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US 4,397,090 AGranted
Reproportioning graphical pantograph
OwnerRaymond Nicyperinventor
Life of this patent
Estimating the term…
Abstract
A graphical pantograph having four pivotable bars and a guide track in which two guide pins slide. The pantograph is provided with a tracer pin and a marker pin which extend through a common plane. The guide pins and the tracer and marker pins can be interchangeably placed at the pivots of two neighboring bars or at any free ends of the bars so as to reproportion the image to be reproduced in any desired ratio and angle.
Claims15
A pantograph for graphically reproducing images, comprising at least one guide track;
- four elongated bars having free ends and connecting points at which the respective bars are pivotally connected to each other;
- two guide pins on said bars adapted to slide along said track;
- a tracer on said bars for tracing an original image;
- a marker on said bars for graphically reproducing a required image;
- at least two intersecting elements, each being slidable and selectively positionable along two of said bars and permitting relative pivotal movement between the associated two bars for defining proportions of the image to be reproduced, said tracer and said marker being so positioned on said bars that they extend through a common plane;
- said guide pins, said tracer and said marker being interchangeably positionable at said free ends and at said connecting points to thereby reproportion images by condensing, expanding, or reversing, or inclining images in any desired direction.
3 more elements
Dependencies are inferred from the claim text.