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Thread: Deprez - Joassart ???

  1. #1
    Boolit Bub
    Join Date
    Feb 2006
    Location
    North central Ohio
    Posts
    36

    Deprez - Joassart ???

    Greetings, Gentlemen,

    My wife, Cookie, bought this one as a present for my 70th birthday.
    Bless her little old heart.

    First, a little history. In 1872, Jean Mathieu Deprez, of Liege, Belgium,
    patented a new, revolutionary system of revolver. It was known as the
    Deprez - Joassart. (pronounced: De-pre' - Zwha-sar') littlegun website
    has this actual piece displayed in known Belgian craftsmen section
    under Deprez - Joassart. Before restoration of course.

    I find the revolvers of that period quite fascinating. They were short on
    precision machine tools, but long on hand tools. There were many
    strange systems invented then. Most were unsuccessful and fell by
    the wayside. But, I have seen mechanical functions and designs that
    are still with us today. The evolution of the revolver is a fascinating study.

    Getting back to the subject at hand. You all know what patina is. Well,
    this specimen passed that stage ages ago. It was downright rusty, pitted,
    and scaly. Internally, it was much the same. Appeared to have been
    submerged a few times and never cleaned or dried.

    Using careful application of heat and properly fitting screw drivers, I
    managed to completely disassemble the revolver without any further
    damage. Took many hours of scrubbing with phosphoric acid and steel
    wool to clean down to the bare metal. In this case I was reluctant to use
    the electrolisis method.

    Upon examination, I found numerous items that needed attention to
    bring the old girl back from the grave. Grip frame was twisted. Don't
    even want to know how that happened. Straightened it.

    It had some past repairs that were done improperly. The most obvious
    was the main spring. The original was replaced with a much shorter one.
    A slot was sawn in the grip frame to capture the spring end and was
    secured with a screw through the frame. Messy work and the hammer
    was really difficult to cock. I filled the screw hole, brazed the slot and
    reshaped the frame. Made a new spring and screw and installed per
    original.

    Next was the cylinder stop. Was broke right off. Built up the area with
    Certanium hard face and reshaped with diamond files.

    The hammer rebound cam was destroyed, possibly from dropping on
    the hammer. Firing pin wouldn't clear the cartridge heads. Made new
    one from 4140.

    The hand was severely worn on the tip. Built up with Certanium hard
    face. Shaped, fitted and polished.

    The trigger return spring was a real cobble job, but it works, so I will use
    it.

    The frame latch"V" spring is a little weak but not broke. I installed a small
    coil spring to help. Added much strength to latch.

    The lanyard ring assembly was missing. Made a new one.

    Assembled, tested for function and timing. O.K. Took it all apart again
    for the finishing. I try to keep them looking antique. When finish was
    satisfactory, put it together again for the final time.

    Last item is the grip panels. I wanted to use the originals, but after
    cleaning they were too shrunk, warped and split to use. Out comes the
    ebony. Made and checkered new panels. Made one new escutchion
    and screw.

    ALL RIGHT ! ! ! One more brought back to life for another go-around.

    The revolver was made during the same time period as the Spirlet, so
    I'm thinking it may have been chambered for that cartridge. I will use
    the 12 x 18 R Spirlet. Makes it easy, as I load for it.
    .44-40 case at .710" length.
    .451 - 220 - heel bullet.
    12 grains Goex 3fff. for 510 fps velocity.


    And there you have it, Gentlemen. Thanks for listening.
    Last edited by RalphH; 10-30-2006 at 12:19 AM.
    Regards, Ralph.
    Boy, I love these old guns.....

  2. #2
    Moderator Emeritus


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    Great job. Gianni.
    [The Montana Gianni] Front sight and squeeze

  3. #3
    Boolit Master
    Join Date
    Oct 2005
    Posts
    727

    Thumbs up

    Well done and interesting-----------------Mag

    How dose it lock down ?

  4. #4
    Boolit Buddy Topper's Avatar
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    Nov 2005
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    327
    You did a very nice job restoring that old wheel gun,

  5. #5
    Boolit Grand Master
    9.3X62AL's Avatar
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    Redlands, NorKifornia
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    11,551
    TRULY COOL, and fine work sir. Thanks for sharing this with us.
    I don't paint bullets. I like Black Rifle Coffee. Sacred cows are always fair game. California is to the United States what Syria is to Russia and North Korea is to China/South Korea/Japan--a Hermit Kingdom detached from the real world and led by delusional maniacs, an economic and social basket case sustained by "foreign" aid so as to not lose military bases.

  6. #6
    Moderator Emeritus
    Bigjohn's Avatar
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    Handgun Doctor Ralph

    Mate:- If you keep this up, we will have to start calling you Dr. Handgun. Then when your fame spreads, you will have the world beating a path to your door, with sick and ailing handguns hoping for the mircale cure. Of course you will be struck with the affliction of not wanting to let them go back to their owners and wanting to keep them all as one big happy handgun family.

    But really mate; a job well done by someone who obviously cares about the sick and ailing handguns. Take a bow!



    John.

  7. #7
    In Remembrance

    NVcurmudgeon's Avatar
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    RalphH, you are a true artist bringing a revolver, that most would have dismissed as a wall hanger, back to the active list. Excellent work!
    Eagles have talons, buzzards don't. The Second Amendment empowers us to be eagles. curmudgeon

  8. #8
    Boolit Master


    Join Date
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    SE Ohio
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    Truly beautiful work. Would you happen to have a "before" of this revolver? I'm sure we'd all like to see it.
    Chuck

  9. #9
    Boolit Bub
    Join Date
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    North central Ohio
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    First photo in thread.
    Regards, Ralph.
    Boy, I love these old guns.....

  10. #10
    Cast Boolits Founder/B.O.B.

    45nut's Avatar
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    wow,truly amazing detail.

  11. #11
    Boolit Buddy
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    Davenport, IA
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    Geez Ralph! You're really talented.

    Paul

  12. #12
    Boolit Master At Heavens Range 2008 Swagerman's Avatar
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    Apr 2005
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    898
    Fascinating story, your work detail is amazing. Great old gun back from oblivion.

    Live long and prosper.

    Jim





    errr, I've got this old Ivy Johnson BT....

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check