Method of and apparatus for synchronizing a plurality of fluid-o

Details Method of and apparatus for synchronizing a plurality of fluid-o Method of and apparatus for synchronizing a plurality of fluid-o

1974-05-13

1976-07-13

Maslousky, Paul E.

Motors: expansible chamber type

Relatively movable working members with one having motive...

Synchronizing in response to sensed difference in positions

91361, F01B 2504, F15B 1122

Patent

active

039687309

ABSTRACT:
A plurality of fluid-operated rams, e.g., for positioning the rolls of a sheet-metal bending machine, are each actuated by a respective servovalve and are each connected to a respective potentiometer whose output resistance varies in accordance with the position of the ram. The rams are grouped in pairs and one potentiometer of each pair is energized with positive voltage, the other with negative voltage so that a combined signal can be produced indicating the relative positions of the two rams of the pair. The combined signal representing the position deviation is fed to two separate amplifiers where it is combined with voltages of opposite polarity and then fed to the servovalves of the pair of rams. Thus the one servovalve is closed partially if its ram advances on the other ram. Similarly a plurality of such rams can be interconnected with all but at most two rams from two different pairs so that all ram positions will be equalized.

REFERENCES:
patent: 2367580 (1945-01-01), Hines
patent: 2378497 (1945-06-01), Phillips
patent: 3377924 (1968-04-01), Spencer et al.
patent: 3505929 (1970-04-01), Coppola et al.

Affiliated with

Also associated with

Rating

Method of and apparatus for synchronizing a plurality of fluid-o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for synchronizing a plurality of fluid-o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for synchronizing a plurality of fluid-o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1734244