Geometric lathe

Geometric lathe

A geometric lathe was used for making ornamental patterns on the plates used in printing bank notes and postage stamps. It is sometimes called a Guilloché lathe. It developed early in the nineteenth century when efforts were introduced to combat forgery, and is an adaptation of an ornamental turning lathe. The lathe was able to generate intersecting and interlacing patterns of fine lines in various shapes, which were almost impossible to forge by hand-engraving. They were used by many national Mints.

Further reading

*Peter Bower, 'Economic warfare: Banknote Forgery as a deliberate weapon', and Maureen Greenland, 'Compound plate printing and nineteenth-century bank notes, in Virginia Hewitt, ed. "The Banker's Art: Studies in paper money", pp 46-63, and pp 84-87, The British Museum Press, 1995, (ISBN 0-7141-0879-0)

ee also

*Security printing

External links

* [http://ornamentalturning.net/ Ornamental Turning]


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  • Geometric lathe — Lathe Lathe (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning… …   The Collaborative International Dictionary of English

  • Geometric lathe — Geometric Ge o*met ric, Geometrical Ge o*met ric*al, a. [L. geometricus; Gr. ?: cf. F. g[ e]om[ e]trique.] 1. Pertaining to, or according to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem.… …   The Collaborative International Dictionary of English

  • geometric lathe — noun : an instrument for engraving complicated patterns of interlacing lines (as on bank notes) …   Useful english dictionary

  • Lathe — (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning being, a frame… …   The Collaborative International Dictionary of English

  • Lathe (disambiguation) — Lathe may refer to:In woodworking and metalworking: *Lathe, used in turning wood, metals and other materials. *Lathe (metal), a lathe used specifically for metals. *Geometric lathe, used for making ornamental patterns on the plates used in… …   Wikipedia

  • Geometric — Ge o*met ric, Geometrical Ge o*met ric*al, a. [L. geometricus; Gr. ?: cf. F. g[ e]om[ e]trique.] 1. Pertaining to, or according to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem. [1913… …   The Collaborative International Dictionary of English

  • Geometric pen — Geometric Ge o*met ric, Geometrical Ge o*met ric*al, a. [L. geometricus; Gr. ?: cf. F. g[ e]om[ e]trique.] 1. Pertaining to, or according to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem.… …   The Collaborative International Dictionary of English

  • Geometric spider — Geometric Ge o*met ric, Geometrical Ge o*met ric*al, a. [L. geometricus; Gr. ?: cf. F. g[ e]om[ e]trique.] 1. Pertaining to, or according to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem.… …   The Collaborative International Dictionary of English

  • Geometric square — Geometric Ge o*met ric, Geometrical Ge o*met ric*al, a. [L. geometricus; Gr. ?: cf. F. g[ e]om[ e]trique.] 1. Pertaining to, or according to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem.… …   The Collaborative International Dictionary of English

  • Blanchard lathe — Lathe Lathe (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning… …   The Collaborative International Dictionary of English

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