Platform 1, on which the item being weighed is placed, rests on piston 2. Piston 2 rests on steel ball 3 of the hydraulic capsule. The pressure of the ball is transmitted by member 4 to diaphragm 5 which compresses the liquid. The pressure of the liquid, proportional to the weight of the item, is measured by a pressure gauge. The scale is switched on and off by turning shaft A, having eccentric shoulders a.
$4070$EHP,M$