Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
Patent
1986-04-25
1987-03-24
Haroian, Harry N.
Geometrical instruments
Straightedge type
Plural straightedges nonadjustably fixed at right angles
33562, B43L 1320
Patent
active
046514341
ABSTRACT:
A carpenter's template useful particularly for residential framing construction has an L-shaped crosssection formed by a faceplate having a width of about 4" and a flange having a width of about 15/8". The faceplate has three series of slots for marking rafter cuts for common rafters, hip and valley rafters, and jack rafters, respectively. The flange is configured at its ends into angled edges useful for cheek cuts and dub cuts. The faceplate is marked with indicia related to roof pitch to permit the carpenter to select the appropriate slots.
REFERENCES:
patent: 855987 (1907-06-01), Schlageter
patent: 1125010 (1915-01-01), Doner
patent: 1135259 (1915-04-01), Cokely
patent: 2204927 (1940-06-01), Cramer
patent: 2713203 (1955-07-01), Gottlieb
patent: 3010209 (1961-11-01), McKinley
Haroian Harry N.
Quirk Edward J.
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