Table instrument with dial, 1903
- Made:
- 1903 in United Kingdom
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
This image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Table instrument with dial, made by the Clark Automatic Telephone Company, United States, 1903. From automatic interdepartmental telephone switchboard installed at Guy's Hospital, February, 1903.
This is one of the telephones used for internal communication between various departments at Guy's Hospital between 1903 and 1932. Rotating the dial to the number needed wound a spring inside the telephone, which drove a toothed wheel. Electrical impulses were sent for each tooth passed to an electromagnet in a selector switch, which then connected the telephone to the number called.
On display
Science Museum: Information Age Gallery: Exchange
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Related people
Details
- Category:
- Telecommunications
- Object Number:
- 1933-32
- Materials:
- brass (copper, zinc alloy), metal (unknown), plastic (unidentified) and wood (unidentified)
- type:
- telephone
- taxonomy:
-
- component - object
- credit:
- Donated by The Governors of Guy's Hospital
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Data in the title, made, maker and details fields are released under Creative Commons Zero
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