IMPROVEMENTS IN REPEATING FIRE ARMS
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by Samuel Pearce Wilding at the Office
of the Commissioners of Patents on the 17th April 1882. A communication
from abroad by Fritz Drevenstedt of Klein Ammensleben in the Empire of
Germany.
:
SAMUEL PEARCE WILDING of the firm of Fell and Wilding of the City Patent
Office 23 Rood Lane Fenchurch Street in the City of London Patent Agents
IMPROVEMENTS IN REPEATING FIRE ARMS a communication from abroad by Fritz
Drevenstedt of Klein Ammensleben in the Empire of Germany
The said invention relates to a novel construction of repeating, fire `arms
designed to effect the following amongst other improvements
A form of revolving magazine to allow of a larger number of chambers and
greater case of withdrawal or change of the magazine.
A longer line of sight than is usually attained, and a fixed back sight as well
as front sight, thus adding to the accuracy of the arm.
Rotation of the magazine after firing, and not by its operation, thus further
increasing the accuracy of the arm
The construction is as follows:-Upon a vertical bearing the magazine is made
to revolve horizontally; the the chambers are formed radially to receive cartridges,
of similar construction to those known as Lafoucheux or pin fire cartridges, that
is to say fired by means of a pin projecting sideways. The pin or bearing on
which the magazine revolves is part of a sledge or sliding piece by the motion of
which towards the barrel, any cartridge is forced into the breech of the barrel
ready for firing; a coned head is formed to each cartridge chamber, ensuring a gas
tight joint
The cartridges are discharged, when in position, by the blow of a hammer,
operated by a spring (both contained within the stock) upon the detonating pin
projecting downwards from' the side of the cartridge. The revolution of the
magazine and the setting of the hammer ready to strike, are effected by a
combined double trigger operated by the pull of the middle finger upon the inner
trigger alone The outer part of this combined trigger, only comes into position
when everything is ready for firing, and a slight pressure upon this outside trigger
by the fore finger, will release the hammer and cause discharge

page_text: The revolution of the magazine is thus effected-Upon its upper surface are a
series of grooves or channels, part radial and part passing from one chamber to
the next, in the direction of rotation. They are of different depths where the
cross passages join those that are radial, so that a finger or pin travelling in these
grooves would, in the travel towards the centre, enter the cross groove between
chambers, and in the return travel outwards would remain in the radial groove
Such a finger or pin is attached to a spring and projects below the magazine cover
resting in the grooves, so that the magazine reciprocates backwards and forwards.
under it, and in a fixed line with the barrel.
When the setting trigger, then, is pulled back by the middle finger, it presses
the magazine forward to the barrel, as before described, thereby compressing a
spiral spring, the upper spring pin during this movement travelling in the radial
groove, and therefore not tending to rotate the magazine, but keeping it steady in
position. When the discharge has taken place and the spiral spring brings the
magazine away from the breech of the barrel, the spring pin or finger returns by
a cross groove to the radial groove of the next chamber, thus rotating the magazine
through one chamber
The second or discharging trigger is fixed to the setting trigger by a pin on
which it moves when releasing the hammer, and a bolt also passes from the
discharging trigger through the setting trigger so that it acts as a lock when the
fire arm is ready, and set for discharge.
The back of the setting trigger is provided with a strong abutment or wedge
which when set is forced so as to wedge itself against the solid stock of the
fire-arm.
-
The force of the recoil is thus received on this wedge piece through the sledge
bearing, on which the magazine revolves.