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David Thomas Charles
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Individual
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Individual
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25,410. Charles, D. T. Nov. 21. Couplings, non-autmatic, for colliery corves and trams. The shackle pin 4 has a flattened shoulder 5 and a stud 6 engaging with the slot 7 in the shackle. To open the coupling, the pin is raised until the shoulder is cleared from the bracket 3 and the stud raised from the slot, after which the pin may be rotated and further lifted until the coupling is completely open.
GB190325410D1903-11-211903-11-21Improvements in Couplings for Colliery Trams or Corves.
ExpiredGB190325410A
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