Desk top work support device

Details Desk top work support device Desk top work support device

1976-09-09

1977-08-09

Hafer, Robert A.

Supports

Easel; book, copy or music score holder

Knockdown or collapsible

248454, A47G 124

Patent

active

040405923

ABSTRACT:
A desk top work support device having a primary work support member pivotally mounted in an opening in a desk top. A pair of link arms mounted on the primary work support member rotatably support a secondary work support member, and are pivotable to position the secondary work support member in a forward position over the primary work surface and a rearward position to the rear of the primary work surface. A rotating mechanism causes the secondary work support member to rotate with respect to the link arm when the link arm is pivoted. A drive train is provided for rotating the rotating mechanism and the secondary work support bar independently of movement of the link arms, and a second drive train is provided for pivoting the link arms.

REFERENCES:
patent: 928614 (1909-07-01), Mohr
patent: 1301406 (1919-04-01), Dierks
patent: 1420439 (1922-06-01), Moore
patent: 2252215 (1941-08-01), Stearns
patent: 2640748 (1953-06-01), Holmberg
patent: 3875872 (1975-04-01), Kayner
patent: 3980266 (1976-09-01), Jones

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