Writing tablet

Details Writing tablet Writing tablet

1978-09-18

1980-05-20

McCall, James T.

Chairs and seats

With table, desk, or easel

Tablet-arm type

108142, A47B 3900, A47B 1100

Patent

active

042036240

ABSTRACT:
A writing tablet for a chair arm is mounted by a pivot swivel block to the arm for pivotal movement about a first axis. A tablet panel support is mounted to the pivotal swivel block for pivotal movement about a second axis perpendicular to the first axis. Semicircular slots are included in the pivot swivel block and tablet panel support in registry with each other, and a ball rides in the slots to limit the movement of the tablet panel support about the second axis.

REFERENCES:
patent: 1547849 (1925-07-01), Boogaard et al.
patent: 1781015 (1930-11-01), Keipp
patent: 2650648 (1953-09-01), Nordmark et al.
patent: 3197254 (1965-07-01), Hendrickson
patent: 3292972 (1966-12-01), Krueger
patent: 3547488 (1970-12-01), Barnes
patent: 3598442 (1971-08-01), Miller

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