Improvements in Double Barrel Single Trigger Guns and Rifles.
Year: 1895

page_text: Date of Application, 11th Nov., 1895
Complete Specification Left, 25th July, 1896-Accepted, 29th Aug., 1896
PROVISIONAL SPECIFICATION.
Improvements in Double Barrel Single Trigger Guns and Rifles.
We, FREDERICK JAMES PENN, of No. 117 Linwood Road, Handsworth, in
the County of Stafford, Gun Action Maker, and JOHN DEELEY, the elder, of
No. 82 High Street, Birmingham, in the County of Warwick, Gun Manufacturer,
do hereby declare the nature of this invention to be as follows:
Our invention has reference to double barrel single trigger guns and rifles, that
is, to guns and rifles having two barrels which may be fired in succession by
pressure of the finger on a single trigger; and our said invention consists of the
construction and combinations or arrangements of parts hereinafter described of
the single trigger mechanism of the said guns and rifles.
According to one of our improvements we construct and arrange the parts in
the following manner. On one of the sears which we will call the first sear is'a
Bliding piece capable of a limited longitudinal motion and urged by a spring
through a small horizontal lever towards the breech of the barrels. The said
sliding piece carries at its operating or tail end two projections or pins and the
other sear which we will call the second sear curries a sliding piece with two
projecting pins. The rear pin of the sliding piece of the first sear occupies the
recess between the two pins of the sliding piece of the second sear and the front
pin of the said sliding piece of the said second sear occupies the recess between
the two pins of the sliding piece of the first sear so that when the sliding, piece
of the first sear is moved longitudinally in one or other direction the sliding piece
of the second sear is moved by it through the engagement of the pins hereinbefore
referred to. The blade of the trigger is provided with a notch or cut away part
immediately behind the acting part of the said blade.
When the parts are in their normal positions, that is, when the gun is charged
and ready for firing the sliding piece of the first sear is in its pressed back position
being pressed and held in that position by the cocked hammer of the barrel which
the first sear discharges and the rear pin of the said sliding piece is situated over
the acting part of the blade of the trigger. When the trigger is pressed by the
finger it raises the first sear through the rear pin of the sliding piece carried by
the said first sear and discharges the first barrel. The sliding piece of the first
sear being no longer pressed back by its hammer would be urged forward by the
action of its spring lever but for the engagement of the rear pin of the sliding
piece of the second sear with the notch hereinbefore referred to in the blade of
the raised trigger. On the release and fall of the trigger the sliding piece being
no longer retained is urged forward and carrying the sliding piece of the second
Bear with it brings the rear pin of the sliding piece of the said second sear over
the acting part of the blade of the trigger. On the trigger being again pressed
the second scar is raised and its barrel discharged. On the reloading of the gun
and shutting down of the breech ends of the barrels the parts are again brought
into their normal positions.
According to another of our improvements the sliding piece of the second sear
of the arrangement hereinbefore described is dispensed with and a cranked lever
substituted therefor. On the discharge of the first barrel and release of the
trigger the advance motion of the sliding piece of the first sear operating on one
arm of the said cranked lever causes the other arm to project a pin from a cross

page_text: '
hole in the tail of the second sear which pin is thereby brought within the range
of the trigger.
According to another of our improvements we provide the inner side of the
sliding piece carried by the first sear with one pin or projection only and we fix on
the outer side of the second sear a spring terminating in a pin passing through a
hole crossing the rear or tail end of the said second sear and projecting therefrom.
The fixed pin on the sliding piece of the first sear, when the gun is charged and
ready for firing, bears against the end of the spring pin of the second sear and
holds its back. On the discharge of the first barrel the sliding piece being urged
forward by means of its spring the pin of the said sliding piece is no longer
opposite the spring pin of the second sear. The said spring pin being urged out
of the hole in the second sear by its spring is brought within the range of the
trigger, which on being again pressed discharges the second barrel. On the
reloading of the gun and shutting down of the breech ends of the barrels the parts
are again brought into their normal positions.
Instead of urging the sliding piece forward on the firing of the first barrel by
the action of a spring pressed lever a spring acting directly on the sliding piece
may be employed for that purpose.
According to another of our improvements a sliding frame on the trigger plate
urged forward by a spring has at its rear a projection on each side one of the
said projections being in advance of the other. The rear part of the said sliding
frame is hinged or pivoted to the front part. When the gun is loaded and ready
for discharge one of the projections is under the tail of one of the sears, and the
pressure of the finger on the trigger raising the rear part of the said frame the
Bear is operated and the barrel in connection therewith discharged. The said
frame no longer held back is advanced by its spring, by which action the
projection on the other side is brought under the tail of the other sear which
can now be operated upon by the trigger and the discharge of the other barrel
effected.
By a slight modification of the last described improvement, double barrel guns
originally constructed to operate with two triggers can be readily converted into
double barrel guns operating with one trigger. We modify the mechanism last
described by making the sliding frame described engage by its advancing motion
with a slot in the blade of each trigger, when the mechanism can only operate on
the two sears in the way already described.
Dated this Eleventh day of November 1895.
W. T. WHITEMAN,
Agent for the Applicants.
"
COMPLETE SPECIFICATION.
Improvements in Double Barrel Single Trigger Guns and Rifles.
We, FREDERICK JAMES PENN, of No. 117 Linwood Road, Handsworth, in
the County of Stafford, Gun Action Maker, and JOHN DEELEY, the elder, of
No. 82 High Street, Birmingham, in the County of Warwick, Gun Manufacturer,
do hereby declare the nature of our invention and in what manner the same is 'to
be performed to be particularly described and ascertained in and by the following
statement :-
Our invention has reference to double barrel single trigger guns and rifles, that
is, to guns and rifles having two barrels which may be fired'in succession by pressure
of the finger on a single trigger; and our said invention consists of the construction
and combinations or arrangements of parts hereinafter described of the single
trigger mechanism of the said guns and rifles..
According to one of our improvements we construct and arrange the parts in the
following manner. On one of the sears, which we will call the first sear, is a sliding

page_text: piece capable of a limited longitudinal motion and urged by a spring through a
small horizontal lever or other equivalent arrangement towards the breech of the
barrels. The said sliding piece carries at its operating or tail end two projections
or pins and the other sear, which we will call the second sear, carries a sliding
piece with two projections or pins. The rear pin of the sliding piece of the first
Bear occupies the recess between the two pins of the sliding piece of the second
scar and the front pin of the said sliding piece of the said second sear occupies the
recess between the two pins of the sliding piece of the first sear so that when the
sliding piece of the first sear is moved longitudinally in one or other direction
the sliding piece of the second sear is moved by it through the engagement of
the pins hereinbefore referred to. The blade of the trigger is provided with a
notch or cut away part immediately behind the acting part of the said blade.
When the parts are in their normal positions, that is, when the gun is charged
and ready for firing the sliding piece of the first sear is in its pressed back position
being pressed and held in that position by the cocked hammer of the barrel which
the first sear discharges and the rear pin of the said sliding piece is situated over
the acting part of the blade of the trigger. When the trigger is pressed by the
finger it raises the first sear through tho rear pin of the sliding piece carried by the
said first sear and discharges the first barrel. The sliding piece of the first sear
being no longer pressed back by its hammer would he urged forward by the action
of its spring lever or equivalent mechanism but for the engagement of the rear pin
of the sliding piece of the second sear with the notch herein before referred to in
the blade of the raised trigger. On the release and fall of the trigger the sliding
piece being no longer retained is urged forward and carrying the sliding piece of
the second sear with it brings the rear pin of the sliding piece of the said second
sear over the acting part of the blade of the trigger. On the trigger being again.
pressed the second sear is raised and its barrel discharged. On the reloading of
the gun and shutting down of the breech ends of the barrols the parts are again
brought into their normal positions.
Figures 1 to 9 both inclusive of the accompanying drawings represent this
arrangement of our invention.
Figures 1 and 2 represent the single trigger mechanism in elevation and plan
(both partly in section) respectively when both hammers are in their cocked
position and Figures 3 and 4 represent similar views after the discharge of the
first or right hand hammer, the second or left hand hammer only being in its cocked
position.
Figures 5 to 9 both inclusive represent some of the parts detached as hereinafter
described.
The same letters of reference indicate the same parts in the several figures of
the drawings.
a and b are the first and second or right and left hand sears of the single-trigger
mechanism, the said scars being represented detached in Figures 6 and 8, and
c, d are the respective sliding pieces carried by the same.
The sliding piece o
(shown separately in Figure 7) of the first or right hand sear a extends from near
the front end of the said sear to near the rear end of the same and the tail end e¹
of the said sliding piece c engages and works in a slot a' (see Figure 3) in the rear
end of the said scar a being limited in its motion in the said slot a' by the fixed pin e
which occupies, in the normal position of the parts, the front end of the longitudinal
guide way in the tail c¹ of the sliding piece c. The sliding piece d (shown
separately in Figure 9) of the other or left hand sear occupies and works in a
slot in the rear end of the said sear b being limited in its motion by the fixed pin e¹
situated in the normal position of the parts at the front end of a slot f¹ in the
sliding piece d. The sliding piece d is urged forward when at liberty to move by
the spring g situated on a guiding rod or pin at the rear end of the sliding
piece d. The tail end c' of the sliding piece c has on its inner side two horizontal
pius or projections c³, and the sliding piece d has on its inner side two horizontal
pins or projections d', d. The front pin of the sliding piece c bears against the

page_text: front side of the pin or projection.d of the sliding piece d of the left hand sear and
the rear pin c³ of the sliding piece c of the right hand sear is situated in front of,
but not in contact with, the rear pin d' of the sliding piece d of the left hand sear..
When the hammers k, 2 are forced back into their cocked position by the opening
of the breech ends of the barrels as usual, the hammer of the right hand barrel
comes in contact with the nose of the sliding piece c and forces and holds it in its
back or normal position Figures 1 and 2 until the right hand barrel has been
discharged. The said sliding piece c when pushed back into its normal position
acting through its pin e forces the sliding piece d of the left hand sear into its
normal position Figures 1 and 2 and compresses the spring g. When the parts are
in these their normal positions the acting part of the blade of the trigger his
Bituated under the pin c³ of the sliding piece c of the right hand scar and on the
pressure of the finger on the trigger the said acting part 1 pressing under the
pin raises the sear a into the dotted position indicated in Figure 1 and effects
the discharge of the right hand hammer. During this operation the rear pin d³ of the
sliding piece d occupies the notch in the blade of the trigger immediately
behind the acting part h¹ of the said trigger (see the separate view Figure 5) and
is preserved in its normal position. The sliding piece is further secured in its
non-acting position during the firing of the right hand barrel by the fixed stop i
secured to the side of the lump on the trigger guard plate 12. On the release and
fall of the trigger, the sliding piece c being no longer held back by the right hand
hammer is urged forward by the motion of the sliding piece d acting through the
pin the said sliding piece d being operated by the spring 9. The parts now
occupy the respective positions represented in Figures 3 and 4. By the motion of
the sliding piece d last described its rear pin d³ is brought over the acting part h
of the blade of the trigger h so that on the next pressing of the trigger the left
hand sear b is raised and the hammer discharged.
According to another of our improvements the sliding piece of the second sear of
the arrangement hereinbefore described and illustrated is dispensed with and a
cranked lever substituted therefor. On the discharge of the first barrel and release
of the trigger the advance motion of the sliding piece of the first sear operating on
one arm of the said cranked lever causes the other arm to 'project a pin from a
cross hole in the tail of the second sear which pin is thereby brought within the
range of the trigger.
This arrangement of our invention is represented in Figures 10 to 17 both
inclusive of the accompanying drawings.
Figure 10 represents an elevation of the right hand side of the single trigger
mechanism both hammers being cocked and Figures 11 and 12 represent the same
respectively in plan and horizontal section, the former also being partly in hori-
zontal section; Figure 13 is a similar view to Figure 10 the whole of the mechanism
for the discharge of the right hand hammer, excepting the pinse, of the sliding piece c
being omitted, and' Figure 14 is a similar view to Figure 13 after the discharge of
the right hand hammer: Figure 1 is an elevation of the left hand side of the
single trigger mechanism, the trigger being in its raised position and the right band
hammer discharged; Figure 16 is a plan (partly in section) of the sear mechanism
Figure 15; Figure 17 is a horizontal section through the sears after the discharge
of the right hand hammer and fall of the trigger.
In the said mechanism Figures 10 to 17 both inclusive, a cranked lever d, d² for
the left hand sear is substituted for the sliding piece d in Figures 1, 2, 3, 4
and 9. The said cranked lever d, d turns on the pin e. A flat plate spring g on
the inner side of the sear bacts upon a projection on the arm d³ and tends to
turn the cranked lever ou its pin or centre e¹. The arm d of the oranked lever d, d²
engages with a pin d³ situated in a cross hole in the tail end of the sear 6 aud in
the normal position of the parts, that is, when both hammers are cocked the said
pin dis wholly within the cross hole in the tail end of the sear 6 as is best seen in
Figure 12, but on the discharge of the right hand hammer and release of the
trigger the sliding piece being no longer kept back by the right hand hammer k,

page_text: the spring g acting on the projection d' effects the turning of the cranked lever d, d
on its pin or centre e'; the arm d' urges the sliding piece c forward and the arm d
causes the pin, to cross the path of the blade of the trigger h; the parts now
occupying the respective positions represented in Figures 14 and 17, so that on the
next lifting of the trigger the left hand scar will be raised and its hammer
discharged.
Parts marked in the said Figures 10 to 17 both inclusive not referred to in the
description of this arrangement correspond with and have a similar function to like
parts in the arrangement Figures 1, 2, 3 and 4.
Instead of employing a spring g acting directly on the sliding piece d of the left
band sear 6 as represented in Figures 1,23 and 4, or acting directly on the cranked
lever d, d as in Figures 10 to 17 both inclusive, a spring g acting on a short
horizontal lever m engaging with and operating on the sliding piece c of the right
hand sear a may be employed as represented in Figures 18 and 19: Figure 18
represents the parts in their normal positions and Figure 19 represents the same
after the discharge of the right hand hammer and fall of the trigger. In this
arrangement the sliding piece c has a supplementary pine for effecting the turning
of the cranked lever d, d in its forward motion or for advancing the sliding piece
of the second or left hand sear b when used with the arrangement first described
and represented.
According to another of our improvements we provide the inner side of the
sliding piece carried by the first sear with one pin or projection only and we fix on
the outer side of the second sear a spring terminating in a pin passing through a
hole crossing the rear or tail end of the said second sear and projecting therefrom.
The fixed pin on the sliding piece of the first sear, when the gun is charged and
ready for firing, bears against the end of the spring pin of the second sear and
holds it back. On the discharge of the first barrel the sliding piece being urged
forward by means of its spring the pin of the said sliding piece is no longer
opposite the spring pin of the second sear. The said spring pin being urged out of
the hole in the second sear by its spring is brought within the range of the trigger,
which on being again pressed discharges the second barrel. On the reloading of
the gun and shutting down of the breech ends of the barrels the parts are again
brought into their normal positions.
This arrangement of our invention is represented in Figures 20 and 21, Figure 20
showing the relative positions of the parts when both hammers are cocked and
Figure 21 showing the relative positions of the parts after the discharge of the
first or right hand hammer.
The sliding piece c of the right hand sear a is provided with a spring g on its
rear end for urging the said sliding piece c forward on the firing of the right hand
hammer by the first operation of the trigger h. The said sliding piece c has one
projection only marked which in the normal position of the parts is situated over
the acting part of the blade of the trigger h and opposite a cross hole in the tail
end of the left hand sear 6. In this cross hole a pin connected to the end of a
spring d on the outer side of the sear bis situated and works. The said pin d
when the parts are in their normal positions is pressed and kept in its back position.
out of the path of the blade of the trigger h by the pin as will be seen. by
reference to Figure 20, but on the discharge of the right hand hammer the slide c
being urged forward by its spring 9 and its pin. being no longer opposite the
crosshole in the tail end of the sear b the pin d³ takes the position represented in
Figure 21 and is situated over the acting part of the trigger h. On the next
operation of the trigger the pin d' being acted upon by the said trigger the tail end.
of the sear b is raised and the lelt hand hammer discharged.
In order to permit of the discharge of the left or right hand barrel first at the
pleasure of the user of the gun we make the additions hereinafter described and.
represented in Figures 22, 23, 24 and 25 to the single trigger mechanisms
constituting our invention.
The additional mechanism consists of a lever r, r³ (shown separately in

page_text: 7.2
Figure 25) jointed at & to a spring pressed slides. The said lever 1, 2 acts as an
intermediary between the trigger h and the sears a, b. The acting end of the
intermediary lever r, 2 in its normal position is situated under the pin or
projection of the slide of the right hand sear a as seen in Figure 24 and the
barrels are discharged in the order herein before described. The acting end of
the lever r",
may be brought under the projection d³ of the slide of the left hand
sear before either of the barrels are discharged, so that on the pressure of the
trigger the left hand scar band its barrel.shall be discharged first, by the operation
of a small thumb lever t, t, t jointed at u to the trigger guard plate. The said
small lever t, t, when operated by the thumb presses back the spring slide & until
its end t engages in a notch s in the said slides (see Figure 22). The motion of
the slide s carries the intermediary lever r, into its back position in which
position the acting end of the lever, is situated under the projection d' of the
slide of the left hand sear b.
When it is wished to fire the left hand barrel first, the small lever t, t', ¿² is
pressed by the thumb into the position represented in Figure 22 when the other
parts occupy the respective positions represented in the said Figure 22. On the
pressing of the trigger and the turning thereby of the intermediary levor r, 2 on
its centres the sear bis raised and its barrel discharged: On the release of the
trigger the tail end of the sear 6 coming in contact with the end of the
levert, t¹, its end is disengaged from the notch s in the slides and the said
slides together with the intermediary lever r, r² move forward into the position
proper for the discharge of the right hand barrel on the next pressure of the
trigger.
When it is wished to discharge the right hand barrel first the thumb
levert, is unoperated that is, the parts are left in their normal positions
represented in Figure 24.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that we
claim as our invention of "Improvements in double barrel single trigger guns
and rifles" ;-
First. In single trigger mechanism for double barrel guns and rifles the construction
and arrangement or combination of parts hereinbefore described and illustrated in
Figures 1 to 9 both inclusive of the accompanying drawings, the said construction
and arrangement of parts consisting essentially in combining with the sears, sliding
pieces having projections on their inner sides the front projections engaging
together so that the sliding motion of the sliding piece of one sear effects the
sliding of the sliding piece of the other sear, the rear projections being situated a
short distance apart and being so arranged with respect to the acting part of the
blade of the trigger that the rear projection of the sliding piece of one sear is
within the path of the said trigger when the sliding pieces are in their back position
and the rear projection of the sliding piece of the other sear is within the path of
the said trigger when the sliding pieces are in their forward position substantially
as hereinbufore described and illustrated.
Secondly. The modified construction and arrangement or combination of parts
hereinbefore described and illustrated in Figures 10 to 19 both inclusive of the
accompanying drawings the said modified arrangement consisting essentially in the
substitution for the sliding piece of the second sear, of a oranked lover and a
horizontal pin working in a cross hole in the tail end of the said second sear with
which horizontal pin one of the arms of the cranked lever is engaged, the said
cranked lever and the horizontal pin being so arranged that in the normal position
of the parts the said pin is within the cross hole and consequently out of the path
of-the trigger, the said cranked lever on the firing of the first barrel and forward
motion of the sliding piece of the first sear turning and so moving the horizontal
pin that one of its ends projects over the acting part of the trigger substantially
as and for the purpose herein before described and illustrated.

page_text: Thirdly. The construction and arrangement or combination of the parts of
single trigger mechanism herein before described and illustrated in Figures 20
and 21 of the accompanying drawings, the said construction and arrangement of
parts consisting essentially in combining with the first sear a sliding piece having
at its tail end one projection only and combining with the other sear a spring
pressed pin which when the sliding piece of the first sear is in its back position, is
pressed into the cross hole in the tail end of the second sear so as to be out of
action, the said spring pressed pin on the firing of the first barrel and subsequent
motion of the sliding piece of the first sear being urged out of the hole in the
second scar and made to cross the path of the trigger substantially as and for the
purpose hereinbefore described and illustrated.
Fourthly. The addition to or combination with mechanisms of the kinds claimed
in the prior claims, of a lever arranged between the trigger and the sears, the said
intermediary lever being carried by a spring pressed slide which may be operated
by a small thumb lever before the discharge of the guu so as to cause the acting
end of the intermediary or sear operating lever to come under the projection ou
the slide of the left hand sear instead of remaining under the projection of the
slide of the right hand sear substantially as and for the purpose hereinbefore
described and illustrated in Figures 22, 23, 24 and 25 of the accompanying
drawings.
Dated the Twenty-second day of July 1896.
FREDERICK JAMES PENN.
JOHN DEELEY, SENR.