Hand-operated copying machine

Details Hand-operated copying machine Hand-operated copying machine

1989-07-07

1990-03-27

Cuchlinski, Jr., William A.

Geometrical instruments

Scriber

Pantographic

B43L 1312

Patent

active

049108727

ABSTRACT:
A hand-operated copying machine which can be efficiently operated to precisely perform copying process is including a frame assembly, a positioning adjusting mechanism and a vertical fixture assembly. The frame assembly includes a copying frame comprising copying tools and pilot rod efficiently controlled by means of a handle. The positioning adjusting mechanism which includes lock screw, scale knob, fixing element and locating element respectively mounted on the positioning holes of a front rod for flexible positioning control of working piece through the adjustment of the scale knob. The vertical fixture assembly includes three locating disc having mounted thereon fixed chuck element, movable chuck element arranged to match with screw bolt and jaw element served to firmily retain the working piece for performing copying process.

REFERENCES:
patent: 3171207 (1965-03-01), Wormser
patent: 3777616 (1973-12-01), Mueller

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