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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 ...
Pantographs may have either a single or a double arm. Double-arm pantographs are usually heavier, requiring more power to raise and lower, but may also be more fault-tolerant. On railways of the former USSR , the most widely used pantographs are those with a double arm ("made of two rhombs"), but, since the late 1990s, there have been some ...
Pierre Gaveaux, 1821, by Edme Quenedey (1756–1830) after a physiognotrace. A physiognotrace is an instrument, designed to trace a person's physiognomy to make semi-automated portrait aquatints.
Void pantographs work by exploiting the limitations and features of copying equipment. A scanner or photocopier will act as a low-pass filter on the original image, blurring edges slightly. It will also not be perfectly aligned with the directions of the document, causing aliasing. Features smaller than the resolution will also not be reproduced.
Pages in category "Pantographs (rail)" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. ...
Longarm quilting is the process by which a longarm sewing machine is used to sew together a quilt top, quilt batting and quilt backing into a finished quilt.. A complete longarming system typically consists of a sewing machine head, a frame, a table with a layer of plastic (under which is placed a pantograph), and several rollers on which the fabric layers and batting are attached.
Faiveley CX pantographs were fitted in the V150 TGV's record-breaking attempt of 2007, which set a new world railway speed record of 574.8 kilometres per hour. [10] In April 2008, the company acquired from Carbone Lorraine its sintered brake material manufacturing and design department. [11]
The Arrow IIIs also featured the twin-arm Stemmann pantographs as on the Arrow Is, built by the United Knitting Machine corporation. These were replaced with single arm TransTech type pantographs between 2011 and 2014. The large central air scoop over the center of the roof on each cab end is the final major spotting feature.
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