Author Topic: Building a set of Cumberland School triggers  (Read 4203 times)

Offline bama

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Building a set of Cumberland School triggers
« on: December 09, 2017, 03:34:38 AM »
Here are a few pictures of the building process of these triggers. I am using my original Thomas Simpson triggers as a model for these triggers. I have temporary screws in the new set of triggers for the main spring screw and the engagement screw.

Jim



















Jim Parker

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Offline SingleMalt

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Re: Building a set of Cumberland School triggers
« Reply #1 on: December 09, 2017, 03:41:21 AM »
That's impressive.  How'd you open the area where the triggers and spring fit?
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n stephenson

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Re: Building a set of Cumberland School triggers
« Reply #2 on: December 09, 2017, 03:44:51 AM »
Very Cool Jim!! Knowing you have that Simpson, is such a teaser!!  The students that take your classes , are learning from a first class teacher. This beautiful trigger set , is but another example of your skills!  Nice Job!  Nate

Offline bama

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Re: Building a set of Cumberland School triggers
« Reply #3 on: December 09, 2017, 03:56:55 AM »
Thanks Nate

SingleMalt, I cheated a little and used my mill to hog out the area where the triggers and main spring goes. The original triggers were made by brazing the ears onto the trigger plate that house the triggers. I thought that milling this area out would be easier but after doing the work I actually believe brazing would be the easier way to go. On the next set I build I will braze them on.

Jim
Jim Parker

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Offline KC

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Re: Building a set of Cumberland School triggers
« Reply #4 on: December 09, 2017, 04:10:36 AM »
That’s a pretty neat project, Jim. It looks like a good bit of hack saw work. Was that big chunk of metal you started with a piece of mild steel?

I’ve been reading Bill Newton’s booklet on triggers and was wanting to give this a try, I’m glad you posted some pictures. I don’t have any antique triggers around to use for templates but I do have a Davis double set trigger kit that would make a good set of templates to copy.
K.C.
K.C. Clem
Bradenton, FL

Offline SingleMalt

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Re: Building a set of Cumberland School triggers
« Reply #5 on: December 09, 2017, 04:18:22 AM »
That makes perfect sense.  I also thought of high temp solder. 
Never drink whisky that isn't old enough to vote.

"The penalty good men pay for indifference to public affairs is to be ruled by evil men."- Plato

"The Constitution shall never be construed to prevent the people of the United States who are peaceable citizens from keeping their own arms."

Offline flinchrocket

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Re: Building a set of Cumberland School triggers
« Reply #6 on: December 09, 2017, 04:27:57 AM »
Those are some nice looking triggers. Great job.
« Last Edit: December 09, 2017, 07:08:47 AM by flinchrocket »

Offline rich pierce

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Re: Building a set of Cumberland School triggers
« Reply #7 on: December 09, 2017, 04:29:30 AM »
Real labor of love.  Nice work!
Andover, Vermont

Offline bama

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Re: Building a set of Cumberland School triggers
« Reply #8 on: December 09, 2017, 04:58:47 AM »
Sorry I didn't give what materials I used. The trigger plate is mild steel, the triggers and main spring are made of 1095 spring steel. I hardened the triggers and main spring tempering the main spring back so it will not break. The front trigger return spring was made from a piece of hack saw blade.
Jim Parker

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Offline Curtis

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Re: Building a set of Cumberland School triggers
« Reply #9 on: December 09, 2017, 05:25:31 AM »
Way cool Jim, you may have inspired me to try and build a set of similar triggers in the not so distant future!   ;D ;D ;D

Curtis
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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

Offline Bob Roller

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Re: Building a set of Cumberland School triggers
« Reply #10 on: December 09, 2017, 04:28:56 PM »
Good looking job.The labor intensive nature of the methods used will keep me in my easy chair most
of the week. An equipped machine shop is not needed if determination is present.

Bob Roller

Offline Mike Brooks

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Re: Building a set of Cumberland School triggers
« Reply #11 on: December 09, 2017, 06:33:40 PM »
OH LORDY! What a lot of work! :o I have been thinking I'll make a trigger set after I retire and don't have to make living doing it. I remember when Myron Carlson used to make set triggers for 40 bucks a pop. Nice job BTW.
NEW WEBSITE! www.mikebrooksflintlocks.com
Say, any of you boys smithies? Or, if not smithies per se, were you otherwise trained in the metallurgic arts before straitened circumstances forced you into a life of aimless wanderin'?

Offline Cory Joe Stewart

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Re: Building a set of Cumberland School triggers
« Reply #12 on: December 09, 2017, 06:48:21 PM »
Very impressive work. 

Offline D. Taylor Sapergia

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Re: Building a set of Cumberland School triggers
« Reply #13 on: December 09, 2017, 07:59:39 PM »
It takes perseverance and a lot of energy to create that set.  Another source for reference is Jim Webb's book on locks and triggers.  I love to see this sort of craftsmanship.
D. Taylor Sapergia
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Offline P.W.Berkuta

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Re: Building a set of Cumberland School triggers
« Reply #14 on: December 09, 2017, 08:12:14 PM »
Thanks Nate

SingleMalt, I cheated a little and used my mill to hog out the area where the triggers and main spring goes. The original triggers were made by brazing the ears onto the trigger plate that house the triggers. I thought that milling this area out would be easier but after doing the work I actually believe brazing would be the easier way to go. On the next set I build I will braze them on.

Jim
Nice job. I silver braze my ears on the trigger plate then dress it to shape. One suggestion when you do the braze thing you want to bend the trigger plate to final shape before you braze the ears on.
"The person who says it cannot be done should not interrupt the person who is doing it." - Chinese proverb

Offline David Rase

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Re: Building a set of Cumberland School triggers
« Reply #15 on: December 09, 2017, 10:29:12 PM »
Way cool Jim, you may have inspired me to try and build a set of similar triggers in the not so distant future!   ;D ;D ;D

Curtis
Curtis,
Great, I will be looking forward to seeing a set of triggers come out of your shop made from a railroad spike.   ::)
Dave

Offline David Rase

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Re: Building a set of Cumberland School triggers
« Reply #16 on: December 09, 2017, 10:30:45 PM »
Jim, I really like how high the rear set trigger is pinned.  I bet it sets with little effort.
David

Offline Tim Crosby

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Re: Building a set of Cumberland School triggers
« Reply #17 on: December 10, 2017, 12:45:37 AM »
 WOW! You get an A+ for sawing & filing, I wish I had that much energy. Give the future something to think about and leave the temp screw :D

  Tim   
« Last Edit: December 10, 2017, 12:48:20 AM by Tim Crosby »

Offline Curtis

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Re: Building a set of Cumberland School triggers
« Reply #18 on: December 10, 2017, 06:44:49 AM »
Curtis,
Great, I will be looking forward to seeing a set of triggers come out of your shop made from a railroad spike.   ::)
Dave

David, I was thinking perhaps along the lines of using a tent peg and an old toaster, utilizing a rusty Swiss Army knife.....  lol!   8)

Curtis
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

Offline David R. Pennington

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Re: Building a set of Cumberland School triggers
« Reply #19 on: December 10, 2017, 03:46:39 PM »
I made a set and forged an old wrench into the plate and used circular saw blade for triggers. Pinned with drill rod and forged spring from hay rake tooth. Hack saw blade for feather spring also.
VITA BREVIS- ARS LONGA

Offline BOB HILL

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Re: Building a set of Cumberland School triggers
« Reply #20 on: December 10, 2017, 04:51:37 PM »
Thanks for sharing this prodject, Jim. This is one I've never tried before.
Bob
South Carolina Lowcountry