Cylinder electrostatic machine with Leyden jar, about 1790, with components

Made:
1790-1795 in London
maker:
George Adams
Cylinder electrostatic machine for medical use, made by G Cylinder electrostatic machine for medical use, made by G

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

Buy this image as a print 

Buy

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

License

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

Buy this image as a print 

Buy

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

License

Cylinder electrostatic machine for medical use, made by G
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Cylinder electrostatic machine for medical use, made by G
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Cylinder electrostatic machine for medical use, made by G. Adams, Fleet Street, London, 1792, with T-shaped prime conductor, discharging (Lane) electrometer for prime conductor, glass-legged stool, Leyden jar, discharger with glass handle, large and small brass clamps, small double Leyden jar, and miscellaneous other parts including broken remnants. It was owned and used by Dr George Fletcher, M.D., who practiced for 42 years at Chesterfield, and was given to the Museum by his youngest and last surviving child, Mrs. Mary Anne Nodder, in 1889.

Details

Category:
Electricity and Magnetism
Object Number:
1889-29
Materials:
brass, glass and metal
Measurements:
displayed dimensions: 500 x 770 x 680 mm
type:
cylinder electrostatic machines and friction electrostatic machines
credit:
Mrs M. A. Nodder.

Parts

Glass cylinder electrostatic machine on wooden base

Glass cylinder electrostatic machine on wooden base

Glass cylinder electrostatic machine on wooden (probably mahogany) base with rubbing pad on glass support and wooden handle

Materials:
glass and mahogany (wood)
Object Number:
1889-29 Pt1
type:
cylinder
Insulating stool, wooden top on glass legs

Insulating stool, wooden top on glass legs

Insulating stool, wooden top (probably mahogany) on glass legs. In remarkably good shape.

Measurements:
overall: 160 x 365 x 225 mm
Materials:
mahogany (wood) and glass
Object Number:
1889-29 Pt4
type:
stools
Discharger, glass handle,brass rod, ball ended

Discharger, glass handle,brass rod, ball ended

Discharger, glass handle with straight brass rod ending in brass ball

Measurements:
overall: 313 x 32 mm
Materials:
glass and brass
Object Number:
1889-29 Pt5
type:
discharger
Brass clamp for cylinder electrostatic machine

Brass clamp for cylinder electrostatic machine

Large brass clamp

Measurements:
overall: 205 x 115 x 18 mm
Materials:
brass (copper, zinc alloy)
Object Number:
1889-29 Pt6
type:
clamps
Discharging Lane electrometer for fitting to prime conductor

Discharging Lane electrometer for fitting to prime conductor

Discharging Lane electrometer for fitting to prime conductor. Mounts into a small hole on the top. The balls and the rod between them are not original, but were made in 1955 to complete the unit.

Measurements:
overall: 180 x 90 x 25 mm
Object Number:
1889-29 Pt7
type:
electrometers
Double Leyden jar (two small jars joined )

Double Leyden jar (two small jars joined )

Double Leyden jar (two small Leyden jars that can be joined base to base)

Measurements:
overall: 298 x 27 mm
Object Number:
1889-29 Pt9
type:
leyden jars
Base from discharging electrometer

Base from discharging electrometer

Remnants from broken Leyden jar, including its discharging electrometer (the jar that broke, according to the tech file sometime before 1953, was the larger medical bottle in the early photos), and miscellaneous small parts including containers for amalgam (some with amalgam inside), empty glass bottle formerly holding mercury, wire on spools, two pieces of wire that may be part of smaller Leyden ...

Object Number:
1889-29 Pt12
type:
electrometers
Glass curved discharger

Glass curved discharger

Glass curved discharger, from cylinder electrostatic machine for medical use, made by G. Adams, Fleet Street, London, 1792

Materials:
glass
Object Number:
1889-29 Pt13
type:
discharger
Chain from accessories for cylinder electrostatic machine

Chain from accessories for cylinder electrostatic machine

Long chain from accessories for cylinder electrostatic machine for medical use, made by G. Adams, Fleet Street, London, 1792

Materials:
metal
Object Number:
1889-29 Pt14
type:
chain
Short chain from accessories for cylinder electrostatic machine for medical use

Short chain from accessories for cylinder electrostatic machine for medical use

Short chain from accessories for cylinder electrostatic machine for medical use, made by G. Adams, Fleet Street, London, 1792

Materials:
metal
Object Number:
1889-29 Pt15
type:
chain