Tilt rule

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Tilt rule including measuring table (cut open)

The tilting rule (also telescope ruler , rarely telescope diopter or measuring table attachment ) is a historical device for land surveying and represents a greatly improved diopter ruler ; the latter was also called the rule , presumably after the French word règle for " ruler ".

As a tool to the alidade drawing detecting served polar coordinates by with their aid the direction of the male is set points and marked. The horizontal angle and distance were always at a measurement point based extending vertically below the measuring table was with solder and Lotgabel by transplant was transferred to the drawing vehicle.

The tilt rule is part of the measuring table equipment. It consists of a column with a movable telescope for optical distance measurement and a ruler , usually made of nickel silver or brass, which can be moved parallel to the optical axis . It is placed on the horizontally aligned measuring table sheet on which the map sheet is fixed. The measuring table is composed of a measuring table top or sheet, head and tripod .

Before the introduction of the electronic total station total station recordings were performed with measuring table and alidade, where terrain points to position and were in terms of height polar recorded and simultaneously mapped. Tilting rules could be equipped with a bussole , which, however, required the material for the stand of the measuring table, its individual parts and the tilting rule to be non-magnetizable.

The term “measuring table sheet” was retained for the topographical map on a scale of  1: 25,000 (TK25), which was first produced as part of the Prussian new record at the end of the 19th century.

Individual evidence

  1. Arwed Fuhrmann: The tipping rules, their use, testing and correction. A guide for architects, construction technicians, surveyors etc. Seemann, Leipzig 1896, p. 1.

Web links

Wiktionary: tilting rule  - explanations of meanings, word origins, synonyms, translations