Counterbalancing apparatus for use in an optical instrument

Details Counterbalancing apparatus for use in an optical instrument Counterbalancing apparatus for use in an optical instrument

1985-05-17

1987-08-11

Britts, Ramon S.

Supports

Resilient support

Constant thrust

2481231, 2481621, 248332, F16M 1300, G02B 2132

Patent

active

046856480

ABSTRACT:
An apparatus for counterbalancing the weight of the movable member in a precision instrument includes a resilient member which is coupled, by way of a non-elastic member, over an eccentric surface of a rotatable member to the movable member. Rotation of the eccentric member causes the resilient member to deform an amount proportional to the eccentricity of the member and a nearly constant counterbalancing force may be applied to the movable member.

REFERENCES:
patent: 2168209 (1939-08-01), Haupt
patent: 2901202 (1959-08-01), Stava et al.
patent: 2924411 (1960-02-01), Rouverol
patent: 3575368 (1971-04-01), Thomas et al.
patent: 3895770 (1975-07-01), Yoshida et al.
patent: 4351245 (1982-09-01), Laporte

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