Rotary cam brake

Details Rotary cam brake Rotary cam brake

1981-05-14

1984-02-14

Schultz, William H.

Supports

Stand

Understructure

248454, 108 6, A47F 512

Patent

active

044311532

ABSTRACT:
Apparatus for locking a drafting board in a desired attitude of angular adjustment enables adjustment of the drafting board through a full ninety degree movement. Force is selectively applied by a control system to interdigitating brake leaves to hold the drafting board surface from rotating once the desired angle has been achieved, and is selectively released to enable angular adjustment. Provision is made to adjust the control system of the apparatus responsive to the particular geometry of the drafting table.

REFERENCES:
patent: 1443093 (1923-01-01), Sanderson
patent: 1613541 (1927-01-01), Smith
patent: 2197359 (1940-04-01), Cook et al.
patent: 2622951 (1952-12-01), Sautereau
patent: 3140559 (1964-07-01), Grow et al.
patent: 3206268 (1965-09-01), Grow et al.
patent: 3506097 (1970-04-01), Hollnagel
patent: 3638584 (1972-02-01), Cisler
patent: 3908561 (1975-09-01), Cowley
patent: 4278032 (1981-07-01), Kritske

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