. Railway mechanical engineer . indle free for use on certain kinds ofwork without dismantling the attachment or removing workfrciin the table, it being only nccssary to turn the lower arm ofthe attachment out of line with the main spindle. The machine is provided with a spiral dividing head which willswing W/i in. in diameter and take 24 in. between centers, lisspindle can be set at any angle fron 10 deg. below horizontal to10 deg. beyond perpendicular. A vise attachment having agraduated swivel base and a opening of i/t in., aswill as a three-jaw ciiiick 6 in. in diameter arc also i
. Railway mechanical engineer . indle free for use on certain kinds ofwork without dismantling the attachment or removing workfrciin the table, it being only nccssary to turn the lower arm ofthe attachment out of line with the main spindle. The machine is provided with a spiral dividing head which willswing W/i in. in diameter and take 24 in. between centers, lisspindle can be set at any angle fron 10 deg. below horizontal to10 deg. beyond perpendicular. A vise attachment having agraduated swivel base and a opening of i/t in., aswill as a three-jaw ciiiick 6 in. in diameter arc also includedill tin- equipment of the miller The net weight of the machineIS .(X) lb. PNEUMATIC LIGHT FORGING HAMMER Tlie illustration shows a light forcing hammer ft)r o|)eration bycompressed air wliich was designed to handle tool dressing, lightlitnding and straightening, and the miscellaneous forging workwhich is usually done by a blacksmith and helper. The use ofcompressed air permits its location at points in the plant where. Light Wor steam is not available. Air from the shop system at 80 lb. to100 lb. pressure is used, a J^-inch pipe or hose connection beingrequired. The heavy anvil block is cast in one piece with the frame towhich the cylinder is keyed and bolted, the key extending en-tirely across the face of the joint. The guides for the ram arealso secured to the face of the frame. Side housings were 148 RAILWAY AGE GAZETTE, MECHANICAL EDITION Vol. 89, No. 3 avoided in the design in order to keep the working space clearand to facilitate observations of the work under the important bolts have double nuts to prevent them from jarringloose. The piston and piston rod arc formed from one pieceof chrome-vanadium steel, oil treated, while the hammer headand guide shoe are made in one piece of high carbon steel. Theguide shoe is of large area and the piston rod has a long tapertit in the ram. The dies, which are removable, are of special diesteel with hardened faces
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
