Accession No

4367

Brief Description

recorder, strip (thread), by Cambridge and Paul Instrument Company, English, 1923

Origin

England; Cambridge

Maker

Cambridge and Paul Instrument Company Ltd.

Class

electrical

Earliest Date

1923

Latest Date

1923

Inscription Date

Material

wood; glass; metal (iron); plastic (ivorine)

Dimensions

length 480mm; breadth 291mm; height 409mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘THE CAMBRIDGE AND PAUL INSTRUMENT CO. LTD. ENGLAND. C 32778’ (on front of frame)
‘THE CAMBRIDGE AND PAUL
INSTRUMENT CO. LTD.
LONDON & CAMBRIDGE.
C 32778’ (on ivorine plate on door)

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; two threads; two channels; lower clockwork rotates chart drum once per 25 hr. (or 2 hr. 5 min.); linear scales above pointer, -10 to 60 degrees Fahrenheit; plug and terminal boards for each channel below box; exchangeable resistance coil.
Similar to Wh: 4366.

Condition: fair (both galvanometer suspensions intact, both threads off pulleys); incomplete (two retaining screws missing).

References

Events