Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
Patent
1996-02-14
2000-02-01
Hirshfeld, Andrew
Geometrical instruments
Straightedge type
Plural straightedges nonadjustably fixed at right angles
33480, 33483, B43L 700
Patent
active
060188804
ABSTRACT:
A straight edge guide having a straight edge formed along a first elongated planar member. An elevated handle is provided to hold the device in place which positions a user's hand above a blade which traverses the elongated planar member, and which transfers a user's weight through the handle as the user is in the kneeling position to hold one end of the guide in place, while the opposite end of the guide is held in place by the user's knee. An outrigger is provided which provides further friction to hold the device in place.
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P. 7, Crain Floor Covering Tools Catalogue No. 122C, no date.
Hirshfeld Andrew
Killough B. Craig
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