Accession No

3326

Brief Description

moving iron, pointer ammeter, by Weston Electrical Instrument Company, 1919 (c)

Origin

U.S.A.; New Jersey; Newark

Maker

Weston Electric Instrument Company Ltd.

Class

electrical

Earliest Date

1919

Latest Date

1919

Inscription Date

1919

Material

wood; glass; hide (leather); plastic (ivorine)

Dimensions

length 200mm; breadth 210mm; height 88mm

Special Collection

Provenance

Transferred from Department of Engineering, University of Cambridge, Cambridge, England, 1986.

Inscription

‘WESTON A.C.MILLIAMMETER
No. 20699’ (on dial)
‘MADE BY THE
WESTON ELECTRICAL INSTRUMENT CO.
NEWARK, N.J., U.S.A.
PATENTED
...
MODEL 155 No. 20699’ ( on metal plate below window)
‘PRESENTED TO
MR. ALBERT CAMPBELL
BY THE STAFF OF THE N.P.L.
27TH MARCH 1919’ (on ivorine plate below window (added))
‘C230’ (on wooden box (added))

Description Notes

In wooden box with glazed window showing white dial and mirror; non-linear scale, 0 to 75 divisions; zero adjustment screw below window; two plated terminals on top side of box; leather carrying handle on left side.

Condition: good; complete.

References

Events