Height adjustable table

Details Height adjustable table Height adjustable table

1978-06-19

1979-05-29

McCall, James T.

Horizontally supported planar surfaces

Biased surface

108 2, 108 37, 108144, 2481231, 248599, 2481621, 267165, A47B 902, F16M 1100

Patent

active

041563913

ABSTRACT:
The top of a table such as a drafting table which may be adjustable in its elevation, is counterbalanced by counterbalancing elements exerting an approximately constant balancing force. The counterbalancing elements comprise at least one leaf spring forming a bow inserted between the table top and a counter abutment below the table top so that the leaf spring or springs is biassed to form said bow, whereby the load on the bow has a tendency to cause a lateral flexure of the bow. The arrangement is such, that the downwardly directed force component caused by the weight of the table top and the pressure exerted by the bent leaf spring or springs, are directed opposite to each other.

REFERENCES:
patent: 2828801 (1958-04-01), Papst
patent: 2885067 (1959-05-01), Morris
patent: 2992792 (1961-07-01), Van Der Hoek
patent: 3123829 (1964-03-01), Bronson
patent: 3131709 (1964-05-01), Richards
patent: 3278153 (1966-10-01), Dallas
patent: 3283731 (1966-11-01), Maslow
patent: 3304892 (1967-02-01), Begtson

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