Astragals (2): Difference between revisions
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1. Bars used to support the glazing and the roof of a lantern. | 1. Bars used to support the glazing and the roof of a lantern. | ||
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[[Category:Alphabetical Index]] | [[Category:Alphabetical Index]] | ||
[[Category:IALA Dictionary 1970-89 Edition]] | [[Category:IALA Dictionary 1970-89 Edition]] | ||
[[Category:IALA Dictionary 2023 Revision]] | |||
Latest revision as of 08:09, 17 September 2026
1. Bars used to support the glazing and the roof of a lantern.
2. In the U.S.A., loosely used for bars supporting the optical elements of a prismatic lens or of a fixed lens. (Fig. 16b)
Note 1: In Britain, the term is used in sense 2 only in respect of a fixed lens.
Note 2: The German term Verstrebungen is also used for bars supporting the optical elements of a prismatic lens or of a fixed lens.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
