LITTLE KNOWN FACTS ABOUT HYDRAULIC MOTORS.

So, for purposes such as a crane or winch with suspended load, there is always a need for the brake or maybe a locking machine.One of the very first of these was Arthur Rigg's patent motor of 1886. This utilised a double eccentric system, as used on variable stroke electricity presses, to control the stroke length of A 3 cylinder radial motor.[2] A