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Cylinder electrostatic machine complete with friction pad and prime conductor all on one base

1850-1899

Small electrostatic machine by Dollond

1892-1924

Influence electrostatic machine

Frictional electrostatic machine

1780

Wimshurst Electrical Machine

1880-1910

Electrostatic Generator

1895-1905

Electrostatic Generator

1920-1940

Galvani's large plate electrostatic machine

1780-1798

12-Volt Electrostatic Generator

1915-1925

Miniature Wimshurst electrostatic machine

Electrostatic Generator

1845-1855

Electrostatic Generator

1895-1910

Mascart's large universal electrostatic discharger

1864-1930

Electrostatic machine, London, England, 1801-1820

1801-1820

Electrostatic Generator

1920-1940
Frictional cylinder electrostatic machine, with accessories.

Frictional cylinder electrostatic machine

Large cylinder frictional electrical machine, said to have belonged to Benjamin Franklin (1706-1790). Horizontal cylinder turned directly by a simple crank handle. Cushion and prime conductor each originally supported on insulating stands on opposite sides of cylinder, but stand for the cushion is missing. Simple construction, no maker marked, 1760-1790. See part records.

Franklin's electrostatic machine

Influence electrostatic machine designed by Mortimer Codd, c.1938

Influence electrostatic machine designed by Mortimer Codd

1938
Electrostatic machine, wood frame, glass cylinder, metal fittings, by Watkins and Hill, 5 Charing Cross, London, second half 19th century

Electrostatic Machine, 1851-1856

1851-1856
Electrostatic machine, wood base, glass plates, metal fittings, plates broken, by Harvey and Peak of London, second half 19th century, Beak Street

Electrostatic Machine

1884-1891
Voss influence electrostatic machine by H. & E. J. Dale, 26 Ludgate Hill, London, England, c. 1884-1888.

Voss influence electrostatic machine by H. & E. J. Dale

1884-1888
Six-plate Wimshurst electrostatic machine in glazed case and two separate metal rods, by Harvey & Peak, late W.Ladd & Co., 56 Charing Cross Road, London, England, 1891-1909. Fitted with brass plate indicating that it was item 398 on the inventory of the Solar Physics Observatory at South Kensington (plates 36cm diameter).

Six-plate Wimshurst electrostatic machine in glazed case

1891-1909