An Improved Hammerless Gun.
Year: 1888

page_text: Date of Application, 10th Aug., 1888
Complete Specification Left, 8th May, 1889-Accepted, 6th July, 1889
PROVIDIUNAL DIVIFICATION.
An Improved Hammerless Gun.
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 to be as follows:-
My Invention relates to a gun without apparent cocks or hammers, the mechanism
of which is of great simplicity, being composed for each of the barrels of a double
barelled gun, of only three active pieces, fitted and working in a practical and
economical manner.
These three pieces are:--a main spring a hammer, and a tumbler, the arrange-
ment of which is hereinafter described.
The other parts of this breech loading pivoting or drop down, gun, such as the
key or lever, the bolt, the triggers etc., present no novelty.
The key or lever, placed above, pivots horizontally to cause the pivoting or
dropping down of the double barrel, the tenons or lumps of which are disengaged
from the bolt in the usual manner. This latter plays, operated by the key or lever,
by the intermediary of a vertical rod forming the pivot of this key or lever, the end
of which, in the shape of the bit of a key, is engaged in a groove or recess formed
in this bolt which is compelled to slide like the bolt of a lock..
In
This movement of the key effects at the same time the cocking of the
gun.
fact, the back part of the bolt is made to press against and pivot the cock or hammer,
placed vertically, and the pivot of which is at a lower level than that of the bolt.
This hammer which is a simple block thus moves away, in pivoting, from the striking
pin used to strike the centre of the cartridge, being actuated by the main spring to
which it is connected by a link or chain.
a nut
This double branched main spring, is lodged in front of the hammer in a recess
formed in the solid of the pivoting piece beneath the barrel; which recess is
covered by a hidden plate. The hammer has at its lower part, shaped as
or tumbler, a notch into which enters the end of a long catch or tumbler placed
horizontally in opposite direction to that of the main-spring but at the same level
as this latter.
This catch or tumbler is brought into gear with the notch of the nut by a small
vertical spring lodged in a recess made in the side forming the bottom of the box
containing the cocks or hammers, and which completes the solid part of the
breach.
The gun is thus cocked by the actual movement of the lever or key and before
the pivoting or dropping down of the barrel which is then loaded and replaced.
The tumbler bearing upon the trigger, lifts when this latter is pressed in the
usual manner, and frees the hammer which comes down to discharge the gun.
In this system the mechanism is therefore completely hidden and it has the
advantage of being combined in the simple manner described, without the addition
of parts differing greatly from those known in gunmaking while forming a mechanism
of an entirely novel type..
Dated this Tenth day of August 1888.

page_text: COMPLETE SPECIFICATION.
An Improved Hammerless Gun.
I PAUL BRUN-LATRIGE of No. 7 ('ours 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:-
My invention relates to a gun without apparent cocks or hammers, the mechanism
of which is of great simplicity, being composed for each of the barrels of a double
barreled gun, of only three active pieces, fitted and working in a practical and
economical manner.
These three pieces the arrangement of which is shown at Figure 1 of the accom-
panying Sheet of Drawing are:-a mainspring r, a block or hammer M and a
tumbler or catch 9, the arrangement of which is hereinafter described.
The other parts of this breech loading, pivoting, or drop down gun, such as the
key or lever, the bolt, the triggers, the extractor etc., present no novelty.
The key or levere placed above, pivots horizontally to permit the pivoting or
dropping down of the double barrel, the tenons or lumps of which are disengaged
from the bolt v, v (shown in dotted lines) in the usual manner. This latter plays,
operated by the key or lever, by the intermediary of a vertical rod t forming the pivot
of this key or lever, the end of which p, in the shape of the bit of a key, is engaged in
a groove or recess formed at e in this bolt between the small pieces beneath it, it
is thus compelled to slide like the bolt of a lock.
This movement of the key effects at the same time the cocking of the gun, because
the bolt v v in coming back and while freeing, in the usual way, the tenons of the
barrel cocks the hammer M. which takes the position shown on the Drawing, having
been pushed at a by the end a¹ of the bolt until the tumbler 9 takes into the notch n
made at the base of the block forming hammer. This hammer M thus moves away,
in pivoting, from the striking pin used to strike the centre of the cartridge, being
actuated by the main spring to which it is connected by the link or chain u.
Therefore when the trigger d presses on the tumbler g the hammer M comes down
with all the power of the double branched main spring r, which is lodged in front of
the hammer in a recess formed in the solid of the pivoting piece beneath the double
barrel which recess is covered by a hidden plate.
The catch or tumbler is brought into gear with the notch n by a small spring s
sot in a recess made in the side P forming the bottom of the box containing the cocks
or hammers, and which completes the solid part of the breech.
The gun is thus cocked by the actual movement which is given to the lever or key c
and before the pivoting or dropping down of the barrel which is then loaded and
replaced ready for firing.
7"
In certain cases, the main spring may be done away with as well as the chain or
link u, and simply replaced by a vertical main spring R placed in the opposite way to
that existing at s upon the side P, as shown Figure 2 of the Drawing.
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
1. A hammerless gun having a main spring (?), a hammer (M) and a tumbler g
constructed, combined, and arranged to operate substantially as hereinbefore described
and shown Figure 1 of the Drawing.
2. The modification represented Figure 2 of the Drawing in which the main
spring (R) is placed behind the hammer (M) substantially as described.