Accession No

3778

Brief Description

electrostatic machine, 1800-1850 (c)

Origin

Maker

Class

electrical; demonstration

Earliest Date

1800

Latest Date

1850

Inscription Date

Material

wood (mahogany, other); metal (brass, steel); glass; hide (leather); hair

Dimensions

length 960mm; breadth 448mm; height 625mm

Special Collection

Provenance

Inscription

Description Notes

Mahogany base with shaped wooden frame surmounted by brass ball, supporting steel axle, crank and turning handle; glass disk (broken) clamped to axle by leather and brass washers. Frame carrying two pairs of removable oval-shaped red leather friction pads, stuffed with horse hair, mounted on wood and numbered in pencil on the back. Four glass columns, with brass fittings, supporting two cylindrical brass conductors; the joints and terminals of the framework thus formed are marked by brass spheres.

References

Events