Geometrical instruments – Scriber – Curved line
Patent
1976-08-24
1978-03-28
Haroian, Harry N.
Geometrical instruments
Scriber
Curved line
33 1LE, E04G 2118
Patent
active
040807398
ABSTRACT:
A batter board for use in building construction having, in one embodiment, two vertical support members and two horizontal alignment members which together maintain a constant spacing between the support members. One of the alignment members is affixed to the support members at the upper ends thereof, while the second alignment member is movably affixed to the support members in such a manner that it may be selectively positioned along the vertical axes of the support members. A slide member is movably affixed to the second alignment member whereby the slide member may be selectively positioned substantially anywhere within the plane defined by the ends of the support members. The basic structure just described may be advantageously modified by the addition of other support and alignment members.
REFERENCES:
patent: 1609912 (1926-12-01), Mazeau
patent: 1651221 (1927-11-01), O'Maley
patent: 2562597 (1951-07-01), Breuninger
patent: 2790258 (1957-04-01), Freshour
patent: 3583466 (1971-06-01), Dreyer
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