. American engineer . time being as follows: Finishing diameters A. & B. 1/64 in. above size ! Finishing piston fit cO m n. Finishing crosshead fit jO m n. Threading piston end 12 m;n. Threading crosshead end 12 min. Total 94 mill. The rod is then transferred to the press just behind^ the fin-ishing lathe where the head is pressed on and the nut press is converted from an old crank pin press and is ad- mirably suited to the work. This operation reciuires 10 minutes. .\fter the head is pressed on. the rod is transferred to thegrinder, where the 1/64 in. remaining stock is rem
. American engineer . time being as follows: Finishing diameters A. & B. 1/64 in. above size ! Finishing piston fit cO m n. Finishing crosshead fit jO m n. Threading piston end 12 m;n. Threading crosshead end 12 min. Total 94 mill. The rod is then transferred to the press just behind^ the fin-ishing lathe where the head is pressed on and the nut press is converted from an old crank pin press and is ad- mirably suited to the work. This operation reciuires 10 minutes. .\fter the head is pressed on. the rod is transferred to thegrinder, where the 1/64 in. remaining stock is removed. Thetime required for this operation is 12 minutes, of which 2 isused in chucking the rod and adjusting the machine. The whole operation of finishing the rod and applying thehead thus requires 193 minutes. rlSTOX P.\CKIXC. .\ stock of packing drums is maintained on a imdera gantry crane just outside the machine shop and the rings aremanufactured for stock. The crane is provided with a magnet lAiJf^. Standard Piston Rod.—Central of Georgia. and the drums are loaded on an industrial car and transferredtL) the boring mill. After being finished to standard size theyare delivered to the store room and issued on order. Whenrings are needed a messenger gets them from the stock and de-livers them to the proper section of the shop, where they arecut and fitted to the head. The drums are made in sufficient length to cut from IS to 18rings and from 38 to 54 rings will be completed in nine hours,the number depejiding >n the ring size-and the amount of stockti> be removed. The mill has two heads, one used for boring andthe other for turning, the two operations being performed atthe same time. From V4 to Vz in. of stock is removed by bothtools. The rings are cut off with a six cutter gang tool,* whichbrings them to exact size without further machining. Each ringlias two water grooves which are made with the other head whilethe gang tool is cutting off the rings. The a
Size: 3061px × 817px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
