Accession No
4021
Brief Description
galvanometer, Unipivot type, by Cambridge and Paul Instrument Company Ltd., English, 1923 (c)
Origin
England; London
Maker
Cambridge and Paul Instrument Company Ltd.
Class
electrical
Earliest Date
1923
Latest Date
1923
Inscription Date
Material
metal (brass, other); plastic (ebonite); glass
Dimensions
length 145mm; breadth 107mm; height 72mm
Special Collection
Cambridge Instrument Company Collection
Provenance
Donated by the Cambridge Instrument Company.
Inscription
‘UNIPIVOT GALVANOMETER
CAMBRIDGE AND PAUL
INSTRUMENT CO. LTD. LONDON (with logo)’ (on dial)
Description Notes
Rectangular metal case; two brass terminals on ebonite plate on front of case; glazed window on top showing mirror and white dial; linear scale, 30 divisions on either side of central zero; clamp and zero adjustment controls below dial.
Condition: good; complete.
References
Events
Description
Robert William Paul designed the Unipivot Galvanometer in 1903. Its single pivot made it highly sensitive as well as robust, which had previously not been achievable. Paul often demonstrated its robustness by using it as a football. When Cambridge Scientific Instrument Company and R.W. Paul Instrument Company merged in 1919, the Unipivot Galvanometer was one of Paul's largest contributions to the new company.
19/03/2020
Created by: Morgan Bell on 19/03/2020
FM:41283
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