. American engineer and railroad journal . t all of the weight is taken from the working chisel ram has a 17 in. vertical movement and a 16 in. trans-verse movement across the carriage, and will mortise 6 in. is imparted by a train of gearing and reverse frictionpulleys, all placed outside for ready inspection and cutting speed of the chisel is 13 ft. per minute, with a returnat double this speed. The table common to both these machines is of steel beamconstruction, of very rigid character, which will clamp material20 in. wide by 16 in. thick. It is prov
. American engineer and railroad journal . t all of the weight is taken from the working chisel ram has a 17 in. vertical movement and a 16 in. trans-verse movement across the carriage, and will mortise 6 in. is imparted by a train of gearing and reverse frictionpulleys, all placed outside for ready inspection and cutting speed of the chisel is 13 ft. per minute, with a returnat double this speed. The table common to both these machines is of steel beamconstruction, of very rigid character, which will clamp material20 in. wide by 16 in. thick. It is provided with quick actingeccentric clamps and has both a power and hand feed. The Bentel & Margedant Co., Hamilton, 0., in addition to thiscombined mortising and boring machine, also have combinations,similarly arranged, of mortising and gaining machines and ofgaining and boring machines. THE STURTEVANT DUST BLOWING SET. For blowing dirt and dust out from machinery and fromaround motors, switchboards, shelving, and other places difficult. HAMILTON COMBINED HOLLOW CHISEL, advantage of these bearings is that all parts are should any part of the bearing become mislaid or acci-dentally broken it may be easily replaced and the expense of acomplete new box is saved. This interchangeability is also anadvantage where it becomes necessary for any reason to changethe bearings of a shaft. If the load is too heavy for a singlecage all that need be ordered to provide for the increase isanother single cage and a suitable box. mortising and boring machine. or dangerous of access, the B. F. Sturtevant Company, HydePark, Mass., has designed a new portable dust blowing set. Thedevice is electrically driven and weighs only 55 lbs. It isadapted for attachment to lighting sockets, so that the range ofits usefulness is very broad. While the blower does not give as high a pressure as the largecompressed air systems, the larger volume of air accomplishesin most cases the same purpose
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
