Improvements in Breech Loading Small Arms.
Year: 1888

page_text: Date of Application, 29th May, 1888
Complete Specification Left, 19th Dec., 1888
Complete Specification Accepted, 5th Feb., 1889
PROVISIONAL SPECIFICATION.
Improvements in Breech Loading Small Arms.
I, CHRISTOPHER GEORGE BONEHILL of Belmont Row, Birmingham, in the County
of Warwick, Gun Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to hammer intercepting bolts or means, for preventing the
accidental discharge of the said hammers, on an arm being fired, and which said
invention, is an improvement or improvements upon Letters Patent, granted to me,
and bearing date the 31st day of May 1884 and numbered 8471.
It often happens in double guns, that one barrel is accidentally fired, by the jarr
off, occasioned by the firing of the other barrel; that is, the concussion created in the
armi, by the firing of one barrel, removes the sear nose of the other barrel, from its
hammer, and so allows the said hammer, to accidentally fall.
The object of my invention, is to overcome this difficulty, by automatically pre-
senting in front of each hammer or tumbler, an intercepting bolt, which can only
be removed, by the pulling of the trigger.
Disposed, and working transversely within a solid block, or extension, at the rear
of the body part, under the tang strap, are two intercepting bolts, with their acting
or intercepting ends, presented in two opposite directions, and when in intercepting
positions, they protrude or extend outwardly from the two opposite sides of the
block, and in front of the hammers or tumblers; and which said block, is of a
breadth equal to the distance between the inside faces of the hammers or tumblers;
so that when the bolts protrude, the hammers are intercepted; and when drawn in
by the action of the triggers, they can then fall.
The rears of each bolt are pressed upon, by flat springs, while their undersides
have inclined planes, and gaps; and upon the inclines of the former, vertically sliding
pushers, act, for taking the said bolts out of position, on the pulling of the triggers.
The forward lower sides of the pushers, are also inclined, against which, extended
fore parts of the trigger blades, press, on the triggers being pulled, and by which
fore action, the bolts are withdrawn from their intercepting positions.

page_text: The top sides of the pushers, are rounded off, upon one side, and act upon the
inclines of the bolt.
The trigger blades, are jointed below, and a little in advance of the extensions; so
that on the pulling of the triggers, the said extensions slightly rise and press upwards
the pushers, which in their turn, operate the bolts.
The trigger safety consists of a single sliding limb, with its rear made bell
cranked, whose upper end takes between two depending lugs or their equivalents,
carried by, and upon the underside of the safety slide, moving upon the tang
strap.
The fore part of the limb, is made into a rod, which passes, and is guided through
the trigger bracket, and with its extreme fore part coming against the locking bolt,
while the middle of the horizontal part of the limb, has opposite snugs, against
which upwardly extended rear parts of the trigger blades, come, when the gun is
at safe.
The two positions of the safety, are determined by the free end of a spring, working
over a shaped underside.
The front protruding ends, of the intercepting bolts, are slightly chamfered off,
while the backs thereof, are straight; so that on the opening of the barrels, the
hammers rise, and automatically push back the intercepting bolts, and when in their
cocked positions, they are held by the sears as usual.
The opening of the barrels as aforesaid, presses back the safety limb, and through
it, the safety slide, thus bringing the snugs of the said limb, on the tops of the rear
extensions of the trigger blades, thereby preventing the said triggers from being
pulled, until removed.
The moving rearwardly of the safety slide, allows the triggers to be raised, which
causes their extended fore parts to lift the pushers, which in their turn act upon
the inclines of the intercepting bolts, and draw the said bolts inwards, or from in
front of the hammers, thereby allowing the said hammers to be fired.
.
On pressure being relieved from the triggers, they resume their normal positions,
which allows the intercepting bolts, to be pressed outwards, by their springs.
It will thus be seen, that the intercepting bolts can only be operated by the triggers;
so that should a sear not fired, get taken from its bont, by a jar off, its hammer or
tumbler, must necessarily be intercepted.
Dated this Twenty-eighth day of May 1888.

page_text: I, CHRISTOPHER GEORGE BONEHILL of Belmont Row, Birmingham in the County of
Warwick, 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 principally to hammer intercepting bolts, or means for
preventing the accidental falling of the hammers of double guns, on the arm being
fired.
Figure 1 of the accompanying drawings represents partly in longitudinal vertical
section, and partly in elevation, a breech loading double gun, provided with hammer
intercepting bolts, and also trigger safety means, whereby the hammers are prevented
from being accidentally discharged, both by the jar off on the discharge of the arm,
and by the accidental pulling of the trigger. The said view represents the front of
the head, of one of the hammers or tumblers, coming under one of the intercepting
bolts. Thus, it will be seen that each hammer or tumbler has an intercepting bolt
of its own, which automatically places itself in front of its hammer, and is only removed
therefrom, by the pulling of that trigger, by means of which it is operated.
Figure 2 represents in elevation a like view as figure 1.
Figure 3 represents partly in end elevation, and partly in section, an end view of
the said arm, taken on the dotted lines A B figure 1.
Figure 4 represents a front and end view of one of the intercepting bolts,, and
figure 4 is the other intercepting bolt. Figure 5 is a front and end view of one of
the pushers, and figure 5ª the same, of the other pusher.
Figure 6 represents upon an enlarged scale, a diagramatic view of the intercepting
bolts, and pushers, and figure 7 shows a plan of the same, but with the hammers
behind the said bolts.
a are the barrels, b is the body of the arm, c the break off, and d is a rear extension
of the said body part; and working transversely through the said rear extension,
which comes iminediately under the tang strap of the arm, are two intercepting
bolts e, f, whose acting or extended ends e, f, come in front of the respective heads g
of the hammers g, when in their normal positions. These intercepting bolts are
operated by the upper ends of vertical pushers h, i, coming and acting against, the
inclines e, f, disposed on the undersides of the said intercepting bolts.
The lower undersides of the said pushers are inclined, against which the upwardly

page_text: extended fore parts j³, 13, of the trigger plates j, k, act, on the said triggers being
pulled, so as to turn upwardly the said fore parts on their joint pin l.
Thus, the pulling of the triggers, forces the fore parts of the trigger
blades,, upon the inclines,, of the pushers 1, i, thereby raising the said
pushers, which respectively act upon the inclines e, f, of the intercepting bolts e, f,
thus causing the bolts to slide inwardly, and in opposite directions, and so take their
protruding ends ³, f³, of the respective bolts, from in front of the heads, of the
hammers g.
The intercepting bolts are automatically pressed home or into their intercepting
position, by springs m, n, whose free ends act upon the rears of the bolts.
It will be observed that the intercepting ends of the bolts are slightly rounded off
on their front sides, so that the hammers on being cocked, automatically force the
bolts back, when then snap in front of the bolts, as represented in figures 2 and 3.
The trigger safety consists of a single sliding limb o, with a V shaped under-
part o³, and fore part o³, which latter slides through a guide p, and comes against the
rear end of the locking bolt q; so that on the lever r, being turned aside for the
breaking of the barrels, the safety limb o is pressed back by the rear action of the
bolt g as aforesaid.
o is a snug on the fore part o³, adapted to come above the rear and upward exten-
sions of the trigger blades, so as to prevent the said triggers from rising.
o is a vertical limb, with its upper end engaging with the safety slides, while the
said sliding limb is kept in its two positions, by the free end of a springt, playing
over the inclined part o³. The limb slides upon the pin u, carried by a bracket,
upwardly directed from the understrap of the arm.
To fire the arm, press forward the slides, when the limbo moves forwardly and
with a snug o out of the range of motion of the rear extension of the trigger
blades.
The pulling of either one or other of the triggers, as for example, j, raises its fore
part, which acts upon the pusher h, whose upper side impinges upon the incline.e
of the intercepting bolt e, thereby sliding inwards the said bolt, and taking its inter-
cepting and protruding ende, from in front of the haminer or tumbler of the barrel
intended to be fired, thus allowing the-said-hammer or tumbler to fall, and discharge
the arm.
Should the concussion created in the arm, remove the sear v, from the bent of the
other hammer or tumbler, then the said hammer or tumbler is intercepted by the bolt
end of the bolt f, coming in front of it.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
First. Preventing the bammers of double guns being accidentally discharged, by
transversely disposed intercepting bolts, which are normally kept in position by springs,
and are operated or withdrawn from in front of the said hammers only by the triggers
as set forth.
Secondly. A concealed hammer gun, the combination with the hammers thereof,
of intercepting cross bolts e, f, respectively working side by side, at the back of the
breech body part, and nominally checking the accidental discharge of the said
hammers, by their outwardly extending ends e², f, coming in front of the hammers;
and which bolts are adapted to be released, by the pulling of the triggers, through the
intervention of lifters, substantially as set forth.
Thirdly. A concealed hammer gun, the combination with the lock mechanisın, of
intercepting bolts e, f, with underside inclines e³, f³, and gaps, nominally being held
in intercepting positions before the hammers, by springs m, n as set forth.
Fourthly. A concealed hammer gun, the combination with the rear body part d,
and hammers g, g, of intercepting bolts f, ƒ³, pushers h, 1³, i, 2, and triggers 1, ², k, k³,
as set forth.

page_text: Fifthly. In a concealed hammer gun, the combination with the inclines h*; ³, of
pushors, i, of trigger blade fore extensions 7", k², as set forth.
Sixthly. A concealed hammer gun, the combination with trigger safety mechanism,
of a single limb o, with extended fore part o³, snug ot, and arm o, adapted to slide upon
a pin u, and through a guide p, so as to take the snug o*, above and away from, the
rear extended upper part of the trigger blados, as set forth.