accumulator

The bridge is worked by hydraulic power, an accumulator with a load of 34 tons supplying pressure water at 630 lb per sq. in.

Fig. 176 shows a diagrammatic way the scheme of a system of accumulator machinery.

Sometimes an accumulator is loaded by water or steam pressure instead of by a dead weight.

At R is one of the pressure engines or jiggers, worked from the accumulator, discharging the water after use into the tank T.

When a very great pressure is required a differential accumulator (fig. 177) is convenient.