pantograph
Use Pantograph in a sentence
təˌgræf, -ˌgrɑfBased on the Random House Dictionary, © Random House, Inc. 2013.
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| a fool or simpleton; ninny. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
pantograph (ˈpæntəˌɡrɑːf) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | an instrument consisting of pivoted levers for copying drawings, maps, etc, to any desired scale |
| 2. | a sliding type of current collector, esp a diamond-shaped frame mounted on a train roof in contact with an overhead wire |
| 3. | a device consisting of a parallelogram of jointed rods used to suspend a studio lamp so that its height can be adjusted |
| pantographer | |
| —n | |
| pantographic | |
| —adj | |
| panto'graphically | |
| —adv | |
| pan'tography | |
| —n | |
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pantograph
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 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 , 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
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