Plate Electrical Machine

Made:
1770
Plate electrical machine, 1770 Plate electrical machine, 1770 Plate electrical machine, 1770 Plate electrical machine, 1770 Plate electrical machine, 1770 Plate electrical machine, 1770 Plate electrical machine, 1770

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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License this image for commercial use at Science and Society Picture Library

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Plate electrical machine, 1770
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Plate electrical machine, 1770
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Plate electrical machine, maker unknown, c.1770.

This is a relatively early plate electrical machine with a Lane micrometer electrometer. The Lane micrometer is attached to the mahogany base and can be raised or lowered as required. Lane invented this type of electrometer in 1767. It is essentially a micrometer screw which is used to adjust the distance a spark must jump. The conductor has reached a certain potential when the spark jumps a certain distance. This device would have been used in demonstrations concerning static electricity, which were becoming increasingly popular during the eighteenth century.

Details

Category:
King George III
Object Number:
1927-1245
Materials:
brass, glass, mahogany, silk, leather, sealing wax, metal (unknown), lead (metal) and incomplete
Measurements:
overall: 610 mm x 850 mm x 555 mm, 18.36 kg
type:
electrical machines
credit:
King's College, London