Accession No

1319

Brief Description

induction coil, by Heinrich Daniel Ruhmkorff, French, 1860 (c)

Origin

France; Paris

Maker

Ruhmkorff, Heinrich Daniel

Class

electrical

Earliest Date

1860

Latest Date

1860

Inscription Date

Material

wood; metal (brass, copper); glass; ivory

Dimensions

length 525mm; breadth 225mm; height 180mm

Special Collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge.

Inscription

Ruhmkorff, a Paris (copper strip on base)

Description Notes

Rectangular wooden box containing capacitor; two brass terminals for primary coil; two additional terminals across interruptor; three-position brass and ivory commutator switch; copper strip electrical connectors; two brass terminals for secondary coil, on glass posts 50mm high, 50mm apart; coils held in place with heavy copper wire over circular end-pieces; copper electromagnetic interruptor bar, with brass screw adjustment.

Incomplete (foot missing)

References

Events