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单词 pantograph
释义

pantographn.

Brit. /ˈpantəɡrɑːf/, /ˈpantəɡraf/, U.S. /ˈpæn(t)oʊˌɡræf/
Forms: 1700s–1800s pentograph, 1700s– pantagraph, 1700s– pentagraph, 1800s pantigraph, 1800s pentegraph, 1800s– pantograph.
Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: panto- comb. form, -graph comb. form.
Etymology: < panto- comb. form + -graph comb. form, after French †pentographe (1723 in the source translated in quot. 1723 at sense 1: see below on the form), pantographe (1743). Earlier currency of the word in Latin is suggested by post-classical Latin pantographice the art of drawing by means of a pantograph:1631 C. Scheiner (title) Pantographice, seu Ars Delineandi res quaslibet per parallelogrammum lineare..mobile.In Bion and his translator Stone (see quot. 1723 at sense 1) the first element appears as pento- , as if it were derived from ancient Greek πεντα- five; so also penta- (compare quot. 1728 at sense 1; occasionally still used) and pente- . Pantagraph and (rare) pantigraph show irregular forms of panto- comb. form.
1. An instrument for the mechanical copying of a plan, diagram, pattern, etc., esp. on a different scale, typically with two drawing points connected by an adjustable parallelogram of jointed rods (cf. parallelogram n. 2). Also: any of various similar mechanisms for automatically guiding or scaling the motion of a cutter, stylus, etc.
ΘΚΠ
society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing
parallelogramc1656
pantograph1723
pantographer1750
reducing compass1778
tracer1812
eidograph1828
reducing machine1848
reduction compass1853
planigraph1877
tracing-instrument1877
society > occupation and work > equipment > machine > machines which impart power > engine > steam engine > [noun] > device for recording pressure
pantograph1723
1723 E. Stone tr. N. Bion Constr. & Principal Uses Math. Instruments 86 Of the Pentograph, or Parallelogram.
1728 E. Chambers Cycl. Pentagraph, an Instrument whereby Designs, Prints, &c. of any Kind, may be copied in any Proportion.
1766 B. Martin New Art Surv. by Goniometer 18 There remains therefore only the Pantagraph to be described.
1803 Hawkins Brit. Patent 2735 Attaching..pencils, etc. to a double pantograph.
1844 Mechanics' Mag. 40 92 The Eidograph,..invented about the year 1821..is considered superior in many respects to the Pentograph.
1874 Notices Proc. Royal Inst. Great Brit. 7 184 The other pole will then describe a curve precisely similar in shape, but drawn on a different scale, as in any ordinary pantigraph.
1879 G. B. Prescott Speaking Telephone (new ed.) 303 By using a form of pantograph, Prof. Mayer has obtained magnified tracings on smoked glass.
1895 Oracle Encycl. I. 585/2 Patterns are also etched on the rollers with nitric acid, by lines cut..by means of Rigby's pentagraph machine.
1897 Sketch 26 May 181/2 The pantagrapher follows, or traces, with his pantagraph, the course of the stitches in the sketch of the pattern to be produced.
1939 Geogr. Jrnl. 94 218 Traced from the mosaic..and then transferred by pantagraph to the map.
1947 A. O. R. Johnson & J. L. Daniels in P. I. Smith Pract. Plastics xiv. 191/2 In the case of the pantograph milling machines, these follow a prepared master, and the resulting impression can be either a reduction or an enlargement of the master.
1967 Times Rev. Industry Mar. 100/2 (advt.) The Diaform is a pantograph of 10:1 or 5:1 reduction which transfers the required form from a sheet metal template to a grinding wheel.
1994 Lee Valley Gift Catal. Christmas '94 (Lee Valley Tools, Canada) 28/1 A pantograph is used to change the scale of drawings; this one, with 15″ wooden arms, can be used to enlarge any plane figure up to ten times its size.
2. A jointed, self-adjusting framework on the top of an electric vehicle for conveying the current from overhead wires.
ΘΚΠ
society > travel > rail travel > rolling stock > [noun] > locomotive > parts of electric railway traction unit
guard-brush1888
nose suspension1894
nose1907
pantograph1907
dead man's handle1908
the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conductor used in transport > [noun] > conductor of current from wires
trolley1891
trolley-wheel1891
bow trolley1901
pantograph1907
bow1909
1907 F. H. Davies Electr. Power xxiii. 269 The..collecting gear is that known as the pantograph, and the object..is to permit of high speed running and reversal of direction without any corresponding adjustment of the gear.
1920 Glasgow Herald 23 Sept. 7 Electric locomotives can..be fitted..with pantograph collectors.
1970 Daily Mail 8 Jan. 1/4 The pantograph..appears to have jumped on top of the wire instead of running beneath it.
1993 Mod. Railways July 419/3 Under normal operation on 25kV lines the pantograph will be raised on both power cars.
1995 Guardian 13 Apr. i. 24/4 Power supplies were shut down to allow engineers to cut away the pantograph connector from the overhead wires.
3. Any of various other adjustable supporting or extending mechanisms in the form of a diamond-shaped trellis or lazy tongs. Frequently attributive.
ΚΠ
1942 Archit. Rev. 92 46 (caption) The early tube carriages of 1906, seqq., had pantograph doors at both ends.
1969 Science 16 May 776 The scoop was mounted on a pantograph arm that could be extended about 1.5 meters or retracted close to the spacecraft by a motor drive.
1982 A. Road Doctor Who: Making of TV Series 40/2 More than 200 lights hang from the high ceiling on latticed supports known as pantographs. They hover at all angles.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).

pantographv.

Brit. /ˈpantəɡrɑːf/, /ˈpantəɡraf/, U.S. /ˈpæn(t)oʊˌɡræf/
Origin: Formed within English, by conversion. Etymon: pantograph n.
Etymology: < pantograph n. Compare French pantographier (1893). Compare earlier pantographed adj., pantographing n.
transitive. To copy or change the scale of by means of a pantograph; (also) to mark, stamp, imprint, etc., with something copied by means of a pantograph.
ΘΚΠ
society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > make plan or diagram of [verb (transitive)] > drawing equipment > enlarge or reduce
pantograph1934
1934 Webster's New Internat. Dict. Eng. Lang. Pantograph, to copy with or to function by the use of a pantograph.
1936 J. Agate in Sunday Times 12 Apr. 5/1 Can a drop-earring be pantographed to chandelier-size without loss of exquisiteness?
1982 Washington Post (Nexis) 17 Sept. (Weekend section) 55 Crank arms pantographed with the Bianchi logo.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1723v.1934
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