Cotton's scale

Structure of mechanism
Function	This scale has two bakelite pans, one fixed and one mobile. The mobile pan, which moves about an axis supported by two brass feet, features a copper wire around the edge of one of its halves. At the other end is a small mobile weight on a threaded shaft for balancing.
Dimension of mechanism	planar
Drive movement	Rotation
Output movement	Rotation
Revolution ability	yes
Revolution ability of input link	yes

Transfer function
Output motion	revolving
Transfer function	reversed direction

Application
Examples of application	It enables the demonstration of the influence of a magnetic field on a conductor through which a current flows. The coil subjected to the magnetic field of a magnet unbalances the scale when fed by a current. It was used by future teachers in their studies at the Men's and Women's teacher training schools in Clermont-Ferrand, now the IUFM (University Teacher Training Institute)

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?mcdsc=2793025
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_mcdsc_2793025.html