14 round shotgun - patent date 1855

Discussion in 'General Firearms Discussion' started by lklawson, Jun 4, 2015.

  1. lklawson

    lklawson Staff Member

    This is brilliant, particularly for the time period. I suspect that the bicycle-like chain & gear feed mechanism might be prone to jamming or failure, but, on the other hand, chain drives are common and reliable on motorcycles and bicycles, so maybe not. This is another one that, when I win the $200,000,000 lottery, like the gyrojet, I'll be re-manufacturing.



    Attached Files:

  2. 45Man

    45Man Member

    Is that a folding forward grip?
    It's not shown in the pics below.
    I assume the fixed one (behind it) is what rotates the cylinder?
    It's a lot more complicated, read this:

    The Treeby chain gun was a .54 caliber percussion rifle that could fire 14 rounds in rapid succession. Designed in 1854, it was unlike anything else available at the time. Only two were ever made, with the hope of receiving a contract from the British Army. The gun was tested and found wanting, and no further production was ever undertaken.
    Firing the Treeby rifle requires following a specific process. First, of course, each of the 14 chambers must be loaded with powder and ball, and a percussion cap placed on the firing nipple on each one. Once the weapon is all loaded, the lever on the barrel must be rotated up. The barrel is connected to the frame by way of a very coarse thread, so lifting the barrel lever pulls the barrel forward, away from the chamber. Next, the hammer is manually cocked, which rotates the chain of chambers and indexes one into position. Then the barrel lever is rotated back down, pulling the barrel in and sealing it against the chamber. Only now can the trigger be pulled, which fires the round currently sealed up to the barrel.
    After firing, the process repeats until all 14 rounds are expended. It is very important to lock the barrel onto the chamber BEFORE firing, and forgetting this critical step in the heat of battle could happen pretty easily, with unfortunate consequences. The manual of arms for this rifle is likely one of the reasons is was not pursued by the British Army. It also lacks any sort of usable front grip or stock, although this could have been addressed with further development.
    Despite its somewhat complex nature, the moving barrel offers several significant benefits. First, by sealing the chamber for each shot it provides higher velocities than revolver-type designs with a gap between barrel and cylinder. The Treeby also would be very unlikely to suffer from chain-firing, in which the spark from the main chamber ignites one or more adjacent chambers (which can be a problem in percussion revolvers when they are not loaded carefully and properly). Since the chamber is fully sealed, no sparks or blast can escape in the vicinity of the open chambers.

  3. SWAGA

    SWAGA No longer broke... Lifetime Supporter

    A semi auto " a la Nagant" barrel system would be interesting.
    Or a lever gun instead of the handle.
    Cool old technology in any case !
  4. Think1st

    Think1st Supporting Member

    I had always thought that something using little cartridges, for lack of a better term, might be good for use with a blackpowder rifle of some sort. My own idea didn't use a chain of them like that, though.

    Unless hunting laws for blackpowder season specify that the rifle be muzzle loading, it would be a more convenient way to charge the weapon when hunting.