Improvements in the Mechanism of Drop-down Fire Arms.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883) as allowed by
the decision of the Comptroller General of the 31st day of May 1898.
Date of Application, 23rd Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in the Mechanism of Drop-down Fire Arms.
I, JOSEPH MARÉCHAL, of 497, Rue St. Leonard, Liege, Belgium, Gun-maker, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the mechanism of drop-down fire arms
and consists in the arrangement of the entire firing mechanism of a gun upon the
plate of the trigger-guard, and it is characterised more especially by the catch-lever
being placed between the main-spring and the spring of the catch-lever, all these
three parts being moreover situated in the same vertical plane.
On the accompanying drawings illustrating the application of my improvements
to a double barrelled gun,
Figure 1 is a side elevation of the gun lock
Figure 2 being a longitudinal vertical section of my improved lock mechanisın
shewn in the position of rest with the hammer not cocked;
Figure 3 is a plan view, and
Figure 4, a side view of the mechanism placed above the trigger-guard plate,
and shewn in the cocked position;
Figures 5 and 6, side and front view respectively of the hammer;
Figures 7 and 8, side view and plan of the main-spring;
Figures 9 and 10, side view and top view of the pivoted lever and catch;
Figures 11 and 12, side view and top view of the catch-spring;
Figures 13 and 14 side views of the two triggers.
As will be seen on the drawings, the trigger-guard plate a is secured to the stock
by means of a screw passing through the screw-hole b, Figs. 3 and 4, and it is
attached to the top plate of the lock by means of another screw d, Fig. 2.
The trigger-guard plate a is provided with a supporting-piece or block con
which are pivoted the hammer m, catch n and trigger o, by means of their res-
pective pivots m³, n¹ and o¹.
As already stated the main-spring r, the catch-lever 'n, and catch-springs are
situated in the same vertical plane and consequently occupy less space than in
ordinary constructions of firing mechanism, and moreover the main spring and
catch-spring are placed in the mechanism without requiring any kind of fastening.
The hammer m carries on its inner side, or side towards the working parts, a
projection m² surrounding its axis m' and terminating rearwards in a nose m³,
Fig. 5, against which bears the bent end of the main-spring r; this latter is
held in position by the bent part r¹ being inserted under the hooked part or nose m³,
and by its own tension.
The catch-lever n is laterally extended in front of its axis n¹ to the left, i.e.
towards the outer side, to form a foot n³-Figs. 2, 3 and 4, and 9 and 10,-which

page_text: constitutes the catch proper and projects under the hammer m, and when the
mechanism is cocked it springs into the cocking-notch of the hammer under the
influence of its spring s. The catch-springs is arranged above the catch-lever n,
and bears with its longer arm upon the entire length thereof, whilst its shorter arm
bears against a screw c¹ or a lateral projection of the support c, its lower arm
being stopped at the front by abutting against a projection n³-Fig. 9-of the
catch.
The triggers o, o are arranged between the two catch-levers n, n as shewn on
Fig. 3.
When the barrels drop down the raising of the hammers is effected by means of
a lever p, Fig. 2, in front of the foot of the hammer.
Dated this 22nd dow of Manh 100%
For the Applicant,
GEDGE & FEENY,
Chartered Patent Agents, 60, Queen Victoria Street, London, E.C.
COMPLETE SPECIFICATION (AMENDED).
Improvements in the Mechanism of Drop-down Fire Arms.
I, JOSEPH MARECHAL, of 4, Rue des Celestines, (late of 497, Rue St. Léonard,) Liége,
in the Kingdom of Belgium, Gun-maker, 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 improvements in the mechanism of drop-down fire-
arms and it consists in the arrangement of the entire firing mechanism of a gun
upon the plate of the trigger-guard, and it is characterised more especially by the
catch-lever being placed between the main-spring and the spring of the catch-lever,
all these three parts being moreover situated in the same vertical plane.
On the drawings which were filed with my Provisional Specification and illustrat-
ing my invention.
Figure 1 is a side elevation of the
gun lock,
Figure 2 being a longitudinal vertical section of my improved lock mechanism,
shewn in the position of rest with the hammer not cocked.
Figure 3 is a plan view, and
Figure 4 a side view of the mechanism placed above the trigger guard plate,
and shewn in the cocked position;
Figures 5 and 6, side and front views respectively of the hammer.
Figures 7 and 8, side view and plan of the main-spring.
Figures 9 and 10 are side view and top view of the pivoted lever and catch.
Figures 11 and 12, are a side and a top view respectively of the catch-spring.
Figures 13 and 14 are side views of the two triggers."
These drawings illustrate a double-action gun, and the firing mechanism for both
hammers is of identical construction, so only the action on the left hand side of the
gun need be here described.
As will be seen on the drawings, the trigger-guard plate a is secured to the stock
by means of a screw passing through the screw-hole b, Figures 3 and 4, and it is
attached to the top plate of the lock by means of another screw d, Figure 2.
The trigger-guard plate a has, for a portion of its length, a box shape. It is
provided on each side of the supporting piece or block c with two deep grooves
limited exteriorly by walls (not shewn on the drawings) which act or serve with the
block c to secure and maintain the axes m¹ and n¹ of the hammers m and of the
catch or tumbler n; these walls also serve to prevent all exterior sliding or
slipping of the hammers and of the catch or tumbler.

page_text: As already stated the main-spring r the catch-lever n, and catch-springs are
situated in the same vertical plane and consequently occupy less space than in
ordinary constructions of firing mechanism; moreover the main-spring and catch-
spring are placed in the mechanism without requiring any kind of fastening. The
hammer m carries on its inner side, or side towards the working parts a projection m²
surrounding its axis m' and terminating rearwards in a nose m³, Figure 5, against
which bears the bent end r of the main-spring r; the main spring is thus at the
side of the hammer m and as will be seen hereafter, at the side of the catch or
tumbler n². The lower arm or portion of the main-spring is and rests for the whole
of its length, in contact with the plate a of the trigger-guard (Figures 2 and 4).
The main-spring is held laterally, partly by the projection or foot n of the catch
and partly by the block c; this main-spring is also held in position by the bent
part being inserted under the hooked part or nose m³, and by its own tension.
The catch-lever n is laterally extended in front of its axis n to the left, i.e.
towards the outer side, to form a foot ²-Figures 2, 3 and 4, and 9 and 10,-which
constitutes the catch proper and projects under the hammer m, and when the
mechanism is cocked it springs into the cocking notch of the hammer under the
influence of its spring s. The catch-spring s is arranged above the catch-lever n,
and bears with its longer arm upon the entire length thereof, whilst its shorter arm
bears against a screw c¹ or a lateral projection of the support c, its lower arm being
stopped at the front by abutting against a projection n³, Fig. 9, of the catch. The
catch-springs can thus be fixed at the forward extremity of its lower arm by a
downward bend (similar to the bend r of the main-spring Fig. 7) which engages
with a suitable notch in the catch-lever n. This arrangement is not shewn on the
drawings.
The triggers o, o are arranged between the two catch-levers n, n as shewn on
Fig. 3.
When the barrels drop down, the raising of the hammers is effected by means of
a lever p, Fig. 2, in front of the foot of the hammer.
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:-
In the mechanism of drop-down fire-arms,
(1). The arrangement of the catch-lever n between the catch-springs and the
main-spring r in the same vertical plane.
(2). The main spring placed laterally to the hammer m without any special
fastening and held by the contact of its larger arm with the trigger guard plate a,
by the projection or foot n² of the catch, by the supporting block c, by the support
of its shorter arm a¹ on a nose n³ of the hammer, and by its own tension.
(3). The catch-springs held solely by its lower arm in contact for the whole of its
Jength with the catch-lever n, and the forward end of which abuts against a bend n³
of the catch or engages in a suitable notch in the lever a whilst its upper arm bears
against a projection c¹ of the block c, and by its own tension.
Dated this Eighth day of December 1897.
ще Аррисан,
GEDGE & FEENY,
60, Queen Victoria Street, London, Chartered Patent Agents.