. Proceedings of the annual convention . onsists of two grinding wheels driven by an electric motor or gasoline fixtures are provided by which a flat beaded bit can be dressed to the propercutting angle. Other special holders and arms can also be supplied for dressing othertypes of bits. When driven electrically, the machine is equipped with a 1-hp, 3450-rpm,60-cycle, single-phase 115/230-v motor. Thus equipped, the machine weighs 200 lb,and is 21 in high, 37 in long and 22 in wide. Rail Drill Bit-Sharpener Attachment An attachment for sharpening flat-beaded rail drill bits has be
. Proceedings of the annual convention . onsists of two grinding wheels driven by an electric motor or gasoline fixtures are provided by which a flat beaded bit can be dressed to the propercutting angle. Other special holders and arms can also be supplied for dressing othertypes of bits. When driven electrically, the machine is equipped with a 1-hp, 3450-rpm,60-cycle, single-phase 115/230-v motor. Thus equipped, the machine weighs 200 lb,and is 21 in high, 37 in long and 22 in wide. Rail Drill Bit-Sharpener Attachment An attachment for sharpening flat-beaded rail drill bits has been designed for usewith a bit grinder. This device is said to fulfill all the requirements for obtainingperfectly sharpened bits. Rail Lifter—Hydraulic During the year one manufacturer announced a hydraulic rail lifter for removingand inserting tie plates. The actual lifting mechanism of this machine is incorporatedin a semi-enclosed beam, mounted on pantograph arms. These arms are spring counter- Maintenance of Way Work Equipment 657. Fig. 6—High-pressure water pump driven by chain-saw engine. balanced, so that the lifting beam can be raised or lowered with minimum effort. Mountedon the beam are two single-acting hydraulic rams, a control valve, a rail-clamp lever,and rail clamps. The linkage for these clamps is such that the greater the pull, thetighter they grip the rail. The supporting frame or chassis is of welded construction,and has four alloy cast-steel rail wheels that turn on sealed-for-life ball bearings. Alsoon this chassis are the engine and direct-driven hydraulic pump, unloading valve, pneu-matic set-off wheels, and self-storing extension lift pipes. In operation, the machine is placed over the tie from which the tie plates are to beremoved. Then the lifting beam is moved down against the rail and the clamp engagedto the rail. Opening the hydraulic valve causes the two rams to push down against thetie. This forces the lifting beam upward, raising the rails. T
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Keywords: ., bookauthoramericanrailwayengine, bookcentury1900, bookdecade1900
