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Thill-Coupling.
Patent for an improved thill coupling, one meant to "prevent the annoyance of nuts coming off, allowing the thill to come out of place" (lines 55-57). "It is also for the purpose of facilitating the changing of a pair of shafts for a tongue or a tongue for shafts" (lines 59-61).
Date:
June 8, 1897
Creator:
Kitching, David C.
System:
The Portal to Texas History