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

Summary:
A switch used for reversing small currents in telegraphy. Used at Melbourne Observatory.
Description:
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:
'349'
User: Melbourne Observatory, South Yarra, Victoria, Australia

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