Pressure fluid operated feed drive system for a movable member

Details Pressure fluid operated feed drive system for a movable member Pressure fluid operated feed drive system for a movable member

1976-06-28

1979-02-27

Maslousky, Paul E.

Motors: expansible chamber type

Moving cylinder

Cylinder and piston have relative reciprocation on fixed axis

91533, 91417R, 92146, F01B 1500, F15B 1517, F15B 1116, F15B 1306

Patent

active

041412818

ABSTRACT:
A pressure fluid operated feed drive system for a movable member, and particularly for a slide of a machine tool, the system having a source of fluid pressure feeding a pair of interconnected piston and cylinder units connected between the member and a fixed support. The piston rod side areas of the pistons are arranged in effective opposition and valve means are provided to permit pressure fluid to be supplied selectively to the units to enable the member to be moved alternatively by a force derived from differing piston areas.

REFERENCES:
patent: 3070071 (1962-12-01), Cooper
patent: 3507352 (1970-04-01), Williamson
patent: 3672159 (1972-06-01), Sundin
patent: 3805670 (1974-04-01), Follows, Jr.
patent: 4017110 (1977-04-01), Pease et al.

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