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12 visible archived posts · 12 preserved total · topic ID 2688

Atame 17 Aug 2008

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0250951520

I don't believe that it's really a leg iron.

Best regards,
Guenter

Steve Santini 17 Aug 2008

A bicycle lock produced by an American padlock maker in the 1940's.

It takes a double bit wafer lock key and you must use the key to lock it and unlock it.

I believe it is made by the Junkunc Bros Lock Co which was located in Chicage, Ill.

Steve Santini

Steve Santini 17 Aug 2008

The number on the back of the lock case is the key code.

Steve Santini

Ron Spitz 17 Aug 2008

They also made one with a chain.

Ron

atlanta*casting 17 Aug 2008

more likely an old spare tire lock from back in the model T or spoked wheel days.

pretty expensive looking lock for a bicycle.

Steve Santini 17 Aug 2008

"Die-casting became popular in the early 1930s among lock makers. Not only was it a very inexpensive way to make padlocks, but it allowed designers to design padlocks with a broad range of geometrical features and ornate designs that sand casting and machining wouldnt allow. Some lock makers, like Junkunc Brothers, augmented their machined solid body padlock products with the less expensive and more attractive die-cast bodied padlocks."

I have the maker right because I have seen this lock marked with their name.

The period I also mentioned is correct.

Too late for the Model T.

In fact, when I was 15 and working for a locksmith I personally saw him cut a key by code to one of these very locks.

And, a few years back I was offered one with the claim it was a "neck collar" for humans.

Nope.

I am very familiar with them.

Steve Santini

atlanta*casting 17 Aug 2008

http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0249673740

Probably about the same size diameter as your bicycle lock..

Unresolved image reference ↗

Steve Santini 17 Aug 2008

Not the same manufacturer or model.

Further, your example is adjustable.

Steve Santini

P.S. There is a strong possibility that the lock that was inquired about is in fact a motorcycle lock but I am not certain.

I do know there were some pretty heavy duty bicycle locks made.

Certainly many were weak and cheap but not all.

The Amazing Michael 18 Aug 2008

Steve is 100% correct. I have had a few of these come through my old locksmith shop many years ago and I have had the pleasure of playing around with them and making keys for them as well. The code does little good because the cuts are not done like normal keys.....the code book only offers a picture of what the key should look like, not a set of depth and spacing numbers.

Cheers, Mike

Anonymous 18 Aug 2008

#10

These use a serpentine key. Normal locks have 5 wafer tumblers seperated by empty spaces that contact one edge of the key. This lock uses 11 wafer tumblers side by side on alternating edges of the key.

Atame 18 Aug 2008

#11

Thanks to everyone for the answers!

Guenter

Don 18 Aug 2008

#12

the Basco on the key means its a Briggs and Stratton Item