Accession No

3661

Brief Description

portable, pivoted magnet Ohmmeter, Evershed-type, double range (100,000 and 10,000 ohms per division), by W. T. Goolden and Company, English, 1900

Origin

England; Tunbridge Wells

Maker

W. T. Goolden and Company

Class

electrical

Earliest Date

1900

Latest Date

1900

Inscription Date

Material

plastic (ebonite, ivorine); metal (brass, silver, other); glass; paper; wood.

Dimensions

box length 148mm; breadth 150mm; height 156mm

Special Collection

Cavendish Collection?

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, Cambridge, England. Listed in the Cavendish Numerical Catalogue: ‘Portable testing set Sir David Salomon’s bequest, 1929.’

Inscription

on dial: “EVERSHED’S OHMMETER / PATENT. / No. 39. / W.T.GOOLDEN & CO. LONDON / A-1= 100000 / B-1= 10000”
on top of box, on ivorine plate: “SIR DAVD SALOMONS / Broomhill TUNBRIDGE WELLS”
on top of box (added): “E. 950”

Description Notes

Ebonite top; brass framed, glazed window showing silvered dial; non-linear scale, 0 to ‘INF’; four threaded brass terminals; two position switch with ebonite handle; bubble level. In wooden carrying case with metal and ebonite handle; paper label inside lid: ‘Portable Testing set. (Evershed’s Patent.) INSTRUCTIONS FOR USE’.
Condition fine; complete.

References

Events