Geometrical instruments – Apparel – Processes
Patent
1975-07-28
1977-01-25
Aegerter, Richard E.
Geometrical instruments
Apparel
Processes
A41H 300
Patent
active
040043460
ABSTRACT:
A multiple pattern grading machine includes an open, horizontally-disposed support frame within which a table is movably mounted by means of parallelogram linkages connecting the opposite ends of the table to the adjacent ends of the support frame. The parallelogram linkages also mount a plurality of channel bars arranged in corresponding pairs at opposite ends of the table, each corresponding pair of channel bars being adapted to mount a sheet of pattern reproducing paper therebetween, with the paper sheets arranged in a superimposed stack across the table. A selected pair of channel bars mounts a rigid grid for mounting master pattern sections located above the uppermost sheet in such a manner that each of the pattern reproducing sheets and the master pattern sections are moved relative to one another in varying increments of distance when the table is manually moved in the frame. The rigid grid supporting the master pattern sections is formed of a pair of bars extending longitudinally along opposite sides of the frame and a plurality of extensible, spring tensioned straps connecting said bars.
REFERENCES:
patent: 377456 (1888-02-01), Haitz
patent: 833613 (1906-10-01), Maiser
patent: 870333 (1907-11-01), Woodward
patent: 2013681 (1935-09-01), Budelman
patent: 2091262 (1937-08-01), Aster
patent: 2972188 (1961-02-01), Kaufman
Aegerter Richard E.
Levy Edward F.
Shepperd John W.
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