An Improved Sporting Gun with Fixed Barrels and Movable Breech.
Year: 1891

page_text: Date of Application, 31st Jan., 1891
Complete Specification Left, 27th Oct., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Sporting Gun with Fixed Barrels and Movable
Breech.
| PAUL BRUN-Latrige of No. 7 Cours Fauriel, St. Etienne, in the Depart-
ment of the Loire and Republic of France, Gunmaker, do hereby declare the nature
of this invention to be as follows:-
This invention relates to a gun with fixed barrels and movable breech for the
loading and the extraction of the cartridges or of the empty cartridge cases.
In my gun the movable breech comes backward in sliding upon a metal slide
bar. It is guided in this movement by an inner groover (on each side) into which
engage the tenons of the movable breech.
On the accompanying drawing :-
-:
Figure 1 shows the gun with its movable breech slightly drawn backward, the
key or lever G, the function of which will be hereinafter explained, the extractor E,
the interior groove (shown in dotted line) the safety plate B, one of the
indicators I, and one of the tenonst of the movable breech and finally the washer R
for the setting of the cartridge in the barrel; this washer is perforated as is also
the movable breech for the passage of the firing pin P and of its spiral spring,
both shown in dotted line.
Figure 2 represents the gun without the movable breech as well as the play of
the triggers D. The trigger pressing upon the piece F uplifts it one side and brings
pressure upon the tumblers. This movement will be hereinafter described and
shewn in detail. In this figure may also be seen the ascensional bolt N which
serves as will hereinafter be seen to ensure the working of the safety and to keep
the block closed against the barrel; finally will be seen the piece CC' serving to
limit the travel of the movable breech when it is opened and it is not desired that
it should come out. To bring out the breech it is only necessary to uplift the
end C when the other end °C lowers and permits the passage of the movable
breech.
Figure 3 represents a plan view of Figure 2. The section at X Y shows clearly
the arrangement of the grooves ».
Figures 4 and 5 show in elevation and in plan view drawn to an enlarged scale,
the arrangement of the mechanism of the firearm which I will now explain.
To open the gun I lift the lever G which turns on the axle A (Figure 1). In
this movement the lower part of the upper arm or hook of the lever bears upon
the upper face of the ascensional bolt N and lowers it. To permit this lowering
the lower hook of the lever comes out of the opening which passes through the
bolt N. The inclined plane i of the bolt N then meets an inclined plane fixed
on the movable breech and having a contrary direction there follows a slight recoil
movement of the movable breech, a movement which serves to obtain the freeing
of the cartridge from sticking to the barrel after the gun has been fired, and that
by means of the cartridge extractor E. It is then only necessary to draw back-
ward the movable breech, which nothing now holds, and the gun is open at the
same time that the spent cartridges are extracted.
I have placed on the slide bar of the left barrel a recess or notch which if this
barrel has not been fired permits stopping the cartridge when the gun is opened
and prevent its falling to the ground. The cartridge is in fact held by this notch
before it has completely left the barrel and being sustained by the barrel and
stopped by the notch the cartridge extractor E passes above the edge or flange of
the cartridge which remains in place. This notch or recess might be applied to
both barrels or to neither of them as may be desired by the sportsman.

page_text: The gun is cocked as follows:-
Referring to Figures 4 and 5.
When I lift the lever the heel of its lower hook
or arm pushes backward the bolt V. This bolt in its backward movement
compresses the springs and brings the gun to the safety or to the cocking notch
or bent.
In fact the bolt V having the two small arms bent over at their ends
and engaging in the grooved causes the compression of the springs Q in the back-
ward movement. But besides the cocking of the firing pins the lever by the aid
of the bolt fulfils another office. It causes the working of the safety. The
bolt V is terminated by two small plates which are not in a same horizontal plane
with the rest of the bolt. These plates are brought backward at the same time as
the body of the bolt and come upon the tail of the tumblers, see Figure 5, and
consequently prevent the piece F from having contact with these tails of the
tumblers and causing the discharge if the triggers are pressed.
To close the gun when it is cocked the lever G must be raised and the movable
breech pushed forward as far as possible. The lower hook or arm of the lever
then enters the longitudinal opening of the ascensional bolt N and in bringing
down the lever raises this bolt N to the position represented Figure 2.
This lever hermetically closes the gun by pressing the movable breech against
the barrels, but the gun cannot be fired at this moment. In fact the lever has not
acted upon the bolt V in this closing movement, this latter still wedges the
tumblers. In order to fire, the bolt V must be brought in front of the safety
plate S to free the tumblers. This movement will be readily understood by reference
to Figure 5.
Thus the lever in rising :-
1. By means of the bolt V cocks the gun by compressing the spiral springs.
2. Determines the safety by the backward movement which it gives to the bolt
which wedges the tumblers. Finally it should be explained how it ensured this
safety by lifting the ascensional bolt. To effect the discharge it is necessary that
the ends r, r, of the bolt V enter into the recess of the ascensional bolt N,
otherwise, the bent part of the arm b which enter into the grooves d receive the
shock resulting from the expansion of the spring Q and the firing pin cannot
strike the cartridge.
Dated this Thirty-first day of January 1891.
COMPLETE SPECIFICATION.
An Improved Sporting Gun with Fixed Barrels and Movable
Breech.
I PAUL BRUN-LATRIGE of No. 7 Cours Fauriel, St. Etienne in the Department
of the Loire and Republic of France, Gunmaker, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to a gun with fixed barrels and movable breech for the
loading and the extraction of the cartridges or of the empty cartridge cases.
Referring to the accompanying drawing:-
Figure 1 is a side elevation of my improved gun its movable breech being
slightly drawn backward and the lever raised.
Figure 2 is a side elevation showing the metal frame of the gun, the stock being
removed and the key down.
Figure 3 is a top plan view of the gun in horizontal projection the movable
breech supposed to be removed.
Figure 4 is a longitudinal section showing the mechanical parts of my gun the

page_text: section.
Figure 5 is a bottom plan view of the movable breech and the pieces enclosed
therein, and
Figure 6 is a lateral section at M' N' Figure 4 showing the breech and the
stock in section.
In my gun the movable breech comes backward in sliding upon a metal slide
bar. It is guided in this movement by an inner groove (on each side) into
which engage the tenons of the movable breech.
At Figure 1 may be seen the key or lever G, the function of which will be
hereinafter explained, the extractor E, the interior groover (shown in dotted line)
the safety plate B, one of the indicators I, and one of the tenons t of the movable
breech and finally the washer R for the setting of the cartridge in the barrel;
this washer is perforated, as is also the movable breech, for the passage of the firing
pin P and of its spiral spring both shown in dotted line.
Figure 2 represents the gun with the movable breech in elevation and also shews
the play of the triggers D. The trigger pressing upon the piece F uplifts it one
side and brings pressure upon the tumblers. This movement will be hereinafter
described and shown in detail. In this figure may also be seen the ascensional
bolt N which serves as will hereinafter be seen to ensure the working of the
safety and to keep the block closed against the barrel; finally will be seen the
piece CC serving to limit the travel of the movable breech when it is opened
and it is not desired that it should come out. To bring out the breech it is only
necessary to uplift the end C' when the other end C lowers and permits the passage
of the movable breech.
To open the gun I lift the lever G which turns on the axle A (Figure 1). In
this movement the lower part of the upper arm or hook of the lever bears upon the
upper face of the ascensional bolt N and lowers it. To permit this lowering the
lower hook of the lever comes out of the opening which passes through the bolt N.
The inclined plane of the bolt N then meets an inclined plane fixed on the
movable breech and having a contrary direction there follows a slight recoil
movement of the movable breech, a movement which serves to obtain the freeing
of the cartridge from sticking to the barrel after the gun has been fired, and that
by means of the cartridge extractor E. It is then only necessary to draw back-
ward the movable breech, which nothing now holds, and the gun is open at the
same time that the spent cartridges are extracted.
I have placed on the slide bar of the left barrel a recess or notch which if this
barrel has not been fired permits stopping the cartridge when the gun is opened
and prevents its falling to the ground. The cartridge is in fact held by this notch
before it has completely left the barrel and being sustained by the barrel and
stopped by the notch the cartridge extractor E passes above the edge or flange of
the cartridge which remains in place. This notch or recess might be applied to
both barrels or to neither of them as may be desired by the sportsman.
The gun is cocked as follows:-
Referring to Figures 4 and 5. When I lift the lever the heel of its lower
hook or arm pushes backward the bolt V. This bolt in its backward movement
compresses the springs Q and brings the gun to the safety or to the cocking notch
or bent.
In fact the bolt V having the two small arms b bent over at their ends
and engaging in the groove d causes the compression of the springs Q in the back-
ward movement. But besides the cocking of the firing pins the lever by the aid
of the bolt V fulfils another office. It causes the working of the safety. The
bolt V is terminated by two small plates which are not in a same horizontal plane
with the rest of the bolt. These plates are brought backward at the same time
as the body of the bolt and come upon the tail of the tumblers, see Figure 5, and
consequently prevent the piece F from having contact with these tails of the
tumblers and causing the discharge if the triggers are pressed.
To close the gun when it is cocked the lever G must be raised and the movable

page_text: breech pushed forward as far as possible. The lower hook or arm of the lever
then enters the longitudinal opening of the ascensional bolt N and in bringing
down the lever raises this bolt N to the position represented Figure 2.
This lever hermetically closes the gun by pressing the movable breech against
the barrels, but the gun cannot be fired at this moment. In fact the lever has
not acted upon the bolt V in this closing movement; this latter still wedges the
tumblers. In order to fire, the bolt must be brought in front of the safety
plate S to free the tumblers. This movement will be readily understood by
reference to Figure 5.
Thus the lever in rising :-
1. By means of the bolt V cocks the gun by compressing the spiral springs.
2. Determines the safety by the backward movement which it gives to the bolt
which wedges the tumblers. Finally it should be explained how it ensured this
safety by lifting the ascensional bolt. To effect the discharge it is necessary that
the ends,, of the bolt V enter into the recess of the ascensional bolt N,
otherwise, the bent part of the arms which enter into the grooves d receive the
shock resulting from the expansion of the spring Q and the firing pin cannot
strike the cartridge.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The sporting gun herein before described the distinctive characteristics of which
are:-
1. The fixity of the barrels.
2. The lever which cocks the firing pins by the compression of the springs and
ensures by the aid of the bolts V and the ascensional bolt N the working of the
safety.
.
3. The opening of the gun which is effected by a sliding upon special slide bars
and produces at the same time the extraction of the cartridge.
4. The safety system as hereinbefore described which does not permit the
discharge of the gun unless the movable breech is completely in its place.
5. The formation of the lever and its working.
Dated this Twenty-seventh day of October 1891.