Welcome to our world of Locks and Locksmiths (click logo or scroll down to view all):-
 www.Antique-Locks.com 
  
HoL
   COLTi
Or are you looking for modern, or recent past,
Keys, Locks or Safes.
keys, locks & safes
Industrial Archaeology of Locks HoL Museum
COLTi
  
Please support our forum sponsors where you can.
Researching locks from antiquity to the recent past.Maintaining a reference collection & archive.Today's scene and cutting edge developments.
Results 1 to 10 of 10
  1. #1
    Join Date
    May 2016
    Posts
    66
    Country: Canada

    Default New shackle on old Yale PKPT padlock

    I picked up this old Yale PKPT padlock recently and was surprised by what I found.
    It looks like a new taller shackle was made and attached to the lock.
    The new shackle is made from steel and there is a small gap where it is attached to the old shackle assembly. (see photo with a shim placed in the gap) There are what appear to be file marks on this new shackle.
    I donít know how the new shackle is attached. I hesitate to try to remove the new shackle as I am afraid that it may cause permanent damage.

    Anyone have any thoughts on this or why anyone would go to the trouble of doing this?

    I have attached photos to try to show this.
    Note: The collet ( is that the correct name for it) that houses the shackle on the other side has been loosened
    Attached Thumbnails Attached Thumbnails yale pkpt.jpg   yale pkpt2.jpg   yale pkpt3.jpg   yale pkpt5.jpg   yale pkpt7.jpg  


  2. #2
    Join Date
    Jan 2013
    Posts
    561
    Country: United States

    Default New shackle on old Yale PKPT padlock

    I think I has seen some of that Yale Padlock with Long Shackle. The way I look at your padlock someone may have try to take it apart. Yes they do come apart but don't think can explain it on this forum. If you are not a locksmith it would be better not to take apart as piece will fly all over. When you put the key in the cylinder and push in the cylinder and shackle come up and turn to open....Timothy....

  3. #3
    Join Date
    Dec 2007
    Location
    Odell Ne
    Posts
    580
    Country: United States

    Default

    Why they did this, I have no idea. However, on some of my PKPT padlocks the shackle is threaded into the lock cylinder and held in position by the square key that locates the cylinder in the lock housing. You can see the square key end just below the brass collar of the cylinder. You can grip it with a vice grip and pull it out, allowing the two pieces to unscrew from each other. Was you lock open when you got it or did you pick/shim it open ? If it was open, is there spring tension trying to pull the shackle down ? The cap under the open end of the shackle, if unscrewed will loosen the tension on the spring which pulls the shackle down. Hope this helps, Mark
    Mark A. Billesbach

  4. #4
    Join Date
    May 2016
    Posts
    66
    Country: Canada

    Default

    Thanks for the replies.
    My lock was in the locked position when I got it and I shimmed it open.
    I loosed the cap under the open end of the shackle with the aim of dismantling the lock and making a new key when my blanks arrive.

  5. #5
    Join Date
    Dec 2007
    Location
    Odell Ne
    Posts
    580
    Country: United States

    Default

    If you have never taken one of these apart before, or for others who never have, you'll have to completely remove the brass cap and then slide the spring back to clear the groove cut into the lock cylinder, which keeps the cylinder in the lock body. Be careful when reassembling the lock and putting the spring back into place. The bottom of the brass cap has a pin which goes through a hole in the spring end. If you try to tighten the brass cap without the pin in the hole, the spring can break.
    Mark A. Billesbach

  6. #6
    Join Date
    Dec 2007
    Location
    Odell Ne
    Posts
    580
    Country: United States

    Default

    Looking at your padlock, I'm not so sure it's not a factory shackle. That body design is of the later model and when Yale went to the serrated key from the flat key, the shackles went round instead of the flat sided brass. Granted the only round ones I've seen were brass, doesn't mean the factory didn't experiment and produce some in steel. I actually have a older design body with the trefoil design that has the serrated key and cylinder, which makes me think that Yale used up old parts,incorporating them into new locks rather than discarding them.
    Mark A. Billesbach

  7. #7
    Join Date
    Jan 2013
    Posts
    561
    Country: United States

    Default New shackle on old Yale PKPT padlock

    Can you post picture of cylinder.

    Oldbiscuit was right about how to take it apart.

    I'm sure have seen that padlock with long shackle. I think it was on eBay.....Timothy...

  8. #8
    Join Date
    May 2016
    Posts
    66
    Country: Canada

    Default

    The keyway on this lock is not the serrated type but rather takes a the flat steel key.

    What do you make of the marks that I thought were file marks on the shackle? They are mostly on both sides of the shackle, the inside is smooth and the outside they are worn away by a linear abrasion. Are they file marks or could they have been caused by a chain or something else rubbing on the shackle? (see photo)
    Attached Thumbnails Attached Thumbnails yale pkpt10.jpg  

  9. #9
    Join Date
    Jan 2013
    Posts
    561
    Country: United States

    Default New shackle on old Yale PKPT padlock

    The way it look to me like someone using wire brush on machine. Could be cleaning the shackle off from rust or whatever other crap on the shackle....Timothy.....

  10. #10
    Join Date
    Nov 2013
    Location
    california
    Posts
    206
    Country: United States

    Default

    Are you sure these marks are not stress related from bending the brass to form the shackle ?

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
  •