Buttons Specifications
Ligne
Ligne is a French word meaning line. It was in use prior to the French adaptation of the metric system in the late 1700s, and is still used by French and Swiss wristwatch makers to measure the size of a watch movement. (For example, Girard-Perregaux will introduced a new 12 ligne chronograph movement.) In this usage there are 12 ligne to one French inch (pouce). The standardized conversion for a ligne is 2.2558291 mm (1 mm = 0.443296 ligne), and it is abbreviated with the letter L. In the eighteenth century the term ligne came into use among German button makers, where is was used to measure the diameter of buttons. The consensus definition was that a ligne was the measurement of a round wick, folded flat. In this sense it measures 1/40th of an inch.
Ligne : A button's ligne, refers to a button's size. The word ligneis a French word that became the standard reference used by German button manufacturers in the early eighteenth century. Ligne is the internationally recognized standard. Consensus at the time was that a "ligne" measured the inside diameter of a "round wick folded flat." One inch is equal to 40 English ligne, 11 French ligne,and 25.5 mm. LINGE
=
MILLIMETERS
=
INCHES
14
9.2
.362
16
10.5
.413
18
11.6
.457
20
12.5
.492
21
13.5
.531
22
14.2
.559
23
14.8
.583
24
15.0
.590
27
16.8
.661
28
17.8
.701
30
19.0
.748
32
20.5
.807
34
21.5
.846
36
22.9
.902
40
25.5
1.00
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Scale of Button Sizes Buttons are measured by the English standard of 40 lignes per inch. Therefore, a 30 ligne button is 3/4" diameter, a 45 ligne button is 1-1/8" diameter, and so on. The diagram shows the size of a button shell before covering.
Copyright Š 2013 GarmentsAudit.com. All rights reserved.