Accession No

5979

Brief Description

portable temperature indicator, by Cambridge Scientific Instrument Company Ltd., English, circa 1915

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1915

Latest Date

1915

Inscription Date

Material

metal (cast iron, brass, copper; steel); glass; plastic; rubber

Dimensions

length 200mm; width 200mm; height 170 mm

Special Collection

Provenance

Donated on or before 05/11/2003.

Inscription

ZERO ADJUSTMENT No. 43695

Description Notes

black cast iron tempertature indicator with pivoting metal handle and large cast metal zero adjusting knob with serrated hand grip. There is a glazed window at the front of the instrument to reveal the pointer, there is no marked scale. Two wires lead out from the instrument, one attatched to a screw terminal.

This is an early version of this instrument dating from around 1915, this is evident in its early pivoted movement, cast metal case, large zero adjusting knob and lack of a letter prefix on the serial. Aquired in conjunction with Wh. 5980 and wh. 5981 to illustrate the instruments development.

Condition good

References

Events