Adjustable legs for desk and the like

Details Adjustable legs for desk and the like Adjustable legs for desk and the like

1991-05-06

1992-04-28

Aschenbrenner, Peter A.

Horizontally supported planar surfaces

Vertically adjustable

2481885, 248157, A47B 900

Patent

active

051077752

ABSTRACT:
A school desk has legs adapted to be lengthened for raising the desk. The legs are provided with a sleeve adapted to fittingly slide on the legs. The legs have a transversal perforation, and the sleeves have a set of vertically disposed holes. A screw and nut combination is used to lock the sleeves on the legs at selected vertical positions. The sleeves are vertically grooved to facilitate their sliding action and to allow the screw and nut combination to positively lock the sleeves on the legs.

REFERENCES:
patent: 761468 (1904-05-01), Ford
patent: 1947801 (1934-02-01), Russell
patent: 2585111 (1952-02-01), Grauer
patent: 2586724 (1952-02-01), Sannebeck
patent: 2831739 (1958-04-01), Fryckholm
patent: 3229790 (1966-01-01), Shayne
patent: 3356327 (1967-12-01), Schreyer et al.
patent: 3523702 (1970-08-01), Unti et al.
patent: 3595180 (1971-07-01), Swoyer

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