Improvements in Single Trigger Double Barrel Guns.
Year: 1898

page_text: Date of Application, 15th Dec., 1898
Complete Specification Left, 1st Aug., 1899-Accepted. 30th Sept. 1899
PROVISIONAL SPECIFICATION.
Improvements in Single Trigger Double Barrel Guns.
We, CHARLES OSBORNE ELLIS and EDWARD WILLIAM WILKINSON, trading as
Charles Osborne and Company, of 12 and 14, Whittall Street, in the City of
Birmingham, Gun Manufacturers, and WILLIAM JERMAN, of Hazelwood Road,
Acock's Green, near the City of Birmingham, Gun Action Filer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in single trigger double barrel guns,
and more particularly to such guns wherein a switch arm is made to travel from
beneath the one sear to a similar position beneath the other scar.
According to, this invention the trigger is made of a compound form, that is,
of two parts, consisting of the major part of the usual trigger body--whose upper
part raises the switch arm and engages with the safety mechanism and a finger
trigger lever which is pivotwise attached to the trigger body and lies immediately
beneath it. A certain amount of movement is permitted to this finger lever in
addition to and independently of the motion of the trigger body, that is upon the
pull of the finger lever a given distance is traversed before it raises the trigger
body. The said finger lever is pushed, downward from the trigger body by a
suitable spring. An upper part of this finger lever in the shape of a peg is pro-
vided with a passage through the trigger body so as to protrude upon the upper
side in the first part of the pull of the finger lever. The continued pull of the said
lever then raises the trigger body.
Upon the upper side of the trigger body is a pivoted arm (or a slide may be
used) which may be moved to a position beneath either of the sear levers. This
arm (or slide) may be operated by means of the movement of the safety mechan-
ism in one direction, and by a spring in the other. This arm when moved be-
neath the right hand sear is there locked by a sliding spring bolt, to permit of
the mechanism which has brought it into such a position being removed out of the
way. When firing the right barrel the aforesaid arm is raised above such bolt
and when free therefrom is thrown over towards the other side, but is stopped
midway by reason of a projection thereon coming in contact with the aforesaid
upwardly protruding peg upon the finger lever. The arm is thus held from
further movement to the left until the finger lever has been allowed to fall to its
full extent. In the recoil action from first firing, this full fall does not take place
but the finger lever is involuntarily again raised, which however as before stated
does not permit the arm to proceed to its position beneath the left sear. When
however the recoil action has taken place and the finger lever loosed, it assumes
its lowest position and in doing so the upwardly standing peg is brought below
the arm, when the latter at once passes over to the left sear.
Its action is therefore somewhat thus:--Upon the opening of the gun the
safety mechanism in its motion, pushes the switch arm over to the right sear,
and is there retained by the spring bolt. When about to fire the safety mechanism
s again moved forward out of the way. If now fired, with the pulling of the
rigger the switch arm is also lifted clear of the spring bolt, and attempts to pass

page_text: to the left sear, but is arrested and held by the upwardly standing peg upon the
finger pull lever, as before described, during the recoil action after which upon
the trigger reaching its lowest point, the peg is clear of the arm, and the latter
passes over to the left sear ready for firing.
Should it be desirous to fire the left barrel first, the switch arm is readily
thrown over to the left sear by withdrawing the retaining spring bolt.
Dated this 14th day of Decomhar 1808
Improvements in Single Trigger Double Barrel Guns.
We, CHARLES OSBORNE ELLIS and EDWARD WILLIAM WILKINSON, trading as
Charles Osborne and Company, of 12 and 14, Whittall Street, in the City of
Birmingham, Gun Manufacturers, and WILLIAM JERMAN, of Hazelwood Road,
Acock's Green, near the City of Birmingham, Gun Action Filer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to improvements in single trigger double barrel guns,
and more particularly such guns wherein a switch arm is made to travel from
beneath the one sear to a similar position beneath the other sear.
In order to more clearly explain this our invention we have appended hereunto
an illustrative sheet of drawings upon which are figures and numbers of refer-
ence, similar numbers referring throughout the several parts to the same thing.
Fig. 1, is a side view, and Fig. 2, is a general plan view of the invention, both
showing the switch arm in position to fire the right barrel.
Fig. 3, shows the switch arm in the intermediate position.
Fig. 4, shows the switch arm in position to fire the left barrel.
Fig. 5, is a side view, and Fig. 6, a plan view of the compound trigger in which
the finger lever portion is shown in its normal position.
Fig. 7, shows the finger lever in its raised position.
Fig. 8, is a detail view of switch arm spring catch.
Referring to the drawings:-10, is the trigger plate, 11, shows a portion of
the trigger guard broken off. 12, is the right hand sear lever, 13, is the left hand
sear lever. 14, is the safety slide which is operated in the usual manner by the
external thumb piece 15. 16, is a switch arm pivoted at 17, to the upper side
of the trigger body 18. 19, is the finger trigger lever which is pivoted to the
trigger body at 20, and is pushed downward by spring 21.
According to this invention the trigger is made of a compound form, that is,
of two parts, consisting of the major part of the usual trigger body 18, and a
finger trigger lever 19, which is pivotwise attached to the trigger body at 20,
and lies immediately beneath it. A certain amount of movement is permitted to
this finger lever 19, in addition to and independently of the motion of the trigger
body 18, that is, upon the pull of the finger lever a given distance is traversed
before it raises the trigger body. The said finger lever is pushed downward from
the trigger body by spring 21. An upper part of this finger lever in the shape of
a peg 22, is provided with a passage 23, through the trigger body so as to pro-
trude upon the upper side as seen in Figs. 6 and 7, in the first part of the pull
of the finger lever. The continued pull of the said lever then raises the trigger
body.

page_text: Upon the upper side of the trigger body is the pivoted arm 16, (or a slide may
be used) which may be moved to a position beneath either of the sear levers 12
& 13. This arm 16, is pushed over to the right as shown in Fig. 2, by the cam 24,
in the rearward "safety movement of the slide 14, and in the reverse direction
by the spring pusher 25. This arm when pushed beneath the right hand sear 12,
is there locked by the spring catch 26, (a detailed side view of which is shown in
Fig. 8). This spring is operated by means of the lever 27, pivoted at 28, so that
by an upward pressure upon lever at 27, depresses the spring catch 26, and per-
mits the pusher 25, to push the arm 16, over to the left. In its movement from
left to right the arm 16, rides over inclined surface 29, of spring 26, and depresses
it in order to allow it to pass over, until locked, as seen in Fig. 2.
Its action may now therefore be thus stated:-When firing the right barrel
the arm 16, is raised above the spring 26, and when thus free therefrom is thrown
over towards the other side by the pusher 25, but is stopped midway by reason of
the projection 30 thereon, coming in contact with the aforesaid upwardly pro-
truding peg 22, upon the finger lever 19. The arm is thus held from further move-
ment to the left as seen in Figs. 3 and 7, until the finger lever 19, has been
allowed again to fall to its full extent, as seen in Figs. and 5. In the recoil
action from first firing, this full fall of finger lever does not take place, but the
finger lever is involuntarily again raised, which however as before stated does not
permit the arm to proceed to its position beneath the left sear. When however
the recoil action has taken place and the finger lever loosed, it assumes its lowest
position, as seen in Figs. 1, 4 and 5, and in doing so the upwardly standing
peg 22, is brought below the arm, when the latter at once passes over to the left
sear 13, as seen more particularly in Fig. 4.
Should it be desirous to fire the left barrel first, the switch arm is readily
thrown over to the left sear by withdrawing the retaining spring catch 26, by
raising the lever 27.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. The combination in single trigger deuble barrel guns with trigger body 18,
having switch arm 16, or its equivalent of finger lever 19, having arresting
peg 22, and spring 21, constructed and operating substantially as set forth and
shown on the drawings.
2. The doubled membered trigger in which is carried an arresting peg 22
supported by finger member 19 during recoil action, but capable of independent
movement into retirement under action of spring 21, all substantially as set
forth and for the purposes specified.
Dated this 31st day of Lulu 1200
CHARLES T. POWELL,
Applicants' Agent, 158, Edmund Street, Birmingham.
CHARLES T. POWELL,
Applicants' Agent, 158, Edmund Street, Birmingham.