. Electric railway journal . at the properdistance from the end andwith the proper diameter sothat when babbit is pouredinto it threads may beformed to fit the threadedend or feed screw of the axlebar. At the middle of thelj-in. bar onto which thishandle is fastened is attacheda 3-in. x i-in. strip of ironbent into such shape thatwhen lowered it will hold thejournal brass in position onthe axle. The machine asbuilt was a double one, for boring two bearings simultaneously. For this purposea 4-in. axle was used on one side and a 4i-in. axle on theother because these two sizes chiefly are in use
. Electric railway journal . at the properdistance from the end andwith the proper diameter sothat when babbit is pouredinto it threads may beformed to fit the threadedend or feed screw of the axlebar. At the middle of thelj-in. bar onto which thishandle is fastened is attacheda 3-in. x i-in. strip of ironbent into such shape thatwhen lowered it will hold thejournal brass in position onthe axle. The machine asbuilt was a double one, for boring two bearings simultaneously. For this purposea 4-in. axle was used on one side and a 4i-in. axle on theother because these two sizes chiefly are in use on thesystem. It will be noted in an accompanying illustra-tion that different holding arrangements for the brasseshave been necessary. The two equipments are drivenfrom a single pulley by means of a flange collar asshown. The large wooden pulley is split and fastenedby J-in. studs while the collar is shrunk onto the endof the second machine, the thread being turned off fora short distance, and is held to the pulley by four. MILLING DEVICE FOREND PILLITING OF NEW-LY BABBITED JOURNALBRASS
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
