. 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. stop is adashpot, which consists of a cylinderinto which the piston P fits closely. On this end of the shaft iscut a square-threaded screw, S, passing through a nut fastened in thecenter of the piston, P, so that as the shaft revolves, by means of this screwthe piston
. 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. stop is adashpot, which consists of a cylinderinto which the piston P fits closely. On this end of the shaft iscut a square-threaded screw, S, passing through a nut fastened in thecenter of the piston, P, so that as the shaft revolves, by means of this screwthe piston is carried into the cylinder, and the air behind its inner faceis compressed, thus forming a complete cushion. The speed at whichthe stop acts may be very accurately adjusted by turning the by-passvalve V, which governs the amount of air that is forced through the airpassage H, as the piston P moves in. Below this by-pass valve V, andin the piston P, is located a releasing valve, O, which can be adjustedat will to open by contact against the bottom of the dashpot, when thethrottle valve is near its seat, allowing the compressed air to escapequickly, ajter the piston has cushioned, thus allowing the valve to startagain and take its seat softly, but with sufficient force to close it tightly. ELECTRIC POWER AND DEVICES. 173. 416. SERIES ARC LIGHT-ING CIRCUIT. A multiseriesarc dynamo of the Brush circuits may be combinedor single, controlled by a switch-board and three part armatureand commutator. 417. ROTATING ELECTRIC FUR-NACE. French design. The upper electrodeis swung in two directions and at the same timerevolves to cover the entire bed in the pot, alsodepressed or elevated by the handwheel and upper end of the electrode bar is round, witha toothed rack. The crucible is charged from atrough and emptied by turn over on its carbon lining of the pot is the negativeelectrode, not shown in the engraving. The planshows the worm gear for turning the
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
