Accession No

4077

Brief Description

prototype of electrochemical dissolved oxygen apparatus, prepared for the patent application, by Cambridge Instrument Company, 1950 - 1961 (c)

Origin

England

Maker

Cambridge Instrument Company Ltd.

Class

chemistry

Earliest Date

1950

Latest Date

1961

Inscription Date

Material

wood; glass; rubber; plastic (perspex, ivorine, bakelite, at least 5 others); metal (steel, at least 4 others)

Dimensions

length 814mm; breadth 510mm; height 135mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

Description Notes

Black-painted wooden base with white metal hinges for attachment to cover. Mounted on the front of the panel are a motor (which acts as a circulating pump) and various glass chambers and connecting tubes. These include an acid bottle with electrodes for the production of hydrogen, an oxygen genrator containing an inorganic oxide, a water-cooler, a measuring cell with scale divided 0 - 10 numbered by 2 subdivided to 0.2. Switches for motor, furnace, calibration unit, and test/record options. Various connection through holes inthe board to underside where the tubes and electrical connections are located.

Condition poor (glass broken, small shards of glass on panel); complete

References

Events