Year: 1886

page_text: I BENJAMIN JOSEPH BARNARD MILLS of the firm of Harris and Mills of
23 Southampton Buildings in the County of Middlesex, Patent Agent do hereby
declare the nature of this invention, a communication to me from abroad by
George D. Potter, of the City of Chicago, in the County of Cook, and State of
Illinois, in the United States of America, Engineer, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object I have in view is the improvement of breech-loading fire arms with
the view of obtaining increased safety in use, ease and certainty in operation, and
durability in wear; and the novelty therein consists in the means employed for
locking the barrels to the standing breech; for relieving the strain upon the hinge
pin at the instant of discharge; for relieving the shock of the barrels as they fall,
and for ejecting the empty shells, and in the safety catches, all as more fully
hereinafter described and claimed.
.
For a better comprehension of my improvements reference should be had to the
accompanying drawings, in which Figure 1 is a vertical section, nearly central, of a
portion of a gun with my improvements shown partly in detail. Figures 2 are
a detail side view of the trigger guard and locking lever and a cross section of the
guard.
Figure 3 is a detail of the cam and its spring.
Figure 4 represents a longitudinal and nearly central vertical section of a
portion of a gun with the barrels closed and locked. Figure 5 is a similar section
partly in elevation, with the barrels open.
Figures are detail views of the plug, which forms the rear support to the
extension rib fastening. Figures 7 are details of the crescent-shaped cain, and its
spring band.
Figures 8 are a sectional elevation of a top-lever attachment in position, and
detail plan and side views of the same.
Figure 9 is a modification ef the attachment shown in Figure 8:-Figure 10 is a
detail sectional elevation of a barrel-cushion-spring, and shell ejector:-Figure 11°

page_text: is a detail of the hook to the extension rib:-Figure 12 is a nearly central vertical
section of the stock of a gun.
Figure 13 represents a vertical section of the top lever locking mechanism, and
its attachments with the barrels closed, and Figure 14 is a similar view of the
same with the barrels open. A represents the gun barrels, having an extension
rib A¹ with a dependent cylindrical hook a of the form shown in the drawings,
and separated on the forward sido from the body of the rib by a curved passage
way b; said barrels having also a dependent lug A' with a bolt slot c on its
rear end.
For the purpose of locking the gun barrels in position for firing, I employ a
slot B, in the standing breech, into which slot, and fitting closely to its sides, the
extension rib A¹ enters and engages therein with a crescent shaped cam C tapering
slightly on its inside towards the outer end so as to take up wear, and adapted to
enter and fit closely within the passage way b.
This cam has movement lengthwise in annular grooves d in the side walls of the
Blot B.
When the hook a enters the slot B, in closing down the barrels, the lug of the.
barrel at the same time entering its recess, presses down a spring and withdraws a
pin which holds the lug bolt retracted, then by means of the pressure of a .V shaped
spring D with a hook at its end which engages with the inner end of the cam, the
cam is forced into the passage way b partially encircling the hook and holding it
with a firm lock.
In connection with this cam, a lifting rod, not shown in the drawings may be
used, pivotted to the inner end of the cam, and extending down through a recess
in the stock, and through the bottom strap and terminating in a proper finger.
piece, by the raising of which rod the inner end of the cam could be raised against
the pressure, of the spring D, and the cam withdrawn from its passage way b, and
in this simple way the cam may engage and disengage with the extension rib.
The lifting rod may extend down through the lug bolt and the bottom strap
connecting in the manner shown in the drawings with the cam and crank G, when
the operation upon the cam and bolt would both be accomplished by simply lifting
the rod by pressure on the end of the crank.
Or a side lever may be attached to one end of the crank shaft, said lever being
on the side of the stock convenient to the thumb. I prefer, however, the lifter E
acting positively in both directions and pivotted at its upper end to the inner end
of the cam C by a pin h which works in a slot i in the upper end of the lifter, as
shown in Figure 3.
The slot i is for the purpose of allowing the lifter to raise the end of the spring
and withdraw its hook before acting upon the cam which, until this is done, is
firmly locked.
The lower branch of the spring D terminates in a hook which rests upon the
upper end of the lifter and against the end of a recess ; on the upper side of the
cam and serves to keep the spring in position, whether depressed or expanded, as
well as the lifter, and also to hold the cam in its locked position.
The lifter passes through a slot k in the lug bolt F, which slot is of such size
that the lifter will press against the forward end of it, when the bolt is pressed
into its slot c and against the rear end of it, when the bolt is fully withdrawn from
its slot with a positive motion in each direction.
For the operation of this lifter, the lower end of the same is pivotted to the
arm of the crank shaft G, which in turn is rotated by the lever H attached to or
made a part of the crank shaft, which lever when pushed forward, withdraws the
lug-bolt F from its slot c and at the same time raises the end of the spring D and
withdraws the cam C from attachment with the extension rib A¹ and the barrels
are unlocked from the standing breech.
When the lever H is drawn back the lifter pushes the lug-bolt into its slot, and
the hook drops into its recess, and the cam passes into its passage way b and the
barrels are locked down in position for firing.

page_text: In this operation of the lifter positively the spring D may be dispensed with,
but I prefer it as giving greater ease in working, and additional security in the
position of locking. Any tendency of the recoil of the gun to withdraw the cam
and lug-bolt is counteracted by the position of the lifter E held by the crank and
spring D against a dead centre to the line of their travel.
For greater convenience, I prefer to have the lever H constitute the forward
portion of the guard, separated from the guard proper, at a suitable point m, by a
rabbet-joint as shown in Figures 2 and to put in the outside of said lever a groove n
for the reception of a flat spring I, preferably tapering toward its free end, which
spring is secured to the main portion of the guard and extends in such groove over
the lever H having its upper end armed with a hook o¹ which takes into a recess
in such lever, when the lower end of the lever is brought in contact with the guard
proper, thereby clasping the lever and straightening the joint, and when the lever
is pushed forward, catches at its free end, as shown in figure 2, and covering the
gup between the lever and guard, thereby protecting the triggers.
}
I have shown for additional security in the manipulation of the locking
mechanism, a vertical pin J mounted on the free end of a flat spring K. secured to
the bottom of the lug recess e¹ for the purpose of holding the mechanism open and
preventing unnecessary wear.
This pin takes into a recess q in the lug-bolt when that bolt is withdrawn from
its slot c and there holds it until affected by the action of the lug when it reaches
the bottom of the recess e¹ and depresses the flat spring K and thus withdraws the
pin J and releases the bolt.
:
The pin J holds the bolt and the entire locking mechanism is held open until
the barrels are closed down, when the locking mechanism begins to operate.
The spring shown on the lug-bolt is intended only as a buffer ordinarily.
This lug-bolt is shown in the drawings as having its rear end spring r taking
against an abutment, but it may instead take against a safety catch lever such as
is described in another portion of this specification, whereby the act of raising or
lowering the lifter will by moving the lug-bolt back and forth, operate the safety.
catch to lock and unlock the triggers.
t
I do not wish to confine myself strictly to the constructions enumerated above
as preferred by me, as I am aware that many changes may be made therein
without departing from the cardinal idea of this improvement, namely a curved
bolt reinforcing a straight bolt both locking the barrels of a gun in every direction,
and both the curved bolt and the straight bolt locked simultaneously both in the
locking and unlocking of the gun, all by the same movement of a single lever.
The cam C is slightly tapered toward its point on that part which encircles the
hook a of the extension rib, A', so as to take up wear, and by thus clasping such
hook, firmly locks the extension rib to the standing breech and its preferred con-
struction is illustrated in detail in Figures 7 where it is shown as of the form of
one half of a short tube with a central transverse rectangular slot a¹ the purpose
of which is to enable it to straddle a central film on the hook of the extension rib,
shown in detail in Figure 11 which film is for the purpose of giving strength to
such hook.
+
This cam may be moved as shown in Figure 7 by means of a spring D¹ which is
a flexible metal band at one end, where it is secured to the outer face of the cam
in a suitable recess a³, the end of the band being cut away to correspond with the
slot a¹ in the cam.
The spring D' thus secured to the cam, and fitting in its recess, upon the same,
extends around and to the rear of the same to a point where it is enlarged into a
stiff rod D, as shown at Figures 4, 5, 13 and 14.
The spring band portion slides in a groove 1 in the bottom of the plug L shown
in detail in Figures 6, for the length of its throw but is supported back of that
point by a rib 2 upon the upper side of the band, which rib moves in a channel
in the plug
:

page_text: The object of this rib is to prevent the band from kinking when it enters the
channel which also serves for, the stiff rod D2, which channel extends from the heel
of the cam to the rear lower edge of the plug.
The cam is moved forward in its grooves by means of the spring and rod D¹ D'
by a V-shaped spring 4, the forward limb of which rests against the forward edge
of a mortise in the rod D³, and being hook shaped at its end will not drop out of
its bearing, while. the rear end terminates in a shank 5, which is hung in the
stock.
This mechanism for moving the cam forward is shown in Figures 4 and 5 as
operated by a thumb piece M directly, which thumb piece may be made a part of
the rod D2 and by pushing it forward, the cam is moved forward and upward in
its grooves, and locks the hook of the extension rib securely independently of
the spring.
I prefer however, the means shown in Figures 8 as more convenient in use, where
a top lever moveable laterally is employed instead of the thumb-piece whose
movement is longitudinal. This top lever N has at its forward end a square
mortise 6 which fits over the square upper end of a post O which projects up
through the tang of the standing breech, the end of the lever being fastened to
such post by a set screw.
This post has a shoulder 7 fitting into and against the underside of the tang of
the standing breech, which holds it and the lever down to place.
At the bottom of the post a crank 8 is secured, with a bearing pin 9, at its outer
end on the inner side, or the post, pin and crank may be made of one piece.
This bearing pin drops through a slot in an arm 10 which is pivotted at one
end to a bearing plate 11 through which, or through a channel in which the
rod P passes.
This arm 10 has also another slot 12 in which a pin 13 projecting upward from
said rod passes.
The lever N being moved to the right turning upon the post moves the crank 8
backward and this in turn forces the arm 10 backward, and this in turn the rod P
in a line directly under the standing post O and with a multiplied throw.
Figure 6 shows in detail the construction of the plug L, before mentioned the
rear view showing at its bottom the grooves in which the flexible band and its rib
travel, the chamber 14 in which the dog F1 is hung, and the manner of securing the
plug in place by means of screws.
The first view of the same shows the position, and the entire edge of the dog,
and the grooves for the flexible band and its rib, the plan view showing the groove
in which the cam travels and the chamber for the dog, and the side elevation which
is a central vertical longitudinal section, shows the general construction of the
plug, a portion of the chamber for the dog, annular groove for the cam, and the
shoulder which limits its movements backward.
.
The dog F pivotted in the chamber before mentioned, has a hook at its lower
front end, which catches in a notch on the heel of the cam, when the same is drawn
back out of engagement with the hook of the extension rib, and holds the cam
and its attachments in position while the barrels are open, and when the barrels
are closed, the hook of the extension rib strikes the front face of the dog, forces it
back out of its notch and releases the cam.
This dog is pressed forward in its work by a spring K¹ secured to the rear upper
part of the plug.
It will be understood that when the dog F¹ shown in Figures 45, 13 and 14 is
forced back by the extension rib when the barrels are closed down in position, the
V-shaped spring then acts directly to move the cam into a locking position, as
regards, the extension rib.
:
In the arrangement illustrated in Figures 9, the rod is jointed a short distance
back of the lever-post of Figure 8 or bent at that point, so that its extreme rear
ènd will strike against a spring 15, secured to the safety catch lever, so that when

page_text: the rod is thrown back the safety-catch lever is also thrown back and the triggers
are locked, but by overcoming the tension of the spring when the barrels are open
and the rod is thrown back, the safety catch can be pushed forward and the
triggers pulled for the purpose of letting down the hammers to concealed
hammer guns.
The hammer being released will fall as the barrels are closed down.
The extension rib A¹ formed on the barrels and shown in detail in Figure 11,
terminates in a hook a which has channels b at its sides to receive the forked ends
of the cam, and has a central film by means of which greater strength is given to
such hook.
The extractor R, and its rod R', are those in general use, except that the rod is
extended beyond the hinge-pin of the barrels, and it is operated as follows:-
A spring 16 terminates in a yoke 17 at its front end, and is placed in the fore-
stock, with the rear end 18 of the spring protruding.
When the fore stock is in place this end of the spring fits tightly in a socket in
the forward end of the breech body, forward of the hinge pin.
This spring 16 passing under a bearing pin 19, will relieve the jar upon the
binge joint when the barrels are dropped as the spring will take up the shock.
When the barrels are closed the extractor R bearing against the standing breech
will force back the lever S and compress the yoke of the spring 16 until the lower
end of the lever is engaged by the dog T, which will hold it in that position: when
the barrels are again dropped after firing, the yoke is further compressed by the
shortening of the distance between the end bearings of the spring.
The dog T carries on its rear under side a push button 30, attached to the dog
lever by a rivet or pin on which it may be turned around and has on its front side
a thin hook lip 36 adapted to engage over the bottom strap of this fore-stock
holding the dog out of engagement when it is not desirable to eject the shells
suddenly and forcibly.
The gun having been discharged and the barrels opened, the lever and spring.
are in the position shown in heavy lines in Figure 5.
Now by pressing the push button the lever is released and the empty shells are
thrown out of the barrel, the ejector taking the position shown in dotted lines in
Figure 5 and the lever and spring before named are in the position shown in
Figure 10.
In case that it will not be desirable at any time to throw the shells suddenly out
of the gun, the push button can be forced in, bringing its lip-hook above the bottom
plate of the fore stock.
Then by means of a screw driver or knife-blade the bottom may be turned a
little, so that the hook will pass over the fore stock plate, and hold the dog out of
engagement with the lever and allow the extractor to push the shells out gradually
as the barrels are tilted by the pressure of the spring upon its lever and its rod.
A modification of this device adapted for use with hammerless guns is shown in
Figure 14 in which the bearing pin before described is omitted, and the rear end of
the ejector spring is formed like a doll's head or knuckle bearing. which fits into
and vibrates in a socket in the end of the fore part of the breech body.
In Figure 12, U is the stock of a gun, V the ordinary triggers and W the
guard.
In the interior of the stock is a curved lever 21 vertically arranged and pivotted
to the stock at a point 22 preferably below the vertical centre of the same.
This lever as shown has a shoulder 27 projecting forward so as to provide a
convenient base or abutment for a spring bereinafter more fully described, when it
is desired to have the safety-catch automatic in its action, but any other support or
abutment for a spring will answer the purpose.
The extremity 23 of the foot is adapted to fit over the trigger, and hold the
same from any movement of any character, produced by any cause whatever.
To operate this lever, so as to cause it to lock the triggers as described, the upper
end of the lever projects through a slot 24 in the back plate and is pivotted to a

page_text: slide composed of two sections and vand preferably near the centre of the front
section.
This slide is composed of two metallic bars, constituting the sections u and v
which are held together by a flat spring 25, slightly arched upward, and secured at
each end to one of the sections, so as to hold said sections together, and act as a
spring hinge, or these sections may be positively hinged to each other.
The spring also causes the opposite ends of the sections u v to adjust themselves
to a bearing on the back plate at every point of their travel and the spring forming
a hinge at the extreme top of the sections admits of a perfectly closed joint when in
the safe position.
This slide has a longitudinal movement in a groove 26' in the back plate of the
stock, which groove is recessed so as to have a shoulder 27 near the front end of
the same.
If preferred, the slide may have only its lower central portion work in the
groove and have its upper portion overhanging at the sides, for better protection
against dirt, dust and water.
When the slide is drawn backward, the front end of the section is forced down
by the spring 25 behind this shoulder and engages against it, and by this move-
ment of the slide, the lower end of the lever is swung over the triggers and over
the sears, locking both securely.
To remove this catch from its engagement it is necessary to raise up the front
section and press it forward, when the lower end and shoe of the lever will be
removed from the triggers and sears, and the gun may be discharged.
In order to make this action of the catch automatic, a spring 28, preferably
spiral, is attached to the reduced end 29 of the bolt F.
This bolt which may be 'the lug-bolt of the gun, being thrown back by the act of
withdrawing the bolt for the purpose of opening the barrels in any of the well
known ways for throwing back the lug-bolt, throws back the upper end of the
lever, and the slide, and throws forward the lower end of the lever and its shoe,
and locks the triggers as before described.
This spring instead of being secured to the bolt, may be secured to the lever 21
at the shoulder 27%, or directly to the lever at any convenient point.
When the barrels are open the safety catch is moved forward by exerting a
pressure upon it sufficient to overcome the spring.
This is necessary in a hammerless gun by reason of the necessity of pulling the
triggers while the gun is open when it is desired to let down the hammers.
By pulling the triggers when the gun is open the hammers, are not caught by the
Bears and therefore go down gradually as the gun is closed.
The effect of the arrangement of parts is to lock automatically the safety-catch,
whenever the barrels are opened, and leave the safety catch and triggers locked until
released by moving the safety-catch.
In all cases when the barrels are closed down and locked in position, the safety-
catch can only be released by a combined upward and forward movement by hand
of the slide u v.
By the arrangement of the slide upon the back plate, it is within convenient
reach of the hand which grasps the stock, while the pressure of the hand cannot
give any movement to the slide, neither can any sudden shock to the gun, as by
striking an object or by falling release the catch and triggers "on account of the
shoulder against which the forward section of the slide is held by the spring.
As the slide at all times covers the slot 24, no dust, dirt or water can get into
the interior of the stock.
Another construction of this safety catch is shown in Figure 13, wherein a
longitudinal bolt 31 jointed to or operated on by foot of the safety-catch lever 21,
and passing through bearings at the bottom of the stock, engages over the end of
a safety-hook-lever at 32 resting upon the trigger as hereinafter described. The
flexible cam band before described is attached to an upright lever 33 working
longitudinally in the centre of the stock, just forward of the grip, which lever is

page_text: pivotted to a raised lug 34 on the bottom strap, passing up through a recess in
the stock.
At a point directly back of the band slide, a curved arm 35 slightly narrower
than the band projects forward from the lever describing an arc of a circle whose
centre is the centre on which the lever swings.
This arm is for the purpose of supporting the flexible band at points of the throw
on a level with the slide bearing..
At the rear side of the lever directly under the back strap, a similar arm 36
projects backwards.
This arm is for the purpose of closing the slot in the stock when the lever is
thrown forward and for the further purpose of working the safety catch as
hereinafter explained.
In the upper end of this lever a socket 37 is provided, as shown in dotted lines
for the reception of a bolt 38 or blade constituting the bottom end of the thumb
piece.
A thumb piece 39 standing above the centre of the stock, has at its lower
extremity a reduced bolt or blade 38 which passes through a narrow slot in the
back strap, and enters the socket 37 in the upper end of the lever 33 as above
described.
This bolt has also a lip 40 thrown out. from its front side leaving a narrow
slit 41 open at the bottom between the blade and its lip.
When the thumb piece is driven into the socket of the lever, this lip 40 engages
over the upturned end D³ of the flexible band D2 binding the latter to the lever 33
and by its friction the thumb piece 39 to the lever.
The rear arm 36 of the lever 33 has attached to its under side near the lever,
a flat spring 41 slightly curved at its rear extremity which when the lever is
thrown back for the purpose of opening the barrels, strikes the safety catch lever 21
and locks the triggers as heretofore described.
Figure 14 is an illustration of the same locking action with the barrels open.
It is desirable to relieve the strain longitudinally upon the hinge pin at the
instant of discharge.
To effect this without weakening the fore part of the body under the standing
breech by the use of a rear lug, as is commonly done, I employ instead of such lug
serrated projections A* on the under side of the barrels having corresponding
meshing serrations B* in the front part of the breech body whereby I obtain
large bearing surface without weakening the breech body at the point of greatest
strain.
It is to be understood that these serrations are preferably confined to the
respective edges leaving the joint between the barrels and the breech body in the
central portions straight and smooth.
While I have described constructions of safety catches which are preferred by
me, I do not wish to be confined to these precise constructions, as I am aware that
many changes may be made therein, without departing from my cardinal idea,
which embraces essentially self-locking means on the outside of the stock for
operating a trigger-locking lever on the inside of the stock.
The principal advantages of these catches may be summarized as consisting
in simplicity of parts, ensuring efliciency and durability in use, and in the
impossibility of unlocking by any accident or inadvertence, or in any way, when
the gun is ready for firing, except by the two movements described, of the band,
downward and forward.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
1. A crescent-shaped cam combined with the extension rib of the barrels of a
gún substantially as and for the purposes described.

page_text: : 2. À crescent shaped cam operated in one direction by a spring, combined with
the extension rib, substantially as and for the purposes described.
3. A crescent shaped cam, traversing annular grooves, combined with the
extension rib, substantially as and for the purposes described.
4. A crescent shaped cam, combined with the extension rib, and with a lifter
pivotted to the cam, substantially as and for the purposes described.
5. A crescent shaped cam, combined with the extension rib, a lifter pivotted to
the cam, and a slotted lug-bolt operated by the lifter, which passes through the
slot in said bolt, substantially as and for the purpose described.
6. A crescent shaped cam, combined with the extension rib, a lifter pivotted to
a cam, a slotted lug-bolt operated by the lifter, and a lever for operating the lifter,
substantially as and for the purposes described.
7. The lever H composed of the front section of the guard, substantially as and
for the purposes described.
8. The lever H combined with a spring, substantially as and for the purposes
described.
9. The lever H, combined with a crank shaft, and with the lifter, substantially
as described and shown.
"
10. A spring carrying a pin and operated by the lug of the barrels for locking
the lug bolt, substantially as described.
11. A lug bolt provided, with a slot for the passage of the lifter, and with a slot
for the reception of a locking pin, combined with a spring exerting pressure
forward to such, bolt, substantially as described.
12. The combination of the crank arm, the lifter pivotted thereto, the lug-bolt
with the slot therein, the crescent shaped cam and its pressure spring, arranged to
present the crank arm and the lifter in the same longitudinal line, when the cam
spring is compressed substantially as described.
13. The combination of the spring in the lug recess, and its locking pin, with the
slot in the lug bolt, substantially as described whereby all the locking devices are
positively locked for operation, while the breech is opened, and released when the
breech is closed.
14. An extension rib having a hook provided with side locking recesses, and a
central strengthening film, substantially as described.
15. The combination of an extension rib of the character above described, with
a forked crescent shaped cam, substantially as described.
16. The combination of an extension rib a crescent shaped cam, both of the
character described and a metal band secured to the face of the cam, and connected
with operating mechanisın substantially as described.
17. The combination of an extension rib, a crescent shaped cam, both of the
character described, and a metal band secured to the face of the cam, which band
terminates in a stiff rod, and is connected with a thumb piece, substantially as
described.
18. The combination of an extension rib, a crescent shaped cam, a metal band
terminating in a stiff rod and connected with a thumb-piece, all of the character
described, of a spring attached to said rod substantially as described.
19: A removeable plug, containing recesses or chambers for the crescent shaped
cam, and for the metal band and rod described, and for a dog to lock the cam, all
substantially as described.
20. In combination with a plug of the character described, a flexible band
attached to the cam, and provided with a vertical rib, and terminating in a stiff
rod, all substantially as and for the purpose described.
21. In combination with a plug, a locking dog pivotted to the same, and the
crescent shaped cam, substantially as described.
22. In combination, a thumb piece, a stiff rod, a crescent shaped' cam and
connections between said rod and cam, whereby the latter may be operated by
movement of the thumb piece, substantially as described.

page_text: 23. In combination with the fore stock of a gun, a V-shaped spring arranged
to arrest the shock of dropping the barrels, substantially as described.
24. In combination, the top lever N provided with its mortise the post O with
its shoulder, the crank 8 with its bearing pin, and the rod P substantially as
described.
25. The combination of the jointed rod P with the triggers and with the
spring 15 secured to the safety catch lever, substantially as and for the purposes
described.
26. In combination, an ejector and ejector rod and fore stock bearing in it
a V-shaped spring, and a lever engaging with said rod substantially as described.
27. In combination with an ejector an ejector rod and lever, a push button,
attached to a catch or dog and free to turn on its axis and having a projecting lip,
substantially as described.
28. A self locking slide, on the exterior of the stock, for operating a trigger
locking lever, in the interior of the stock, substantially as described.
29. The hinged slide u v substantially as and for the purposes described.
30. The hinged slide uv with its spring in combination with a groove in the
back plate, having a shoulder, substantially as and for the purposes described.
31. The hinged slide u vin combination with the lever 21, substantially as and
for the purposes described.
32. The lever 21, combined with the bolt F, adapted to be moved in one.
direction by the opening of the breech of the gun, substantially as and for the
purposes described.
33. In combination, the slides u v with their spring the groove 26 with its
shoulder 27, and the lever 21, all arranged substantially as and for the purposes
described.
34. The longitudinal bolt 31 operated by the foot of the safety catch 21 and
engaging with the end of a safety hook lever resting upon the triggers substan-
tially as and for the purpose described.
35. The upright lever 33 and its connections operating in manner and for the
purposes substantially as herein shown and described.
36. The combination of the safety catch lever 21 longitudinal bolt 31 and upright
lever 33 and its connections all operating in manner and for the purposes substan-
tially as herein shown and described.
37. In a breech loading fire arm the employment of serrated projections A* on
the underside of the barrels and corresponding recesses B* in the front part of the
breech body substantially as herein shown and described and for the purpose
stated.