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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 ...
One of his most famous inventions was the Benton Pantograph, an engraving machine which not only was capable of scaling a single font design pattern to a variety of sizes, but could also condense, extend, and slant the design. [5]
Letter copying book process; Mechanical processes Tracing to make accurate hand-drawn copies; Pantograph, manual device for making drawn copies without tracing, can also enlarge or reduce; Printmaking, which includes engraving and etching. Relief printing including woodcut; Intaglio (printmaking) or copperplate engraving; Planographic printing ...
Edmond Hoyle (1672 – 29 August 1769) [2] was an English writer best known for his works on the rules and play of card games.The phrase "according to Hoyle" (meaning "strictly according to the rules") came into the language as a reflection of his broadly perceived authority on the subject; [2] use of the phrase has since expanded to any appeal to a putative authority.
A pantograph connected to a pencil produced within a few minutes a "grand trait", a contour line on a piece of paper. With the help of a second scaling-down pantograph, the basic features of the portrait were transferred from the sheet in the form of dotted lines to a copper plate, which had previously been prepared with a ground for etching.
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A reducing machine was a type of pantograph lathe used until the 21st century to manufacture coin dies. Prior to the machine's introduction, designs were cut by hand into metal dies by a specialist engraver. The reducing machine changed this by allowing artists to create designs on a larger surface area and then have them scaled down and cut ...
Copy-evident documents have features that make it detectable that a copy is not the original. 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.