1885 - US315613 LOCK MECHANISM FOR SAFES (Jamb Combination) by Henry Gross
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1885 - US315613 LOCK MECHANISM FOR SAFES (Jamb Combination) by Henry Gross
Looking over the impressive list of patents, I could not gain any insight to answer the two questions: on the relevant emergency doors, which set of lugs rotates, and how does the mechanism couple the door-mounted time locks and the frame-mounted combination locks.
I was amused by the patent for a vault that will float when the ship sinks!
1889 – US402587 MEANS FOR CONNECTING SPINDLES TO THE WALLS OR DOORS OF SAFES (Jamb Combination) by Henry Gross