Accession No

4360

Brief Description

recorder, strip (thread), by Cambridge Scientific Instrument Company Ltd, English, 1910

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1910

Latest Date

1910

Inscription Date

Material

wood; glass; metal (iron)

Dimensions

height 386mm; breadth 350mm; depth 302mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘THE CAMBRIDGE SCIENTIFIC INSTRUMENT CO. LTD. CAMBRIDGE. ENGLAND. No. 9559 PATENTED
United Kingdom 10844. 1905...’ (on front of frame)

Description Notes

Rectangular wooden box with hinged, locking, glazed door and glazed window in top; one fixed foot and two levelling feet; cast-iron instrument frame removable from box; suspended coil D’Arsonval galvanometer at rear with long pointer extending to drum recorder at front; clamp and zero adjustments at top; upper of two clockworks depresses pointer on inked thread every minute (or half minute); the continuous inked thread is also moved along a system of pulleys periodically; lower clockwork rotates chart drum once per 25 hr. (or 2 hr. 5 min.); linear scale above pointer, 0 to 1 100 degrees Celsius; two terminals on base of frame for input potential; exchangeable resistance coil. With two clockwork keys, and door key.

Condition: fine (galvanometer suspension intact, clockworks operational; in working order; door key broken); complete.

References

Events