Opening Pages
‘The Published every Thursday Morning by DAVID WILLIAMS, No. 83 Reade Street, New York. A Review of the Hardware, Iron and Metal Trades. Vol. XXV: No. 4. On Improvements in Machinery for | Rolling Iron and Steel Plates.* Before proceeding to describe the nature of the proposed improvements, it will be well to notice briefly the method generally adopted at present in rolling plates, as compared with that in use for producing flat bars, angles or other sections. These latter forms of manufactured iron | are produced by means of rolls with several grooves of gradually decreasing sectional area cut on their surfaces, so that generally two, and sometimes three, pairs of rolls are required to contain the number of grooves rough 12-inch strip, is cut to waste on the edges alone. In other words, whereas a pile of 6 cwt. would be heavy enough to make a bar of a given weight 12 inches wide, a g-cwt. pile would be required to produce a sheared plate of corresponding dimensions. This difference, of course, de- creases as the width of the bar or plate increases, because the proportion which the allowance for waste bears to the whole mass becomes less and less the wider the plate. In all cases, …
‘The Published every Thursday Morning by DAVID WILLIAMS, No. 83 Reade Street, New York. A Review of the Hardware, Iron and Metal Trades. Vol. XXV: No. 4. On Improvements in Machinery for | Rolling Iron and Steel Plates.* Before proceeding to describe the nature of the proposed improvements, it will be well to notice briefly the method generally adopted at present in rolling plates, as compared with that in use for producing flat bars, angles or other sections. These latter forms of manufactured iron | are produced by means of rolls with several grooves of gradually decreasing sectional area cut on their surfaces, so that generally two, and sometimes three, pairs of rolls are required to contain the number of grooves rough 12-inch strip, is cut to waste on the edges alone. In other words, whereas a pile of 6 cwt. would be heavy enough to make a bar of a given weight 12 inches wide, a g-cwt. pile would be required to produce a sheared plate of corresponding dimensions. This difference, of course, de- creases as the width of the bar or plate increases, because the proportion which the allowance for waste bears to the whole mass becomes less and less the wider the plate. In all cases, however, to insure a sound edge, a very liberal allowance must be made, notwithstanding which there is a very great loss in all plate mills, due to the pro- or spaces necessary. Thus the production | of large sections of angle, tee, channel | iron, &c., is very expensive on account of | the first cost of the rolls, in cases where the section is an unusual one and the quantity of lengths required is not large. On the , other hand, as the bar is rolled to its exact section and no allowance need be made in | forming the ~ for waste in shearing (ex- | ch as is necessary to insure a | cept so mu clean end to the bar), the cost per ton rap- idly diminishes with the increase in quantity produced. Thus, of all forms of rolled iron, double- headed rails are the cheapest; then follow the commoner sections of angle iron, &c., used in shipbuilding, while the most expen- sive forms of all are the heavier sections of channel and joist iron, the cost of which is not only augmented by the ordinary difficul- ties attending their manufacture, but also, and perhaps to a still greater degree, by the smallness of the quantity required at one time. and totally different conditions have to be taken into account in estimating the cost of any given specification. Here the cost of the rolls is not to be considered, nor is the quantity required at one time of much im- portance. The chief point affecting the cost of production (supposing the specification to require only plates of ordinary length, breadth and thickness) is the variable pro- portion of waste in rolling plates of different Ni A ‘ened widths and lengths, due to the fact that a certain width must be sheared off each side, as well as off the ends. In the trade a bar is supposed to be 8 or 9 inches wide and under. All above this are taken as plates unless specially ordered as bars, most large bar mills now rolling bars up to about 12 inches wide if required. Bars above this latter width become very expen- sive, chiefly on account of the number of rolls which would be required for intermedi- ate widths, &c., as well as the great number of sections of puddled bars which it would be necessary to provide. All above 12 inches wide and many under are, therefore, rolled as plates, and sheared on the sides as well as the ends. The process nfy be described as follows: A pile is made of puddled bar and of scrap, the latter composed of the shear- ings off finished plates. The puddled bars are generally from 12 to 18 inches wide, the width being regulated to some extent by that of the finished plate intended to be pro- duced. After being heated, the rough pile is first put through blooming rolls, to close the edges and to compress and solidify the mass. It is thea turned sideways to the rolls, and put through the roughing rolls as many times as are hecessary to bring it to the required width, allowing a margin for shearing and for inaccuracies as to straight- less, &c, Itis then turned again and grad- tally elongated, partly in the roughing and partly in the finishing rolls, until brought down to the required gauge, regardless of | its length. In order to insure a perfect plate, it is necessary to allow, say, at least 3 inches on each side in a strip of fair ‘cagth, so that more than 30 per cent., ina *Read before the Institution of Mechanical Engineers by Mr. Edward Hutchinson, of Darling- Wa, England. With plates another state of things exists, | i New York, Thursday, January vertical rolls move a little faster than those of the horizontal rolls. In practice it is not found desirable to compress the edge much more than is just about sufficient to pre- serve, without decreasing, the width, and the piles are generally made about the same width as the finished plate is intended to be. This implies the necessity for great diversity of width in the puddled bars, a difficulty which is usually got over in Bel- gium by using several narrow bars of varia- | ble width to form the tops and bottoms of the piles. Thus, from a stock composed of 5, 6, 7 and 8 inch puddled bars, piles of all 'widths above 10 inches could be built up, Fig. 1.—Elevation of Hutchinson’s Rolling Mill. YY) 7 | Fig. 2.—Plan of Hutchinson’s Rolling Mill. HUTCHINSON’S ‘ portion of plates which, owing to defective edges, will not cut to the size required. In steel the difference in value of the finished plate and that of the resulting scrap is, of course, greater than in iron, and the result- ing loss is more serious in the same propor- tion. In order to overcome these objections to the prevailing method of rolling plates, at least as regards narrow plates, the mill known as the ‘‘ Universal Mill” was de vised. It has also been called the Belgian mill, from its frequent adoption in Belgium. In this country it has not been generally successful, owing chiefly, it is believed, to the objection English workmen have to novel appliances, or, rather, perhaps to the difficulties which manufacturers in this country experience in adopting labor-saving machinery. The writer, however, has had an opportunity of judging of its merits dur ing several months’ fair work at the Britan- nia Works at Middlesborough-on-Tees. The construction of the Belgian mill is not, in a strict sense, of a complicated nature. When, however, we consider the great strength | required for every part of this class of ma- | chinery, the rough usage, and the enormous cost of breakdowns and delay, we shall find that there are certainly more parts requir- ing careful adjustment about the Belgian mill than is consistent with the highest economy in production; in other words, if bars could be rolled in ordinary rolls of the same widths as in the Belgian mill, the lat- ter could not compete with the former in point of economy. The Belgian mill is sim- ply an ordinary mill with a pair of vertical rolls behind the horizontal ones, These | catch the plate as it leaves the horizontal rolls, and compress the edge sufficiently $0 close and solidify it. The surfaces of the Iron Age Entered at the Post Office, New York, as Second-Class Matter. 22, 1880. haps, however, the most important point in its disfavor, especially for rolling steel, is the limit to the width of plate that can be produced by it. If the horizontal rolls are 6 feet 6 inches long, and the verticals 2 feet in diameter, 2 feet 6 inches would be the limiting width of plate for such a mill: since the vertical rolls when opened to such an ex tent come in contact with the standards. This was the limit at the Britannia Works ; and plates were rolled there 32 feet long, by 2 feet 6 inches wide, % inches thick, with perfectly sound and straight edges. No greater difficulty seems to attend the manu facture of wide than of narrow plates, ex Fig. 3.—Vertical Sec IMPROVED MILL FOR ROLLING IRON AND STEEL PLATES. | rising by inches. It is, however, impossible to admit that a plate so made—i. e., with a welded instead of a solid surface—can be so sound or so uniform in tensile strength across the grain as one produced in the or dinary way. Most Belgian mills, probably with a view to avoid expensive complica tions, consist of only one pair of horizontal rolls working in combination with vertical rolls, and these are usually in connection with an ordinary plate mill. This prohibits a large production, as the rolls become too hot if the work is continuous. The manipulation of the Belgian mill is by no means a simple matter, nor can it be placed in the hands of inexperienced or un- skillful workmen. The slightest maladjust ment of the screws, either of the vertical or a very considerable saving may be effected. horizontal rolls, will cause the plate to twist ; cept a tendency to buckle when the plate is} very wide and thin. This tendency to bucle, or bend up, between the vertical rolls would require, in plates above 2 feet wide, | to be obviated by some special contrivance. This has not yet been worked out, and, al-| though it is obvious that such an appliance | could be devised, this complication would | add very materially to the objections which already exist. The advantages of the Belgian mill may | thus be said to be confined to large establish- | ments where more than one plate mill is in con- | stant operation, and where a sufficient quan- | tity of plates under about 2 feet 6 inches in width may always be selected from the} orders in hand. 82.50 a lear, Including Postage. Single Copics, Yen Cents. consequently, rises or falls as the top roll is adjusted in hight. By working the screw E a motion in the direction of its length is given to the top roll A, its necks being of such a form as to allow of this motion while the bottom roll B remains firmly fixed between the standards. Attention to the drawing will show that end motion being given to the top roll A, it will carry with it the collar D, while collar C remains stationary, and by this means the distance apart of the two collars is adjusted ad libitum, being limited only by the travel allowed to the top roll A in the direction of its length. The illustrations show the form of box and spindle which has been adopted, and which has been found to present ne in convenience. The rolls are adjusted verti- cally in the usual way, but clearly they must not be allowed to open so far as to draw the collars out of the grooves. As this system of rolling is applicable to every stage of the process—forge rolling, blooming, roughing down and finishing—and to steel from the ingot as well as to iron from the pile, it will be necessary to describe it in con- nection with all these separately, as it will | be found that there are certain points in each requiring special consideration. Firstly, as to forge rolling. It is at all times inconvenient to use very wide piles, on account of their not heating uniformly, and of the space and hight required in the furnace to allow of their being turned ; hence, it will probably be found that rolls arranged for bars varying in width from 12 to 24 inches will meet all requirements. The collars and grooves would have to be of such a size as to allow of a vertical adjustment of j}about 5 inches. Such a mill would be an {extremely simple affair, and need nut be further described, but its use would be attended with great advantage in connection with all plate mills, whether the bars were to be afterward used in mills of the same |construction or not. The same may be said | as regards mills rolling large sections of bar iron, as the same pair of rolls would pro- duce bars of any width, obviating the ne- cessity for frequent change of rolls Y Le ‘tion of Hutchinson's Rolling Mill, Secondly, with regard to blooming. In some mills this operation could be advan tageously combined with roughing down, and both operations done in the same rolls, the latter process being in fact but a con- tinuation of the former. Where Jarge plates were made, however, this wouid be found impracticable, as sufficient vertical adjust ment in the top roll could not be obtained in one pair of rolls without cutting very deep grooves, and so leaving the roll dangerously weak. It is therefore necessary to have blooming rolls with a vertical adjustment in ordinary mills of about 5 inches; so that, taking a pile 12 inches deep, they would squeeze it down at once to 10 inches, and Under such circumstances | then by successive adjustments of the rolls | to a minimum thickness of 7 inches, at which Whether or not it could be profitably ap-| the roughing rolls are calculated to deal while, if the vertical rolls are allowed to ex- plied to all classes of work is a problem | ercise any undue pressure on the edge, it which could be solved only at considerable becomes thickened to such a degree that the expense. The accompanying illustrations show the; the blooming process. however, that provision has only been made for puddled bars up to 2 feet wide, and per haps even this is somewhat in excess of plate is sure to curve more or less the next time it is passed through the rolls, and any general construction of a sliding roll mill, attempt to straighten it afterward is gener- designed to accomplish the same object as Under any circumstances the the Belgian mill, without being open to any ally useless. action of the vertical rolls is, toa certain « with it. - Thirdly, as to roughing down. This, as already stated, is simply a continuation of It must be remarked, »f the more serious objections to the use of what could be used with due regard to degree, objectionable. The pressure, how- the latter. The construction of this mill | « ever slight, has a tendency to open the edge, may be thus described: The ordinary rolls furnace : and the thickening, which it is always diffi- « cult to avoid entirely, is for many purposes standards a pair are substituted of the form a serious drawback, as, for instance, where shown on the drawing. a number of plates of uniform width are|the top roll A and the bottom roll B are nearly alike in form, and that a collar, C, is placed in juxtaposition, as in the flange sconomy of hight and space in the heating hence all plates above this width of a plate mill are removed, and in the same would have to be rolled with their length in It will be seen that i of a large girder. The difficulty of | placed on the top roll A, and a collar D on | keeping the plates straight, and the im-! the bottom roll B. practicability of afterward straightening | cast solid on the rolls, but are capable of them, as already mentioned, will always be| sliding them, being held, however, in one 1 an objection of greater or less importance to | position, as regards the other roll, by corre- the general adoption of the Belgian mill. To| sponding grooves. Applied to the end of | these may be added its great expense, as| the top roll A is a powerful screw, E, which | well in first cost as in maintenance. Per-| takes its thrust from the top chock, and, | the direction of the width of the pile. There s no objection whatever to this, and it is frequently practiced for convenience sake in ordinary plate rolling. In these cases the ength of the pile would correspond as nearly These collars are not as may be with the width of the plate. Fourthly, as to finishing rolls. These are nade with still smaller collars than the roughing rolls, the adjustment necessary being extremely limited, say from 1 to \ nch ; in other respects the rolls are of tha same general form, It will be seen that it a a ee ms Snes — = afeeast +25 -“ oes © Se — = | ‘4 q a = a en 2 2S ee ae ME WA ee a ae EO me - a aus we tes St A 5 Ce aoe oo ae THE IRON AGE. we fRetals. The Plume & Atwood Mfg. Company, MANUFACTURERS OF SHEET and ROLL BRASS and WIRE, German Silver and Gilding Metal, Copper Rivets and Burs, Kerosene Burners, FActals. ANSONIA — BRASS & COPPER CO., No. 19 Cliff Street, Phelps Building, NEW YORK. PHILIP L. MOEN, CHARLES F. ae President & Treasurer. e President & Secretary. Washburn & Moen Mfg. Co. Established, 1831. Capital, $1,500,000 WORCESTER, MASS. WIRE DRAWERS. Patent Galvanizing, Rolling and Tempering, MANUFACTURERS OF BRASS AND COPPER Waterbury Brass Co. AL, - - $400,000. ae 7 Rods, wes &c, Sheet, ‘Rol and Platers’ Brass, Copper, Brass and German Silver Wire, Tubing. BRASS AND COPPER TUBING, Ansonia Corrueated Stove Platforms. CQPPER RIVETS & BURS, |1.amp ‘Trimmings, &c. PURE COPPER WIRE BRASS KETTLES, : 5 MANUFACTURERS OF wha? nici Purposes, Bare and Covered.| Door Rail, Brass Tags, 80 Chambers Street, New York. TRON, AND IRON AND STEEL WIRE. ; hosphor Bronze Rods for Pumps, &c, PERCUSSION CAPS, 13 Federal Street, Boston. Of Every Description. 109 Lake Street, Chicago. Rolling Mill, | Factories, POWDER FLASES, ANSONIA * REFINED Metallic Eyelets, Shot Pouches, Tape Measures, &c. A SPECIALTY MADE OF ___-INCOT COPPER. __ fy 1 elgaealaens THOMASTON, Ct. | WATERBURY, Ct. ole Agents for the ym ares y > - PHELPS, DODGE & CO, | career mre. cos rine orsport-/ Bridgeport Brass Co GALVANIZED TELEGRAPH WIRE, J ing Goods and Wood’s Paper "J GALVANIZED TELEPHONE WIRE, IMPORTERS OF Shot Shells. MANUFACTURERS OF PATENT STEEL WIRE BALE TIES, DEPOTS: Milles At > 7 Ar : TIN PLATE, 296 Broadway, New York, wATERBURY,| eet and Roll Brass, . pape op! an Brass & Copper Wire & Tubing, German Silver Metal and Wire, Copper and Iron Rivets. OILERS and CUSPADORES, { LAMPS and TRIMMINGS, LANTERNS and TRIMMINGS, | KEROSENE BURNERS, Clocks & Fly Fan Movements. | PLUMBERS’ MATERIALS. Particular attention paid to cutting out Blanks and NEW YORK OFFICE: ST. LOUIS OFFICE: CHICAGO OFFICE; 21 Ciiff St, 707 No, Second St. 215 and 217 Lake St. 189 Eddy St., Providence, R. |. Conn, BROWNS PATENT PICTURE HOOK. ROOFING PLATE, Sheet Iron, Copper, Pig Tin, Wire, Zine, &c. MANUFACTURERS OF COPPER AND BRASS. NATIONAL WIRE AND LANTERN WORKS, Warehouse, 45 Fulton St., N p or Oil 10g In contact with the CLIFF STREET, NEW YORK. ED Wervented to held seo the manufacturing Metal Goods. P MANUFACTORY, WAREHOUSE, SCOVILL MFC CO se lcaakeiaag | AMM, Laken aes th HOWARD & MORSE, Brass, Copper & Iron Wire Cloth, —_—~—__— BRASS, HINCES, WIRE, CERMAN SILVER. PHOTOGRAPHIC GOODS. Solid brass, priee, $4 per gross, less 25 discount. BUTTONS, THE NEW HAVEN —e—ee COPPER CO., Locomotive Spark Wire Cloth, Iron Wire Bolting Cloth, Ship & Railroad Lanterns, Signal Lights, Conductors’ Lanterns, Adjustable Globe Hand Lantern, Desk and Office Railing, Riddles, Coal and Sand Screens, : = Nursery Fenders and Spark Guards, ) Ornamental Wire Fence. Harrison Wire Company, ST. LOUIS, MO. Manhattan Brass Co., 1st Ave., 27th to 28th St., New York. THos. W. Fircs, Cuas. Fisn, Prest. and Treas. Secretary. MANUFACTURERS OF All kinds of DEPOTS FACTORIES, t194421 Brame StiN-Y, Wawro Com. | 266 Pearl Street, New York. | IRON & STEEL WIRE 183 Lake St. Chicago. New York City, Manufacturers of and Dealers in ait DICKERSON, ‘NAN DUSEN & C0.,/Braziers’ & Sheathing| wire mun Specialties.| Tin Plate, Pig Tin, Sheet Iron, Cooper, COPPER. Holmes, Booth & Haydens, WATERBURY, CONN. This Lantern is known as the H, & M. Star Lantern. Wire, Zinc, Etc. 29 & $31 oug St., eg Fulton, Kettle Bottoms, Bolts, Circles, Rivets, NEW YORE, BOSTON DICKERSON & CO., Liverpool. NEW YORK. Ingot Copper, Spelter, Solder, ke, 49 Chambers St. 18 Federal St. The Best Burning Kerosene Ou Lantern in the Market ; for the M H. & M. Star Lantern, with Candle Socket, Sperm and Kerosene ‘Vil Bursers. Manufacturers of al! kinds of Established 1837. Incorporated 1876. WATERBURY MFC. CO., WATERBURY, CONN. Brass and Plated Safety Chains, Bath and Basin Chains, Brass Nuts and Washers, Special Brass Work. Correspondence invited. Brass, Copper & German Silver, ROLLED AND IN SHEETS. BRASS & COPPER WIRE, Tubing, Copper Rivets & Burs. BRASS & IRON JACK CHAIN, DOOR RAIL. German Silver Spoons, aes aaa tie ROES ; or aint ns = vq New York Office AT Warchouse 117 Liberty Street THE JOHN A. ROEBLING'S. SONS CO, MANUFACTURERS OF TRENTON, Brass and Iron Jack Chains, Silvered, Nickeled and Gilt Chains, Chisel Handle Ferrules, Brass Machine Screws, N. & G, TAYLOR CO. | igs SILVER PLATED FORKS & SPOONS,| WIRE ROPE) o....02n0 |Iron and Steel ESTABLISHED 1810. | agg iag Kerosene Burners, &c. lron, Steel and Copper Telegraph Wire, WIRE = LX INT re i. A —_ Es Ss n JOHN DAVOL & SONS, Hoisting aad of all Market Wire, A specialty for sizes used in the manufacture of ~-& G. TAYLOR Co. iuaiie te Cheese Vats, Can make any size ’ kinds, for Ferries, Stays Market Wire, F wi sme ¥ | amect Fim Roofing Tin Brooklyn Brass and Copper Cov , , ’ . . » Semee wise Cream Pans, | Secs Time Sheet ivan? eee Ship Rigging, Sash Cords, Vineyard Wire, | Brid4ee wire, Chain Wire, Lightning Rods, &c., &c. Buckle Wire, Spring Wire, Rivet Wire, &c., &c. Suspension Bridge Cables. CALVANIZED WIRE CLOTHES LINES. IRON AND STEEL WIRE ROPE For Hoisting, Running & Standing Ropes, Ferries, &c. CONSTANTLY KEPT ON HAND, Adress, HAZARD I HAZARD MFG. CO., Wilkesbarre, Luzerne Co., Pa. vm FELTEN & GUILLEAUME, Galvanizers & Brass Founders. Carlswerk, near Cologne, Germany. MANNING & SQUIER, Gen'iAgents |PATENT CRUCIBLE STEEL WIRE, For Mining and Plow Ropes, Hawsers and Bridge Cables. SIEMENS-MARTIN AND BESSEMER STEEL WIRE, Ingot Copper, Spelter, Lead, Tin, Antimony, Solder & Old Metals. John Street, N. Y. PASSAIC ZING CO. Manufacturers of Pure Spelter FOR Cartridge Brass, Gas Fixtures, Bronzes| — AND ALL FINE WORK. Milk Cans, Sheet Copper, Sheet Lead. Cotton Cans, &e. Sheet Brass, Send for our special prices and list of sizes. ABRAM 8. HEWITT, President. JAMES HALL, Treasurer. WM. HEWITT, Vice President. E. HANSON, Secretary. TRENTON IRON COMPANY, (INCORPORATED 1847), TRENTON, NEW JERSEY, MANUFACTURERS OF IRON and STEELWIRE OF ALL CRADES, BRIGHT, ANNEALED, COPPERED, TINNED AND GALVANIZED; Iron and Steel Wire Rods; EXTRA QUALITIES OF BAR IRON AND RODS. 113 L liberty Street, N. Y. Geo. W. Prentiss & Co., Best Qualities of Gun- Screw and Charcoal lron Wire} j HOLYOKE, MASS. wm Flusseisen, Swedish and German Charcoal Wire. Crucible, Siemens-Martin and Bessemer Steel Wire. MANUPACTURERS OP GALVANIZED TELEGRAPH WIRE of Charcoal and Swedish Iron and Steel, also with high conductivity, and in long lengths. CALVANIZED STEEL WIRE, ‘or Plain, Barb and Strand Fencing, 3, 4 and 7-ply Strand, Staples, &c. Annealed and Oiled Fencing Wire, round and oval. WIRE ROPE OF EVERY DESCRIPTION. TELEGRAPH CABLES. Contractors to ihe German and Foreign governments. The attest house in the branch on the Con tinent, Delegra —_ aadoeak CARLSw K ‘RK, COLOGNE, * GRAY ENAMEL WARE. WIRE ROPE,/C4UT ER j. WOOL GRISWOLD, Be Sele Agent for POESES, JONES & CO., Re Manufacturer of is now prepared to supply the wholesale trade only Wire Straightened and Cut to Lengths, Represented in New York by COOPER, nEW mT « oo. “9 a7 Burling Slip. BRODERICK &* BASCOM, MANUFACTURERS OF Brigne, , Conpered, Annenied and Tin Pla GUN SCREW WIRE, Of all e:zee otraightened and cnt to oraer vith Plain, Ground, Enaineled and Tinned WIE E, HOLLOW WARE. Gray Enanre! Maslin Kettles and Steve Ware & TROY N : clalt y. This is the most durable enamel in the market t » Mee Ue | Mee and Warehouse, 78 Beekman St.; N+ See page 30, January 22, 1880 eae i ih HI Hi iil IH i o Ro The Sch Man s SOL Stereotype, LmPorte ors of E ad, Spelter, 4 and all kinds Street, betwe =] * P. O. Box r Manufac Hardware Kerosene Late A Orders sent d mediate profits R. SE Dealer Tin Plate mea iw ‘@ the H. & M. Star Lantern. eet el yire yire, yire, encing ls ye Con 5 OOn, de only pa 7 market 4 4 January 22, 1880. is impracticable to provide for more than a] descent of birds from re ptiles. When the CAR a «Ke MOEN, limited length of travel for the top roll in | first incomplete specimen, oe »w in the British Manufacturers of any case, but more especially is this true of | Museum, was discovered it was declared to STEEL WIRE for all purposes and STEEL SPRINCS of evory description. | +). fishing rolls, where the pressure in| be a bird because it possessed a bill, feathers cas = rolling is greatest ; otherwise the rolls would | and claws. The complete skeleton now found become dangerously small in diameter in] has shown that the animal has many of the proportion to their length. In practice it | characteristics of a reptile, having scales as will probably be found that a travel of about | well as feathers, a bill and teeth, claws on 2 feet will be as much as is convenient. So] its wings and a tail, that beginning at 12 inches width, one pair The desirability of avoiding the leakage of rolls would finish up to 3 feet and all in-| of bottom seams in boilers has led to the in termediate widths, Another pair would] troduction of sundry experiments to over begin at 3 feet, and with a travel of 2 feet | come the difficulty would finish up to 5 feet, covering all inter ' mediate wiaths. Where two mills were in constant operation the one could be kept on the narrower and the other on the wider plates ; but where only one was in use the rolls would have to be changed occasionally, Patentees and Sole Manufacturers of | 0. LINDEMANN & =| RECENT IMPROVEMENTS IN BOILER MAKING Spring Brackets for Bird Cages, |} And manufacturers of the largest variety of | in England show a tendency toward the adoption of the system of welding the plates in complete rings, so as to avoid the neces sity of having a rivet joint in the bottom of the boiler. This plan of construction is now ULE LL LAL LAL ELLE LEELA LALA LLLL LE VEER LELLLLELELELALLLLAL LAE Japanned, Brass and Tin-Plated Bird | Cages in this Country. VOL IIL EEL LL LELL LLL LEE Catalogues furnished to the trade. 254 Pearl Street, New York. a — probably not more frequently than once a a i a alt Market Steel Wire, Crinoline Wire, tempered and covered. week. 4 extensive use by a oa of firms = Also Patent Tempered Steel Furniture Springs, constantly on hand. The relative merits of this system of roll- |, ngland, and s me Little re the advisa 934, ase and 938 West M9th Street, - - - - - NEW YORK. ing: as compared with those of the Belgian | ?'""Y of introducing the welding process into the engine department of the Palmer Shipbuilding and Jron Company (limited), Jarrow, was under the consideration of the managers of that firm ; but while it was ad mitted that welding the plates into one ring provided the remedy desired, it was looked upon with suspicion alike by Lloyds’ Associa tion and the representatives of the Board of Trade, on the ground that the soundness of the work was dependent upon the individual skill of the workman employed in the opera tion of welding. Out of the consideration and thought devoted to this important sub ject, however, @ new method to overcome the acknowledged difficulty was hit upon. The boiler plates are made sufficiently long to enable a complete boiler ring to be formed of only two plates, instead of several short ones, as is the custom in the ordinary mode of construction. The first barrier, that of getting plates rolled up to the requisite di mensions, was speedily surmounted by Mr. Roberts, the manager of the Jarrow Rolling Mills, who, by means of new large rolls, was able to turn out boiler plates weighing, when finished, from 33 cwt. to over two tons. The second difficulty, however, was not so readily masteréd. By the use of the ordi nary horizontal ‘‘ bending rolls” the work of bending the extra-sized plates into proper ‘* set’? was found to be an operation of very great difficulty, and entailing the expendi ture of a large amount of additional time and labor. Atlength, however, Mr. William Gibb, the manager of the engine depart ment, conceived the idea of using vertical ‘* bending rolls” in lieu of the horizontal rolls. The idea was promptly developed, and a set of the new style of rolls has just been erected at Jarrow by Messrs. Scriven & Co., of Leeds Old Foundry, to whom the task of designing and making the new plant was intrusted by Mr. John Price, the general manager of Messrs. Palmer's. The new rolls are of exceedingly simple arrangement, and are eminently successful, for by their use there is a large saving of the labor and time consumed in the ordinary course of plate bending ; and what is of equally valuable importance, the required ‘‘ set” of the plate is obtained to a nicety, and with perfect ease. The Revue Industrielle describes and illus trates in a recent issue, FARCOT’S CONTINUOUS ILLUMINATING GAS PROCESS. mill may be briefly noticed. It will be at once remar ked that po real side compres sion can be given to the pile when rolled in 6 this way. In practice, cnt this can not be effected even with the vertical rolls in the Belgian mill; nor is such compression | necessary or desirable, as the pressure of the | main rolls is quite sufficient to squeeze the piece laterally to such an extent as to make it fill the space between the collars in the one case, and between the vertical rolls in ‘ the other, and so forma close sound edge. WITH But while in the Belgian mill the plate is NEW STYLE OF KEY [iiss "int main rolls, and then to lateral pressure by NOW READY. the vertical rolls, in the sliding roll mill the pressures on sides and surface are simul taneous ; and consequently no thickening of the edge or other similar imperfection is possible. i | hil : In the Belgian mill the pile must invariably " g i ; be put into the rolls endwise, so that every | pile must be made as wide as the plate to be | rolled from it. This is a great difficulty | when the plate is over 18 inches wide, and, so far as the writer is aware, has yet to be see page 114, Large Catalogue No. 6. overcome. The collared roll is also much more readily adjusted to width than are the vertical rolls of the Belgian mill. In the latter case not only the rolls themselves, but also the guides, both before and behind the Pi MADE ON LY BY TH E rolls, have to be adjusted with the greatest HH NN ig H mi nicety. This causes considerable loss of My f | Sample keys on application. For prices, &c., he ‘ time and waste of fuel and material, as after every readjustment one or two experime a plates have to be rolled to test its accurac The difference between the two mills in oaks of first cost need hardly be pointed out. The | sliding roll mill does not greatly exceed, either in first cost or working expenses, a mill constructed on the present model ; while a Belgian mill would cost about twice 8 #9 as much, Lastly, the rolling of steel plates by means of the machinery described will obviously present no difficulties. This point has already been alluded to; but inasmuch as rolling iron from a pile is a much more complex operation than rolling steel from a solid ingot, the former process has received for the present the most attention, more perhaps than its declining importance de- STA M FO £2 D co N N serves. Steel plates must sooner or later be 9 "8 | used, to the very general exclusion of the inferior material ; and it is confidently be lieved that the adoption of the process de scribed would go far to lessen the great dif ference at present existing between the cost of making steel plates and that of making iron plates of an equal weight. —— SCIENTIFIC AND TECHNICAL, i i ri . : o Office and Works, His apparatus consists of a short iron charg ing hopper, from the lower end of which ele vator buckets carry the coal to the retort. The latter is a cast-iron or fire-clay box, within which a circular disk mounted on a vertical shaft slowly revolves. The fresh coal is distilled during the time required for about one revolution, as it is carried from off the table by a cast-iron shield under which the former moves. The gas made is washed and purified in the usual manner. Mr. W. Finlay, in a letter to Engineering, bears witness to the efficiency of THE PERKINS HIGH-PRESSURE ENGINES. He states that a 25-horse-power engine, working 10 hours a day for seven years at a pressure of 350 lbs. per square inch, has used 314 ewt. of coal and half a gallon of distilled water per day. A second 50-horse- power engine has, with the same pressure, worked 2'4 years with 514 cwt. of coal and 2% gallons of water per day of to hours. A 200-horse-power engine, worked only up to 100-horse-power for six months, has a pres sure of 375 Ilbs., with 11 4 ewt. of coal and 314 gallons of distilled water per day. | i il lh | “Wil li a Hh SALESROOMS, Mr. Eugene Vanderpool, in a paper read before the Society of Gas Lighting, gives the results of some experiments made by | him and Dr. Schuessler to determine THE CALORIFIC VALUE OF GAS. | He heated 2.75 lbs. of water from 68° F. to | 150 degrees by 0.709 cubic feet of ordinary | 16-candle coal gas, thus finding that one leubic foot will develop 318 heat units. A mixture of 65 per cent. of hydrogen and 35 per cent, of c ‘arbonic oxide was the on tested, with a view to obtain approximately the calorific value of water gas, the composition of which approaches these figures. They found that it took 1.65 cubic feet of this gas 93 Chambers St, New York, 36 Pearl St. Boston, 906 Commerce St. Philadelphia. No. 1620. List price, per dozen, $15, WIRE RAILING MONITOR TIN PLAT Ee WORKS, AND 54 Cliff Street, New York to heat the same amount of water to the | Ornamental Wire Works. eee Se ae eet one ahi Nouh Howard 8%, Be [LARGE TINNED SHEETS for DAIRY and OTHER PURPOSES, COTTON CANS, Foe excatieendatloged s7a.6 hen No. 36 North Howard &S&t., Baltimore. : » . 20- | and all special sizes, shapes, gauges and qualities, from tot c », x¢ ite, c iderably less than illuminating : . eee ee ie Bet a as , pes gauges and qualities, from 1 to 40 inches wide, 100 96 ches long. "| unite, considerably lees Dr. Neumayer has presented to the Geo Screens, Woven Wire, Iron Bedsteads, Chairs, | Guaranteed Equal in Every Respect to Best Seca 5 According to Dingler’s Poly. Journal, B graphical Soe iety of Berlin, a remarkable photographic apparatus for determining UU On eee —_—_————————. el & Co., of Stuttgar jermany, ROME IRON WORKS, | CONDIT, WICK & CO., have invented a process for Manufacturers of or, at least, preparing leather for receiving Brass, Gilding Metal, Cop- a Manufacturers and Merchants, photographic images. They first coat the material, black leather being the best, with per and German Silver a thin film of varnish, and then with a mix THE TEMPERATURE AND CURRENTS OF THE have invented a process for OCEAN PHOTOGRAPHING ON LEATHER, 2 5 7 It consists of a brass box hermetically closed, and having attached to it an appar atus resembling a vane or rudder. Within this box a thermometer and a magnetic Wholesale Dealers in needle are contained, behind each of which i -e of albumen and white lead. After dry-]- coe In Sheets, Rods, Tubing or Wire), ' , cure o : ; ¥ | is placed sensitive photographic paper, and : ei Sheet, Tank and Plate Iron, Nails, Glass, Horse Shoes, Horse Nails, ing, the photograph is made in the usual in Front of each of them a small nitrogen way. vacuum tube. The box also contains a COPPER & BRASS RIVETS AND BURS. Rome, New York. and other articles of HEAVY HARDWARE, Some time since news was received by cable from England to the effect that Mr. CLEVE LAND, OHIO. MacTear, a chemist at the St. Rollox Works, Glasgow, had discovered a process for making Te Schoenberg Metal Mig Co. |"NTATAN.thaace®mEs °°) BROWN:& BROTHERS, (sores: ossorm Manufacturers of [This statement was not supported by any Manufacturers of and Dealers in tlt} ' teh! particulars which might serve as a guide in 4 ~ >a | Specialties in House Furnishing Hardware. 81 Chambers St., N. Y. Waterbur : ‘ ; : ea SOLDE Re TY PE, PATENT EXTENSION none ERORS ' yy Conn. | dete rmining the value of the process or the Stereotype, Electrotype and Babbitt Metals, (Pat. Jan. nature of the product obtained. Professor Importers of Block Tin, antimony, &c. Refiners of > Maskelyne, a prominent chemist, now lays Lead, Spelter, &c. eee srice paid for Old Metals and all kinds of Dross. 1 and 513 East 19th Mireet, between pn & B, New York. Ss. L. SAMU -K L. P. O. Box 1300, 57 Cedar St., N. Y. Manufacturers’ EXPORT Agent for Hardware, Brassware, Classware, small induction coil. When the apparatus is lowered to the required depth, the rudder causes it to take a direction parallel to the current there existing, and hence a definite direction with reference to the needle within. The thermometer soon acquires the temperature of the water outside and be comes stationary. At this instant an electric current is sent to the box, which, by means of the induction coil inside, lights up the little nitrogen tube, the violet light of which, photographically very intense, prints, in about three minutes, the position of the needle and the hight of the mercury column upon the prepared paper. The current is then intermitted, the apparatus raised, the photographic tracing fixed, examined and placed upon record Among the various explosives which have been introduced to supersede gunpowder for 29, 1878) Manufacturers of t 1 i . mnmearnaieres = before the public the proofs that the crystals every variety of . ° »_* 3 made are not diamond, but consist of a com style. Silver-Glass, sili r possibly of re the * : = j pound of silica, or possibly of more than one Silver Center, Fine il . | Cut. &c. Fitted with such compound. The materials submitted to a een Some {him by Mr. MacTear were too small to see | unless by very good eyesight or with a lens. | They did not even scratc ha polished surface heavy silver-plated mountings. Extend | « t have the optical ae ”. | Im Sheets . of sapphire, and did no e op They can be adjust » Holls, Rods, Wire, i | properties of the diamond. They did not from 1 to 3 inches, OODEN WARE, ed to doors of any Kerosene Goods, Burners, Wicks, Oil. sae ie : Rivets and Burs, Ete. | burn before the blow-pipe. He found, how- | special purposes, gun-cotton still maintains Late Agent for Wa. H. SamvugL & Co. uckness = withou lever, that the supposed diamond particles » forem« -e. For submarine mi Orders sent direct will save the purchaser all inter the annoyance of ALSO. ‘ , PI I the foremost place. or submarine mining would dissolve in hydrofluoric acid, and that the solution evaporated to dryness left be hind a slight reddish-white incrustation ber”? (Pat. Nov. — ss oe : Herr Carl Vogt, at a recent meeting of 1877) prevents all | PATENTED SEAMLESS BRASS AND COPPER | naturalists at St. Gallen, Switzerland, made possibility of the , HOUSE BOILERS, warranted to stand 200 Ibs, | some interesting observations in regard to ursting of the glass | pressure and guaranteed against vacuum, bulbs. | THE ARCHAOPTERIX, ahr t ete | PATENTED SPRING TEMPERED SHANK, | a fossil, the complete skeleton of which was Send for illustrated | SILVER-PLATED, FLAT TABLE WARE, in rich | recently discovered in the Solenhofen slates — lists and circu- | designs, The animal is half a reptile and half a bird, and is one of the strongest points of evidence THE STAR SALT CASTER CO., Boston, Mass. GERMAN SILVER SPOONS AND FORKS, in favor of Darwin’s theory in regard to the operations it has no equal, owing to the fact that it is not liable to deterioration when exposed to moisture. Recent experiments have conclusively shown that this substance may be as successfully exploded by detona tion when submerged in water and confined only in arope net, as when inclosed in an air-tight iron case. According to the Uni versal Engineer, recent IMPROVEMENTS IN THE MANUFACTURE OF GUN-COTTON, ntroduced by Mr. Punchoun, mark a new mediate profits. the old-fashioned washers aod pins. | SBAMIeSS Brass & Copper Tubing. | Our ** Patent Cham R. SELLEW & CO. Dealer in METALS, Tin Plate, Sheet Iron, Copper, &c. SAINT LOUTS. THE IRION AGE. 3 i ¢ wilt , : aif lt \ yd "hy ut NG Ady ! . h as _—- en 2 ae ee es ek owe THH IRON AGH. January 22, 1880. ees’ RvON. ae | Xv ont, Xo, Xvon. Fron, N EW YORK. NEW YORK. ___CNEW YORK. _ jets PITTSBURGH. PITTSBURGH. OGDEN & eee A. B. Warner & Son, John W. Quincy, IRON MERCHANTS, | Anthracite & Charcoal Pig | lrons, DER WALL! W. D. WOOD & CO0’S; A. G. HATRY, 28 & 29 West and 52 Washington ots, | | Wrought Scrap, Out Nails, Copper, MIDVALE STEEL WORKS. 7 oT DEATE, voxtutansrare wna nec.t Commission Merchant, Bar, Sheet, Tank, Boller, Angle, T, and Railroad Iron, And Railroad Equipment. Nails & Spikes Steel & R. R. Supplies, WINDOW GLASS, GAS PIPE & BORAX. PITTSBURGH, PA. id a JUNIATA 85,87,89 & yes — ST., N. _ A full assortment constantly on hand of Cast, Machinery, Tool, Spring, Tire, Sleigh Setler Ta Ashe: Seo & Gietee brew | Seer aeomed Shoe, Toe Calk, Plow and Blister Steel. e bes, ® 0 | F Orders solicited for | Boller nag Py ie yn eltctanten | HARRISON & GILLOON pg pink “rhea a ee | RON AND METAL DEALERS, __—‘ Steel F Forgings | and Castings. pin sets 6c Eureka, ” Pennocks, | O58, 000, 008 WATRR OT... and 000, 904, 6 CHERRY ST. 6“ ” NEW YORK, PIERSON & CO., “Wawasset,” Lukens, esse finan ion, WesCo ae | Brandsof Iron. Alsoall descriptions of Plate, Sheet, “Machinery ron lag. 0 BD fon taneben = yond 24 & 26 Broadway, 77 & 79 New St. y | and Gasometer Iron. Special attention to Locomotive Seaton wter, Zip | ron. Fire Box Iron a specialty. eee oe ae a ROME MERCHANT IRON MILLS, ‘OXFORD IRON CO., “PICKS” of all kinds, sé ESOPUS ” HORSE SHOE IRON, igen nw (B. G. CLARKE, Receiver,) Bar Iron, Bands and Fine as | N BEAMS, ANCLES, ,fewuortmnyornnnacromnnerenest Uy UT ails quality 0 Iron branded J. All pudd Planished Sheet Iron. Patented March 14th, 1865 ; April 8th, 1873 ; Sept. 9th, 1873; Uct. 6th, 1874; Jan. 11, 1676. Guaranteed fully equal in all respects to the Vy z - IMPORTED RUSSIA IRON, fF | ROADSTER uae A PATTERN, by all the principal Tees, Channels, Sheets, Plates, Ere SNe Pui Stl Agent, d0 down ano METAL DEALERS - All descriptions in stock. IRON & STEEL. MARSHALL LEFFERTS, SPIKES. 90 Beekman St., New York City, ABEEL BROTHERS, | MANUFACTURER AND DEALER, |J: 8: SCRANTON, Sales Agent, Established 1765 by ABEL & BYVANCE, 81, 83 and 85 Washington Street, Iron Merchants, Galvanized Sheet Iron, == 70mm Ist and 2d Qualities. | 190 South Street and 365 Water, N, Y. Galvanized wn, Telegraph and Fence ; Galvanized R U ad D E N "S$ Hoop and Band Iron, Galvanized Rod and Bar Iron, U | S | E RQ | RO N |g —— Nails, Galvanized Chain, Galvanized Iron | A full assortment of all sizes constantly on hand, “CORRUGATED SHEET IRON ere ae For Roofing, &c., Galvanized, Plain or Painted. | i 0 RS i S 4 0 ES , Best Charcoal, Best Refined and Common . Common Iron. In the Large cities throughout | THE UNITED STATES. And at their Office, 111 Water Street, PITTSBURGH, PA. | The U.S. Tron_ and Tin Plate w. SNOW SHOES V HG EH, PA. Th I} BEST, REFINED <CHARCOAL AND | juccly prevent all Salling nad gee olen one LISHED SHEET IRON faction . P Roggers trom an 0 igin the wants of cenaep | | | ors.” Also Best Charcoal Terne ania of const mproved <Sulow Shoe Shapes. “Sana cited a iri tl d. ree = c uiries po y answered. | 5¢x7-16, 11-16x7- a os -16, 13- oo al %x7-16, YX dd Ee Works at beceadne heekeanr treh, Pa Pa, SP OOEDE, SEIS. 2 -AOESG, 3 SORTS. Eastern’ Sales Agents : STEEL TOE CALKS. on Band, Hoop and Scroll fron. SHEET IRON. s098 Ket st Phila. =e Plate and ‘Tank Iron, cy a wus eae |SHOENBERGER & CO, P= C No.1,C H No. 1, Te Ee 5 Suamge, Best Flange, | Rerway Shares. Best Flange Fire Box, Circles - y3 Cast, Spring and Tire Steel, ete. BOILER IRON Burden Bast A. R. W hi it n e y Stamped and Guaranteed. 3 rie.’ ion of Iron Work Galvanized or | Manufactarer of and Dealer in "Fae list Pond } quotations sent upon application. | ro n JAMES W ILLIAMSON & CcO., SCOTCH AND AMERICAN j eS Seal MEWYORK.| PIG IRON, Boiler Rivets. Cc. BANE, Portsmouth Iron and Steel Co., IRON and STEEL. Successors to Old Rails, Wheels, Axles, Springs, GAYLORD ROLLINC MILL Co., Scrap, Turnings, &c., Manufacturers of PIG IRON, BLOOMS AND BAR IRON. Siemens-Martin (Open Hearth) —__rensoencnt “~~ __ | STEEL BOILER PLATE, A, h . . C. A. von Bonnhorst. R A, Wilson Agricultural and Machinery Steel R. A. WILSON & COs | 10 nongonstt ice at Pats at nr 12, 14 & 16 Worth Sts., PIG IRON, Spikes, Fish Bars ar specialty is in r Office and Works : Manufacturing Iron Used in the Con- | No. 6@ Wall St., New York. B L 0 0 M S A N D 0 R E, i: a OHIO. __ 8 Fourth ave., cor, Wood st., Pittsburgh. — Pres’ t ads Gon 1 eT Sup’ t. ie. LEWIS, SS | U LS TER IRON wo R KS.| | Burden Iron Works, H, Burden & Sons, | __***° s and estimates furnished, and contracts mad t be ree Irén Structures of ever Eescsigtion. ks contaiping cuts of all Iron made sent on ap- 90 Broadway, New York. T N, Y plication by mail. roy, s Sample pieces at office. Please address Mudson Street, BORDEN & LOVELL, | Tuckerman, Mulligan&Co U L Ss I e R Bonnell, Botsford & CO., *!witons. tomy. tong, Wathan ncbove ‘| Iron, Nails & Spikes, ‘Keystone Rolling Mill, Williams, Long & McDowell, | i | ieee: ana 0. W. GRAVES & CO., | sentient Reet YOUNGSTOWN, OHIO. | Commission Merchants. yr AL BROKERS, W BB © Bar Iron (BRADLEY, REIS & C0. vorctant Sean Sky | 7O & 71 West St., | — Cor, Cliff and Beekman Sts., New York. ar l 0 NEW CASTLE, PA., | a ap wen, We, Borden, | os New York. ‘TIN PLATE, PIG TIN, IRON WIRE, SHEET Also Best Grades of Manufacturers of every description of Sheets and wieses of all sizes, LN Lovell § | IRON, BRASS and COPPER GOODS, &. | American & English Refined tron. Pl ATE & SHFET IRON: Office, No. 87 Water Street, Agents for the sale of ; aa! a All sizes and shapes in stock <‘ermaaa Pa. Fall River Iron Co.'s Nails, Passaic Rolling Mill Co., EGLESTON BROS. & CO.. OFFICE, at Works. Mil at Some, Seonod Avenue Bands, Hoops & Rods. PATERSON, N. J. 166 South Sts? NeW VoRK C AND | 267 Front § K CITY, ZUG he co iia tenenste| WONG |S "% Borden ining ompany ° And Manufacturers o vad EF. JUDSON i Cumberland Coals. B Channel A tes. oo Pittsburgh, Pa., ' 0 cams, annels, ANZ1Cs, SCOTCH AND AMERICAN Manufacturers of WILLIAM H. WALLACE & CO., THES, Pig Iron IRON MERCHANTS) Merchant Iron, &¢.,8¢. ~~ \icssn «cos Soapirn, | Wheeler's Iron & Steel Combination Shafting, z Cor. Albany & Washington Sts., |New York Office, 138 Chambers Street, 0 LD META LS. Under license of the Combination Trust Co., Philadelphia. = ei aaa engeal FORE CEE: orn Semmes, =o Wor ATERWEATHER, Treasurer. | This Shafting is superior to any now on the market, and the attention of machinists i» = —SANIE ¥. COONEY, | CARM ICHAEL & EM ENS, | 333 & 233 South St: >t NEW YORK. ea ines aac Prices furnished on application. : Late of ee ek to Jas. H. Holdane & Ce.) | SE I R Oo N WwW O R ri =~ - c ssor to Je W. S. MIDDLE _iIR on shieesensucer ipoy, (fon & Steel Boiler Plate, Svaonen Soest" KIRKPATRICK, BEALE & C Ee i BOILER PLATES and S SHEET IRON, | | Lap Welded Boiler Tubes, &c., dec, Ir Fr. Oo INT * Menufacturers ‘of all grades of & 0. = : salar Rivets, Angle & T Iron, ry Malle te Spee 130 & 132 Cedar Street, New York. | Railroad, Mining and Steamship Supplies, FINE SHEET TRONS, s Ga a Eis We Yatre nck | “Baise eon "aan Whe Eire ahing Sie” | Machinery, Hardware & Tools rand, Sold Rolie, Show Card, Stamping, Ton Tray, Polished, Shovel) = orks, The regen R ng at Jersey City as as tue ~| CORRUGATED AND CRIMPED IRON dis 52 JOHN STREET, OFFICE, No, 116 Water St., Pittsburgh, Pa. WORKS, Leechburg, Pa. = « s ’ Nt of. We ROOFING & SIDING, = Bs wn hhetontecn Mill, Allegheny City, Pa.; age Water and Market Sts., Sonera Pa. GERM pinay Val 5. Heater Glengarnock and Carnbroe eee Cee ee an 8 RON ON 2” = = Skylights, Bridges, &£e ; PL <a MOSELEY IRON BRIDGE AND ROOF CO, ST E EL AND | RO N STR U CTU R AL MATERIAL ~~ ¥ 10 W: WALL st, > NX vox. , 5 Dew Street, New York. SCOTCH PIG IRON. Kloman Patent Universal Mill-Rolled Eye Bars. ; J. ae : —— PP. Ww. GALLAUDET, For spot delivery and for prompt or forward eee LIGHT STEEL AND IRON RAILS. — ~ Houdlette: & _Ellis, Banker and Note Broker, shipments to New York, Boston, Philadelphia, “ l MERCHANT BAR IRON. Nos. 3 and & Wall Street, Baltimore or New Orleans, = Mi () lf [ f) N f SAND. N \F Homogeneous Steel and iron Boiler Plates. ‘ EW Teme. ror co te ae? —_ Sheet and Tank fron. boiler, Tank and Safe| HARDWARE, METAL, IRON RUBBER, SHOE, JAMES LEE & CO ¢.5 Best Lap-We aed In Iron Be ler Tubes any malinons SPE WANED ane Sole bose for the United States Alb S d S eevee nae oftsesatatan nO) Te Ping Steet, Now York. | any Sand a Specialty. Genuine and Stam lard “Bab b itt Me etals, ee Crescent Brand Journa)! Bearings. <r 39 to 31 Batterymarch Street, Boston. auvUTr NT A ts : D’ 5 SONS 4 | = N. M. HOGLUND’S & CO., Stockholm. =r Swedish & Norway lron Hot Pressed Nuts, Bolts, Washers, &c. 2 Shovels, Riddles, Brushes, &c. sna ef every descri & on nent at Boston, Se re ms FULLER BROTHERS & CO.,) WHITEHEAD BROS, w=. wamrrmmmap, roan, us ne 1 aoe ak "|i AMERICAN FACING CO. en ome Kerk, Pace bt oer? POTTS, Philadelphia Agent, 234 & 236 N 139 Gr eenwich Street, Ne Ww 7 ork, Bireet Pa- L, January 22, 180. Xvon. PHILADELPHIA. PHILADELPHIA. Siemens’ Regenerative) HENRY LEVIS & Co.. GAS FURNACE. RICHMOND & POTTS, 119 8S. Fourth St.. The Cambria Iron and Steel Works, PSILADELPHIA, PA. | Manufacturers’ Agents For Iron and Steel Rails, Car Wheels, Boiler and Sheet Iron and General Railway Sera. Old Rails, Axles, and 234 8. 4th St., Philadelphia. Vheels bought and sold. Having enjoyed for over TWENTY YEARS the reputation of producing the best quality of RAILS, have now an annual capacity of 100,000 Tons of Iron and Steel Rails, Splice Bars, &. ADDRESS, CAMBRIA IRON COMPANY, No, 218 South 4th Strect, Philadelphia, Or at the Works, JOHNSTOWN, PA. Or LENOX SMITH, New York Selling Agent, 46 Pine St., N. ¥. THE PHCENIX IRON CO., 410 Walnut Street, PHILADELPHIA. anufacturers of CURVED, STRAIGHT AND HIPPED Wrought Iron Roof Trusses, Beams, Girders & Joists, and all kinds ef Iron Framing used in