Accession No

4308

Brief Description

Double Weston Normal Electrochemical Cell, by Cambridge Scientific Instrument Company Ltd., English, 1908

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1908

Latest Date

1908

Inscription Date

Material

Plastic (ebonite); metal (mercury; cadmium (sulfate solution); brass); glass

Dimensions

height 142mm; diameter 92mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

“THE CAMBRIDGE / SCIENTIFIC INSTRUMENT CO. LTD. / CAMBRIDGE ENGLAND / No. 7895 / INTERNATIONAL VOLTS / STANDARD / CADMIUM CELL” (on top);
“NPL (logo) 7037; NPL 9540” (on top, added)

Description Notes

Double Weston Normal Electrochemical Cell, by Cambridge Scientific Instrument Co., 1908.

Circular ebonite top; two pairs of brass and ebonite terminals; hole for thermometer; brass frame on underside of top supports two H-shaped glass cells; in brass cylindrical case. With fragment of paper label on side, giving some values of potentials.

Condition: fair; complete

References

Events