Brown - figure 349

Description

Another form of parallel ruler. The arms are jointed in the middle and connected with an intermediate bar, by which means the ends of the ruler, as well as the sides, are kept parallel.

Linked items

Documents:

507 mouvements mécaniques

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?image=20001023
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_20001023.html

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IFMA		http://www.ifma.fr
BCU		http://bibliotheque.clermont-universite.fr

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Brown - figure 349