Geometrical instruments – Straightedge type – Base attached
Patent
1980-06-11
1982-12-21
Phillips, Charles E.
Geometrical instruments
Straightedge type
Base attached
B43L 1324
Patent
active
043641849
ABSTRACT:
Apparatus for use in making signs, displays or artwork is described. The apparatus consists of a base board to which a receptor surface or, for example, a sign sheet may be secured. A sheet holder is movably mounted on the base board and removably supports a carrier sheet bearing horizontally aligned rows of indicia formed of dry transfer material in overlying relationship with the receptor surface. The carrier sheet may be slidable on the sheet holder back and forth horizontally across the receptor surface. The sheet holder is mounted to move vertically across the receptor surface in equal size steps between successive registered positions. The distance between the base line of successive rows of indicia on the carrier sheet is an integral multiple of the sheet holder step size so that when letters are successively transferred from different lines of the carrier sheet to the same line on the receptor surface, those letters are accurately level with one another and in proper horizontal alignment. Several arrangements for moving the sheet holder vertically in predetermined size steps are disclosed.
REFERENCES:
patent: 648396 (1900-05-01), Eaton
patent: 1600545 (1926-09-01), Hooper
patent: 2765543 (1956-10-01), Crowell et al.
patent: 3131106 (1964-04-01), MacKenzie
patent: 3212913 (1965-10-01), MacKenzie
patent: 3803729 (1974-04-01), Jacerra
patent: 3945141 (1976-03-01), Frost
Letraset Corporation
Phillips Charles E.
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