Geometrical instruments – Straightedge type – Combined with level
Patent
1985-02-26
1986-08-26
Martin, Jr., William D.
Geometrical instruments
Straightedge type
Combined with level
33499, 33562, G01C 900
Patent
active
046074384
ABSTRACT:
In a wall stud framing tool, an elongated rail is provided with parallel spaced-apart walls joined by a measuring indicia scored angular surface. A plurality of stud position locating tongues are pivotally connected by one end portion between the rail walls. An integral spring member, on the innerconnected end portion of each stud locating tongue, maintains the tongues in right angular relation with respect to the rail when the tongues are in an erected position and maintain the tongues in collapsed or folded position between the rail walls when in a second position.
REFERENCES:
patent: 512199 (1894-01-01), Love
patent: 596818 (1898-01-01), Moore
patent: 733570 (1903-07-01), Victor
patent: 1142418 (1915-06-01), Hamalainen
patent: 3169320 (1965-02-01), Currie
patent: 4212108 (1980-07-01), Jackson
Martin, Jr. William D.
Rhea Robert K.
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