Improvements in Double Barrelled Guns or Small Arms.
Year: 1889

page_text: „Complete Specification LEIL, 2010 NOV., 1009 Accepted, (IN DEC. 100J
PROVISIONAL SPECIFICATION.
Improvements in Double Barrelled Guns or Small Arms.
I EDWIN BAYLEY DARVALL of Marlesford Hall Wickham Market in the County
of Suffolk Esquire do hereby declare the nature of this Invention to be as follows:—
The object of our Invention is to provide means whereby both barrels of a double
barrelled fire arın can be fired one after the other or at intervals by the same trigger.
This may be effected by so combining the trigger with the sear springs that on the
first part of the triggers movement it acts on the sear spring in connection with the
haminer of one of the barrels and on the further or second part of the triggers move-
ment it acts on the soar spring in connection with the hammer of the other of the
barrels, or the trigger after acting to discharge one of the barrels may be released or
allowed or caused to spring back and in so doing to act on a lever or device which
disengages the trigger or diverts its acting path from the sear spring of the discharged
barrel and puts the said trigger in connection with or in the path for acting on the
sear spring of the undischarged barrel.
We may prevent the simultaneous or too quickly following discharge of the two
barrels by leaving sufficient space for movement of the trigger between the two
operations or by any convenient mechanical device which would attain the same end.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.
fun nuova
Improvements in Double Barrelled Guns or Small Arms.
I EDWIN BAYLEY DARVALL of Marlesford Hall Wickham Market in the County
of Suffolk Esquire do hereby declare the nature of this invention and in what manner
the saine is to be performed to be particularly described and ascertained in and by the
following statement:—
The object of my Invention is to provide means whereby both barrels of a double
barrelled fire arm can be fired one after the other or at intervals by the same
trigger.
This may be effected by so combining the trigger with the sear springs that on the
first part of the trigger's movement it acts on the sear spring in connection with
the hammer or striker of one of the barrels and on the further or second part of the
triggers movement it acts on the sear spring or connection with the hammer orstriker
of the other of the barrels, or the trigger after acting to discharge one of the
barrels inay be released or allowed or caused to spring back and in so doing to act on
a lever or device which disengages the trigger or diverts its acting path from the sear
spring of the discharged barrel and puts the said trigger in connection with or in the
path for acting on the sear spring of the undischarged barrel.
I may prevent the simultaneous or too quickly following discharge of the two
barrels by leaving sufficient space for movement of the trigger between the two
operations or by any convenient mechanical device which would attain the same end.
And in order that my Invention may be clearly understood I will describe with
reference to the accompanying drawings a simple mode or inethod of carrying out my
Invention preinising however that I do not restrict inyself to the details of construction
hereinafter described and illustrated.
Figure 1 represents in side elevation a trigger plate and trigger constructed and
arranged according to my Invention and Figures 2 and 3 are plans showing the

page_text: triggor in its two positions. A is the trigger plato on the inner face of which there
is provided a lump or projection B to which is pivotted so as to be capable of turning
in a horizontal direction a stud or piece (. To the ho nd of this stud or piece ( is
connected by means of the hinge pin d the trigger 1) so that the trigger in addition
to its ordinary vertical motion on the pin d is also capable of being oscillated or
moved horizontally or sideways the stud constituting the contro on which it turns.
The slot a in the trigger plate A is of sufficient width to admit of the trigger being
inoved sideways into position to act on either of the soars (as required) in connection
with the two hammers or strikors.
R
E is a spring secured at one and to the plate A the opposite free end of the spring
bearing against one side of the trigger or ontering a hole thorein so as to hold tho
trigger down in its normal position on one side of the slot in the "plate A in position
to act on one of the sears, so that when it is desirod to net on the other star the
trigger is pressed by the finger against the resisting pressure of the spring E to the
opposite side of the slot a in position to act on the other sear. When the pressure of
the finger is removed from the trigger it will return under the action of the spring E
to its former normal position. is a pillar or post arranged at the tail end of the
triggor to prevent the said trigger from being operated in mid position. This pillar
or post may bo provided with a roller as shown in Figures 1 and 2 so as to cause
the trigger when pros-od against the pillar to move to one side or the other as
required or it may be formed with a square edge as shown in Figure 3.
Having now particularly describe and ascertained the nature of my Inven
tion and in what manner the same is to bo porformed declare that what I
claim is --
1st. In double barrelled guns or small arus means for effecting the discharge of
both barrels one after the other or at intervals by one and the same trigger substan-
tially as hereinbefore described.
2nd. In double barrellod guns or small arms a single trigger capable of movement
in a lateral direction into position to not on the tiring mechanisms of each barrel one
after the other or at intervals substantially as horeinbofure described with reference to
the accompanying drawings.
3rd. In double barrelled guns or small aring the combination with a single trigger
capable of moving in a lateral direction of the spring or its equivalent and tho
guide pillar or post Fsubstantially as and for the purpose heroinboforo described with
roference to tho accompanying drawings.
4th. The general construction combination and arrangement of parts constituting
means for enabling the two barrels of a double barralled gun or small arm to bo
discharged one after the other or at intervals by the same trigger substantially as
horoinbefore described and illustrated by the accompanying drawings.
Dated this 1st day of Novatbas 1280