Pantograph integrally formed or molded of plastic material

Details Pantograph integrally formed or molded of plastic material Pantograph integrally formed or molded of plastic material

1978-09-15

1979-06-19

Haroian, Harry N.

Geometrical instruments

Scriber

Pantographic

B43L 1310

Patent

active

041582578

ABSTRACT:
A pantograph which is integrally molded of plastic material and as an integral unit comprises a plurality of links, with certain of said links having an integrally formed leg, pin and bearings, with one of the links having means for receiving and supporting a writing instrument. The integral unit is such that the various links and parts may be disconnected from their integrally formed unit and assembled and connected so the links pivot with respect to each other and same is operated as a pantograph. The parts being pivotally connected by their own means without the use of extraneous fastening means.
Two alternate embodiments are shown both having a clip to secure the stationary end of the pantograph to a writing surface with one being provided with a movable pointer thereby allowing the pantograph to be used for two to one reproductions or one-half to one reproductions.

REFERENCES:
patent: 228062 (1880-05-01), Gregory
patent: 978012 (1910-12-01), Foster
patent: 3160956 (1964-12-01), Mercorelli
patent: 3858324 (1975-01-01), Padowicz
"Modern Plastics," pp. 122-123, 4/45.

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