads, rotative speeds and the influence of condensers. There are, however, other circumstances which must be taken into consideration, as, for instance, the cost of attendance, the expenses of repairs and of lubrication. These latter items vary consid- erably with different styles of engines, and, as a rule, the one possessing the fewest mov- ing parts may generally be considered the most economical from this point of view. As far as steam consumption, however, is con- cerned, an appreciable difference will be found in the different kinds, and in very many cases the gain in economy of steam far outweighs the expenses just alluded to. All engines may be represented by two xtremes and endless intermediate grades, rom the plain slide-valve engine on the one and, to the four-valve engine of the auto- natie cut-off type on the other. The simple ide-valve engine, of course, has the merit cheapness of first cost, and its action is so well understood that, comparatively speak- ing, no great d…
The Iro —_— Vol. XXX: No. 26. Economical Steam Engines. In one of our former issues we gave some | attention to the various elements affecting | the economical working of steam engines, such as light loads, rotative speeds and the influence of condensers. There are, however, other circumstances which must be taken into consideration, as, for instance, the cost of attendance, the expenses of repairs and of lubrication. These latter items vary consid- erably with different styles of engines, and, as a rule, the one possessing the fewest mov- ing parts may generally be considered the most economical from this point of view. As far as steam consumption, however, is con- cerned, an appreciable difference will be found in the different kinds, and in very many cases the gain in economy of steam far outweighs the expenses just alluded to. All engines may be represented by two xtremes and endless intermediate grades, rom the plain slide-valve engine on the one and, to the four-valve engine of the auto- natie cut-off type on the other. The simple ide-valve engine, of course, has the merit cheapness of first cost, and its action is so well understood that, comparatively speak- ing, no great degree of skill is required in constructing the different parts and putting them together. In actual practice, however, it is generally found that the engine con- umes a very large amount of steam for the work done, this being occasioned by the ar- rangement of the valve, ‘which permits of a vasteful use of the steam. As a rule, these ngines generally run at low speeds, and the ylinder condensation is thus favored to a reat extent, but the loss of power by fric- on, owing to poor construction, becomes ©) appreciable item. Considering all these ints, it will be readily acknowledged that e four-valve automatic cut-off high-speed ngines now so extensively used are much nore ecocomical, being, however, more com- ‘icated and of larger dimensions in order to sive the same power. At the same time ‘y require better workmanship, and the ost of attendance is also higher, because ver men thoroughly understand their rking. It should be here noted that the ility to break down increases with the tber of moving parts in an engine, and it ior this reason that very often, when an engine of this type is not properly cared for, » expenses from this cause become con- lerable. The question of economy of steam, how- ver, is one which suggests itself to every ntending purchaser, and as far as this ques- tion is concerned, he will generally find the more complicated engine to give better re- sults than a plain slide-valve engine. The rst cost of the engine must be said to bear ut a small proportion to the cost of the veam-power, since the cost of fuel, attend- nee and repairs often exceeds the cost of the agine in a single year, and the mistake so ‘ten made by mill owners and manufactur- rs in using a cheap, and consequently rly constructed and wasteful, engine is etected after a few months’ running. It is, consequently, more advisable to expend a mewhat larger sum for an economical en- ine, which, in a comparatively short time, erhaps, will pay for itself by reducing the ‘al bill and other expenses, and though uese, when first considered, seem inappre- iable, they will be found tvorthy of atten- ion after a comparatively short time. The actual cost of attendance of an engine not always properly considered. One en- ine may run for quite a length of time with- it any attention except that of keeping it operly lubricated and in starting and stop- ng, while another may be so deficient in i working as to require the engineer to kpend half of every night in taking upslack, packing the joints, setting up the stuffing- xes, &c., in order to get it in proper con- tion for the next day. The proprietor, of urse, claims that his engine costs nothing 1 repairs, but sooner or later it will give way ist at one point and then at another, until nally it will have to be shut down and com- letely overhauled before it will be in proper ndition to resume its work. In estimating he cost of an engine the cost of the founda- 'n occupies a position of some prominence, .d in like manner all engine attachments ould be taken into account. Though the ur-valve automatic cut-off engines give, as ule, results far superior to those obtained ith the ordinary slide-valve engines, it can- it be said that they are always paying in- ‘stments, and if it were not for the fact at engines wasteful of steam call for extra iler capacity, the simple engine, when fuel sts nothing, would be the best. Since, wever, money saved in boilers is better in money saved in engines, the boilers to ply the cheap engine may more than pay difference between the cost of the cheap 1 the economical motors. Sr \ German scientist, Herr Liebermann, npleys electricity in determining the melt- \g points of metals and alloys fusible at low ‘mperatures. He interposes in an electrical reuit provided with a bell, a rod of the etal or alloy to be experimented with, and inges this rod into a bath of some suitable bstance, the temperature ef which is ven by athermometer. The circuit being sed the bell will ring, but as soon as the th attains the temperature necessary to © the metal the circuit is broken and the ise ceases, and the reading of the ther- ometer taken at that instant will give the ‘lting point of the metal or alloy in ques- ty I) Age A Review of the Hardware, Iron and Metal Trades. Published every Thursday Morning by Davrp Wittrams, No. 83 Reade Street, New York. Entered at the Post Office, New York, as Second-Class Matter. New York, Thursday, December 28, 1882. $2.50 a Year, Including Postage. Single Copies, Zen Cents. : > ’ : | . . ° . | ° The J. Morton Poole Roll Grinding | engineers of eminence who had investigated | truth of the tool-guiding ways. In the Poole! whieh rests in the bearings B, is passed the lathe with the idea of its employment in| lathe, however, while guideways are neces- | between these emery-wheels. The carriage Process.—The Roll Grinding Lathe. In a recent issue we presented an illus- ‘ trated description of the J. Morton Poole roll- | turning, lathe but would here state that it is {in the roll-grinding lathe that the chief interest of the process centers, since by its means surfaces have been produced that for smoothness and accuracy are | said to surpass anything that has ever been produced, either by machine-work or hand- work, in any country. Fig. I Fig. 2.—Part of Sections of Roll and J=“= } eee 5 i oe a SS eee ¢ <_—- Emery Wheel. b ae eons i eT TTY aaa TT ti England, actually abandoned their intention because they failed to perceive its advan- tages. It may be noted, however, that others, both in England and in Germany, perceived its excellence, and the process is carried on in both countries—in the latter, sarily employed to guide the emery-wheels in as straight a line as is possible, by means of such guides the roll itself is employed as a corrective agent to eliminate whatever errors may exist in the guide. The manner in which this is accomplished may be clearly under- C is fed along the bed as an ordinary lathe carriage, and the emery-wheels are revolved from an overhead countershaft. Now, it will be found that from this form of con struction the surface of the roll, when ground true, serves as a guide to determine it may be incidentally remarked, through| stood from the following description and |the line of motion of the emery-wheels, and official action of the German Government. Some of our own engineers, moreover, were not slow to grasp the principle underlying This is more re-! the design and action of the machine, and| by examining the details. from the illustrations accompanying it : Fig. 5 represents a perspective view of the machine, which will be understood It consists of .—Action of Swing Frame. Roll ‘‘Out of True.” Fig. 3.—Showing Method of Securing the Emery Wheels. °« TT I NE Wu Wi il WN) Fig. 4.—End View of Tail Blocks with Bearings for Roll. a => Fig. 5.—Perspective View of Roll Grinding Lathe, THE J. markable in work of such size as large calen- der-rolls than it would be in work of smaller dimensions, because, as is well known, the difficulty of producing a true, smooth and pol- ished surface increases with the dimension of the work and also with the hardness of the metal. The principle of action is a radical departure from that of any other metal-working tools, and although simple in | itself, it is a fact that many well-known mechanics have, after a full inspection of the machine, failed at the first and even at the second visit to the Messrs. Poole’s works, at Wilmington, Del., to thoroughly grasp the action of the lathe. This fact has been recently stated by J. Richards, in a letter to Mechanics, and has been commented upon editorially by London Engineering. English | MORTON POOLE among them may be mentioned William Sel- lers & Co., of Philadelphia, who, early in the history of the process, investigated it and its work, and Mr. Babcock, of the firm of Bab-| cock & Wilcox. In all other machine tools, surfaces are made | true either by guiding the tool to the work or | the work to the tool, and, in either case, guide- ways and slides are employed to determine the line of motion of the tool or the work, as the case may be. These guideways and slides | are usually carried by a framing really inde- | pendent of the work, so that the cutting depends entirely upon the truth or straight- | ness of the guideways, and is not determined by the truth, straightness or parallelism ROLL GRINDING PROCESS. a driving head, H, (see Fig. 1), answer- ing to the headstock of an ordinary lathe. BB are bearings in which the rolls are revolved to be ground. C is a carriage answering to the carriage of an ordinary lathe, but having raised Y-slides seated in sunken V-guidew ays, corresponding to those on an ordinary iron planing machine. F isa | swing-frame suspended by four links, G, H, I, J, which are upon shafts having knife- edges resting in V-grooves on the top of the standards S, which are fixed to the carriage that the emery-wheels may be compared toa pair of grinding calipers that will operate on such part of the roll length as may be of larger diameter than the distance apart of the perimeters of the emery-wheels, and escape such parts in the roll length as may be of less diameter than the width apart of those perimeters ; hence paralellism in the roll is inevitable, because it is governed solely by the width apart of the wheel peri- meters, which remain the same, while the wheels traverse the roll, except in so far as it may be affected by wear of emery-wheel diameters in one traverse along the roll. Supposing now that we have a roll, R Fig. 7, placed in position and slowly re volved, and that the carriage C is fed along by feed-screw, E, then the line of motion of the wheels will be parallel to the axis of the roll, provided, of course, that the bearings (Figs. 1 and 7) are set parallel to the Y-guideways in the bed, and that these guideways are straight and parallel. But the line of travel of the emery-wheels is not guided by the Y’s except in so far as concerns their hight from those V’s, because the swing-frame is capable of being swung either to the right or to the left, as the case may be. Its natural tendency is, from its weight, to swing into its lowest position, and this it will obviously do unless some pressure is put on it in a direction tending to swing it. Suppose, then, that instead of the roll run ning true, it runs eccentrically, or out of true, as it is termed, as shown in Fig. 2, when the high side meets the left-hand wheel it will push against it, causing the carriage C to swing to the left and to slightly raise. The pressure thus induced between the emery-wheel and the roll causes the roll surface to be ground, and the grinding will continue until the roll has permitted the swing-frame to swing back to its lowest and normal position. When the high side of the roll meets the right-hand emery-wheel it will bear against it, causing the swing-frame to move to the right, and the pressure between the wheel and the roll will again cause the high side of the latter to be reduced by grinding. This action will continue so long as the roll runs out of true, but when it runs true both emery-wheels will operate, grinding it toa diameter equal to the distance between the «emery-wheel perimeters, which are, of course, adjusted by the slide-rests A A. If the roll is out of true in the same diameter and to the same amount throughout its length, the emery-wheel will act on an equal area (for equal lengths of roll) throughout the roll length; but the roll may be out in one direction at one part and in another at some other part of the length ; still the emery wheel will only act on the high side, no matter where that high side may be or how often it may change in location, as the carriage and wheels traverse along the roll for each cut, independently of whether the \-ways of the bed are absolutely parallel to it or not. The action of the lathe is perfect ; it may also be noted that, if the Y-guideways in the bed were higher or lower, the hight of the emery-wheels would vary with relation to the hight of the roll, and the emery-wheels would in such a case grind a roll of larger diameter. This, however, is a theoretical, rather than a practical, point, as may be perceived froin Fig. 2, in which R is a part of a section of « roll, and W a part of a secticn of a roll. Nov assuming that the V-ways were as much as even a sixteenth out of true, so far as hight is concerned, all the influence of the vari: tion in hight is shown by the second lino of emery-wheel perimeter, shown in the figure, the two ares being drawn from centers I-16th of an inch apart. It is plain, then, that with the ordinary errors found in such V-guideways, which will not be found to exceed 1-30th of an’ inch, no practical effect will be produced upon the roll. Again, if one V is not in line with the other, no practical effect is produced, because if the carriage C were inclined at an angle, though the plane of rotation of the emery-wheel would be varied, its face would yet be paral- lel to the roll axis. Ifthe Y’s were to vary in their widths apart (the angles of the Y’s being 45° apart), all the effect it would have would be to raise or lower the carriage C to one-half the amount the Y’s were inerror. It will be thus perceived that absolute correct ness of the roll is obtained independent of absolute truth in the V-guides. We shall now refer to some of the other salient points in the construction of the lathe. Fig. 6 represents the construction of the }emery-wheel arbor and bearings, and the | belt connection for driving the emery-wheels. Now, the roll does not run true until its cir | cumference is equidistant at every point of its surface from the axis on which the roll |revolves, and obviously when it does run true its circumference is parallel to the axis ’ of revolution of the roll, because this axis is the line which determines whether the roll runs true or not, and therefore the swing- frame is actually guided by the axis of revo C. Now, since F is an easy fit in C, it may be swung back and forth crosswise of the | latter, the links G, H, I, J swinging as| pendulums. At the top of F are two slide- of the work itself. As a result, the sur-| rests, A A, ene on each end, carrying emery face produced depends for its truth upon the | er orundum wheels, W and the roll R, lution of the roll, and will therefore move parallel to it. The slide-rest A is bored to receive sockets, D D, and is provided with caps, so that the sockets may be firmly gripped and held axially true one with the other, The socket-bores are taper, to res le ee THK IRON AGH. Deoembar 98, 1889 ThePlume& Atwood| — = | om a A N Ss o N 1 A BRASS & COPPER CO., 7 rT Mfg. Company, No, 19 CHM Street, | at ‘ , I MANOPACTURERS OF PRILIP ©. MOEN, CHARLES F. WASHBURN, ng myn aT SHEET and ROLL BRASS and WIRE, Wachis ——e Waterbury Brass Co. German Silver and Gilding Metal, is Washbur - & Moen Mfg. Co. stablishec Capital, 81,500,000 OAPITAL, - «- $400,000. Sheet, Roll and Platers’ Brass, CQERMAN SILVER, Copper, Brass and German Silver Wire, BRASS AND COPPER TUBING, COPPER RIVETS & BURS, BRUSS KETTLES, Door Rail Brass Tags, PERCUSSION CAPS, POWDER FLASES, Metailic Eye'eis, Shot Pouches, Tane Measures, he. Ard emall Brass Wares of every Description. Cartridge Metal in Sheets or Shelle a Specialty. Bole Agente for the Capewell Mfg. Co.’s Line of Sport- BRASS AND COPPER Sheets, Bolts, Rods, Wire, &c. Seamless Brass & Copper Tubing. Ansonia Corrugated Stove Platforms, PURE COPPER WIRE Bilectrical Purposes, Rare and Oovered Phosphor Bronze Rods for Pumps, &c. ANSONIA * REFINED ___INCOT _COPPER. PHELPS, DODGE & CO Copper Rivets and Burs, Copper Electrical Wire, Pins, Brass Butt Hinges, Jack Chain, Kerosene Burners, Lamp Trimmings, &c. 18 Marray Street, New York. 18 Federal Street, Boston. 109 Lake Street, Chicago. Reiling Mill, Factories, THOMASTON, Ot.| WATERBURY, Ct. Bridgeport Brass Co,, WORCESTER, MASS. WIRE DRAWERS. Patent Galvaniring, Rolling and Tempering, MANUFACTURERS OF IRON, AND IRON AND STEEL WIRE, Of Every Description. A SPECIALTY MADE OF GALVANIZED TELEGRAPH WIRE, GALVANIZED TELEPHONE WIRE, PATENT STEEL WIRE BALE TIES, IMPORTERS OF } ing Goods. MARUPACTURERS OF DEPOTS: Mille At PATENT STEEL BARB FENCING, T ! N P L A T E, 296 Broadway, New York, WATERBURY, Sheet and Roll Brass, AND PUMP CHAIN. Brass & Copper Wire & Tubing, sistas tal inal didn lita 125 Eddy St, Providence, R. |. Conn, ROOFING PLATE : | Chicago, ro7 and ro9 Lake Street, German Silver Metal and Wire, Copper and Iron Rivets. OILERS and CUSPADORES, | LAMPS and TRIMMINGS, LANTERNS and TRIMMINGS, | KEROSENE BURNERS, Olocks & Fly Fan Movements, } PLUMBERS’ MATERIALS. Particular attention paid to cutting ont Blanks and manufacturing Metal Goods, MANUFACTORY, WaRreroven, Betegegers, Com Comm. ‘29 Bavreg at., NW. ¥. Sheet Iron, Copper, Pig Tin, Wire, . edie Detroit Copper & Brass MANUFACTURERS OF COPPER AND BRASS. Rolling Mills, BRAZIFRS’ AND SHEATHING COPPER, SCOVILL MFC co ROLLED. SHEET & PLATERS’ BRASS en Capper Wire for Eleetrical and other purposes, Bra # and German Silver Wire, HINCES WIRE, GERMAN ‘SILVER. — “NATIONAL WIRE AND LANTERN WORKS.” Warehouse, 45 Fulton Street, New York, | And California Wire Works Co., San Francisco, Cal. Manufactory, Nos, 1197, 1199, 120%, 1203, 1205, 1207, 1909 and rerr De Kalb Avenue, Brooklyn, N. 7 HOWARD & MORSE, MANUFACTURERS O BRASS, COPPER & IRON WIRE CLOTH. pe [) HARRISON WIRE CO, ST. LOUIS, MO., Copper Riwets and Burre, COPPER BOTTOMS FOR TEA KETTLES AND BOILERS, Cor. Larned & Fourth Sts., Detroit, Mich. PHOTOGRA PHIC GOODS. BUTTONS, CLOTH AND METAL. MANUFACTURERS OF ALL KINDS OF STEEL AND IRON DEPOTS, FACTORIES beta 419 & 421 Broome St., N. Y, Waterbury, Conn, RO Mi E | RO N wo R KS, ie XY) 177 Devonshire St., Boston. New Haven, Gone, Manufacturers of ARK | A silt ; Dodie MLA 183 Lake St., Chicage. New Vor City. Brass, Gilding Metal, Cop- per and German Silver DICKERSON, VAN DUSEN & CO., Wire ) Cloth, h, partly Pillar Garden Arch, Galvanized Arbor or “ae Fenes, Guards Summer House, or Railing, No. 9 RIDDLES, COAT. AND SAND SCREENS. Atak Importers of (In Sheets, Rods, Tubing or Wire), ' 48 7 ron an teel Locomotive Spark Wire Cloth Tin Plate, Pig Tin, Sheet Iron, Copper,| COMMPER & BRASS RIVETS Holmes Booth & Haydens, Wire Cloth for Sugar, Milk and Rosin Strainers, Dutch Whe Cloth, Square Wire Smut Cloth, Wire, Zine, Etc., AND BURS. ’ Wire Bolting Cloth, Heavy Rolled Cloth for Malt Kilu Floors, ant Ob Gilet Sha cum, Beleem Seem, Shaw Gente, » WATERBURY, CONN. Wire Work, Wire Fence, Railing and Guards. Also, Hand and Railroad Lanterns, DICKERSON & CO., Liverpool. NEW YORK, NEW YORK, BOSTON, . isiiaiainiainiaiati _ 49 Chambers St. 18 Federal St. ape, AM §. HEWITT rata, JAMES HALL. Treasurer Pa a Manufacturers of a)! kinds of Brass, Copper & German Silver, ROLLED AND IN SHEETS. BRASS & COPPER WIRE, Tubing, Copper Rivets & Burs. BRASS & IRON JACK CHAIN, DOOR RAIL. A. C. NORTHROP, Waterbury, Conn., NOVELTIES IN BRASS AND OPHER METAL GOODS FOR HARDWARE TRADE. Wrought Iron and Brass Machine ary hog: Round and Square Head Cap and et screws; Brass anc iron Safety aan dean thei Gilt, Nickel Plated and Bronze Trimmings of all kinds. from Sheet iron, Stee! or Brass. Katimates on patenved articies, or any description of Sheet Metal work, respectfully solicited and TRENTON IRON COMPANY, } :x (INCORPORATED 1847), TRENTON, N. J., Manufacturers of TRONand STEELWIRE RY OF ALL GRADES, BRIGHT, ANNEALED, COPPERED, TINNED AND GALVANIZED Iron and Steel Wire Rods; WORKS ROESLING’ S New York Office German Silver Spoons, EXTRA QUALITIES OF BAR IRON AND RODS. Tze = ie - SILVER PLATED FORKS & SPOONS,| g.<+ Qualities of Gun-Screw and Charcoal tron Wire; Warehouse, Kerosene Burners, &c. Crucible, Siemens-Martin and Bessemer Steel Wire. Wire Straightened and Cut to —— New York Office, COOPER, HEWITT & CO., Slip. Philadelphia Office, JOHN HEWITT. ioe au North 0 IRON AND STEEL WIRE ROPE For Hoisting, Running & Standing Ropes, Ferries, &c. CONSTANTLY KEPT ON HAND. Address: HAZARD MFG. CO., Wilkesbarre, Luzerne Co., Pa. FELTEN & GUILLEAUME, Carlswerk, near Cologne, Germany. PATENT CRUCIBLE STEEL WIRE, For Mining and Plow Ropes, Hawsers and Bridge L 2 + SIEMENS-MARTIN AND -BESSEMER STEEL WIRE, Flusseisen, Swedish and German Charcoal Wire, GALVANIZED TELEGRAPH WIRE F; JOHN DAVOL & SONS, Agents for Brooklyn Brass & Copper Co., Dealers in 117 Liberty Street. THE JOHN A ROEBLING’S SONS C0, MANUFACTURERS OF Antimony, Solder & Old Metals. WIRE ROPE eienirnniimen Iron and Steel | 100 John Street, New York. iren, Stee! and Copper, | Telegranh Wire, WIRE PASSAIC ZINC CO. Heisting Purposes , - Market Wire, Manufacturers of Minds, for Ferries, Market Wire, Fence Wire, Pu re 5 pe ite r een an. cords: Vineyard Wire, | riage w tre, seine Ween , Suspension Bridge Cables, | | Rivet Wire. &c., &e, , Cartridge Brass, Gas Fixtures, Bronzes AND ALL FINE WORK. Also for GALVANIZED WIRE CLOTHES LINES. Galvanizers & Brass Founders. MANNING & SQUIER, Gen'l Agents, Ingot Copper, Spelter, Lead, Tin, tl Ber; MINE: high Va The | —————— BRODERICK & BASCOM ROPE CO. MANUFACTURERS OF : ae 'S Liberty Street, N. ¥. of Charcoal and Swedish Iron and Steel, also with high conductivity, and in long lengths, WIRE ROPE Geo. W. Prentiss & CO.,| nao, mesusmn neces etry geste be Sema oe Pet ” az ire, round and oval. BERGE BRODER ICK& aS EY a 2a ‘Oe 3 eet ov VAT IRE ROPE, opr OF EVERY DESCRIPTION, sane IRON WIRE ROPE. STEEL WIRE ROPE, TELEGRAPH CABLES. |°" Contractors to the German and Foreign overnments. The oldest house in the braneh on the Con- tinent. Telegraph Address, CAKLSW ERK, COLUGNE, ALVIN General Agents for U. 8. and Canada, PERKINS & CHOATE, 23 Nassau St, N. Y. 728 N. Main St., St. Louis, Mo. WORCESTER WIRE co., A. LESCHEN & SON, Bright, Coppered, Annealed and Tin Plated. Also GUN SCREW WIRE = x iRON AND ST FEL Of all sizes straightened and cut to order. 3s o Mauufacturers of © ~ > & . . . 7 7 3 . eee «6S ~~ 3 | ee 72 [SHE ( oe a hh . oe = » 3. § 2 & PE k BROWNING, SISUM & CO., 85 Chambers St. = = ie SOF ai *urposesr Mavufscture =; > 7 " Belt Hooks, Coetiers, Spring Keys, DV Rings, - OF BVERY DESCHIPTION. 7 A FI 919 to 923 N. Miain St. SE. LOUM, MO. Correspondeace imvited, ® Staples, and everything pertaiming to wire bending. *yeotory. BROOKLYN. Vi ORCLSTER, MASS December 28, 1882, THE IRON AGH. 8 | « ; A Ez > «eh Mm fq OR, INT ceive the taper ends of the arbor x, and are Butcher. who had at that time his home in 9 provided with oil-pockets at anch and Thera Merrie vweaard from the son of Dr Long 0. LINDEMANN Manufacturers of 8 a driving pul] ¢ fa ] t and probahl inity of the i y pulley on eac } Aa are c ) no eecens nm f ’ vio) ‘ | STEEL WIRE for all purposes and STEEL SPRINGCS of every description. wheel, and equal belt-sneed Stained s0| remarkable sotese, Gad, alive to the vales & C0., follows ['wo belt-di ned . VN. ara f « i A ‘ontribution to science, Dr employed, and each , « B er ade preparations for a thorough Manufacturers of all 4 in Fig. 7. and dow ar 1 tha ave P 2eare Ona oe In writing to friends, at the kinds of | ry The diameter of : led hunt. he save Japanned, Brass & > diameter of the drum M b / F burned fully seegesersl, ue ame a ness of the helt hue ] ancl trations to send on the iron In Tin Plated Rs utside belt diameters 1 ‘ , ree ~ lover the pullev of ' 4 MAL OEE RAREALELLLERELER BIRD | piece T is a cuard to catch the emerv-wheels. and is | | hao that the te pisa CAGES. | back out of the way whe f ay | The method of s r mé Catalogues furnished is shown in Fig. 3 Iwo fla to the trade. in naives) are let to ne w ee wid amp . " - ithe wheel hb means q he 254 Pear! St., Market Stee! Wire. « Crinoline Wire, tempered and covered, aah ies Ricca Ste NEW YORK. Aliso Patent Tempered Steel Furniture Springs, constantly on hand. | the diameter of pulleys P, so that a ‘ 984, 936 and 938 Weet 29th Street, “ “ . . “ aw SOR. wicsle may be changed on the arbor without , : | | removing it from the lathe Fig. 4 repre > Ye ~~. ~ . - ante g and view of the hearings R for the POWER PRESSES, IRON and BRASS RIVETS, f| 21s 2 ond view of the bearings B for the pieces the two side ones f which are ad RIVET MACHINES, STUDS, PINS, &c., eS are ere en ee Se setting the roll parallel with the bed of the Special Machinery to Order. For Manufacturers of Light Hardware. SU Re eee Na caeeed ge | screws K K, which may also be used nd BLAEE & JOHNSON, lammed tecme diane a1 casionally yperating them to raise the roll as WATERBURY, CON N. | the carriage ( proceeds nlone the | Vhan | the wheels have fra‘ ed lf e lengt f theroll. the screws K are operated t |} avain t eng und hat . POPE,COLE & Co.) ies, B being found tet the effect of » that the workman’s judgement may | BALTIMORE See - tical accuracy mn ' rad larged diameter at the m ddle of } with sufficient accuracy for all al 7 No. 57 South Gay St., BALTIMORE, MD., Have always on hand and for sale A correspondent f tha Philadelnhia F ROUND MACHINERY STEEL ind See ee he eet q +. | attention has been given vy sriantine man to es eo | ce aemeteey tothe: Fuadaw of digas of H Also Cakes, of unequaled — and —— for shafts and other purposes, — = . celestial « dies < saret lly noted, we when found nev trueture 8 | carefully analyzed 1a aceonnt. therefore « | COPPER WORKS, = alae 5 | Weteoriec Iron G. Gunther. + i i ' : f some rory remarkable neteori rons The J Vorton Poole Procees Fig fh See- up to inches in diameter, IS | forwarded n few year age ry an Ame ronal View of Emery-Wheel Arbor and a ean from the State of ehuila, Mexico (one Pa of them to the Smithsonian Institution), may Jearings Patented Brass, Sliver Plated now r I] d b GAUTIER STEEL prove interesting and Japanned 0 a y In the fall of the year 145% there annear d making my ar ‘angvements | vired —_ Mer- over the town of Santa Rosa ahuila, a icans and two Indians as cuides, and started BIRD CAGES. ° | most bri ant meteor, speeding in a north nto the mountains in a northwest direction, DEPARTMENT of Cambria Iron [ren direction. Amorig ochor inhabitants of | the same as taken by Dr. Long, and found the town who watched the fiery wanderer he iron about 90 miles from Sante Rosa nardis Can be nested for ox: | jt across the sky was ’r ong, an As no vehicle could go into the moun -> port shipments, American. who had resided many ur@ in Aine y he ronte we entered I spent Co., at Johnstown, Pa. Santa Rosa, and who described it as most teu me n a new road whereby i 46 Park Place, | beautiful ighting 1p the ghole horizon. and he ox-teame ring them ont and get NRW yer. No. 23. |leaving in ite wake a ruddy trail of light. them to Sante Rosa. They (the irons) oon- Shortly after it disappeared from sight arson st of eight pieces, varying from 290 nde | PI x I a por , loth, Largest variety in patterns and unsurpassed in 8 low prices, New Lilustrated Catalogues and Price Ss Lists on application. FOUNDRYMEN’S METALLIO Pattern Letters and Figures, | | | | To put on patterns of castings. All sizes. Re- ; Juced prices. _Mnfa. bv H. W. Knight, Seneca Falls, N.Y. | THEOMPSON’S PATENT FOR WET PULVERIZATION OF ROCKS, ORES, ROLLING MILL FIX AND OTHER MATERIAL, : EITHER COARSE OR TO AN IMPALPABLE POWDER, | STEPHEN P. M. TASKER, SOLE MANUFACTURER, Care of MORRIS, TASKER & CO, Limited, | PHILADELPHIA, U. S. A. Centrifugal force applied to a rolling ball for the purpose of pulverizing, Tested } thorougbly and guaranteed to yiekd a greater product of pulverized material of equal | <i. ae > Le ; fineness in a given time with less wear. less power, less first cost and less cost for! ie ma a repairs than stamps or any other palverizer. . Bergen Por t Spelter.| J. CME ood MINES : WORKS & FURNACES, as HOWARD EVANS #high Valley, Pa. Bergen Port, N. J. PURE cE, | LEHICH | | rhe only Miners and Manufacturers of | ‘ MOLDERS’ TOOLS, SPELTER FOUNDRY FACING, E From Lehigh Ore. | : MOLDING SAND, Especially adapted for aan : FOUNDRY SUPPLIES, Cartridge Metal and German Silver. : tT. A. EMERICK «CO os Also manufacturers of = _——_ ‘ \neing . 1056 to 1076 Beach St., PHILADELPHIA, SERGEN PORT OXIDE ZINC. perior for Liguip PAINT on account of its body . vearing properties, Established 1810. Incerporated 1882 SERCEN PORT ZINC Co. - , ’ ) | i BR ogee as tag 622k FISHER, Agent, 13 Burling Slip, N. Y. THE STARR BROS. BELL CO). | Hi: Section Through ; . eee 9 Successors to Veazey & Wuirr,) EAST HAMPTON, CONN. Ges: LALVIN WELLS, A. MEANS, the distant mountains ’ A © 8 ent ¢ pounas wl ° Reestbeiits Sanenes. Manufacturers of Every Variety of heard, immediately ed : ee ; val i ; ‘et explosion . ne explosion tl : tmu at —_— ° i af ( a ‘ ? Our Gitiiaien et Bound Shean Strap of Finale Bells. t rust ave fallen sor ; : pms Sees hougat x MANUFACTURERS UF . . oes’ one wan oe Stace kal ; ; cain tee ‘i. as. i ae S Orders by Telegraph Solloited. fei sade to ena - sate : ad pare ere is er tatement f the oo ee t ae er two dea rd and ste hi ' ay assed : m¢ it : o = }SHEET ZINC, Mencken & schwerte RON AND STEEL WIRE WORKS, “uimtctticracr'no my een ee ona aa 8 AT SCHWERTE, WESTPHALIA, GERMANY. see Ce el ee eee sail cei ena = PRU. ILLINOM, The largest Wire Works in the worid. Make, m x2 traips, “TPEL AND IRON WIRE RODS of al ee reat ne eae to ore es ok a : ya as is Gimensions down to No. § amd 9, Stubs gauge. Also, FINE IRON, HOOP [RON BAR TRON in ai | Weiebing 10 or ounds wi at ‘ , gains ne - umensions and qualities. : posed was silver, but whioh the after dis-' of the masses, causing @ ringing sound like g. A, FISHER, - - - Agent, | SOLE AGENTS FOR THE UNITED STATES: covery would apparently show ave been | silver a dismounted and wae confirmed d, | F but ea mali 1e6ceé f ne x] 160 et ” ur : f iver nd ook hway a ” te | WOLTMAN & MICKERTS, ST. LOUIS, MO. Sd inthe year .868 chat Dr. il. 3 etl, snc} Mire iilr, 7 ANSONIA BRASS & COPPER CO., No, 19 Cliff Street, Phelps Building, NEW YORE, BRASS AND COPPER Watrbry ‘Brass Ot Sheets, Bolts, Rods, Wire, &c, Sheet, Roll and Platers’ Brass; CERMAN SILVER, Seamless eae & COPPCT | copper, Brass and German Silver Wire| Brass Butt Hinges, upbing. BRASS AND COPPER TUBING, Jack Chain, Ansonia Corrugated Stove Platforms, COPPER RIVETS & BURS, | Kerosene Burners, Mfg. Company, MANUFACTURERS OF German Silver and Gilding Metal, Copper Rivets and Burs, KEROSENE BURNERS, PLUMBERS’ MATERIALS. LANTERNS and TRIMMINGS, Clocks & Fly Fan Movements, Rolling Mills, BRAZIERS’ AND SHEATHING COPPER, ROLLED. SHEET & PLATERS’ BRASS GERMAN OR NICKEL SILVER, Capper Wire for Eleetrical and other purposes, Bras and German Silver Wire, Copper Rtwets and Burrs, COPPER BOTTOMS FOR TEA KETTLES AND BOILERS, Cor. Larned & Fourth Sts., Detroit, Mich. COPPER AND BRASS. NEW YORK. etal Goods, manufacturing Metal MANUFACTORY, Bridgeport, Conn. CLIFF STREET, SCOVILL MFC CO ——— BRASS, HINCES WIRE, CERMAN.SILVER. WAREHOUSE, PHOTOGRAPHIC GOODS. ST. LOUIS, MO., BUTTONS, CLOTH AND METAL.’ DEPOTS, FACTORIES 419 & 421 Broome St., N. Y, Waterbury, Conn, 177 Devonshire St., Boston. New Haven, Gona, 183 Lake St., Chicago. New York City, DICKERSON, VAN DUSEN & CO., Importers of Tin Plate, Pig Tin, Sheet Iron, Copper, Wire, Zinc, Etc., 29 & 31 Cliff St., cor. Fulton, DICKERSON & CO., Liverpool. NEW YORK. A. C. NORTHROP, Waterbury, Conn., NOVELTIES IN BRASS AND OPHER METAL GOODS FOR HARDWARE TRADE. rought fren and Beans Mochine & Screws; Turned, He Round ont Squaee Head Cap and got Lorews: Brass and pon Sectey one Jack Chain; alt, ted and use Trimmings of of all ae © a lron, yor eo oe ed axtision. oF t or any description of Sheet Metal work, respectfully solicited and MANUFACTURERS OF ALL KINDS OF ROME IRON WORKS, Manufacturers of Brass, Gilding Metal, Cop- per and German Silver (in Sheets, Rods, Tubing or Wire), CORPER & BRASS RIVETS AND BURS. Rome, New York. Mieke. Holmes, Booth & Haydens, *WATERBURY, CONN. NEW YORK, BOSTON, 49 Chambers St. Manufacturers of a)l kinds of Brass, Copper & German Silver, ROLLED AND IN SHEETS. Tubing, Copper Rivets & Burs. BRASS & IRON m117 Liberty Street. THE JOHN A, ROEBLING'S SONS CO, WIRE ROPE), Brooklyn Brass & Copper Co., Dealers in Ingot Copper, Spelter, Lead, Tin, ‘ Antimony, Solder & Old Metals. 100 John Street, New York. Iron and Steel on, ted Cops, | Teleganh Wie,| WIRE |PASSAIC ZING CO. Heisting Purposes of ati}! Market Wire, FOR Macmiiaatamnes af Market Wire, Fence Wire, Bridge Wire, Chain Wire, Lightning Hods, &c., &c. Buckle Wire, Spring Wire, ; Suspension Bridge Cables. Rivet Wire, &e., ae. CALVANIZED WIRE CLOTHES LINES. kinds, for Ferries, Stays, Ship Rigging, Sash Cords, Vineyard Wire. Pure Spelter Cartridge Brass, Gas Fixtures, Bronzes AND ALL FINE WORK. Also for Galvanizers & Brass Founders. MANNING & SQUIER, Gen'l Agents, 113 Liberty Street, N. Y. Geo. W. Prentiss & Co., LYOKE, MASS., MANUFACTURERS OF WIRE. BRODERICK & BASCOM ROPE CO., MANUFACTURERS OF WIRE ROPE BRODERICK& BASCOM ROPE Co. IRON WIRE ROPE, STEEL WIRE ROPE, 728 N. Main St., St. Louis, Mo. WORCESTER wiht ce Py — 5 nee » Coppered, Annealed and Tin ed, Also GUN SCREW WIRE Of all s ? — straightened and cut to order. No. 35 Manufacturers of IRON AND STEEL WIR For all Purposes. WORCESTER, MASS, BROWNING, SUN é oO. 85 Chambers St. Belt Moste, Cotters, 8 ae Reve, B Bia, . Stap veryth raining tow ding. P fate *yactory, BROOKL THE IRON AGE. ThePlume & Atwood SHEET and ROLL BRASS and WIRE, Copper Electrical Wire, Pins, Particular attention paid to cutting out Blanks and 19 Murray St., N. ¥. HARRISON WIRE CO, STEEL AND IRON 18 Federal St. BRASS & COPPER WIRE, poapir een JACK CHAIN, DOOR RAIL. WORKS ROSELING S New York Off German Silver Spoons, - eee og S| SILVER PLATED FORKS & SPOONS, TRENTON, Warehouse, Kerosene Burners, &c. JOHN DAVOL & SONS, Agents for December 28, 1889 PHILIP L. MOEN, CHARLES F. WASHBURN, \; / President & Treasurer. Vice President & Secretary. Washburn & Moen Mfg. Co. Established, 1831. Capital, 81,500,000 WORCESTER, MASS. WIRE DRAWERS. Patent Galvanizing, Rolling and Tempering, lf ANUFACTURERS OF ‘ SS Serer — y 1] — —— PURE COPPER WIRE BRUSS KETTLES, Lamp Trimmings, &c. f [ < Electrical Purposes, Bare and Covered) 4 0 pos) peeaee Tage,| 18 Murray Street, New York. TRON, AND IRON AND STEEL WIRE. Phosphor Bronze Rods for Pumps, &c. PERCUSSION CAPS, 13 Federal Street, Boston. Jk Of Every Description. }- ANSONIA * REFINED POWDER FLASES, Pee sce. | i Measures Reiling Miil, actorics, INCOT COPPER. "eekeieen tes Ghee af aie: aaa Bog THOMASTON, Ct. | WATERBURY, Ct. | A SPECIALTY MADE OF { ——— ~~ | Sartzidge Metal in Sheets or Shell Bg | errmsg er GALVANIZED TELEGRAPH WIRE, j PHELPS, DODGE & CO |capcwen mie. core tine ot sport-|Bridgeport Brass Co) f= cazrazzep recernone wine, | IMPORTERS OF } ing Goods. manepactonans 08 Sir wey ptchs po. WIRE BALE TIES, ita DEPO Millie At CN TEEL BARB FENCING TIN PLATE, [20 Broadway, New York, WATERBURY,| Sheet and Roll Brass, ; AND PUMP CHAIN. ‘ f ROOFING PLATE, 125 Eddy St, Providence, R. 1 Conn | Brass & Copper Wire & Tubing, WAREHOUSES Nov, For, 16 Cli and 24: Peal Street. ' . ‘ cago, to7 and r i] Sheet Iron, Copper, Pig Tin, Wire,|SS—SCSSCT_ | German Silver Metal and Wire, w ” y 7s tind, de: Detroit C B Copper and Iron Rivets. } ' sf sel etroit Copper & Brass) Copper ane tron Mivols. es ee a “NATIONAL WIRE AND LANTERN WORKS.” Warehouse, 45 Fulton Street, New York, And California Wire Works Co., San Francisco, Cal. Manufactory, Nos, 1197, 1199, 1201, 2203, 1205, 1207, 1209 and rerr De Kalb Avenue, Brooklyn, N. Y, No I Also C BRASS, COPPER & IRON _ CLOTH, oe [) Wire oe b, partiy Galvanized Arbo ror Wire Fenee, Guards Summer House, or Railing, No. 9. ~" ieee COAL AND SAND SCREENS. Iron and Steel Locomotive Spark Wire Cloth, ai inti , KXYY iM RAR a Wire Cloth for Sugar, Milk and Rosin Strainers, Dutch Wire Cloth, care Wi Wire Smut Cloth, re Bolting Cloth, Heavy Rolled Cloth for Malt Kiln Fl Larg < Wire Work, Wire Fence, Railing and Guards, Also, Hand and Railroad Lanterns, low price scxninniiia:eiin ghana ani seiagas tia te aatieeeche oe a oné ABRAM 8, HEWITT, President. JAMES HALL, Treasurer. WM. HEWITT, Vice President. E. HANSON, Secretary. TRENTON IRON COMPANY, TRENTON N. a ‘Manufacturers of [RONand STEEL WIRE OF ALL GRADES, BRIGHT, ANNEALED, COPPERED, TINNED AND GALVANIZED Iron and Steel Wire Rods; EXTRA QUALITIES OF BAR IRON AND RODS. Best Qualities of Gun-Screw and Charcoal Iron Wire; Crucible, Siemens-Martin and Bessemer Steel Wire. Wire Straightened and Cut to Lengths, pew ¥ York Office, COOPER, HEWITT & CO., Slip. elphia Office, JOHN HEWITT, Agent, a ? North ourth St, IRON AND STEEL WIRE ROPE For Hoisting, Running & Standing Ropes, Ferries, &c. CONSTANTLY KEPT ON HAND. Address: HAZARD MFG. CO., Wilkesbarre, Luzerne Co., Pa. FELTEN & GUILLEAUME, MINES : Lehigh Valley, Carlswerk, near Cologne, Germany. The only PATENT CRUCIBLE STEEL WIRE, ning and Plow Ropes, LE Hi i SIEMENS-MARTIN AND -BESSEMER SI STEEL WIRE, GALVANIZED TELEGRAPH WIRE Fror of Charcoal and Swedish Iron and Steel, also with high conductivity, and in long lengths. Es GALVANIZED STEEL WIRE, Cartridg For Plain, Bart and Strand Fencing, 3; «gat vote Geen. & Staples, ce. Annealed oe Oiled Fencing BERGEN uperior for Lig ud wearing pro WwiRE ROFPE OF EVERY DESCRIPTION, 'B ERCER TELEGRAPH CABLES. —— one to 4 ‘Beare nay ©. candy - a Im, COLO’ = house in the braneh on the Con- c ALVIN WEL for U. 8. and Canada President. PERKINS & CHOATE, 23 Nassau St, N.Y. A. LESCHEN « SON, ILLIN¢ 5 és Manufacturers of = MA > 2 3 = S Bee : Zs Ee ; +5 5 nha 72 | SHEI — ss 4 => » pa eS = s = cS re OF EVERY DESCKIPTION. Ea 919 to 923 N. Main St. ST. LOUIS, MO. Correspondence invited. : A. FISk 13 Burlis D . . S December 28, 1882, CARY c& MOEN, 0. LINDEMANN STEEL WIRE for all ourposes and STEEL SPRINCS of every description. & C0. Manufacturers of all | kinds of \ j Japanned, Brass & | Tin Plated $8. BIRD a CAGES. Catalogues furnished to the trade. 254 Pearl St., NEW YORK. UOTE SD EA LALA VEL LO LELELLLLEEALAALLEALLEE WIAAATAA MAA SATATAIAA A * <a WOU ILL ELL LL ELLER LAE ] | | | Market Stee! Wire, Crinoline Wire, tempered and covered. Also Patent Tempered Steel Furniture Springs, constantly on hand. 934, 936 and 938 West 29th Street, - ~ - ~ - NEW YORK. POWER PRESSES, RIVET MACHINES, Special Machinery to Order. IRON and BRASS RIVETS, STUDS, PINS, &c., For Manufacturers of Light Hardware. BLAKE: & JOHNSON, WATERBURY, CONN. POPE,COLE & Co. BALTIMORE COPPER WORKS, No. 57 South Gay St., BALTIMORE, MD., Have always on hand and for sale INGOT COPPER, Also Cakes, of unequaled purity and toughness. G. Gunther, Manufacturer of Patented Brass, Sliver Plated | and Japanned BIRD CAGES. Can be nested for ex- port shipments, 46 Park Place, NEW YeRK. -_ Largest variety in patterns and unsurpassed in low prices, New Lilustrated Catalogues and Price Lists on application. FOUNDRYMEN’S METALLIO Pattern Letters and Figures, To put on patterns of castings. All sizes. Re- duced prices. Mnfd. by H. W. Knight, Seneca Fails, N.Y. TETOMPSOoOn’s PATENT FOR WET PULVERIZATION OF ROCKS, ORES, ROLLING MILL FIX AND OTHER MATERIAL, EITHER COARSE OR TO AN IMPALPABLE POWDER, STEPHEN P. M. TASKER, SOLE MANUFACTURER, Care of MORRIS, TASKER & CO., Limited, PHILADELPHIA, U. S. A. ROUND MACHINERY STEEL, for shafts and other purposes, up to 6 inches in diameter, is now rolled by GAUTIER STEEL DEPARTMENT of Cambria Iron Co., at Johnstown, Pa. No. 23. a Centrifugal force applied to a rolling ball for the purpose of pulverizing. Tested } thoroughly and guaranteed to yiekd a greater product of pulverized material of equal 4 Ls eS # fineness in a given time with less wear, less power, less first cost and less cost for ~ _Yepairs than stamps or any other pulverizer. ’ Bergen Port Spelter. MINES : WORKS & FURNACES, Lehigh Valley, Pa. Bergen Port, N. J. The only Miners and Manufacturers of PURE LEHICH SPELTER From Lehigh Ore. Especially adapted for Cartridge Metal and German Silver. Also manufacturers of BERGEN PORT OXIDE ZINC. Superior for Liguip ParrT on account of its body — ’ and wearing properties. Established 1810 E. A. FISHER, Agent, 13 Burling Slip, N. Y. : : (Successors to Veazey & Wuires,) CALVIN WELLS, A. MEANS, HAMPTON. CONN. Manufacturers of Every Variety of President. Manager. ILLINOIS ZINC CO., SLEIGH BELLS, DEXTER BELLS, SHAFT CHIME, GONG CHIME. Our Specialty, Fancy Bound Broadway Strap of Dexter Bellis. J. A. EMERICK, HOWARD EVANS. MOLDERS’ TOOLS, FOUNDRY FACING, MOLDING SAND, FOUNDRY SUPPLIES, J. A. EMERICK & CO., 1056 to 1076 Beach St., PHILADELPHIA. Incerporated 1882. BELL EAST MANUFACTURERS UF Orders by Solicited. SHEET ZINC, |menven & schwerTe IRON AND STEEL WIRE WORKS, AT SCH WERTE, WESTPHALIA, GERMANY. Wire Works m the world. Make, on 12 trai STEEL r y : , : ; AND IRON W ODS o down to No. § and 9, Stuba gauge. Also, FINE IRON. HOOP IRON Bar tho ou msions and qualities. P “ SOLE AGENTS FOR THE UNITED STATES: WOLTMAN & MICKERTS, ST. LOUIS, MO. Telegraph PERU, ILLINOIS. hs E.A. FISHER, - - - 13 Burling Slip, New York, Agent, THE IRON AGH. ’ 3 ceive the taper ends of the arbor x, and are Butcher, who had at that time his home in provided with oil-pockets at each end. There Mexico, heard from the son of Dr. Long is a driving pulley on each side of the emery- of the descent and probable vioinity of the wheel, and equal belt-speed is obtained as! remarkable meteor, and, alive to the value follows: Two belt-driving drums, MN, are of such a contribution to science, Dr. employed, and each belt passes over both, as Butcher made preparations for a thorough in Fig. 7, and down around the pulleys P. ; search for it. ; than the | ti The diameter of the drum N is les diameter of the drum M by twice the thick ness of the belt, thus equalizing inside and | making outside belt diameters, since they both pass over the pulley of the emery arbor. The piece T is a guard to catch the water from the emery-wheels, and is hinged at the back, 80 that the top is a lid that may be swung back out of the way when necessary The method of securing the emery-wheels is shown in Fig. 3. Two flanges, Z (made in halves), are let into the wheel, and clamp the wheel by means of the screws shown The bore of these flanges, Z, is larger than the diameter of pulleys P, so that the emery- wheels may be changed on the arbor without | removing it from the lathe. Fig. 4 repre- sents an end view of the bearings B for the roll to revolve in, being provided with three pieces, the two side ones of which are ad- justable by the set-screws, so as to enable | setting the roll parallel with the bed of the lathe. The hight is adjusted by means of screws, K K, which may also be used to grind a roll of larger diameter at its center by oc- casionally operating them to raise the roll as the carriage C proceeds alongtheroll. When the wheels have traversed half the length of the roll, the screws K are operated to lower it again, it being found that the effect of a slight operating of the screws K is so small that the workman’s judgement may be relied upon to use them to give to a roll with prac tical accuracy any required degree of en larged diameter at the middle of its length with sufficient accuracy for all practical purposes. = Meteoric Iron. attention has been given by scientific men to the study of the periodicity and composition of meteoric bodies. The time of flights of these showers of celestial bodies is carefully | noted, and, when found, their structure carefully analyzed. The account, therefore, of some very remarkable meteoric irons forwarded a few years age by an Ameri- can from the State of Coahuila, Mexico (one of them to the Smithsonian Institution), may prove interesting : In the fall of the year 1837 there appeared over the town of Santa Rosa, Coahuila, a most brilliant meteor, speeding in a north west direction. Among other inhabitants of the town who watched the fiery wanderer shoot across the sky was Dr. Long, an American, who had resided many years in Santa Rosa, and who described it as most beautiful, lighting up the whole horizon, and leaving in ite wake a ruddy trail of light. Shortly after it disappeared from sight among | in P the distant mountains a rum! f Ls heard, immediately followed by a te ic explosion. Supposing from the quick detona hat it exploded as it reached the earth, a hat it must have fallen somewhere between danta Rosa and the mountain—}35 miles distant Dr. Long started out the next day with same friends to examine the route, hoping to find it, but after two days’ hard and steady riding and searching they abandoned the hunt and returned to town. Shortly afterward an Indian brought into Santa Rosa a fragment weighing 10 or 12 pounds of what he sup posed was silver, but which the after dis covery would apparently show to have been | silver steor but a small piece of the exploded meteor at ocourred in the year 1868 that Dr H B, In writing to friends, at the ne of his rewarded hunt, he says: ‘I have returned fully successful, and am preparations to send on the iron. In The J. Morton Poole Process.—Fig. 6.—See- tional View of Emery-Wheel Arbor and Bearings. making my arrangements I hired eight Mex- icans and two Indians as guides, oa started into the mountains in a northwest direction, the same as taken by Dr. Long, and found the iron about go miles from Santa Rosa. As no vehicle could go into the moun- tains by the route we entered, I spent two days in exploring a new road whereby the ox-teams could bring them eut and get them to Santa Rosa. They (the irons) oon- sist of eight pieces, varying from 290 pounds, CoO)., Fig. 7.—Section Through Carriage and Swing Frame, Showing Roll and Emery Wheels sifton ichis the smallest, to 6<4 pounds, which is largest, making a total of nearly 4000 | Before the explosion the weight must have been much greater, as it is not probable | have secured the whole, and we know some as taken away by the Indians, who thought they found large masses of silver and car ried their specimens to Santa Kosa It ap pears there is on record a statement of the meteor having passed over the city in 1837, and one of my guides relates as a fact that at that time (1537) a Lepan Indian was rid ing one of their emall ponies through the valley, when his stirrup struck against one of the masses, causing a ringing sound like He dismounted and was confirmed in his opinion of silver, and took away a i piece 10 or 12 pounds in weight, which he ee THE IRON: AGE: December 28, 1889, OGDEN & WALLACE,|4. B. Warner & Son,| OXFORD IRON CO. W. D, WOOD & c0, § 85, 87,89 & 91 Elm St., New ae IRON MERGHANTS, (B. G. CLARKE, Receiver,) Iron and Steel 28 & 29 West and 52 Washington Sts Cut N ails ot every aoenpuon sept inatcs | IRON & STEEL BOILER PLATE. Agents for Park Brother & Co.'s BLACK DIAMOND STEEL. BOILER TUBES, SPIKES. All sizes of Cast and Machinery Steel constantly | Angle, Toe and Girder Iron, band. Boiler and Tank Rivets. ] ROADSTER PATENT Planished Sheet Iron. J. 8. SCRANTON, Sales Agent, 81, 83 and 85 Washington Street, NEW YORK. Sole Agents for the celebrated LUKENS, PENNOCKS, 7] “ WAWASSET,” ** EUREKA.” Brands of Iron. Alsoal! descriptions of Plate, Sheet, Established 1790, aaa, JOHN W QUINCY & C0 sept. oa ee oth, to nae STEE L TOE 24 & 26 Broadway, 77 & 79 New St. ROME MERCHANT IRON MILLS, 98 sand Street, New York. a IMPORTED “AUSSIA IRON. ve Extra Quality atin pg NEW YORK CITY. sisahdamman al eta grade of Anthracite & Charcoal Pig lrons, and at a much less price ; Bar Iron, Bands and Fine Hoops.| —"reuant Sorap, Out watts, Copper, FOR SALE ] t ; oso rn Ba ra Be Romaine | LOCK TM, LEAD, SPELTER, AITNDIY, NICKEL, de by all the prinetpa — of Iron branded .< i a ee ee ee ee ee ee S er ron. tod. O. ae "Our be font to tpg Mc “n HARRISON& GILLOON M E TA L D E A L E R Ss STEEL PLATES, all descriptions. Biréet, New Yorks catetten In the Large Cities throughout All Sizes and Shapes kept in Stock IRON AND METAL DEALERS, FOX & FOX & DRUMMOND, ots th: ds WATER OF. bm ae at, | Fe UNTO SIN TeS Cut Nails and Spikes, Plate and Sheet And at their OMec, Iron, all descriptions, NEW YORK, ABEEL BROS., nara hang ander fr tal Re ole ang | 111 Water Street, PITTSBURGH, PA. | SHOENBERGER & C0., ***#a7=™ Machinery Scrap Iron, Car Wheels, Axles and Heavy tae ht he ae. old Copper, Composi tion, Brass, ewter, Zinc BURDEN’S HORSE SHOES. 305 WATER ST, | NEW YORK. RAILWAY “ULSTER” IRON, AND ‘““CATASAUQUA” IRON, ROLLINC MILL ALLENTOWN SHAFTING, MATERIAL. NORTH BROS,, 23d and Race Sts., Philadelphia, Fine Light and Medium-Weight GRAY IRON CASTINGS to order. Correspondence solicited. W. S. MIDDLETON, Y Broker in Machinery & Iron oe a And full assortment of sizes of the best brands of REFINED IRON, Bead, Hoop, Scroll