Adjustable typewriter platform mechanism

Details Adjustable typewriter platform mechanism Adjustable typewriter platform mechanism

1974-12-06

1976-02-17

Nunberg, Casmir A.

Supports

Instrument in panel

108147, 312 21, 312208, F16F 1501, F16M 700

Patent

active

039387666

ABSTRACT:
An adjustable typewriter platform mechanism is provided for use with a desk of the type having a typewriter platform recess in the desk top. The typewriter platform mechanism includes a U-shaped base plate which is horizontally mounted at a spaced distance below the desk top. Four vertically disposed jack-screws are rotatably journalled between the base plate and the desk top for nontranslational rotation; and means is provided for simultaneously rotating all of the jack-screws.
A pair of parallel spaced and horizontally disposed support-bars are mounted to respective ones of the jack-screws to receive lifting motion therefrom. Limited relative horizontal movement between the support-bars and the jack-screws is permitted in two horizontal and orthogonally intersecting axes; and means is provided for vertically guiding the support-bars in one vertical plane to minimize relative movement between the support-bars and the jack-screws in one of the aforesaid horizontal axes.

REFERENCES:
patent: 2831746 (1958-04-01), Hartnett
patent: 2857225 (1958-10-01), Dombek
patent: 2991030 (1961-07-01), Herbolsheimer

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