. Railway age gazette . uired. The bear-ings are made of a special phosphor bronze. Tlie tapping reverse functions are very simple and powerfuland adjustable from the outside for any amount of wear. Thelubrication system is complete and nearly all of the gears runin oil. The machine has a net weight of 4,200 lb. ADJUSTABLE SPACING COLLAR A collar designed primarily for use in milling machine manu-facturing operations where two or more milling cutters on thesame arbor must be spaced an exact distance apart, is shown inthe accompanying illustration. When it is necessary to grindthe side of the t
. Railway age gazette . uired. The bear-ings are made of a special phosphor bronze. Tlie tapping reverse functions are very simple and powerfuland adjustable from the outside for any amount of wear. Thelubrication system is complete and nearly all of the gears runin oil. The machine has a net weight of 4,200 lb. ADJUSTABLE SPACING COLLAR A collar designed primarily for use in milling machine manu-facturing operations where two or more milling cutters on thesame arbor must be spaced an exact distance apart, is shown inthe accompanying illustration. When it is necessary to grindthe side of the teeth of milling cutters, the distance between thefaces is changed, and in order to maintain the proper widthen the piece being machined, compensation must be made in some way for theamount ground fromthe cutter. This issometimes a c c o m -plished by carryingin stock an assortedlot of solid spacingcollars of varyinglengths, and if theexact size cannot befound, provision mustbe made for grindingor shimming up one that is. An Adjustable bpacing Collar for IVlillingCutters off a solid collar that is too Iontoo short. The collar illustrated, which is sold by Scully-Jones & Co.,Railway Exchange, Chicago, is so designed that the thicknesscan be changed to a total of .024 in. This total is divided intotwelve spaces of .002 in. each. The adjustment is quickly madeand after each adjusttnent it is, in effect, a solid collar. Reference to the illustration will show the construction whichpermits this varying of lengths. In addition to its use as aspacing for milling cutters it can also be used for other purposeswhere solidity and adjustability are desired.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
