Improvements in Single Trigger Double Barrel Guns.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Single Trigger Double Barrel Guns.
'
--
I, HARRY GREENER, of Saint Mary's Row, in the City of Birmingham, Gur
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in single trigger guns, having two or
more barrels, and its object is to provide means whereby the recoil action from
firing shall be utilized to prevent the liability to accidentally firing the next
barrel, also the adaptation and arrangement of means whereby with the one
trigger such barrels may be consecutively fired.
a similar
According to this my invention I employ a moveable piece which shall in its
normal state lie in a position to operate or to permit of the operation of the sear
lever of the first barrel, but which after firing shall finally assume
position for the second barrel sear lever and so on. This moveable piece may be
of a pivoted arm or of a pendulous form, and may be weighted more or less at
the moveable end, and is moved forward into position by a spring, but is other-
wise free to a considerable reverse motion. This moveable piece may be carried
from the trigger, or from other convenient place, but in such a manner that it
may with the lifting of the trigger operate the sears, or that it shall prevent the
lifting of the trigger except when such moveable piece has arrived at its point
of rest.
It is well known that in guns of this class, when a barrel has been fired, in
the recoil which follows, the trigger finger is liable (unwittingly) in the rapid
return forward movement of the gun, to fire the next barrel. Now my invention
is intended to obviate this, somewhat as follows:
-
In the sudden rearward movement of the recoil which succeeds the firing, an
impetus is given to the said moveable piece which considerably overcomes (for the
time being) the opposite force of the spring, consequently the said piece is thrown
backward considerably, so that ere the spring has had sufficient time to bring it
again forward to the position for the next sear; all danger due to the return
(forward) movement of the gun against the trigger finger causing it to be fired,
has passed, or even should the trigger be inadvertently lifted no firing can take
place. The shape of this moveable piece is suitably made to accommodate the
sear levers &c., and also
that upon
SO,
shall be brought
re-cocking of the gun
back into its primary position.
the
Doted this 18th day of February 1898
CHARLES T. POWELL,
Applicant's Agent, 12, Cherry Street, Birmingham.

page_text: I, HARRY GREENER, of Saint Mary's Row, in the City of Birmingham, Gun
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 improvements in single trigger guns, having two or
more barrels, and its object is to provide means whereby the recoil action from
firing, shall be utilized to prevent the liability to accidentally firing the next
barrel, also the adaptation and arrangement of means whereby with the one
trigger such barrels may be consecutively fired.
a similar
According to this my invention I employ a moveable piece which shall in its
normal state lie in a position to operate or to permit of the operation of the sear
lever of the first barrel but which after firing shall finally assume
position for the second barrel sear lever and so on. This moveable piece may be
of a pivoted airm or of a pendulous form, and may be weighted more or less at
the moveable end, and is moved forward into position by a spring, but is other-
wise free to a considerable reverse motion. This moveable piece may be carried
from the trigger, or from other convenient place, but in such a manner that it
may with the lifting of the trigger operate the sears.
It is well known that in guns of this class, when a barrel has been fired, in
the recoil which follows, the trigger finger is liable (unwittingly) in the rapid
return forward movement of the gun, to fire the next barrel.
Now my invention is intended to obviate this, somewhat as follows:-
In the sudden rearward movement of the recoil which succeeds the firing, an
impetus given to the said moveable piece which considerably overcomes (for the
time being) the opposite force of the spring, consequently the said piece is thrown
backward considerably, so that ere the spring has had sufficient time to bring it
again forward to the position for the next sear, all danger due to the return
forward movement of the gun against the trigger finger causing it to be fired,
has passed, or even should the trigger be inadvertently lifted no firing can take
place. The shape of this moveable piece is suitably made to accommodate the
sear levers &c., and also so, that upon the re-cocking of the gun it shall he brought
back into its primary position.
In order to more clearly explain this my invention I have appended hereunto
an illustrative drawing upon which are figures and numbers of reference, similar
numbers referring throughout the several views to the same thing or part, and in
which:
-
Fig. 1, is a general side view of my invention, with both barrels unfired.
Fig. 2, is a plan view of the invention on line A-B of Fig. 1.
Fig. 3, is a view showing the device when one barrel has been fired, and the
parts are left in position for firing the second barrel.
Fig. 4, shows the mechanism while under the recoil action.
Fig. 5, is a detailed enlarged side view of the movable piece.
Fig. 6, shows a modification in the shape and disposition of the movable piece.
Only such parts of the fire arm as are necessary to explain this my invention
are shown, in which 8 is the breech block, 9 the barrel, 10 the bolt lever, 11 the
trigger guard plate, 12 the trigger, 13, 13ª, the sear levers. The sear levers as is
well known operate directly or indirectly to release the hammers and fire the gun,
such hammers &c. not being here shown, for the reason before stated. Upon the
trigger I pivot the movable piece 14, whose moving end is comparatively heavy.

page_text: This piece is acted upon by a light spring 15, which tends to pull it forward into
the position shown in Figs. 1. 2 and 3. Upon the face of this piece 14, is a tooth cr
projection 16, which serves to lift the ends of the sear levers 13 and 13. As will
be seen considerable room is left for rearward movement of the piece 14, as it
may reach the face 17 should circumstances demand it.
Under a state of rest this piece assumes the position shown in Fig. 1, that is.
the tooth 16, lies beneath the sear lever 13, and is prevented from further forward
movement, by the face 18, resting against the end of the said sear lever. Now if
the trigger be raised, the one barrel is fired, but in the sudden recoil which
succeeds the firing, an impetus is given to the movable piece 14, which considerably
overcomes (for the time being) the opposite force of the spring 15, consequently
the said piece 14, is thrown backward considerably into a position for instance
as seen in Fig. 4, so that ere the spring 15, has had sufficient time to regain its
influence to bring it again forward into position for the next sear lever, all danger
due to the return (forward) movement of the gun against the trigger finger-
which might unintentionally cause it to be fired-has passed, or even should the
trigger he inadvertently lifted, no firing would take place. This period however
being passed the tooth 16, is carried to the position beneath the second sear
lever 13. as seen in Fig. 3, when upon the trigger being raised the second barrel
will be fired. The tumbler and sear of the first lock are what is known as "false
gaited" in which the tail of the sear remains elevated until re-cocking takes place.
In the re-cocking of the gun as the end or ends of the sears move downward they
strike the inclined surface 18, of the piece 14, and move it backward to permit
their passing into position, and in so doing the said movable piece is re-set into
position, in which its tooth 16, lies beneath the first sear 13ª, as seen in Fig. 1,
ready for a repeat action.
As before intimated this movable piece may be modified in position and shape
but yet to perform the same service, as for instance as seen at 14, in Fig. 6,
where it asumes a pendulous form, in which its lower end is made comparatively
heavy for the reasons before stated. That form shown however in Figs. 1 to 5
inclusive appears to answer best.
Although I have shown the movable piece as a pivoted body I do not confine
myself to such a shape as it may be made to slide against a re-bounding spring.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In single triggered guns having more than one barrel, the combination
with the trigger, of a moveable piece such as 14, 14%, which owing to the velocity
of its movement under recoil is kept clear of the succeeding sear for a given time,
and then brought into position for next firing, substantially as set forth and shown.
2. In single triggered guns having more than one barrel, with a movable piece
subject to movement under recoil action, the resetting of such movable piece under
the sear by the replacing action of the sear, substantially as described and set forth.
Dated this 18th day of November 1898.
CHARLES T. POWELL,
Applicant's Agent, 12, Cherry Street, Birmingham.