IMPROVEMENTS: IN BREECH LOADING FIRE ARMS
Year: 1885

page_text: I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of
the Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement E.C. do hereby declare the nature of said invention for "IMPROVEMENTS:
IN BREECH LOADING FIRE ARMS" a communication to me from abroad by Joseph
Duval of Laprairie in the Dominion of Canada to be as follows:-
This invention relates to improvements in Breech loading fire arms and its object
is to furnish a gun which will be simple in construction and cheap in manufacture
in which the number of parts'shall be reduced to a minimum and in which the
operative mechanism may be readily removed when necessary and which can be
loaded and fired with great rapidity.
.....
The invention consists partly in an improved construction and arrangement for
the loading, cocking, and firing devices further in the manner of securing the
operative mechanism in the gun and locking it in a peculiar manner so that it may
be instantly removed and further in various details of construction and in the novel
combinations of the parts all fully hereinafter explained.
The stock the side walls of the slotted chamber the tang embedded in the stock
and the barrel are all of the usual construction.
The barrel is screwed to a suitable lug so that it may be removed in order that
rifled and smooth bore barrels may be used interchangeably the cartridge chamber
is in line with the bore of the barrel while an extension of the stock supports and
partly encloses the barrel.
The operative mechanism is supported by a frame which is composed of a
vertical standard and a slotted base plate The standard has two shoulders which
enter rebates in a vertical metal plate rigidly connected to the stock by a tang
The standard fits closely and bears firmly against this plate at the rear.
The breech-block closes the slot in the chamber and is pivoted upon a pin in the
standard It extends forward to the cartridge chamber and has a cartridge groove
upon its upper surface and a horizontal perforation through which the firing pin
projects at its rear is a downward projection adapted to be struck by the hammer.
[Price 8d1

page_text: The hammer is pivoted upon a pin in the base plate a rounded hinge joint being
formed The lock spring which projects the hammer forward is of an inverted
V shape and its free end bears upon a projection in the rear of the hammer which
is also provided with the ordinary half and full cock latches. The firing pin is
pivoted to the upper extremity of the hammer and projects forward through a
perforation in the breech block.
The trigger is pivoted upon a transverse pin in the base plate and has projecting
spurs which engage with either of the notches in the hammer. The trigger spring
is of ordinary construction and is held by a screw.
The extractor is a bell crank lever pivoted in the base plate having arms one of
which extends backwards in position to be struck by the descending breech block
when the extracting arm projects upward and engages with the rim of the
cartridge.
A safety pin slides in a space between the stock and the trigger guard and is
provided with a handle and a light spring The end of the key is slipped below the
end of the trigger obviating all danger of accidental discharge.
The lever pivoted on the pin which supports the hammer extends down through
the slot in the base plate to a point below where it may be easily reached by the
hand It also extends up above the pivot its upper end being formed with a
projection which enters a notch in the breech block when the latter is elevated.
When the lever is thrown down its rear portion strikes a pin on the hammer and
throws the latter back to half or full cock.
It will be understood from this that the lever and hammer being pivoted upon
a common pin move backward as one but may move forward independently.
A cavity is formed in the front part of the stock in which is a strong pressure
spring which bears on the end of a double sliding key the arms of which enter
slots the upper one being in the end of the frame while the inner face of the key
bears against the end of said frame and forces it back.
Between the arms of the key is pivoted upon a transverse bolt a cam which has
a projecting thumb piece or handle.
By means of this handle the cam is forced against the key forcing it into the
cavity in the stock and withdrawing the sliding arms from engagement with the
slots.
By a slight forward movement of the lever the frame is disengaged from the
back plate If the lever is then forcibly pulled down the entire frame and all the
parts pivoted therein may be withdrawn from the breech either for cleaning or
repair or to render the gun harmless.

page_text: пиртототонию ш отееец года ПО АГШЕ
:
I, LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of
the Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement E.C. do hereby declare the nature of this invention (a communication
to me from abroad by Joseph Duval of Laprairie in the Dominion of Canada)
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 improvements in breech loading fire arms and its object
is to furnish a gun which will be simple in construction and cheap to manufacture,
in which the number of parts shall be reduced to a minimum, in which the operative
mechanism may be readily removed when necessary and which can be loaded and
fired with great rapidity.
The invention consists partly in an improved construction and arrangement of
the loading cocking and firing devices, further in the manner of securing the
operative mechanism in the gun and locking it in a peculiar manner so that it may
be instantly removed, and further in various details of construction and in the
novel combinations of the parts all fully hereinafter explained.
In the drawings:
Figure 1 is a side elevation.
Figure 2 is a detail of the cam and key for removeably securing the operative
parts within the chamber.
Figure 3 is a longitudinal vertical section.
Figure 4 is a partial side elevation, the gun having just been fired.
Figure 5 is an end view of Figure 4.
Figure 6 is a view similar to Figure 4 with the gun in position for reloading.
Figure 7 is a section on line X X of Figure 3.
Figure 8 is a section on line Y Y of Figure 3.
A represents the stock. B the side walls of the slotted chamber. C the tang
embedded in the stock, and D the barrel all of the usual construction.
The barrel D is screwed to a suitable lug so that it may be removed in order
that rifled and smooth bore barrels may be used interchangeably. E is the cartridge
chamber in line with the bore of the barrel. F is an extension of the stock which.
supports and partly encloses the barrel (Figure 1).
The operative mechanism is supported by a frame W (Figures 4 and 6).
This frame is composed of a vertical standard W₁ and a slotted base plate W*
The standard W has two shoulders wwwhich enter rebates in the metal plate C¹:
such plate being rigidly connected to the stock by the tang C. The standard there
fits closely and bears firmly against the plate C¹ at the rear.
The breech block G closes the slot in the chamber and is pivotted upon a pin K
in the standard W¹. It extends forward to the cartridge chamber and has a
cartridge groove g upon its upper surface and a horizontal perforation g' through.
which the firing pin projects. At its rear is a downward projection g' adapted to
be struck by the upper arm of the lever J.

page_text: The hammer I is pivotted upon a pin M in the base plate W2 a rounded hinge
joint being formed as shown in Figure 3. The lock spring N which projects the
hammer forward is of an inverted V shape and its free end bears upon a pro-
jection I, on the rear of the hanımer. The latter is also provided with the ordinary
half and full cock notches (Figure 3).
The firing pin H. is pivotted at the upper extremity of the hammer and projects
forward through a perforation in the breech block.
The trigger P is pivotted upon a transverse pin in the base plate, and has
a projecting spur which engages with either of the notches in the hammer. The
trigger spring p is of ordinary construction and is held by a screw Q.
The extractor is a bell crank lever pivotted in the base plate W2 and having
arms T¹ T
One arm of the lever extends backward (Figure 6) in position to be
struck by the descending breech block.
'
The extracting arm projects upward and engages with the rim of the cartridge.
S is a safety key which slides in a space between the stock and trigger guard
and is provided with a handle S' and a light spring S² (Figure 3). The end of the
key is slipped below the end 22 of the trigger obviating all danger of accidental
discharge.
J represents the lever pivotted on the pin M, which supports the hammer. The
lever extends down through the slot in the base plate to a point below the stock
where it may be easily reached by the hand. It also extends up above the pivot
its upper end being formed with a projection which enters a notch e in the breech
I block when the latter is elevated.
When the lever is thrown down its rear portion strikes a pin i, on the hammer
and throws the latter back to half or full cock.
•
It will be readily understood from this that the lever and hammer being pivotted
upon a common pin, move backward as one, but may move forward independently
as more fully described hereafter.
The operation of the parts thus far described, is as follows:-
Supposing the gun to have just been fired (Figure 4) the lever J is first thrown
down throwing back the hammer and striking the projection g² of the breech block.
The breech block falls bringing the cartridge groove in line with the chamber E.
In its descent it strikes the extractor which throws out the exploded shell.
A cartridge is placed in the groove of the breech block and readily pushed into the
chamber. The gun at this time may be either at half or full cock, aud Figure 6
shows the position of the parts.
The lever is now thrown up. The hammer which is held by the trigger remains
stationary while the upper end of the lever bearing on the breech block elevates
the latter until the projection of the lever enters the notch in the breech block
(Figure 4). If the gun is at full cock it is now ready to be discharged.
When the trigger is pulled the hammer is thrown forward independently driving
the pivotted firing pin against the primer of the cartridge.
•
In Figures 2, 3 and 7 is illustrated a device for locking the frame W, within the
breech and permitting it with the breech block, hammer, lever, trigger and extractor
to be removed at once and by a single movement.
A cavity F¹ is formed in the part F, of the stock in which is a strong pressure
spring U³. This spring bears on the end of a double sliding key U2, the arms of
which enter slots U¹ U, the slot U¹ being in the end of the frame W, while the
inner face of the key bears against the end of said frame and forces it back.
Between the arms of the key is pivotted upon a transverse bolt, a cam U which
has a projecting thumb piece or handle U° (Figure 1).
By means of this handle the cam is forced against the key crowding it into the
cavity in the stock and withdrawing the sliding arms from engagement with
the slots U U₁
'
By a slight forward movement of the lever J the frame W is disengaged from.
the plate C¹. If the lever is then forcibly pulled down the entire frame and all the

page_text: parts pivotted therein may be withdrawn from the breech either for purposes of
cleaning or repair, or to render the gun useless in case of necessity.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1.—In a breech loading gun, the combination with the chambered stock of
a supporting frame W, having the breech block, hammer, lever and extractor
pivotted therein and a sliding key U working in the recess F1 of the stock for
locking such frame, constructed and operated substantially as described.
2. The combination with the stock of the removeable frame W carrying the lock
mechanism, the key U sliding within the recess F1 of the stock for securing the
frame and the spring U³, substantially as described.
3. The combination with the chambered stock of the plate C¹ the removeable
frame W supporting the lock mechanism and composed of a base plate and standard
the key sliding within the recess F1 and the cam for operating the same all
substantially as described.
4. In combination with the chambered stock having the recess F1 and with
the lock bearing frame W, the double sliding key, the pivotted cam having the
handle U6 and the spring Us, substantially as described.