Accession No

4455

Brief Description

apparatus to demonstrate force on a conductor balance, Weston Electrical Instruments Co., 1905-1919 (c)

Origin

Maker

Western Electrical Company

Class

electrical; demonstration

Earliest Date

1905

Latest Date

1915

Inscription Date

Material

metal; glass; wood (not at 11-1-2000)

Dimensions

diameter 184mm; depth 120mm

Special Collection

Provenance

Transferred from the Department of Engineering, University of Cambridge, in 1993.

Inscription

‘ECLIPSE AMMETER
WESTON ELECTRICAL INSTRUMENTS Co.,
NEWARK, N.J., U.S.A.’ (front)
‘ENG LAB CAMB UNIV’ (front)
‘15473
15323’ (on scale)
‘PATENTED ... 95 ... 98 ... MODEL 159 NO 15323’ (plate)
‘6 APR 1923’ (stamp on paper label on base)
‘WEICO
3698-A’ (on base)
‘LONDON INSTRUMENT CO. LTD.
NEWHAM HILL
CAMBRIDGE, ENGLAND’ (on plug) (not found, 11-1-2000)

Description Notes

Pointer ammeter, cylindrical metal casing with glazed aperture, printed non-linear scale, 0-50 by 1 (1-10 not divided); mounted on wooden stand. Attached lead and plug.
Base has a paper label on it, dated 6-4-1923. Two metal screws extend from the bottom; one has a nut on it.
Wooden mount, lead and plug not attached, or found loose; 11-1-2000.

Condition: good; complete.

References

Events