pantograph

pantographer /pan tog"reuh feuhr/, n.pantographic /pan'teuh graf"ik/, pantographical, adj.pantographically, adv.pantography, n.
/pan"teuh graf', -grahf'/, n.
1. Also, pantagraph. an instrument for the mechanical copying of plans, diagrams, etc., on any desired scale.
2. Elect. a device usually consisting of two parallel, hinged, double-diamond frames, for transferring current from an overhead wire to a vehicle, as a trolley car or electric locomotive.
[1715-25; PANTO- + -GRAPH]

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  instrument for duplicating a motion or copying a geometric shape to a reduced or enlarged scale. It consists of an assemblage of rigid bars adjustably joined by pin joints; as the point of one bar is moved over the outline to be duplicated, the motion is translated to a point on another bar, which makes the desired copy according to the predetermined scale. In the Figure—> the links 2, 3, 4, and 5 are connected by pin joints at O, A, B, and C. Joint O is fixed to a support, while joints A, B, and C are free to move. Link 5 is a solid bar continuing on to Q. Point P is the guided point and is usually fixed on link 4. As P is guided on a specific path, such as the square in the Figure—>, point Q will follow a similar path on an enlarged scale. Conversely, if point Q is guided, point P will follow a similar path on a reduced scale.

      The links in a pantograph may be arranged in other ways, but they all contain a parallelogram. Pantographs are used for reducing or enlarging engineering drawings and maps and for guiding cutting tools over complex paths. Artists specializing in miniatures use pantographs to achieve greater detail.

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Universalium. 2010.

Look at other dictionaries:

  • Pantograph — (Storchschnabel), ein Instrument, das zu einer gegebenen Figur eine ähnliche oder auch eine kongruente Figur zeichnet, wenn ein Stift desselben auf der gegebenen Figur entlang geführt wird. Der in Fig. 1 schematisch dargestellte Pantograph… …   Lexikon der gesamten Technik

  • Pantograph — Pan to*graph, n. [Panto + graph: cf. F. pantographe.] An instrument for copying plans, maps, and other drawings, on the same, or on a reduced or an enlarged, scale. [Written also {pantagraph}, and incorrectly {pentagraph}.] [1913 Webster] 2. An… …   The Collaborative International Dictionary of English

  • Pantograph — (v. gr.), Instrument, so v.w. Storchschnabel …   Pierer's Universal-Lexikon

  • Pantograph — (v. gr.), so v.w. Storchschnabel 1) …   Pierer's Universal-Lexikon

  • Pantograph — (griech.), s. Storchschnabel und Telegraph …   Meyers Großes Konversations-Lexikon

  • Pantograph — Pantogrāph (grch.), Storchschnabel, Instrument zum Übertragen einer Zeichnung oder Karte in einen andern (meist kleinern) Maßstab; von Christoph Scheiner 1603 erfunden und in dessen »Pantographia« (1635) beschrieben. Pantographīe, die Kunst, mit… …   Kleines Konversations-Lexikon

  • Pantograph — Pantograph, griech. deutsch, was Storchschnabel …   Herders Conversations-Lexikon

  • Pantograph — An instrument for copying designs, etc., on a reduced or enlarged scale …   Dictionary of the English textile terms

  • pantograph — [pan′tə graf΄] n. [Fr pantographe: see PANTO & GRAPH] 1. a mechanical device for reproducing a map, drawing, etc. on the same or a different scale, consisting of a framework of jointed rods in a roughly parallelogram form 2. any similar framework …   English World dictionary

  • Pantograph — A pantograph (from Greek roots παντ all, every and γραφ to write , from their original use for copying writing) is a mechanical linkage connected in a special manner based on parallelograms so that the movement of one specified point is an… …   Wikipedia

  • Pantograph — Sorensons Gravurpantograf um 1867 Mechanischer Pantograf …   Deutsch Wikipedia

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