Two examples of Spratt's lightning conductors

Made:
1860
Two examples of Spratt's lightning conductors

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Two examples of Spratt's lightning conductors, 1860

Details

Category:
Geophysics
Object Number:
1893-131
type:
conductor
credit:
Symons, G.J.

Parts

Spratt’s Patent Copper Lightning Conductor

Woven copper lightning conductor. Made by James Spratt in London around 1860.

More

Benjamin Franklin invented the lightning rod in 1749. In 1860, electrician James Spratt patented his innovative woven copper lightning conductor which represented an advance in safety.

Spratt is perhaps better known as the first manufacturer of dog biscuits. He employed Charles Cruft, who went on to establish Crufts, the world-famous show for dog breeders.

Measurements:
overall: 3 mm x 130 mm x 23 mm,
Materials:
copper (metal)
Object Number:
1893-131 Pt1
type:
lightning rods
Image ©
The Board of Trustees of the Science Museum

Spratt’s Patent Lightning Conductor

Encased copper lightning conductor. Made by James Spratt in London around 1860.

More

Benjamin Franklin invented the lightning rod in 1749. In 1860, electrician James Spratt patented his innovative woven copper lightning conductor which represented an advance in safety.

Spratt is perhaps better known as the first manufacturer of dog biscuits. He employed Charles Cruft, who went on to establish Crufts, the world-famous show for dog breeders.

Measurements:
overall: 15 mm x 110 mm x 20 mm,
Materials:
copper (metal) and lead (metal)
Object Number:
1893-131 Pt2
type:
lightning rods
Image ©
The Board of Trustees of the Science Museum