Geometrical instruments – Area integrators – Electrical
Patent
1981-05-29
1983-07-12
Little, Willis
Geometrical instruments
Area integrators
Electrical
B43L 1320
Patent
active
043923062
ABSTRACT:
A letter forming stencil for use in signwriting or the like comprises a substantially rectangular plate having two apertures formed therethrough and having a separate corner forming piece or pieces, the stencil in use being placed on the surface upon which it is desired to form letters and the outline of the letter being traced thereon, the length of various lines comprising the letter being judged against indication means and spaced around the perimeter of the plate and the corners of the letter being formed with the aid of corner forming pieces. The corner forming pieces may comprise any one of (a) quadrants pivotably located adjacent each corner of the plate, and being pivotable so as to extend over the perimeter of the plate, (b) a T shaped piece able to be pivotably located centrally on the plate, the arms of the T shaped piece extending over the perimeter of two corners of the plate, (c) a separate piece having a number of corners formed thereon or (d) alternate round or square shaped corners formed in the plate, the plate being moved in order to position the corners as desired on the letter outline.
REFERENCES:
patent: 2005255 (1935-06-01), Oslund
patent: 3716921 (1973-02-01), Vicent
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