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Description: | SIR W. THOMSON'S PATENT No. 229 J. WHITE GLASGOW (engraved on a makers trade plate). 0-300 (scale divisions). V23 (old departmental number in white paint) DES THOMSON,William,Lord,1st Baron Kelvin of Largs. between 1888 and 1892 MANU J. White. 1888 and 1892 16, 18 and 20, Cambridge Street, Glasgow, Scotland. This is a form of torsional balance, based on the the quadrant electrometer, having a series of vanes, in a vertical column of quadrants, supported by a platino-iridum strip. Instruments of this type were used to measure a variety of ranges of voltages between 40 and 20,000 volts. The dash pot which was filled with oil contained a vane attached to the suspension which provided damping and a dead beat action. This form of the instrument was intended for engine room operation. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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