Appletons' cyclopedia für Angewandte Mechanik: Ein Wörterbuch der Maschinenbau und die mechanischen Künste. alve geschlossen. Druck in Spalte 1. Waste-Valveopen. Waste-Valveclosed. 1 2 3 4 5 6 7 8 9 10 n 12 13 14 104070100100120150 63.6101.2124.8101.2143.6157.7129.1 21.330.648.368.863.675.39 S. 9 34.1 51. S 61.268 .3 0.273 0.3350.3020.3870.6750.4430.4780.766 0.3610.3830.529 69696369696969 106116130168134142166 167206203207205210199 250 235237241 32340596) 7399 1329211210 S99 110144152133151152144 niedrigen Druck. HighPressure. Die Manipulation dieses iujector, die aber nicht so einfach wie die des 1876

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Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . alve closed. Pressure in Column 1. Waste-Valveopen. Waste-Valveclosed. 1 2 3 4 5 6 7 8 9 10 n 12 13 14 104070100100120150 63.6101.2124.8101.2143.6157.7129.1 21.330.648.368.863.675.39S.9 34.1 51.S61.268.3 0.3350.3020.3870.6750.4430.4780.766 0.273 0.3610.3830.529 69696369696969 106116130168134142166 167206203207205210199 250 235237241 32340596)7399 1329211210S99 110144152133151152144 Low Pressure. HighPressure. The manipulation of this iujector, although not as simple as that of the 1876 instrument, presents no especial difficulty. It is necessary to open the water-supply valve sufficiently to deliverabout the maximum amount of water that the injector can take at the given pressure, and, the waste-valve being open, as soon as the water escapes freely through the waste-orifice, to open the steam-valve slightly, until the jet is established, and then to open the steam-valve wide, by a quick motion.A special valve is provided, as illustrated in Fig. 2427, for facilitating this manipulation.. Another important difference between the injector with fixed nozzles and the self-adjusting injectoris illustrated by comparing the maximum delivery of the two injectors, at different steam-pressures, asrecorded in column 2 of Tables I. and IV. respectively. It will be seen that the maximum deliveryof the self-adjusting injector increases continually with increase of steam-pressure, while the fixed-nozzle injector has a maximum delivery at a steam-pressure depending upon the proportions of the 168 INJECTORS. combining-tubc, which is greater than the maximum delivery for any other steam-pressure, citherhigher or lower. Thus, it appears from Table IV. that, using a combining-tube adapted for a pres-sure of 70 lbs. per sq. in., the greatest amount of water is delivered by the injector at this pressure;and that on replacing this combining-tube by one adapted to a steam-pressure of

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• bookauthorbenjaminpark18491922
• bookcentury1800
• bookdecade1880