. Railway mechanical engineer . ing about % in. of stock and using roughingand finishing speeds as before mentioned. A gang tool cutsthe three piston grooves at one time. Approximately 20 required to machine a 9-in. side rod bushing all connection with reboring worn main rod back end brassesand making the bores square with the straps, a pair of paral- lels have been developed as shown in Fig. 2. The con-struction of these parallels is evident from the illustrationand they are a great aid in lining up the brasses preliminaryto lx)ring. In fact, they practically prevent all chance
. Railway mechanical engineer . ing about % in. of stock and using roughingand finishing speeds as before mentioned. A gang tool cutsthe three piston grooves at one time. Approximately 20 required to machine a 9-in. side rod bushing all connection with reboring worn main rod back end brassesand making the bores square with the straps, a pair of paral- lels have been developed as shown in Fig. 2. The con-struction of these parallels is evident from the illustrationand they are a great aid in lining up the brasses preliminaryto lx)ring. In fact, they practically prevent all chance ofboring the brasses out of square. As with the other new tools the modem 18-in. enginelathe, illustrated in Fig. 3, is held in high esteem at theHoboken enginehouse for the reason that it is powerful,accurate and easily controlled by levers and hand-wheelswithin convenient reach of the operator. This lathe, witha hollow spindle enabling bar stock up to 3 in. in dia-meter to be passed through and held in the chuck, is used for. Fig. 2—Parallels Aid Setting Up Back End Brass making motion work pins and bushings, rod bushings (whenthe boring mill is busy), wrist pins, and miscellaneous pins,guide blocks, etc. A wide range of work is handled, sufficientto keep the lathe busy practically eight hours a day. Second-hand engine truck axles are annealed, cut in twowith the torch, and machined into wrist pins and knuckle
Size: 1865px × 1340px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
