Template guide

Details Template guide Template guide

1981-12-07

1983-06-21

Haroian, Harry N.

Geometrical instruments

Straightedge type

33174B, 33430, B43L 1300

Patent

active

043887643

ABSTRACT:
A template guide for use with a parallel motion protractor or drafting machine having a substantially flat elongated base member with a longitudinal ridge extending substantially parallel to the edges of the base member and projecting normal to one surface of the base member, the ridge dividing said base member into first and second portions, the first portion being of a size efficient to cradle a drafting template and allow a drafting template to be moved longitudinally along the ridge parallel to a drafting arm of a parallel motion protractor, and the second portion being of a size efficient to cradle the drafting arm of a parallel motion protractor such that the ridge extends parallel to the edge of the drafting arm, and means for releasably securing the base member to the drafting arm such that the ridge is maintained parallel to the edge of the drafting arm.

REFERENCES:
patent: 3316644 (1967-05-01), Baker et al.

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