. American engineer and railroad journal . th a ratio of 6J4 to 1. The back gears are thrown in andout by the lever at the back of the column which is easily oper-ated from the side of the machine. The driving gears are ofphosphor bronze. The shaft bearings are provided with cast iron bushings, whichare pressed in, although they may be readily removed and re-placed, if necessary. The shaft bearings are fitted with ringoilers, the ring carrying the oil from an oil well to the shaft, asit revolves, thereby affording constant lubrication. The ringsare made of wide strips of brass, thereby having
. American engineer and railroad journal . th a ratio of 6J4 to 1. The back gears are thrown in andout by the lever at the back of the column which is easily oper-ated from the side of the machine. The driving gears are ofphosphor bronze. The shaft bearings are provided with cast iron bushings, whichare pressed in, although they may be readily removed and re-placed, if necessary. The shaft bearings are fitted with ringoilers, the ring carrying the oil from an oil well to the shaft, asit revolves, thereby affording constant lubrication. The ringsare made of wide strips of brass, thereby having a liberal con-tact on the shaft, and distributing the oil more freely. It hasbeen demonstrated that with a round ring the contact on theshaft is so small that comparatively little oil is distributed. The feed plate is of an entirely new design. The feed eccen-tric is pivoted and may be swiveled in any direction. Theholes in the plate are reamed tapered. The stud in the eccentrichas a spring in it, and is also tapered. The tapered pin will. STEPTOE BACK GEARED (RANK SHAPER. thereby take up any wear which may occur in this hole. Theholes are drilled in a circle to keep them as far apart as pos-sible. They are drilled and numbered to agree with the teethin the feed ratchet, thereby making it easy to secure any de-sired feed. The ring which encircles the feed eccentric is split,and fitted with a fibre washer, thereby permitting any wear,which may occur in the ring, to be easily taken up by filingthe washer. There is no opening through the base of the machine in thepocket in which the telescopic screw operates; dirt and moistureare thus prevented from getting in at the bottom. The gradu-ations on the vise base are placed on an angle so that they maybe more easily read by the operator. In fastening the work inthe vise the upper jaw has a tendency to raise as the work istightened. To overcome this the upper jaw- may be firmlyclamped to the lower one by two bolts as shown. RAILROAD CLU
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
