Geometrical instruments – Straightedge type – Square and sliding nonpivotal straightedge
Patent
1988-03-28
1989-09-12
Cuchlinski, Jr., William A.
Geometrical instruments
Straightedge type
Square and sliding nonpivotal straightedge
33770, B43L 1300
Patent
active
048647349
ABSTRACT:
A scale holder is provided for securely retaining a scale to permit various measurements to be made. The scale holder includes orthogonally disposed major and minor planar walls on which the scale holder can be securely supported. The scale holder further includes a nonplanar support defined by intersecting generally planar support surfaces to permit the scale holder to be supported on an arcuate or irregular surface. A plurality of scale guides and slots are provided to selectively position a scale in orthogonal or parallel relationship to one or more of the walls of the scale holder. Clamps further are provided to retain the scale in selected position relative to the scale holder.
REFERENCES:
patent: 894498 (1908-07-01), Hills
Cavnar Jeffery W.
Herring Billy W.
Willis Curtiss O.
Woodard Harry L.
Cuchlinski Jr. William A.
Sommer Evelyn M.
Will Thomas B.
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