Accession No

1342

Brief Description

recorder, strip (Callendar), by Cambridge Scientific Instrument Company Ltd., English, 1913

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1913

Latest Date

1913

Inscription Date

Material

glass; wood; metal

Dimensions

height 745mm; breadth 412mm; depth 210mm

Special Collection

Provenance

Originally installed at the Orb Works, owned by John Lysaght, Newport, for the temperature control of annealing steel sheets. Used in service until 1951.

Inscription

‘THE CAMBRIDGE SCIENTIFIC INSTRUMENT CO. LTD.
CAMBRIDGE ENGLAND.
No. 454
CALLENDAR’S PATENT.
U.K. 16718 1897.
U.S.A. 624674 1900.’ (on front of frame)

Description Notes

Upright rectangular wooden box for wall mounting; hinged, locking, glazed door; instrument, considered in three horizontal sections: upper, including suspended coil D’Arsonval galvanometer, contacts operated by galvanometer pointer, and clock mechanism to polish contact surfaces; centrre, including two clock mechanisms (to drive the pen and slide-wire contact to left and right, respectively) whose brakes are released by the signals from the galvanometer relays, and the recording-paper drum, with continuous-roll paper recording mechanism; lower, including two pairs of electrical input terminals (marked ‘C’ and ‘P’), switches, and resistance coils. Printed note fitted to inside bottom of case, under plastic: ‘THIS RECORDING RESISTANCE PYROMETER / was presented by / THE STEEL COMPANY OF WALES LIMITED, / ...’ .
Similar to Wh: 4351.

Condition: good (galvanometer suspension and wiring broken); complete.

References

Events