Method and apparatus for assisting in hanging framed pictures an

Details Method and apparatus for assisting in hanging framed pictures an Method and apparatus for assisting in hanging framed pictures an

1997-09-26

1999-08-10

Fulton, Christopher W.

Geometrical instruments

Straightedge type

Combined with level

33613, 33644, G01B 514, G01B 304

Patent

active

059339730

ABSTRACT:
This disclosure is directed to a elongate ruler having a row of calibration marks thereon, preferably a second row reading from the opposite end, and a set of nail holes at spaced distances therein. The nail holes are either on the centerline or along one edge of the ruler. The ruler extends through a housing engaging the housing at a slot through the housing. There is an alignment surface in the housing to assure alignment of the housing with respect to the ruler. The housing supports a first bubble level responsive to the horizontal, and a second bubble level at right angles to enable the ruler and housing to be positioned vertically. The housing and ruler enable ruler movement while making measurements along the wall.

REFERENCES:
patent: 1740597 (1929-12-01), Hoyer
patent: 1772925 (1930-08-01), Wernicke
patent: 2816366 (1957-12-01), Barlow
patent: 3371423 (1968-03-01), Paul
patent: 4241510 (1980-12-01), Radecki
patent: 4443949 (1984-04-01), Newton
patent: 5131164 (1992-07-01), Miller

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