Year: 1886

page_text: Date of Application, 16th Nov., 1886.
Complete Left, 6th Apr., 1887.
Complete Accepted, 13th May, 1887.
RESERVE
1, ANT BERTRAND of Liege, in the Kingdom of Belgium, Manufacturer, 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 an improved fire arm in which the hammers aro concealed
and in which the barrels are hinged to the stock, to permit the introduction of
cartridges into the cartridge chamber.
In carrying my said invention into practico I form a groove in the upper side of
the chamber in the stock in which groove the upper ends of the hammer and a lovor,
through the medium of which the hammer is cocked, are located. A notch is formed
in the under side of the hammer, with which notch the free end of the cocking lever
engagos.
To the plate on the upper side of the chamber in the stock, hereinafter termed the
stock chamber, is secured a lng carrying the scar which is provided with a tooth
adapted to engage with the notch in the hammer. The main spring is mounted on a
pivot in the said lug and other springs act against the sear.
The trigger is pivoted on the said plate at the under side of the stock chamber.
A bolt having a horn or heel, adapted to bear against the intermediate lever when
cocking the gun is located in the front wall of the stock chamber.
The cocking is effected by means of a key or lever acting on the said holt in the
ordinary manner during the opening and closing of the gun. As the bolt is pushed
backward its horn presses upon the intermediate lever which in its turn forces the .
hammer backward. The latter then slides upon the sear which under the action of
the spring is lifted up and remains in contact with the said hammer. When the
notch in the hammer comes opposite the tooth of the sear, the latter being pushed
forward by its spring enters the notch and the gun remains cocked. In firing, the
pressure upon the trigger raises the heel of the latter so that the said heel strikes tho
tail of the sear. The scar is thus lifted at its posterior part so that the tooth thereon
leaves the notch in the hammer, and the latter is released. The said hammer under
the influence of the main spring then strikes against the firing pin. The latter is

page_text: inclined with regard to the axis of the barrel. The main spring is connected with the
hammer by means of å link but it can be arranged in such a manner that it acts
directly upon the hammer.
The scar instead of being carried by the lug at the upper part of the stock chamber
can be supported by a lug on the lower side thereof. In this case the sear spring is
correspondingly arranged.
Tho firing pin can be connected either with the intermediate lever or with the
hammer by means of a joint, and then must follow the motions of these parts.
A safety catch is placed at the upper or lower side of the stock chamber. This
safety catch is composed of a slido carrying a rod sliding in a groove in the wall of
the stock chamber and has a cross piece which is placed in contact with the scar,
when the slide is pushed towards the barrel. When the gun is cocked, the tail of
the sear is lowered sufficiently to enable the cross-piece to engage therewith. The
sear then bears with one end against the hammer and with the other upon the
cross-piece.
An indicator is also provided to show when the gun is cocked. Thus the indicator
can be lifted by the main-spring or by the extremity of the hammer when the gun is
cocked.
The improvements hereinbefore described may be applied to double as well as singlo
barrel guns.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: ANT BERTRAND of Liege in the Kingdom of Belgium Manufacturer do hereby
declaro the naturo of this invention and in what manner the samo is to be
performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to that class of fire arms in which the hammers aro
concealed and it comprises the improvements hereinafter described.
In the accompanying drawing Figure 1 is a longitudinal section showing the
mechanism of the gun in the uncocked position.
Figure 2 is also a longitudinal view illustrating a slight modification and showing
the position of the mechanism when the hammers or strikers are cocked.
Figure 3 to 11 are views of details hereinafter referred to.
Figuro 12 is a sectional view illustrating modifications of the said invention.
Figures 13 to 16 are views illustrating other modifications.
In Figure 1 the whole mechanism is attached to the plate R of the breech, whereas
in Figure 2 only part of the mechanism is fixed upon the plate R of the breech, the
other part being fixed to the guard plato W.
The breech plate R has one or two cavities S (according as to whether the gun is
single or double barrelled) in which the upper extremities of the hammer and
levers B Figures 1 and 2 are pivotted the said lever serving as a medium for cocking
the hammers or strikers C.
A lug T, Figures 1 and 9 rivettod, welded or screwed upon the breech plate R
carries a rocking lover D having a tooth G at one ond Figures 1, and 6; the main
spring L fixed upon the pin L Figure 8; and the spring acting upon the tail of the
rocking lever (Figures 1 and 11).
The triggers M are pivotted upon the plate W.
The bolt E, Figures 1, 2 and 4, is provided with an upwardly turned horn or
heel E¹ which, whon cocking the gun, bears against the lever B.
The cocking can be effected at will by the lever I acting upon the bolt E and by
the opening or closing of the gun, as in ordinary breech-loading guns. In these
movements the bolt E is pushed backwards its horn E¹ bearing upon the lover B
which moves the striker Cin its movement to the rear. The striker slides upon the
rocking lever D which actuated by the spring O is lifted and remains in contact with
the striker C. When the notch F reaches the tooth G, the latter, under the action
of the spring O enters the said notch and the gun is cocked, Figure 2. To fire it is
sufficient to press upon the trigger M so that the latter lifts the heel m which
encounters the extremity n of the rocking levor D. The rocking lever D is thus
lifted at its posterior part, the tooth G leaves the notch F and the striker C, being
liberated strikes the firing pin A.
In Figures 1 and 2 the main spring L acts upon the striker C by means of a
link (the spring L can however be arranged in such a manner as to act directly
upon the striker C.
The rocking lever D instead of being carried by the part T fixed upon the breech
plate R, Figure 1, can also bo sustained by a bracket T¹ welded rivetted or screwed
upon the plate W Figure 2. In this case the spring O¹ can likewise be arranged
upon the guard plate W Figure 2.
"
The firing pin A can also be connected by a hinge or ball and socket joint either

page_text: with the lever B or with the striker and participate in the motions of those
parts.
In my improved gun I make use of a safety device placed upon the breech plate
Figure 1, or upon the plate W Figure 2. In Figures 1 and 10 the safety device
consists of the parts HHH. In Figure 2 the safety device consists of the parts
H* and H*.
1.also make use of an indicator V Figures 1 and 12 arranged in the breech plate
and provided with a spring. The indicator V is lifted by the main spring L when the
gun is cocked.
The indicator V Figure 2 can also be utilized, being moved by the tappet of the
hammer.
Figures 12 to 16 show modifications of the gun which has been described.
In Figure 12 the intermediate lever B' replaces the lever B in Figures 1, 2 and 7.
The lever B Figures 12 and 13 has its pivot b¹ in the lower part of the breech, and
it serves like the lever B, to cock the striker C. This lever B₁ also takes its place
between the two strikers (when two are used) before the pin E (here without a
heel E¹) and it is provided at its upper extremity, Figure 13 with a transverse
pin ² that comes before the strikers C and cocks the latter when the pin is pushed
rearwards. A springs Figure 12 bears upon the lower part of the lever B¹ and
causes it to return against the brocch as soon as the pin E reassumes its normal
position. This spring can be arranged in the opposite direction upon the
plate W.
In this construction the mechanism of the gun is likewise fixed upon the breech
plate but through the medium of blocks t and t.
In order to facilitate the pieces E B B¹ and 0 (pin, intermediate levers and
strikers) sliding one upon the other during the cocking, I arrange upon one of the
sliding parts a projecting roller which remains constantly in contact with the other piece.
Thus in Figure 15 the horn E' of the bolt E is provided with a roller e which moves
upon the lover B, in Figure 16 the lever B carries a roller , in Figure 14 the
bolt E is provided with a rollor e', and in Figures 12 and 13, the lover B₁ comes in
contact with the bolt E only through the medium of the roller 6. Moreover, the
transverse pin of the lever B', Figures 12 and 13, carries two sleeves 6 that roll
upon the strikers when they are being cocked. In this manner the friction produced
by the sliding of these pieces upon one another is diminished, and the cocking does
not require such a great force as would otherwise be necessary.
As shown, no use is made of lock-plates in this arrangement of fire arms.
The various parts arranged as described are applicable to any breech loading gun.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is
First. In a gun having concealed hammers, the arrangement of the mechanism
comprising the intermediate lever B or B¹, the striker C, the rocking lever D, the
small spring O the main spring L, the said parts being fixed upon the breech plate R,
or upon fixed blocks upon the breech plate. R, or partly upon the breech plate R and
partly upon the plate W and the indicator V operating by the tension of the main
spring L.
Second. The arrangement upon one or more of the parts B, B¹, E, Figures 12, 13,
14, 15 and 16, of friction rollers or rotary sleeves to reduce the resistance produced
by these parts sliding one upon the other.