. 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. shafts, a h, which arecarried up at an angle of about 45 degrees andconnected with a differential motion controllingthe works and hands of a larger dial placedabove the two others. This peculiar motionis constructed of a light shaft, h, on which isfastened at right an
. 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. shafts, a h, which arecarried up at an angle of about 45 degrees andconnected with a differential motion controllingthe works and hands of a larger dial placedabove the two others. This peculiar motionis constructed of a light shaft, h, on which isfastened at right angles a crosspiece, on one end of which is mounted thewheel, g. On the shaft, //, and engaging with the wheel, g, are two larger wheels, e /, of 90 teeth each;these wheels are cut on both sides,as shown. Engaging with thesewheels are wheels of 60 teeth each,fastened on the upper ends of theshafts a b. It will be seen thatboth clocks are directly connectedwith the differential motion, andalso that as long as the wheels, e /,which turn in opposite directions,are driven at the same speed,the wheel, g, will simply roll on itspivot without altering .its positionor that of the shaft h. But as-suming that the wheel, /, revolvestwice around while the wheel, e,revolves once, then the wheel, g,will necessarily follow /, and in pro-. HOROLOGICAL, TIME DEVICES, ETC. 267 portion to the speed of the two wheels, e /; but as these wheels move inopposite directions, it consequently follows that one-half the difference in the rates is lost,or instead of mak-ing a completer e V o 1 u tion—thedifference betweenI and 2—i t h a sonly recorded halfa revolution. Now, to com-pensate for thiserror—i n otherwords, to regainthe half revolutionlost—the wheelson the upper endsof the shafts, a b,have 60 teeth each,and the pinions atthe lower endshave 30 teeth each;and as the drivingwheels, c d, having90 teeth each, areconnected through
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Keywords: ., bookauthorhiscoxga, bookcentury1900, bookdecade1910, bookyear1910
