Drafting board base

Details Drafting board base Drafting board base

1978-04-28

1980-02-12

Schultz, William H.

Supports

Stand

Standard type

248161, F16M 1100

Patent

active

041880072

ABSTRACT:
The present base for a drawing or drafting board or the like supports the board so that the latter is adjustable in the three directions of space. After each adjustment the board may be locked in the adjusted position by a respective safety or locking device. These safety or locking devices are so arranged and constructed that a yielding is provided in response to the reaching of a load limit applied to the drawing or drafting board whereby damage to the board and its supporting structure is avoided.

REFERENCES:
patent: 669389 (1901-03-01), Gundry
patent: 1186992 (1916-06-01), Jargstorf
patent: 1919114 (1933-07-01), Ley
patent: 2567593 (1951-09-01), Bemis
patent: 2851126 (1958-09-01), Ward
patent: 2947556 (1960-08-01), Wenger
patent: 3521341 (1970-07-01), Hornlein et al.
patent: 3695700 (1972-10-01), Flach
patent: 3873054 (1975-03-01), McKee et al.

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