Milking Machine (Patent No: 207881)

Inventor: Maes, Robert

Location: Calgary

Comments: N/A

Description:
WHAT I CLAIM IS:
1. In a milking machine, in combination with a teat cup and vacuum extracting device a pulsator consisting of a cylindrical chamber or cylinder provided with a solid ended piston subject to atmospheric pressure and retained by a coil spring placed around the stem or piston rod, a cam secured upon the piston rod in relation to a hollow slide valve, a hollow valve slidable within the said chamber and adapted to open and close ports in the cylinder shell, a coil spring interiorly fitted to the said slide adapted to expand when the cam engages it and to travel along the said cam as the result of contraction of the said coil spring carrying the slide in a direction opposite to that of the piston all substantially as described.