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Description: | This is the quick make and break switch. The contact bar is actuated by a spring which is wound up in either direction by the movement of the handle. A further movement releases a catch allowing the bar to spring into either the 'on' or 'off' position.
Part: base, Material: stone, slate
Part: cover, Material: metal, copper alloy, brass | Source: | Tyne & Wear Archives & Museums | Identifier: | emu.ecatalogue.science&industry.482459 | Go to resource |
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4138
Breguet, Paris, c.1827 No.4138
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