. 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. grooves on the sides of the wheel, at 195 feet diameter. It is only in-tended to use one at a time. The motive power is taken from two 50-horse-power dynamos, and of these one will be sufficient, and the otherin reserve. There are 40 cars, each 25 feet long, and 8 pla
. 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. grooves on the sides of the wheel, at 195 feet diameter. It is only in-tended to use one at a time. The motive power is taken from two 50-horse-power dynamos, and of these one will be sufficient, and the otherin reserve. There are 40 cars, each 25 feet long, and 8 platforms forloading at once as many cars. 865. End view, showing the three balconies and their Hfts. 866. MOVING PLAT-FORM for boarding rail-way cars. The stepped plat-form railway will be very of accidents are lim-ited. The fall of a person pass-ing from one platform to an-other would not be attendedwith serious results, as the dif-ference between the speed oftwo platforms is equal to theaverage speed of a ^^^^^ ENGINEERING AND CONSTRUCTION, ETC. T -7 r* . 867. TRAVELING STAIRWAY OR RAMP. A dynamo and atransmission drive the upper drum and guards at a mean speed of twenty-inches per second. The system com-prises an endlessweb formed of barsof wood which areprovided with rollersthat are formed ofa material calledhemacite andthat run upon returnins; halfis suspended from arail lodged in thelower chord of theprincipal arrangement ofchains with detach-able links permitsof doing away withstretchers. The jointed web is actuated by a chain of which each link cor-responds to one of the bars of wood. This passes at the upper partover an indented wheel actuated by the electric motor with the inter-position of a shaft with a ratchet to prevent any return in an oppositedirection. The jointed bars are provided with rubber projections for the purposeof giving the feet a firm hold. These projections, which are arrangedin longitudinal bands, make
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
