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Telegraph Switch - Reversing, late 19th Century Object Reg. No: ST 028633

A switch used for reversing small currents in telegraphy. Used at Melbourne Observatory.
Wooden base carrying two fixed and two pivoted brass connecting strips. Two pivoting strips are controlled by tension springs. Base also carries a pivoted brass switching lever fitted with an ebonite knob. Switching lever operates against one or other of the spring-loaded connecting strips to make or break either of two circuits. Three brass screw terminals for circuit connections.
Acquisition Information:
Transfer from Melbourne Observatory, 1945
Discipline: Technology
Dimensions: 55 mm (Height), 70 mm (Width), 118 mm (Length)

More information

Tagged with: electrical switches, telegraphy
Themes this item is part of: Telegraphy Collection, Melbourne Observatory Collection, Information & Communication Collection, Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Melbourne Observatory & Standard Time in Victoria, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Melbourne Observatory, 1863-1944, Geodetic Survey of Victoria, 1858-1872
Primary Classification: COMMUNICATIONS
Secondary Classification: Telegraphy
Tertiary Classification: components
Inscriptions: Marked in white paint on top of wooden base:
User: Melbourne Observatory, South Yarra, Victoria, Australia

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