A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from its original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen or stylus, in tracing an image, produces mimic movements recorded by a second pen.
A pantograph is a mechanical device built from linked bars arranged in a parallelogram shape, originally designed to copy and scale drawings. The term also refers to the spring-loaded arm on top of electric trains that collects power from overhead wires.
The pantograph is a drawing instrument used to enlarge and reduce figures. It was devised by the Jesuit astronomer and mathematician Christoph Scheiner in 1603 and described by him in a 1631 publication. Scheiner’s instrument was of wood. Pantographs were soon made elsewhere in Europe of brass.
pantograph, instrument for duplicating a motion or copying a geometric shape to a reduced or enlarged scale.
The meaning of PANTOGRAPH is an instrument for copying something (such as a map) on a predetermined scale consisting of four light rigid bars jointed in parallelogram form; also : any of various extensible devices of similar construction (as for use as brackets or gates).
A pantograph has one fixed point O (the “Origin”), and two special points P and Q. It has the property that Q traces an enlarged, or "scale" copy of whatever P traces.
A pantograph mechanism is a type of linkage mechanism used to copy, enlarge, or reduce a figure or motion in the same proportion. It consists of a system of bars connected in a parallelogram form, allowing the movement of one point to be exactly reproduced by another point at a fixed scale.