Improvements in Guns, Rifles, and Pistols.
Year: 1895

page_text: Date of Application, 26th Jan., 1895
Complete Specification Left, 26th Nov., 1895-Accepted, 28th Dec., 1895
TTIVATION.
Improvements in Guns, Rifles, and Pistols.
WILLIAM PALMER JONES 25 Whittall Street Birmingham Gun Maker and
WILLIAM BAKER 10 Smith Street Birmingham, Gun Lock Maker do hereby
declare the nature of this invention to be as follows:-
Our invention relates to guns, rifles and pistols in which more than one barrel
may be fired by one trigger only and is an improvement on Bentley and Bakers
single trigger mechanism Specification Number 4766-1882.
In the said Bentley and Bakers mechanism both barrels when loaded were liable
to be simultaneously discharged in the act of firing the first, and which occurred
in consequence of an imperceptible and involuntary movement of the finger upon
pulling the trigger and caused by the recoil.
In order to reinedy this defect we provide an intermediate pull of the trigger by
means of a cam or scear actuated by a spring, and which lies in the path of the
slide or lever attached to the trigger so as to prevent the trigger gearing with the
scear of the second lock until the involuntary pull of the trigger caused by
the recoil has taken place.
We thus have three distinct pulls in order to release the tumblers of the locks
when the arm is not loaded, but when loaded and fired there are only two
perceptible pulls same as in ordinary double trigger guns, rifles, and pistols.
Dated this 24th day of January 1895,
As a FistoTS.
We, WILLIAM PALMER JONES of 25 Whittall Street, Birmingham, Gun Maker
and WILLIAM BAKER of 10 Smith Street, Birmingham, Gun Lock 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 double barrelled guns, rifles and other small arms,
having a single trigger for intermittently discharging both barrels, and is an
improvement upon single trigger mechanism described in the Specification of
Letters Patent granted to Bentley and Baker (the latter being one of the present
applicants) for improvements in single trigger mechanism for double barrel guns
and numbered 4766 year 1882.
In the said Bentley and Baker mechanism and other mechanism of a kindred
character, both barrels, when loaded were liable to be simultaneously discharged in
the act of firing one barrel, which was caused by an imperceptible and involuntary
second movement of the finger principally occasioned by the recoil.
We are aware that intermediate release mechanism has been employed so that
the second and involuntary pull has been rendered ineffective by an interceptor
which prevents the discharge of the mechanism of the second barrel until a third
pull has taken place.

page_text: According to our improvements, a lever slide, which is carried and operated by
the trigger blade, is made to have two intermittent traversing movements prior to
a second lug on the said slide being brought under the second hammer sear.
Thus
the lever slide has upon its opposite sides, a pair of lugs, that on the one side
being set back rear or forward of that on the other side, and one adapted to come
under the hammer sear tail of the one barrel ou the cocking of the arm and the
other adapted to come under the hammer sear tail of the other barrel after the
second and involuntary release pull of the trigger.
Connected with the lever slide is a jointed sear or cam for effecting the inter-
mediate release, and pressed home by a spring and with the end adapted to engage
with a bent in the slide which has also upon its presented side, a teat or stud which
is brought opposite a like teat or stud on the underside of the sear by the first
discharge, so that on the second and intermediate pull on the trigger, the two teats
being together, the sear is lifted and its end taken out of bent with the slide,
which is then released and made to take a second traverse and bring the lug upon
the other side under the hammer sear tail of the second barrel, which lies in the
path of the said lug when lifted by the trigger.
Thus, in our improved mechanism, three distinct pulls of the trigger are required
for the positive intermittent discharge of the two barrels, although it will be
understood that generally only two perceptible pulls occur, as the intermediate
release pull is effected by an involuntary reaction movement occasioned by
recovery of the touch of the finger after the re-coil.
Figure 1 of the accompanying drawings represents a single trigger double-
barrelled hammer gun provided with intermediate release mechanism for preventing
the simultaneous discharge of both barrels by the first pull of the trigger. The
said view is representative of the right hand side of the guu (the whole of the left
hand side being broken away) as the hammer on that said side only, carries a stud
which controls the first position of the slide.
Figure 2 represents a horizontal section of the gun, showing the hammers, and
the positions of the hammer sears and their tails relative to the lugs on the lever
slide and also the stud on the tumbler of the right-hand hammer for holding forward
the slide.
Figure 3 represents a left hand side elevation of the slide separately and
Figure 4 is a topside plan of the same.
Figure 5 is an elevation and underside edge view of the intermediate release
sear.
Figure 6 represents an elevation of the trigger and trigger post with the strap
and the rocking post to which the lever slide is jointed.
Figure 7 is a topside plan of Figure 6.
Figure 8 is an elevation of the left hand lock, and
Figure 9 is a plan of the same.
Figure 10 represents the lever slide and intermediate release or intercepting sear
in the relative positions which they assume after the discharge of the first
barrel.
Figure 11 represents our improvements as applied to a single-trigger hammerless
double barrel gun.
Figure 12 represents the slide and interceptor in the relative positions which
they assume after the discharge of the right barrel.
The same letters of reference indicate corresponding parts in Figures 1 to 10 of
the drawings.
a is a lever slide, with the rear part a¹, working and sliding within a longitudinal
guide gap, in the blade 62, of a single trigger b, fulcrumed at 63, to the trigger
post c, carried upon the inside of the strap c. The said slide which is pivoted
at a², to a rocking post e, jointed at e', to the said strap c, is adapted to lift the
tail d' of the right hand hammer sear d, and the tail d², of the left hand hammer
sear d³, through the medium of lugs a³, a', located respectively upon the opposite
sides of the slide and one in advance of the other.

page_text: The said lever slide has a bent a', a shoulder a®, and a teat or stud a', upon its
upper edge, whilst the rocking post e, pivoted, as aforesaid, to the strap, is impelled
rearwards by acting in opposition to the force of a spring &², whose free end acts
upon a heel of the said arm, situated out of the centre, so that normally the said
arm is constrained to move backwardly, so as to first put the lever slide in bent
with the interceptor sear f, which is hung or jointed at 72, whilst its nose end f³,
engages with the bent as, in the lever slide and the teat or stud f4, on its underside
comes opposite the teat or stud a', of the slide after the first pull of the trigger.
The said sear is kept down upon the top edge of the slide by a spring 9.
The right hand tumbler h, on the axis h, of the hammer or cock ², has an
outstanding stud h³, which, on travelling forward in the direction of the arrow
Figure 2 on the cocking of the arm, places the slide in a position in which the
lug a³, comes under the sear tail d', whilst the lug a', lies clear of the sear tail d².
When the parts are in this position, the pulling of the trigger discharges the right
hand barrel.
Assuming the arm has been cocked, and the lever slide taken into the position
represented in Figures 1 and 2, on now pulling the trigger b, the right hand
O hammer falls and by so doing takes the stud h³, away from the shoulder a³, of the
slide, which, now being free, is impelled rearwards by the rocking lever e, and is
then caught by the interceptor sear f, whose end f³, engages with the bent a. This
rearward traverse of the slide has taken the teat a', of it opposite the teat f4, of the
interceptor sear when the second and involuntary pull occurs and again-lifts the
5 slide and takes the nose of the interceptor.sear out of the bent in the slide, which
now makes a further and final rear traverse, bringing the lug at, under the sear
tail d², of the left hand barrel, when by giving a third pull to the trigger, the
second and left hand barrel is discharged.
1
The re-cocking of the right hand hammer takes the slide back to its normal
position.
In Figures 11 and 12, a is a lever slide, working within a longitudinal guide gap
in the blade 62, of the trigger b, pivoted to the trigger post, and with its forward
end jointed at a², to a rocking post e, turning about the centre 2, and impelled
forward by a spring e³. This said slide has a teat or stud a', a bent a, which
engages with the hook end 3, of the spring-actuated intercepting searf, mounted
at, and provided with a spring g, aud a side stud f h is the right hand
hammer turning on a centre ', and having a bent 3, with which a sear nose
engages. This hammer has a shoulder or lug, which impinges against the
front edge e, of the rocking post e, so that as the hammers are cocked, the
slide is made to recede by the back of the head of the right hand haminer h
pressing the rocking lever back and bringing the lug a³, upon the right hand
side of the slide under the tail of the hammer sear of the right hand lock.
The trigger is now pulled and when the hammer falls, then the pressure of the
spring of the rocking lever turns the same in the direction of the arrow, when
the slide is advanced by the force of the spring and is then intercepted by the
bent a, engaging with the hook f³, of the sear.
opposite the teat or stud, of the sear f, (as represented in Figure 12) and the
This brings the teat or stud a
involuntary and middle pull then lifts the sear and brings the left hand lug a',
under the sear tail of the left hand barrel or lock, ready for the third pull of
the trigger for firing the second barrel.
Having now particularly described and ascertained the nature of our said
nvention, and in what manner the same is to be performed, we declare that what
ve claim is :-
:-
First. In the lock mechanism of single-trigger double-barrelled small
Altma

page_text: preventing the simultaneous discharge of both barrels on the first pull of the
trigger by a jointed and spring-actuated intercepting sear, a part of which is
adapted to engage with a bent in the lever slide whilst a teat or equivalent
carried by it is adapted to come in front of a like teat or equivalent on the
said slide after the discharge of the first barrel, substantially as described and
set forth.
Secondly. In the lock mechanism of single-trigger double-barrelled small arms,
the combination with a single trigger, of a slide or a lever slide (partly controlled
by a hammer in one direction and by a spring or a spring-actuated rocking arm
in the other direction) having a bent, teat, shoulder and lugs, and an interceptor
sear hung above it for intercepting and giving the intermediate release to the
said slide, substantially as and for the purpose described and set forth.
Thirdly. The general construction, arrangement and combination of the parts of,
and means for operating, the lock mechanism of single-trigger double-barrelled
small arms for preventing the simultaneous discharge of both barrels on the first
pull of the trigger, substantially as described and set forth in Figures 1 to 10.
Fourthly. The general construction, arrangement and combination of the parts
of, and means for operating, the lock mechanism of single-trigger double-barrelled
hammerless small arms for preventing the simultaneous discharge of both barrels
on the first pull of the trigger, substantially as described and set forth in
Figures 11 and 12.
Dated this 25th day of November 1895.
WILLIAM PALMER JONES,
WILLIAM BAKER,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicants.