. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . Fig. 2.—Broaching-machine. Fig. 1.—liroaching-cutters the six sides, twelve seconds. The remain-der of the time is taken in handling thework, the conveniences at hand and the dex-terity of the operator having much to dowith the product. As high results havebeen obtained as two finished hexagonalbolt-heads per minute. Under the worstconditions, it is claimed that a product ofoOO hexagonal nuts jjcr eacli ten hours ca
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . Fig. 2.—Broaching-machine. Fig. 1.—liroaching-cutters the six sides, twelve seconds. The remain-der of the time is taken in handling thework, the conveniences at hand and the dex-terity of the operator having much to dowith the product. As high results havebeen obtained as two finished hexagonalbolt-heads per minute. Under the worstconditions, it is claimed that a product ofoOO hexagonal nuts jjcr eacli ten hours canbe obtained. For bolt-heails the j)roduct isconsiderably more, as the time in screwing anut on to its pin (in (»rder to mill centrallywith the thread) is saved. A broaching-ma-(•hine made by The Pratt & Whitney Co.,Hartford, Conn., is designed for broachingholes of such diametrical form that they cannot be finished by rotary motion, as drillingor reaming. It will work cavities uj) to 2^in. diameter. It is adapted also for draw-ing or for finisliing the outside of work. Bronze: see .Vlloys. Hiickct. I>n«lgiii^: see Dredgers and Excavators. Kiltldlc: SCI ()|T-
Size: 1203px × 2078px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
