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Drafting pantograph in use Pantograph used for scaling a picture. The red shape is traced and enlarged. Pantograph 3d rendering. A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical ...
A simple pantograph is used to translate the planar motion of one pen to the other. The pantograph consists of two complete variable parallelograms ("d" and "e" on diagram): Base parallelogram: The base parallelogram is attached to two fixed pivot points at the far side of the base plate.
A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or electric bus [1] to collect power through contact with an overhead line. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings.
Freehand lettering is done without the assistance of tools. To regulate lettering height, commonly 3 mm (1 ⁄ 8-in), guidelines are drawn.Mechanical lettering is done using tools such as lettering guides, templates, or using a small mechanical pantograph referred to by the Keuffel and Esser trademark "Leroy"
William Leavenworth in 1834 introduced the pantograph, allowing the same form to be reproduced from a pattern, and manufactured wood type in Allentown, New Jersey. [ 48 ] [ 49 ] [ 50 ] A pantograph has remained a standard way of making wood type, although several other methods have been used such as die-cutting [ 51 ] and making the letter as a ...
In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied. Typically they spell out "void", "copy", "invalid" or some other indicator message. [1]
In security printing, various methods such as void pantograph are used to create patterns that are hard to copy exactly and when copied inexactly produces an easily detectable image. This can include halftone screens that are affected by the copying process, fine line patterns in different directions that are differently affected by copying and ...
A pantograph is a commonly used overhead suspension system for lamps and audio and video monitors in television studios. It is also used on a smaller scale in many photography studios. Using either motor driven cables or a spring system, the pantograph can be balanced so that a light touch can readjust the height of the load (usually a lamp).