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Author Topic: Lock reshape  (Read 5438 times)

Offline Dphariss

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Lock reshape
« on: July 27, 2011, 09:16:57 PM »
Davis "Twigg" changed to a bigger flat plate lock.




This is to convert a friends heavy bench rifle to flint.

Had a huge percussion lock that was made by the rifles original stocker. Nothing available would fit.
I had to weld all the beveled edges. Still needs a little more clean up.
Sparks like the dickens.
Dan
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Offline alyce-james

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Re: Lock reshape
« Reply #1 on: July 27, 2011, 11:50:26 PM »
Nice job Sir. Looks real good. AJ
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Offline D. Taylor Sapergia

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Re: Lock reshape
« Reply #2 on: July 28, 2011, 03:37:15 AM »
What did you use for a mainspring, Dan?  My Twigg lock has a real buggy-whip spring that does not generate much power.
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Offline Dphariss

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Re: Lock reshape
« Reply #3 on: July 28, 2011, 06:26:24 AM »
Quote from: D. Taylor Sapergia on July 28, 2011, 03:37:15 AM
What did you use for a mainspring, Dan?  My Twigg lock has a real buggy-whip spring that does not generate much power.

Both springs are pretty weak and I may re-arch both before delivery. But it does spark good with the French flint. But bet its s-l-o-w. Due to lack of power.
Not a factor so much on a dedicated bench gun. Barrel is a Bill Large "drilled by Douglas" that has since been recut. Breech and flat around the drum looks like it was shot with corrosive replica powder. Might be why it was recut.

This worked so well I may use it on some other projects.
Dan
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Offline Curtis

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Re: Lock reshape
« Reply #4 on: July 28, 2011, 08:24:14 PM »
Dan - Great post.  Just showing that being done opens a whole plethora of possibilities to my mind.

Oh, and nicely done as well, looks good.

Curtis
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Curtis Allinson
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Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing

SPG

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Re: Lock reshape
« Reply #5 on: July 28, 2011, 09:06:32 PM »
Dan,

Great job...I'm sure the Reverend will be pleased. However...have you considered that you may be making a rod for our collective backs?

Steve
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Offline Dphariss

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Re: Lock reshape
« Reply #6 on: July 28, 2011, 09:28:26 PM »
Quote from: SPG on July 28, 2011, 09:06:32 PM
Dan,

Great job...I'm sure the Reverend will be pleased. However...have you considered that you may be making a rod for our collective backs?

Steve

If our barrels show up it should be OK or I could keep it in the shop till the range freezes again.
Dan
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Offline Dphariss

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Re: Lock reshape
« Reply #7 on: August 05, 2011, 07:40:36 AM »
Quote from: D. Taylor Sapergia on July 28, 2011, 03:37:15 AM
What did you use for a mainspring, Dan?  My Twigg lock has a real buggy-whip spring that does not generate much power.

Just as a follow up I rearched and rehardened the MS in oil and ran it through a saltpeter bath twice just to be sure to pale blue and it broke about 5 minutes after I put it in the lock. Sparked it a few times then I put it on full cock to put a MS vise on it to remove to harden the plate  around the tumbler and just as I got the vise set in place it broke the extension off that bears on the bottom of the bolster. Nice fine grained at the break maybe I did not get that area hot enough in the bath ??? Have to be careful not to overheat the thinner sections when doing this so the part gets put in thicker areas first.
So I ordered another one from Track.
Don't happen very often... Too lazy to make one, will see how the replacement works.
I detest flabby springs.
Trying to get something at least started to show at the guild fair too. Trying to press full length brass forend panels for a swivel breech.
Dan
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Offline okieboy

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Re: Lock reshape
« Reply #8 on: August 06, 2011, 10:56:59 PM »
 Great post. Really opens up some possibilities.
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Okieboy

Daryl

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Re: Lock reshape
« Reply #9 on: August 07, 2011, 12:11:10 AM »
Sure is an eye opener- nice welding on those difficult bevels too.
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Offline Dphariss

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Re: Lock reshape
« Reply #10 on: August 07, 2011, 05:25:39 AM »
Quote from: Daryl on August 07, 2011, 12:11:10 AM
Sure is an eye opener- nice welding on those difficult bevels too.

Its a Hobart "Handler 135" MIG welder and if I run it right it does darned good work with gas shielding.
With flux wire its only good for welding on things like trailers outdoors.
It won't do really fine work like a TIG but its also WAY cheaper.

Dan
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