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US 4,221,530 AGranted
Force-moment compensating apparatus
OwnerJames M. Williams, IV, James M. Williams, Vinventors
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Abstract
A force-moment compensating apparatus, particularly adapted for use with load handling apparatus, including stabilizing means, sensing means for sensing a change in value of a force-moment acting on the apparatus, and actuator means responsive to the sensing means for restoring the force-moments acting on the apparatus to a stable condition.
Claims9
In a mobile load-handling apparatus having a frame subjected to changes in moments of force, a force-moment compensating apparatus comprising:
- (a) motive means for moving said frame,
- (b) speed-changing means for varying the speed of said motive means, in response to an electrical output signal,
- (c) a translatory sensor for sensing the translatory position of a load on said frame handled by said apparatus, and for producing a translatory signal commensurate with the sensed translatory position of said load,
- (d) an angular sensor for sensing the angular position of said load, and for producing an angular signal commensurate with the sensed angular position of said load, and
- (e) an electrical speed control circuit receiving and integrating said translatory signal and said angular signal to produce an output signal to actuate said speed-change means to vary the speed of said motive means commensurate with the value of said output signal.
2 more elements
Dependencies are inferred from the claim text.