Accession No

3248

Brief Description

moving coil, pointer ammeter, Weston Elec. Inst. Co., 1898 (c)

Origin

Newark; N.J.; U.S.A.

Maker

Weston Electric Instrument Co. Ltd

Class

electrical

Earliest Date

1898

Latest Date

1898

Inscription Date

Material

metal (brass, other); glass; wood; hide (leather)

Dimensions

box length 235mm; breadth 171mm; height 98mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 1985. Cambridge University Observatories

Inscription

‘WESTON’S
DIRECT-READING
AM-METER’ (on dial)
‘WESTON’S ELECTRICAL INSTRUMENT CO.
NEWARK, N.J., U.S.A.
PATENTED NOV. 6TH. 1988
No.
3503’ (on metal plate below dial)

Description Notes

Reddish metal case on wooden base; two brass terminals, one marked ‘+’; glazed window showing mirror and white dial; hand-printed scale, 0 to 1.5 divisions; circular window below dial showing pivoted coil; metal plate with list of patents on front edge of case; two terminals on right-hand side of case. In wooden carrying case with leather handle.

Condition: good; complete.

References

Events