The Firearms Technology Museum

Patent No. 212 of 1853

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Claims

1. First, the lifting and discharging trigger or triggers, combined with the safety stop spring, and capable of being acted upon in the manner and with the effect described.

2. Secondly, the mode described by which the revolving chamber may be made to fit with the required tightness in the frame which carries it.

3. Thirdly, the modified form of trigger or triggers applied to guns to be loaded at the breech, and the general arrangement and construction of such guns described.

4. Fourthly, the same applied to guns to be fired by means of a needle.

5. Fifthly, the use of a cartridge of the kind described.

6. Lastly, the manufacture of gun barrels out of spirals of iron, or iron and steel wire, platted or crossed around a mandrill as described.

Description

Three self cocking lock mechanisms for revolvers, each embodying two triggers where pressure on the rear or bottom trigger raised the cock or hammer and pressure on the front trigger discharged the weapon.

A spring safety which prevented the hammer from striking the nipples except when properly raised by the rear trigger. This was effected by attaching a flat spring to the left hand side of the frame. At the top of the spring, and in alignment with the hammer nose, was a stud projecting into the hammer slot in the frame via a hole in the frame wall. If the hammer was raised slightly the spring snapped this stud into the hammer slot to separate the nipple and the hammer. When the cocking trigger was fully retracted, the pawl was thrust high enough to push the stud out of alignment and hold it clear. Pressure on the front trigger dropped the hammer to fire the weapon. Releasing the cocking trigger allowed the safety stud to be re-engaged if it was decided not to fire.
The original specification proposed to secure the safety spring by one screw only but advertisements of the period illustrated a two tined spring and stated that this was "made in a different manner" suggesting that readers were to be reassured about an earlier mistake in design.

An elongating slot for revolver cylinders. This was a tube inserted in the arbor passage through the cylinder which could be adjusted to take up any slop or undue play fore and aft of the cylinder in the frame aperture. The elongating slot used in production was different to the specification which showed the use of locking and securing screws for the socket and cylinder ratchet. A neater device was used which was simply slotted so that it might be rotated fore or aft by using an appropriate key.

A breech loading gun with an oscillating chamber held in place by a spring and a cartridge to suit, also a needle fire gun using the same principle. Gun barrels formed from platted or woven wire wound around a mandrill and welded to make a solid barrel.

 

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