. Electric railway journal . anged wheels, which runon the rail 6 ft. apart at centers, and a third wheel whichhas no flange. This enables the machine to be moved moreeasily from the track and to run around curves with butlittle friction. The 4-hp, 1500 motor used for the drive is fur-nished with a sleeved shaft bearing which carries a toothedquadrant. One end of the double cantilever arm boltedto the quadrant carries the grinding wheel and the otherend a counterweight. The arm is swung into and heldfirmly in any required position by the rotation of a hand-wheel attached to a worm whic
. Electric railway journal . anged wheels, which runon the rail 6 ft. apart at centers, and a third wheel whichhas no flange. This enables the machine to be moved moreeasily from the track and to run around curves with butlittle friction. The 4-hp, 1500 motor used for the drive is fur-nished with a sleeved shaft bearing which carries a toothedquadrant. One end of the double cantilever arm boltedto the quadrant carries the grinding wheel and the otherend a counterweight. The arm is swung into and heldfirmly in any required position by the rotation of a hand-wheel attached to a worm which engages with the teethin the quadrant. The lowest end of the arm carries aspindle having a sprocket wheel at its inner end and agrinding disk at its outer end. This disk is driven atmotor speed by means of an adjustable endless silent-chain drive between the sprocket wheel and a similar wheelon the armature shaft. The 14-in. diameter grinding disk has a lead-bushed cen-ter and is clamped between thick rubber washers by two. Side View of Portable Rail Grinder with Wheel in Positionfor Grinding steel flanges. The inner flange is fixed to the spindle, butthe outer flange is detachable so that disks are easily ex-changed. Smaller disks are used for deepening grooves inthe rails and other special purposes. Cutters are so in-stalled that the disk can be trued up while running in place. The drilling attachment enables holes to be drilled andreamed in rails, switches, etc., either when in positionin the track or when lying in the yard. Holes may alsobe readily drilled in trucks, etc., without removing or dis-mantling them. Bevel gearing permits a drill speed of775 While the motor is running one operator moves the truckto and fro along the rails a distance of 6 ft. to 9 ft. at aspeed not exceeding 6 ft. to 8 ft. per minute. The secondoperator walks by the side of the machine adjusting the feeduntil the surface of the rail reaches the required is not necessary to po
Size: 2398px × 1042px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
