Geometrical instruments – Scriber – Pantographic
Patent
1989-02-01
1991-10-15
Haroian, Harry N.
Geometrical instruments
Scriber
Pantographic
33 1M, 33 181, 33 321, 33445, B43L 1300
Patent
active
050562290
ABSTRACT:
A device for marking lines on a piece of sail cloth for cutting out sections therefrom for making a sail, comprising an elongated and horizontally extending table for supporting a length of sail cloth thereon and being wider than the width of the sail cloth, a continuous strip of gearbelt material extending along each side edge of the table whereby the strips of gearbelt material are parallel to each other and to the longitudinal axis of the table, each strip of gearbelt material being pliant and being provided with internal reinforcements to prevent substantial longitudinal stretching thereof, the upper portion of each strip of gearbelt material being provided with uniformly spaced gear teeth for the length of each strip. A longitudinally moveable carriage is mounted on the table, and a transverse rotatable shift is mounted in the carriage. A pair of gears are attached to the ends of the shaft for rotation therewith, each gear being adapted to mesh with a gearbelt strip such that a substantial portion of the weight of the carriage is exerted against the gearbelt strips through the gears.
REFERENCES:
patent: 977829 (1910-12-01), Ourdan
patent: 2219783 (1940-10-01), Matson
patent: 2252535 (1941-08-01), West et al.
patent: 3550276 (1970-12-01), Kramer et al.
patent: 4426783 (1984-01-01), Gerber et al.
patent: 4709483 (1987-12-01), Hembree et al.
patent: 4777727 (1988-10-01), Lawrence
patent: 4779348 (1988-10-01), Levy
Dorman William S.
Haroian Harry N.
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