I tried to do a relatively quick search of the Patent number "1511925" which is expired. Since all the patent records I could find on the web don't list them by number, but only by applicant (company and/or inventor), best I could do is tag the patent number being issued sometime in the early to mid-1920s.

It's definitely supposed to ratchet, so mechanism is probably just seized up.


~ Dan
1951 Chevy 3 window 3100
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