https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=76681&pn=138,405 Car-Couplings Patentee: Eli H. Janney - Alexandria, Alexandria County VA Granted:1873-04-29

This was the first hook and catch railroad car coupler designed to replace link and pin types. Abstract: This invention consists mainly in the combination of the hook and catch with a guard- arm, and in certain details of construction. Claim: The combination in a car-coupling, of a rotary hook B, guard-arm at, and automatic catch-lever C.
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