Multiple Padlock Farm Gate Mechanism - multi-lock-gate-at-islay-creek-road-mont ana-de-oro

    Newer Older

    Multiple Padlock Farm Gate Mechanism -
    Multi-lock gate as seen on Islay Creek Road at Montaña de Oro, Los Osos, CA, on 22 March 2008 during Barbara Renshaw and Jerry Kirkhart's Spring Flower Photo Walk. Photo by Michael "Mike" L. Baird bairdphotos.com, Canon 5D w/ Canon EF 180mm f3.5L Macro USM AutoFocus Telephoto Lens for Canon SLR Cameras on Gitzo GT1540 6X Carbon Fiber Series 1 G-Lock Mountaineer Tripod.

    If you know how this mechanism works please explain in a comment below!

    On Jan 17, 2010, at 8:26 PM, "yawpawranger {at} aol. d o t com" wrote: "Hi Mike, I am a Ranger at a Boy Scout Camp in New Jersey, I saw your pic of the multi-lock-gate-at-islay-creek-road-montan a-de-oro. I was wondering if you had any other pics of this lock or if you knew how it worked. I have a gate with 5 locks on it and I am looking for a better way to set it up as of now the locks are daisy chained. Thanks, Chris Murphy, Ranger Camp Yaw Paw, 201-327-5250"
    A: That is a mystery to me still. I once thought I figured it out, but then I could not reproduce the theory. I did patent research and those systems are not the same. I have gone back and looked at these gates and it is not obvious how it works w/o operating the mechanism and I did not have a key. Please let me know if you figure it out w a comment on the lock pic page!

    1/17/2010 I did another search:
    www.kk.org/streetuse/archives/2008/04/one_gate_multiple_l...


    sharelox.com/Home_Page.html
    sharelox.com/How_they_work.html
    sharelox.com/Video.html (watch both videos)

    The lock I photographed www.flickr.com/photos/mikebaird/2354116406/ does not seem that precise or complicated, but????

    See US Patent 6857299 - Multiple padlock latch

    www.patentstorm.us/patents/6857299.html

    15 Oct. 2010, Joe gets it: "looking at your picture, and that alone, I'll try and describe what I think they have going on..... Inside the tube on the bottom is a round rod. When the rod slides to the left, the gate opens. Slide the rod back to the right, and it's locked(closed). Simple right?? OK, now the tricky part.... The locks are all connected by flat tabs.... but all the tabs are not connected to the rod! Only the tab on the far left is welded to the rod. On the oposite end, the right most tab(hard to see) is welded to the gate. All the other tabs (5 of them) are floating on eyelets around rod (you can't see them). When any of the locks is removed, the "Chain" is broken and the rod can move to the left. Hope this helps -joe"

    LukeSkytoker, FeeBeeDee, and 8 other people added this photo to their favorites.

    1. Jonnysblog 55 months ago | reply

      Great pic Mike, using it on my blog here:
      www.jonnysblog.com/2009/10/28/test-computers-security-par...
      Thanks a lot!

    2. mikebaird 55 months ago | reply

      Jonnysblog Thanks for the Creative Commons use note at How To Test Your Computers Security Part 2 - That's a great image to go w/ your subject. Your link
      Photo by mikebaird on Flickr
      www.jonnysblog.com/2009/10/28/test-computers-security-par...
      actually goes to a 404 error page.
      Ideally it would link to your comment here
      but if it is a pain to change I'm not obsessing over it.
      Please come back and use more images Jonny!
      www.flickr.com/photos/mikebaird/2354116406/#comment721576...

    3. Jonnysblog 54 months ago | reply

      Whoops thanks for that Mike! Silly of me.... updated and should be working now...good spot, thanks again and will keep an eye on your photos!

    4. with the sound of music 50 months ago | reply

      Wow, big time "keep out" inference!
      Later...Ah, I understand now - it is for multiple users.....not multiple reinforcement.

    5. jfuess 43 months ago | reply

      looking at your picture, and that alone, I'll try and describe what I think they have going on..... Inside the tube on the bottom is a round rod. When the rod slides to the left, the gate opens. Slide the rod back to the right, and it's locked(closed). Simple right?? OK, now the tricky part.... The locks are all connected by flat tabs.... but all the tabs are not connected to the rod! Only the tab on the far left is welded to the rod. On the oposite end, the right most tab(hard to see) is welded to the gate. All the other tabs (5 of them) are floating on eyelets around rod (you can't see them). When any of the locks is removed, the "Chain" is broken and the rod can move to the left. Hope this helps -joe

    6. mikebaird 43 months ago | reply

      Joe, thanks for the first and correct description of how the locks and their tabs form a chain, breaking any link of which, effectively allows the gate to be opened. ref. www.flickr.com/photos/mikebaird/2354116406/

    keyboard shortcuts: previous photo next photo L view in light box F favorite < scroll film strip left > scroll film strip right ? show all shortcuts