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pantograph    
n. 缩图器;电杆架

缩图器;电杆架

pantograph
缩图仪;缩图器

pantograph
缩图器

pantograph
n 1: mechanical device used to copy a figure or plan on a
different scale

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 electrical conducting device consisting of a
collapsible frame resembling a pantograph[1], connected to
the top of an electrically-powered vehicle such as a
trolley, and used to conduct electrical current between
the vehicle and an overhead electric wire, which supplies
the power to the vehicle. The variable height of the
pantograph ensures that it can move to follow variations
in the height of the overhead wires, and thus make
constant contact with the wires.
[PJC]

{Skew pantograph}, a kind of pantograph for drawing a copy
which is inclined with respect to the original figure; --
also called {plagiograph}.
[1913 Webster] Pantographic


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  • Pantograph - Wikipedia
    A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from its original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen or stylus, in tracing an image, produces mimic movements recorded by a second pen
  • What Is a Pantograph? Uses, History, and How It Works
    A pantograph is a mechanical device built from linked bars arranged in a parallelogram shape, originally designed to copy and scale drawings The term also refers to the spring-loaded arm on top of electric trains that collects power from overhead wires
  • Pantographs | National Museum of American History
    The pantograph is a drawing instrument used to enlarge and reduce figures It was devised by the Jesuit astronomer and mathematician Christoph Scheiner in 1603 and described by him in a 1631 publication
  • Amazon. com: Pantograph
    Pantograph Drawing Tool for Enlarging and Reducing Drawings - Adjustable Ratio Art Scaler, Precision Copying Instrument for Artists, Crafters, Students with Drawing Pen Tips (style A)
  • Urban Elementz: Pantographs Quilting
    Are you pantograph obsessed or looking for a versatile go-to pattern that works anywhere and anytime? Do you love finding treasures to add to your stash? Are you crazy about FREE stuff?
  • Pantograph | Drawing, Tracing, Copying | Britannica
    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
  • Pantograph: How It Works, Diagram Examples | FIRGELLI
    A Pantograph is four rigid bars pinned at four pivots so they form a parallelogram with two arms extended outward One pivot is fixed to the bench — that's the fulcrum
  • How a Pantograph Works - Clark Science Center
    A pantograph has one fixed point O (the “Origin”), and two special points P and Q It has the property that Q traces an enlarged, or "scale" copy of whatever P traces
  • PANTOGRAPH Definition Meaning - Merriam-Webster
    The meaning of PANTOGRAPH is an instrument for copying something (such as a map) on a predetermined scale consisting of four light rigid bars jointed in parallelogram form; also : any of various extensible devices of similar construction (as for use as brackets or gates)
  • Wood Pantograph - DEW Drafting Supplies
    Unlock the power to create enlarged or reduced drawings up to 10x scale with the Alvin Wood Pantograph Crafted with arms from seasoned hardwood and chromed steel hardware, it ensures durability and precision





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