Accession No

1422

Brief Description

induction coil, by Apps, English, 1890-1900 (c)

Origin

England; London; 433 Strand

Maker

Apps

Class

electrical

Earliest Date

1890

Latest Date

1900

Inscription Date

Material

wood; metal

Dimensions

box length 684mm; breadth 330mm; height 352mm

Special Collection

Provenance

Donated in 1963.

Inscription

‘APPS
433 STRAND
LONDON.
PATD. 1881-264.
No. 1069’ (on ivorine plate set into base)
‘E 40’ (on ivorine disk on base (added))

Description Notes

Rectangular wooden base containing capacitor; four pairs of brass terminals (two with shorting rods); three-position ivory and brass commutator switch; discharge rods with ivory and ebonite handles mounted on two ebonite pillars; primary and secondary coils mounted on two ebonite standards (one etched: ‘10 VOLTS’) and covered with ebonite sheet; oscillating Nieff hammer contact interrupter, with adjustment screws mounted on brass pillar.

Condition: fine; complete.

References

Events