Apparatus for supporting a body in a desired angular position

Details Apparatus for supporting a body in a desired angular position Apparatus for supporting a body in a desired angular position

1978-07-05

1980-09-16

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318649, B64C 1702

Patent

active

042232597

ABSTRACT:
Apparatus for supporting a body on a carrier in a desired angular position while the carrier is mounted on a moving base, such as a ship, includes an electrically operated drive for angularly moving the carrier relative to the base about a normally horizontally extending axis. The control device for controlling the drive includes a first signal generator which senses the rate of angular movement of the carrier in a plane perpendicular to the afore-mentioned axis and generates a first signal indicative of the sensed rate. A second signal generator includes a mercury switch and generates a second, constant, D.C. signal indicative of the absence or presence of a predetermined angular position of the mercury switch in plane perpendicular to the axis. A circuit connected to the signal generators and the drive transmits to the drive an electrical operating signal in response to the first and second signals and thereby causes the mercury switch to be moved by the drive into its predetermined angular position.

REFERENCES:
patent: 2883594 (1959-04-01), Alberts
patent: 3271650 (1966-09-01), Riddle
patent: 3534327 (1970-10-01), Lukso
patent: 3851238 (1974-11-01), Fletcher
patent: 3988659 (1976-10-01), Ambrosini

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