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381. The Hydraulic Accumulator
The wonderful pressures used in hydraulic devices are provided from intensifiers on the principle of that demonstrated with all the forging press inside a prior chapter, or from accumulators. Drinking water in an accumulator cylinder is subjected to a pressure of at the least many hundred kilos per square inch by means of weights loaded on the cylinder as proven in Fig. 232. The description and operation of your accumulator here proven are presented as follows, viz.: A major base B rests on the concrete groundwork and supports the accumulator. This base carries a vertical steel rod R,
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Fig. 232. - Hydraulic Accumulator.
Water is pressured by hydraulic pumps (steam-driven pumps with quite tiny drinking water plungers) with the pipe G and also the opening H in to the space W in between the rod and the cylinder. The unbalanced pressure around the stop from the bronze sleeve D is elevated from the pumps until finally it can be enough to lift the cylinder and also the weights which it carries. These annular cast-iron weights determine the diploma of strain inside the cylinder. If less strain is sought after, one or even more from the weights is lifted and suspended over the accumulator.
This strain is utilized by transmitting it towards the controlling valves of a hydraulic press through a pipe related at K.
Fig. 233. - Flange-Heating Furnace.
Suitable automated controls are rigged within the accumulator to stop the pumps once the cylinder has elevated its complete peak,
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