. Railway mechanical engineer . the 1 j-16-in. holes in the top dies are counter-sunk. The guide pins are made from 1-in. material. Theguide pin holes in dies 4-4 are drilled with simply the form-ing piece in place between the dies. These tools will be found to do the work very satisfactorilywhere more improved methods are available. No machinework is required after forging the cutting of tliethreads on the e>e bolts. By die use of these tools a stockof clevises and e)e Ijolts can be placed in store and with astock of links bent in pneumatic machines on hand, theengines can he equip
. Railway mechanical engineer . the 1 j-16-in. holes in the top dies are counter-sunk. The guide pins are made from 1-in. material. Theguide pin holes in dies 4-4 are drilled with simply the form-ing piece in place between the dies. These tools will be found to do the work very satisfactorilywhere more improved methods are available. No machinework is required after forging the cutting of tliethreads on the e>e bolts. By die use of these tools a stockof clevises and e)e Ijolts can be placed in store and with astock of links bent in pneumatic machines on hand, theengines can he equipped with safety chains at short notice. PNEUMATIC BOLT CLAMP BY HOWARD W. STULLForeman Machine Shop. Philadelphia & Reading, Reading. Pa. A pneumatic bolt chuck which has been used and provedto be ver) successful at the Philadelphia & Reading shops atReading, Pa., is shown in the drawing. This chuck can beused as an attachment to a bolt threading machine for hold- /1 £ocl<et Shaped Here to. Suit Form of Bolt HeacL-. -\-i-A Detail of the Clamping Head ing short size counter sunk and button headed bolts. Asused by the Reading the chucks are moimted on a triplespindle 1 J-in. National bolt cutter. The barrel of the chuckis placed in the jaws of the machine, which are tightened
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
