Accession No

4373

Brief Description

circular chart recorder or disk recorder, recording pyrometer, by Foster Instrument Company, English, 1920-1930 (c)

Origin

England; Hertfordshire; Letchworth

Maker

Foster Instrument Company

Class

electrical

Earliest Date

1920

Latest Date

1930

Inscription Date

Material

wood; glass; metal

Dimensions

height 550mm; breadth 345mm; depth 130mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘THE GREENWICH
RECORDING PYROMETER
SERIAL No. 16458 TYPE 10
BUCKLEY’S LTD.
SMETHWICK BIRMINGHAM’ (on plate on door)
‘FOSTER INSTRUMENT CO.
LETCHWORTH, HERTS. ENGLAND
TYPE No. 1382X SER. No. 16458...’ (on plate on door)

Description Notes

Flat, rectangular wooden box for wall mounting; hinged and locking door; two terminals on front edge of box; pivoted galvanometer movement in small wooden case (sealed); long galvanometer pointer extends to circular recorder turntable; two clockworks rotate table, and operate bar which alternately depresses pointer over ink pad and then over paper to produce dot record; two winding shafts, and on-off lever for clockworks. With ink bottle, thermocouple wire, instruction sheets, and Certificate of Test, dated 23-7-1929.
Similar to Wh: 4372.

Condition: good (galvanometer pivot intact, clockworks operational, glass in door cracked); complete.

References

Events