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The Iron Age 1887-03-31: Vol 39 Iss 13

1887 Reed Business Information US

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, 188%, | = le RS eos ‘The Iron Ag N, INDEX 1 ° ry. NOEX T y eo. READING MATTER A Review of the Hardware, Iron and Metal Trades. AOVERTISEMENTS V. Published every Thursday Morning by Davip WILLIAms, Nos. 66 and 68 Duane Street, New York. Entered at the Post Office, New York, as Second-Class Matter. Vol. XXX1X: No. 13. Bees a eae piatetend Peters New York, Thursday, March 31, 1887. A Portable Hydraulic Drilling | with, as wellas the labor and time neces- | No. 3 Morse twist drill, and therefore fit the | In the base G of the motor are slotted holes | proved that on board a large armor-clad Machine. sary for carrying the separate pieces, first | conical shanks of the twist drills from) for fixing it by bolts put into holes in the |man-of war, built on the cellular sys ——— to the drilling shop from the places where |} to 1% inches in diameter. structure, thus insuring perfect steadiness |tem and consequently of very compli Mr. Mare Berrier-Fontaine, of Toulon,| they have been marked, and then back Each drilling machine is composed of two in drilling. A ring with two handles (Fig. 6) lcated design, the number of holes drilled 1 Asmall hydraulic motor M,driven is placed at the center of…

Citation

The Iron Age 1887-03-31: Vol 39 Iss 13. Reed Business Information US. 1887.