Welcome to our world of Locks and Locksmiths (click logo or scroll down to view all):-

Or are you looking for modern, or recent past,
Keys, Locks or Safes.
keys, locks & safes
Industrial Archaeology of Locks History of Locks Museum
Please support the HoL Museum Shop where you can.
Researching locks from antiquity to the recent past.Maintaining a reference collection & archive.
Page 3 of 3 FirstFirst 123
Results 21 to 22 of 22
  1. #21
    Join Date
    Oct 2009
    Cleveland, Ohio USA
    Country: United States


    I hate when I continue to misinformation on locks. I have looked further into Kromer and found he has 2 US lock patents from the early 1870's. This does help support the fact he was here but his locks were nothing like later Kromer locks, the non- changeable (Pork Pie LOL) Protector and Novum or the Convar, which is the modern changeable lock starting this post. I haven't thoroughly read the patents but they used push keys much like the William Hall designed Herring Grasshopper keys. So Chatwoods lock may be the first key lock to use that particular method of geared levers mated to gear wheels containing the gates. Doug

  2. #22
    Join Date
    Jul 2014
    Country: Germany


    The Convar was not in the Kromer catalog from 1911 (AFAIR). I think there were no key changeable locks at that time. Don't know when it appeared. Perhaps after WWII.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts