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Ligne

The ligne (pronounced [liɲ] ), or line or Paris line,[1] is a historic unit of length used in France and elsewhere prior to the adoption of the metric system in the late 18th century, and used in various sciences after that time.[2][3] The loi du 19 frimaire an VIII (Law of 10 December 1799) states that one metre is equal to exactly 443.296 French lines.[4]

Ligne
Unit systemFrench
Unit oflength
Conversions
1 ligne in ...... is equal to ...
   French units   12 Truchet point
1/12 pouce
   metric (SI) units   2.2558 mm
   imperial/US units   0.08881 in

It is vestigially retained today by French and Swiss watchmakers to measure the size of watch casings,[5][a] in button making and in ribbon manufacture.

Current use edit

Watchmaking edit

 
The ligne is still used by French and Swiss watchmakers

There are 12 lignes to one French inch (pouce). The standardized conversion for a ligne is 2.2558291 mm (1 mm = 0.443296 ligne),[4] and it is abbreviated with the letter L or represented by the triple prime, .[5] One ligne is the equivalent of 0.0888 international inch.

This is comparable in size to the British measurement called "line" (one-twelfth of an English inch), used prior to 1824.[6] (The French inch at that time was slightly larger than the English one, but the system of 12 inches to a foot and 12 lines to an inch was the same in both cases.)

Hatmaking edit

Ligne is used in measuring the width of ribbons in men's hat bands,[7] at 11.26 per international inch.[8]

Button making edit

The button trade uses the term ligne (sometimes "line"), but with a substantially different definition: 140 inch (0.635 mm).[9][10]

See also edit

Notes edit

  1. ^ Par tradition ancestrale, les horlogers n’utilisent pas le millimètre mais la ligne pour désigner le diamètre d'encageage d'un mouvement.[5] [By ancestral tradition, watchmakers do not use the millimeter but the line to designate the casing diameter of a movement]

References edit

  1. ^ Gates, E.J. (1915). "The Determination of the Limens of Single and Dual Impression by the Method of Constant Stimuli". The American Journal of Psychology. 26 (1): 152–157. doi:10.2307/1412884. JSTOR 1412884.
  2. ^ Stearn, W.T. (1992). Botanical Latin: History, grammar, syntax, terminology and vocabulary, Fourth edition. David and Charles.
  3. ^ Neumann, F. (January 1863). "IX. Experiments on the calorific conductibility of solids". Philosophical Magazine. 4. 25 (165): 63–65. doi:10.1080/14786446308643418.
  4. ^ a b Suzanne Débarbat. "Fixation de la longueur définitive du mètre" [Establishing the definitive metre] (in French). Ministère de la culture et de la communication (French ministry of culture and communications). Retrieved 2011-03-01.
  5. ^ a b c "Foire aux questions sur l'horlogerie et les montres" [Frequently asked questions about watches and clocks], horlogerie-suisse.com (in French), retrieved 2022-01-18
  6. ^ Oxford English Dictionary
  7. ^ "What are French Lignes?".
  8. ^ "Converting between lignes and inches".
  9. ^ "An Easy Guide to Button Measurement and Sizing". Sun Mei Button Enterprise Co., Ltd. 2019-06-19.
  10. ^ The Metric System | Hearings Before a Subcommittee of the Committee on Manufactures, United States Senate, Sixty-seventh Congress, First and Second Sessions on S. 2267 a Bill to Fix the Metric System of Weights and Measures as the Single Standard of Weights and Measures for Certain Uses. By United States. Congress. Senate. Committee on Manufactures. October 11, 1921. p. 216.

ligne, equivalent, english, unit, line, unit, belgian, noble, house, family, tributary, sambre, river, confused, with, french, line, shipping, company, french, line, 1954, musical, ligne, pronounced, liɲ, line, paris, line, historic, unit, length, used, france. For the equivalent English unit see Line unit For the Belgian noble house see Ligne family For the tributary of the Sambre see Ligne River Not to be confused with the French Line a shipping company or The French Line a 1954 musical The ligne pronounced liɲ or line or Paris line 1 is a historic unit of length used in France and elsewhere prior to the adoption of the metric system in the late 18th century and used in various sciences after that time 2 3 The loi du 19 frimaire an VIII Law of 10 December 1799 states that one metre is equal to exactly 443 296 French lines 4 LigneUnit systemFrenchUnit oflengthConversions1 ligne in is equal to French units 12 Truchet point 1 12 pouce metric SI units 2 2558 mm imperial US units 0 08881 in It is vestigially retained today by French and Swiss watchmakers to measure the size of watch casings 5 a in button making and in ribbon manufacture Contents 1 Current use 1 1 Watchmaking 1 2 Hatmaking 2 Button making 3 See also 4 Notes 5 ReferencesCurrent use editWatchmaking edit nbsp The ligne is still used by French and Swiss watchmakers There are 12 lignes to one French inch pouce The standardized conversion for a ligne is 2 2558291 mm 1 mm 0 443296 ligne 4 and it is abbreviated with the letter L or represented by the triple prime 5 One ligne is the equivalent of 0 0888 international inch This is comparable in size to the British measurement called line one twelfth of an English inch used prior to 1824 6 The French inch at that time was slightly larger than the English one but the system of 12 inches to a foot and 12 lines to an inch was the same in both cases Hatmaking edit Ligne is used in measuring the width of ribbons in men s hat bands 7 at 11 26 per international inch 8 Button making editThe button trade uses the term ligne sometimes line but with a substantially different definition 1 40 inch 0 635 mm 9 10 See also editLine unit English unit of length Traditional French units of measurement French units of measurement before 1789 Horology Specifying measures of time measurement in clear reference unitsPages displaying short descriptions of redirect targetsNotes edit Par tradition ancestrale les horlogers n utilisent pas le millimetre mais la ligne pour designer le diametre d encageage d un mouvement 5 By ancestral tradition watchmakers do not use the millimeter but the line to designate the casing diameter of a movement References edit Gates E J 1915 The Determination of the Limens of Single and Dual Impression by the Method of Constant Stimuli The American Journal of Psychology 26 1 152 157 doi 10 2307 1412884 JSTOR 1412884 Stearn W T 1992 Botanical Latin History grammar syntax terminology and vocabulary Fourth edition David and Charles Neumann F January 1863 IX Experiments on the calorific conductibility of solids Philosophical Magazine 4 25 165 63 65 doi 10 1080 14786446308643418 a b Suzanne Debarbat Fixation de la longueur definitive du metre Establishing the definitive metre in French Ministere de la culture et de la communication French ministry of culture and communications Retrieved 2011 03 01 a b c Foire aux questions sur l horlogerie et les montres Frequently asked questions about watches and clocks horlogerie suisse com in French retrieved 2022 01 18 Oxford English Dictionary What are French Lignes Converting between lignes and inches An Easy Guide to Button Measurement and Sizing Sun Mei Button Enterprise Co Ltd 2019 06 19 The Metric System Hearings Before a Subcommittee of the Committee on Manufactures United States Senate Sixty seventh Congress First and Second Sessions on S 2267 a Bill to Fix the Metric System of Weights and Measures as the Single Standard of Weights and Measures for Certain Uses By United States Congress Senate Committee on Manufactures October 11 1921 p 216 Retrieved from https en wikipedia org w index php title Ligne amp oldid 1166762279, wikipedia, wiki, book, books, library,

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