Radial arm saw speed control cylinder

A device for use with a radial arm saw comprising a hydraulic cylinder adapted to be mounted on the radial arm saw, said cylinder having a piston mounted on one end of a hollow push tube therein, said tube having a plug valve therein, with connecting slidable metering rod extending there through, metering ports spaced axially around said tube providing fluid communication from one side of the piston to the other side, said metering rod being adapted for connection to an operating handle on a carriage of said saw, and a spring biasing said handle to urge said rod to move said valve to a closed position whereby a volume of fluid passing through said valve is varied in response to movement of the handle, a check valve for return fluid flow is mounted on said piston.