Adjustable support

Details Adjustable support Adjustable support

1987-10-14

1990-04-17

Britts, Ramon S.

Supports

Easel; book, copy or music score holder

Mounted on wall or art device

248451, 248284, 248454, 403 97, 403146, A47B 6500

Patent

active

049173430

ABSTRACT:
An adjustable support has two adjustable support members 6, 11. A spring 17 mounted on pin 8 biases members 6, 11 together so that the peripheral and bevel teeth 7, 405 and 16, 406 engage to lock the members 6, 11 together at a required position. When member 11 is to be moved relative to member 6, lateral movement of member 11 against the bias of spring 17 enables the teeth 7, 405, 16, 406 to be disengaged and member 11 to be rotated to the required position for the article support arm 3.

REFERENCES:
patent: 376593 (1888-01-01), Greenawalt
patent: 502601 (1893-08-01), Anderson et al.
patent: 1028097 (1912-06-01), Colleen
patent: 1354873 (1920-10-01), Bartley et al.
patent: 1899759 (1933-02-01), Kavanaugh
patent: 1932697 (1933-10-01), Jankovic
patent: 2923991 (1960-02-01), Brazee
patent: 4186905 (1980-02-01), Brudy
patent: 4582445 (1986-04-01), Warshawsky

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