Adjustable locking mechanism for tilting tables and the like

Details Adjustable locking mechanism for tilting tables and the like Adjustable locking mechanism for tilting tables and the like

1978-09-22

1981-02-03

Frazier, Roy D.

Horizontally supported planar surfaces

Tiltable surfaces

Pivotally adjustable about horizontal axis

297373, A47F 512

Patent

active

042481619

ABSTRACT:
Two sets of positive-locking tilt adjustment mechanisms are mounted between a drafting board and a supporting frame therefore. Both sets of locking mechanisms include identical left and right halves having crown gear portions positioned thereon for aligned meshing engagement with each other. Further, the opposing halves of the opposing sets of mechanisms are also aligned. Each half is manually mountable by hand to either the board or frame and a bolt and hand tightenable nut maintain the sets of mechanisms, the board, and the frame in adjustable alignment. The board and frame are made such that loosening a nut on each mechanism automatically separates the halves of each set thereof for providing interference free tilting adjustment of the drafting board on the frame.

REFERENCES:
patent: 3206268 (1965-09-01), Grow et al.
patent: 3698328 (1972-10-01), Weir
patent: 3756166 (1973-09-01), Piretti

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