This article is about the duplication instrument. For the electrical device used above trains or trams, see Pantograph (transport). For other uses, see Pantograph (disambiguation).
Drafting pantograph in usePantograph 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 movements in a second pen. If a line drawing is traced by the first point, an identical, enlarged, or miniaturized copy will be drawn by a pen fixed to the other. Using the same principle, different kinds of pantographs are used for other forms of duplication in areas such as sculpting, minting, engraving, and milling.
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...
A pantographic knife or paratrooper knife is a folding knife whose blade is opened by a unique scissors method. The blade has a slightly longer tang than...
In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally...
that collect their current from overhead lines use a device such as a pantograph, bow collector or trolley pole. It presses against the underside of the...
for the railway industry founded in 1919. It introduced the single-arm pantograph in 1955. The company has subsidiaries in more than 24 countries. The majority...
Somerset, and brand-name of electrification equipment for railways, mostly pantographs and contact shoes. Henry Brecknell and Sons began operating in 1854....
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...
also to fine-tune the pantograph itself. The pantograph used on 325 was the stock Faiveley GPU. The wiper assembly on this pantograph weighs under 8 kg (18 lb)...
driver's cab. The two pantographs of type DSA 350 SEK (recognizable as half-pantographs, as opposed to the diamond-shaped full pantographs) were originally...
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...
× n {\displaystyle A_{0},\dotsc ,A_{m}\in \mathbb {R} ^{n\times n}} . Pantograph equation d d t x ( t ) = a x ( t ) + b x ( λ t ) , {\displaystyle {\frac...
both trolley poles and pantographs. Starting September 12, 2017, streetcars on route 509 Harbourfront started to use pantographs while those on route 510...
computers became ubiquitous, scalings of drawings were done by using a pantograph, a tool similar to a compass. Construction and geometrical background:...
contact set, instead of expensive and complex array of mechanical switches. Pantograph Telescopic cylinder Linear actuator "Scissor Lift Jack Review & Equations"...
continental Europe, it was replaced by the pantograph or the trolley pole, itself often later replaced by the pantograph. When the bow collector was first conceived...
against the wire. Pantograph: a hinged frame that holds the collecting shoes against the wire in a fixed geometry. Of the three, the pantograph method is best...
current from an overhead line system use different forms of one- or two-arm pantograph collectors, bow collectors or trolley poles. The current collection device...
synchronized radial-type arms, while many commercial vehicles use one or more pantograph arms. On some vehicles, a windscreen washer system is also used to improve...
crore. In 2007, India set a world record with the indigenously designed pantograph, developed for the use in dedicated freight corridors and other freight...
feeder station to a different combination of phases. To avoid the train pantograph bridging together two feeder stations which may be out-of-phase with each...
be impressed on the contact wire by the pantograph), which required the use of different types of pantographs, a compromise solution was adopted involving...
constructed for British Rail and the first British Rail units with both a pantograph for 25 kV 50 Hz AC overhead lines and contact shoe equipment for 750 V DC third...
as a battery, or to collect current from a sliding contact such as a pantograph. Electrically powered vehicles are used in public transportation, such...
being drawn from an overhead electric line via a trolley [pole] or a pantograph; driven by an operator onboard the vehicle; and may have either high platform...
transit trains. Today, most trams use electrical power, usually fed by a pantograph sliding on an overhead line; older systems may use a trolley pole or a...
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