Self holding leveling square

Details Self holding leveling square Self holding leveling square

1996-08-27

1998-09-29

Fulton, Christopher W.

Geometrical instruments

Straightedge type

Combined with level

33371, 33354, 33474, B43L 7027, G01C 900

Patent

active

058131256

ABSTRACT:
A hands free square and level which includes a self holding square that has central channels formed by opposing inner and outer walls. The central channels include mounting holes in its outer wall to allow it to be mounted on a work piece via screws. An inner wall, opposing the outer wall, has corresponding screw driver apertures to allow access to the screws by a screwdriver. The central channel also has transverse bolt apertures which allow the square to be face mounted on a work surface by inserting a bolt through a transverse bolt aperture and then into a work surface. A separate detachable level is sized to slidably fit within a central channel. Hands free operation is achieved by attaching the self holding square to a work surface and then inserting the level into a central channel. An alternative embodiment uses one or more levels which are integrally mounted on the square.

REFERENCES:
patent: 686240 (1901-11-01), Whitehill
patent: 733570 (1903-07-01), Victor
patent: 1267484 (1918-04-01), Bridgman
patent: 1620469 (1927-03-01), Kirkhoff
patent: 1787807 (1931-01-01), White
patent: 1963805 (1934-06-01), Radke et al.
patent: 2058330 (1936-10-01), Little
patent: 2553668 (1951-05-01), Morello
patent: 3456353 (1969-07-01), Iams

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