Method and apparatus for correcting deflection of a movable memb

Details Method and apparatus for correcting deflection of a movable memb Method and apparatus for correcting deflection of a movable memb

1989-07-24

1991-10-01

Smith, Jerry

Boots, shoes, and leggings

36447435, 36447431, G06F 1546

Patent

active

050539736

ABSTRACT:
In an apparatus for correcting deflection produced in a construction due to the weight of the construction or movement of a movable member supported by the construction, a condition data representing the deflection associated with the moved position of the movable member is stored in a memory section of a correction controller. The movement of the movable member is detected by a position detector and a position signal is generated from the position detector. A command signal is supplied to a calculator and the position signal is received in the calculator synchronized with the command signal. The condition data is accessed by the calculator with the received position signal and is processed into a correction data. A correction data is supplied to a proportional control electromagnetic valve and a hydraulic cylinder for applying a force onto the construction is regulated by the valve to correct the deflection of the construction.

REFERENCES:
patent: 3555254 (1971-01-01), Gerber
patent: 4471443 (1984-09-01), Kinoshita et al.
patent: 4502108 (1985-02-01), Nozawa et al.
patent: 4514813 (1985-04-01), Nozawa et al.
patent: 4587622 (1986-05-01), Herzog
patent: 4775926 (1988-10-01), Hasesawa et al.
patent: 4819195 (1989-04-01), Bell et al.
patent: 4939678 (1990-07-01), Beckwith, Jr.

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