. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. fast bydropping into the notch. 625. Plan of the revolving gear box and handle, F. 240 GEARING AND GEAR MOTION, ETC. 626. VARIABLE SPEED GEAR, for automobiles. German gear is of the permanent mesh type, and is adapted to give four changes of speed and reverse
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. fast bydropping into the notch. 625. Plan of the revolving gear box and handle, F. 240 GEARING AND GEAR MOTION, ETC. 626. VARIABLE SPEED GEAR, for automobiles. German gear is of the permanent mesh type, and is adapted to give four changes of speed and reverse mo--^^ \\ I ni \Dr\\ti!IS^ tion. The changes are effected noiselessly and entirely withoutshock by means of a system oflevers actuating friction cones,motion to the levers being trans-mitted by a series of groovedcams cut from the solid on anauxiliary shaft. The variouschanges of speed, as well as thereverse motion, are controlled by one lever or wheel which actuates thecam shaft. All the gears are cut from sohd steel forgings, and are in-closed in an oil-containing aluminum case. It will be noticed from thedrawing that the shaft on which the driven pinions are mounted alsocarries the differential gear, the shaft being designed to transmit thepower by chains to the rear road wheels of the car to which the gearis 627. DRIVING GEAR FOR A LATHE, change speed gear ontwo vertical shafts beneath the lathe head. The method of connecting motor and spindle is clearly shown. Thearmature shaft is fitted with a bevel pin-ion which drives through bevel reversinggears and a vertical shaft a cone of fivegears which mesh with five loose gears onanother vertical shaft, the latter beingconnected by bevel gears with the lathespindle. By means of a sliding key, oper-ated by a lever at the front of the head,any one of the loose gears may be in-stantly connected to and made to drivethe shaft; thus the speed of the spindleis very readily changed. The spindle isback-geared in the usual manne
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
