Telegraph block instrument (absolute/permissive)
This image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseTelegraph block instrument (absolute/permissive)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument (absolute/permissive)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument (absolute/permissive)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument; LMS (LNWR Fletcher's Style No. 4269). Combined 2-needle permissive pegging/non-pegging 3-position/3-indication. Has circular bakelite-commutator/permissive tell-tale window set in a large brass disc, and at RHS a permissive plunger and blockbell-tapper at bottom RHS (door), with underslung bell-dome. To top window-door RHS, there are 2 embossed-metal 'Absolute/Permissive' flaps, 1 for each needle. Claimed ex BR-Clapham.
Details
- Category:
- Signalling & Telecommunications
- Object Number:
- 1994-7129
- credit:
- British Rail, Clapham
