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Lauren's Antique Padlock Restoration

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Lauren

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Post Sun Oct 20, 2013 1:11 am

Lauren's Antique Padlock Restoration

I obtained this nice hatch pattern padlock recently without a key in the locked position. The hasp and the key hole cover showed some nice spring back action, so this lock had promise to be fully intact. With this lock, I wanted to machine an extra special key made from nickle silver bar stock on my drill press. In addition, I wanted to make some tooling that would replicate those nasty concentric top and bottom ward cuts. Here's some of the steps:

Grinding the key head:

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Side view of the barrel hole and key head thickness:

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Key barrel and lighting bolt bit established (NICE!)

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Special homemade cutter for production of the bottom ward (Works great!):

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Using a scribe locked in the drill press to define key head and waste material:

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Special homemade cutter for production of the top ward (WOW!):

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Tools, key and wonderfully working padlock:

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Last edited by Lauren on Sun Oct 20, 2013 1:20 am, edited 1 time in total.
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nozza36

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Post Sun Oct 20, 2013 1:20 am

Re: Lauren's Antique Padlock Restoration

Love your work Lauren , i would like to get my hands on some machining capabilities eventually !
Open Sez Me !
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macgng

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Post Sun Oct 20, 2013 1:51 am

Re: Lauren's Antique Padlock Restoration

great work as always!
Nibbler: The poop-eradication is but one aspect of your importance.
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Oldfast

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OldddffAASSTT the Spin Master Extraordinaire and American Lock Slayer
OldddffAASSTT the Spin Master Extraordinaire and American Lock Slayer

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Post Sun Oct 20, 2013 1:57 am

Re: Lauren's Antique Padlock Restoration

Indeed, indeed! Beautiful outcome. Thanks for sharing some of that journey :yep:
" Enjoy the journey AS MUCH as the destination."
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GWiens2001

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Lock-Goblin-Gordon
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Post Sun Oct 20, 2013 4:12 am

Re: Lauren's Antique Padlock Restoration

A work of art, Lauren. Thank you for a view into how you do some of what you do.

Gordon
Just when you think you've learned it all, that is when you find you haven't learned anything yet.
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MrWizard

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Post Sun Oct 20, 2013 5:53 am

Re: Lauren's Antique Padlock Restoration

Amazing work as always perfect fit.
Don't know anyone else that produces keys from bar stock.
Plus made from material that is hard to work with.
Works of art each and everyone of your keys.

Richard
"Those who believe in telekinetics, raise my hand."
Kurt Vonnegut
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MBI

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Post Sun Oct 20, 2013 6:27 am

Re: Lauren's Antique Padlock Restoration

Thank you for taking the time to show us all these steps in production of a key like that. Looking at a finished one, knowing it's handmade, clearly it took a lot of work, but seeing that sequence of pictures really puts the massive amount of labor involved, into perspective.
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ARF-GEF

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Post Sun Oct 20, 2013 12:41 pm

Re: Lauren's Antique Padlock Restoration

Lauren, that is one great project! :)
To infinity... and beyond!
=== WARNING DANGER OF TYPOS!===
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Equals in plain English: cleaning lady comes: you allow her key in the morning
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rai

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Post Sun Oct 20, 2013 2:47 pm

Re: Lauren's Antique Padlock Restoration

Now you have all that chip scrap to melt and make sand cast keys too. :smile:
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jeffmoss26

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Post Sun Oct 20, 2013 5:19 pm

Re: Lauren's Antique Padlock Restoration

That is awesome. Thanks again for making the key for my coworker's Power Lever padlock. Will take it to him tomorrow!
Innerpicked: The more keys you carry, the more important you look
GWiens2001: Great video! Learned a lot about what fun can be had with a forklift and a chainsaw.
pmaxey83: but i first have to submit the proper forms for a new hobby to my wife
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Lauren

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Post Tue Oct 29, 2013 4:07 am

Re: Lauren's Antique Padlock Restoration

Today, my brand new, uncut Corbin barrel key found its new home. I received a brass Corbin 4-lever padlock today in the locked position. I picked the lock open, decoded the tumblers using the center pin as a reference surface, and I then cut my key on my drill press using a Dremel diamond cutter. I purchased the lock on Ebay for $5.99...what a steal! The padlock works great...

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Lauren

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Post Sun Feb 09, 2014 7:27 pm

Re: Lauren's Antique Padlock Restoration

After the patent expired on various padlocks, certain manufacturers would reproduce the designs. The Ames Sword padlock was no exception. Eagle Lock Co. reproduced the Ames Sword padlock. An Eagle version was obtained without a key in the locked position. In order to reproduce a working key, the lock must first be decoded. The decoding process is a technique called "incremental bit reduction". A double bit key is used, containing only one mirroring bit set at the end of the barrel. The total bit height of both bits is .550 inch. Both bits are equally ground down and tested on all four lever tumbler pairs. When the key can be turned counterclockwise to the 9 O'clock position the total bit height is measured. This information is used to make the final working key. Here's some spec's for making a key blank: Barrel hole drill size= #24 drill bit, barrel diameter= .250 inch, bit thickness= .072 inch, total bit height= .550 inch, bit width= .315 inch. The individual bit widths were obtained by taking .315 divided by 4. Essentially, it takes one decoding key in order to making a working one.

Here's a pictorial view of the process that was used to machine a working key on my drill press once the lock was decoded:

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GWiens2001

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Post Sun Feb 09, 2014 7:39 pm

Re: Lauren's Antique Padlock Restoration

Magnificent work, Lauren! Thank you for the pictures, as well.

Gordon
Just when you think you've learned it all, that is when you find you haven't learned anything yet.
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MrWizard

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Post Sun Feb 09, 2014 8:01 pm

Re: Lauren's Antique Padlock Restoration

Lauren

That is just spectacular almost magical and great pictures. :pimpmofo:

Richard
"Those who believe in telekinetics, raise my hand."
Kurt Vonnegut
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Lauren

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Location: United States

Post Fri Feb 14, 2014 1:19 am

Re: Lauren's Antique Padlock Restoration

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