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Category
Collection
Object type
Maker
Place
Date
Copy of Amperes commutator

Copy of Amperes commutator

1877
Ruhmkorff commutator

Ruhmkorff commutator

1872
Bertin commutator

Bertin commutator

1886
Thomson commutator motor meter

Thomson commutator motor meter

Clarke's commutator

Clarke's commutator

1836-1851
Double tongue commutator used by Wheatstone

Double tongue commutator used by Wheatstone

1861
Ruhmkorff commutator

Ruhmkorff commutator

Smith's mercurial commutator

Smith's mercurial commutator

1902
Ruhmkorff commutator

Ruhmkorff commutator

Double wheel commutator

Double wheel commutator

Line commutator with 12 plugs (G N T Model 758)

Line commutator with 12 plugs (G N T Model 758)

Two Pohl commutators (see 2 stroke nos).

Two Pohl commutators (see 2 stroke nos).

1872
Commutator, Pohl type, by Philip Harris and Co. (1913) Limited

Commutator, Pohl type

1920-1943
Hand commutator, (for use with apparatus made by Walter Bailey, to show Arago's motion 1923-318)

Hand commutator

1879
One circular commutator. has numbers 1 - 10 written on side. Manufacturer unknown

Circular commutator

Bertin commutator by Townson and Mercer, 34 Camomile Street, London EC.

Bertin commutator by Townson and Mercer

1897-1918