hectograph

hectograph
hectographic /hek'teuh graf"ik/, adj.hectography /hek tog"reuh fee/, n.
/hek"teuh graf', -grahf'/, n.
1. a process for making copies of a letter, memorandum, etc., from a prepared gelatin surface to which the original writing has been transferred.
2. a machine for making such copies.
v.t.
3. to copy with the hectograph.
Also, hektograph.
[1875-80; HECTO- + -GRAPH]

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      direct-process duplicator using either gelatin or the spirit process for making a master copy.

      The gelatin process, now rarely used, requires the preparation of a special master paper upon which the copy to be duplicated is typed, written, or drawn with a special ink or ribbon. This sheet is then pressed face down against a moist gelatin surface, to which the image is transferred in reverse form. Sheets of paper pressed against this impregnated gelatin receive an image impression. Either a flatbed or rotary machine can make the duplicate copies. The master copy can be prepared in a variety of colours by using ink and carbon sheets of different shades. Multicoloured copies may thus be produced in one operation. The practical limit on copies produced by the gelatin process is about 200.

      The spirit method is also referred to as the direct, or fluid, process. The master copy is prepared by typewriter, handwriting, punched card, or computer-printing devices. Master copies can also be prepared by copying machines and microfilm reader-printers. The master sheet is then fastened to a rotating drum. As copy sheets, slightly moistened by a special liquid, are brought into direct contact with the master sheet, a minute amount of the carbon is transferred to them, resulting in finished copies. Multicolour duplication in one operation is possible, as it is with the gelatin process. A further advantage of the spirit process is that information can be added to or deleted from the master. Up to 300 copies can be made from one master sheet.

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Universalium. 2010.

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Look at other dictionaries:

  • Hectograph — Hec to*graph, n. [Gr. ? hundred + graph.] A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin. [Written also {hectograph}.] …   The Collaborative International Dictionary of English

  • hectograph — Hec to*graph, n. [Gr. ? hundred + graph.] A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin. [Written also {hectograph}.] …   The Collaborative International Dictionary of English

  • hectograph — [hek′təgraf΄] n. [Ger hektograph < hekto (< Fr hecto , HECTO ) + graph, GRAPH] a duplicating device by which written or typed matter is transferred to a glycerin coated sheet of gelatin, from which many copies can be taken vt. to duplicate… …   English World dictionary

  • Hectograph — The hectograph or gelatin duplicator or jellygraph is a printing process which involves transfer of an original, prepared with special inks, to a pan of gelatin or a gelatin pad pulled tight on a metal frame.The special aniline dyes for making… …   Wikipedia

  • hectograph — Chromograph Chro mo*graph, n. [Gr. ? color + graph.] An apparatus by which a number of copies of [ritten katter, kaps, plons, etc., can be made; called also {hectograph}. [1913 Webster] …   The Collaborative International Dictionary of English

  • hectograph — noun Etymology: German Hektograph, from hekto hect + graph graph Date: 1880 a machine for making copies of a writing or drawing produced on a gelatin surface • hectograph transitive verb …   New Collegiate Dictionary

  • hectograph — hec•to•graph [[t]ˈhɛk təˌgræf, ˌgrɑf[/t]] n. 1) pri a process or machine for making copies from a prepared gelatin surface to which the original document has been transferred 2) pri to copy with a hectograph • Etymology: 1875–80 hec to•graph′ic… …   From formal English to slang

  • Hectograph — Гектограф …   Краткий толковый словарь по полиграфии

  • hectograph — hec·to·graph || hektÉ™græf / grɑːf n. copy machine comprising of a gelatin surface (softened with glycerin) from which copies of written or typed material can be made …   English contemporary dictionary

  • hectograph — hec·to·graph …   English syllables

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