International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 341
steam or compressed air, without tripod orcolumn. The principal parts are as follows: 1 is the cylinder. Atthe right hand or back end of the cylinder there is awasher 2, and a buffer 3, to receive the piston when itstrikes at this end. Immediately behind these are therotation washer 4, <^^^^ the… … and forth with it over the rifle bar 8. This compels arelative rotation between the bar and the piston, but as thepiston is very much the heavier, the tendency is that onlythe bar will rotate. It is controlled, however, by the rota-ting ratchet 5, and allowed to turn only in one direction.The…
Railroad engineering
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