Year: 1891

page_text: Figure 13 is a longitudinal section on the line A B Figure 11.
Figure 14 is a section on the line CD of Figure 11, showing the parts in the
position they occupy after a shot has been fired.
Figure 15 is a similar view with the parts in the position they occupy after the
opening has commenced.
Figure 16 is a similar view showing the mechanism fully opened.
Figure 17 shows the position of the lock-mechanism when the gun having
missed fire, the hammer is being cocked again without opening the mechanism, and
Figure 18 shows the position of the mechanism, when being taken from the gun.
The hammer-lock mechanism consists of three principal parts, viz.:-the hammer
lock box b' with the lock mechanism contained in it, the wedge-shaped block b, into
which the lock-box is pushed, and the frame s surrounding the block and connected
with the trigger. The lock-mechanism is placed in the hammer-lock box and
consists of the double-armed cock c, the lower part of which is held pressed
outward by the main-spring d, placed between the hind-part of the cock and the
hind-arm of the double-armed angular full-cock hook e, which is pivoted and on its
upper side has a shoulder corresponding with a recess in the cock. Above this
full-cock hook and before the lower part of the cock the cocking-piece is placed
with a trunnion passing through one side of the box and with a central hole for
the shaft and a projecting collar, which in its circumference has a recess l, and a
planed-off surface (Figures 1 and 9). Both the hammer and the main-spring as
well as the full-cock hook rest in the box by bolts, so that they can easily be pushed
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page_text: into their places. When this is made the cocking-piece is put in and the box is
pushed into a cutting or notch in the block b and the shaft g is pushed from the
side into the central opening of the cocking-piece through a hole in the block.
Upon the end of the shaft outside the block a handle g' is attached, consisting of
a nave with two arms placed at an angle one to another (Figure 12) in such a
manner, that a shoulder u on the nave (Figure 3) is introduced through a recessy-
(Figure 18) in a ring-shaped flange, which encloses that opening in the block,
through which the shaft g passes.
The recess passes to a similar inner circular groove z, into which the shoulder u
passes from the recess y and in which it is thus retained after the turning of the
handle, thereby preventing the loosening of the handle g¹ from the shaft g.
On the one side of the block 6 is a groove 7 (Figures 14 to 18), for the end of
a lock-screw Q screwed in the usual manner through the side of the box when the
block has been pushed into the gun. The groove 9 determines by its length the
length of the movement of the block 6 during the firing. On two opposite sides of
the block there are also provided two projecting edges r', which have for their
object to effect the movement of the extractor.
"
The frame forms a kind of case open at both ends and is on the one side
provided with flanges fitting into corresponding recesses in the gun. On the one
side it possesses an opening with a groove h running into the same and intended to
receive a trunnion H on a lever, placed at one end of the shaft g (Figure 7 and
Figures 14 to 18). On the frame's there is also fixed a pistol-handle t, containing
the trigger one arm of which lies before a bolt 1, which is pressed outward by a
surrounding spring m (Figures 14, 15 and 17) and is movable in a groove in the
frames, ending before the collar-shaped part of the cocking-picce f.
In one edge of the frames there are recesses serving as bearings for the pivots r³
of a shaft passing across the inner side of the frame and supporting the extractor
(Figure 4 and Figures 14 to 18). The extractor consists of angular arms placed at
the end of the shaft on each side of the block when this is pushed in, the upper
ends of which arms move in the closing box. At the side of the trigger and the
bolt belonging to it the frame supports another bolt a "the lockhasp" moving in
a groove (Figure 16) and by a surrounding spring o being forced against the
outside of the box placed into the frame, so that at a special position of the block
it can catch into a corresponding recess p on the latter. The frames has also on
the inside a shoulder (Figures 14 to 18) placed in such a way, that at the
pushing in of the block a shoulder i on the axle y can pass over the same and thus
keep the block supported.
h
The extractor being placed in the frames and the frame being pushed into the
recesses of the gun, the block is pushed into the frames from below until the
trunnion H on the lever of the shaft g enters into the groove (Figure 18), when
the handle g is carried forward, whereby the trunnion H glides into the groove h
and raises the shaft g together with the block b resting thereon. During this
lifting up the shoulder i moves first past the shoulder on the inside of the frame,
but at the further forward motion of the handle it is placed above the said
shoulder (Figure 14) thus holding the block firmly in the frame. After this
the lock screw Q is introduced into the closing box, so that its end rests in the
groove q.
If the mechanism is to be taken off from the gun one need only loosen the
screw Qand move back the handle q', when the block can be taken out. By
removing the shaft g it is possible afterwards to separate the block and the hammer-
lock box, the different parts of which can then be disengaged.
The mechanism works in the following manner; When a shot has just been
fired off (Figure 14) and the gun is to be loaded again the mechanism is opened by
moving the handle g' backward, whereby the shaft g and the cocking-piece / placed
upon it are turned round, the latter cocking the hammer c and pressing together
the spring (Figure 15). At a further turning of the shaft the shoulder i leaves
its support on the corresponding shoulder i₁, the trunnion H entering into the

page_text: groove h and pressing the block 6 downward during movement of the said trunnion -
in the groove.
During this operation the hammer is still further cocked, its shoulder catching
finally into the corresponding recess of the full-cock hook e. At the continued
-moving back of the handle the block sinks still further, the edges ₁ on its sides
pushing first against the ends of the arms r, on the extractor (Figure 18) but
afterwards against parts of them being nearer the turning-axle and consequently
the extractor is at first forcibly and afterwards less forcibly but more quickly turned
round, thereby throwing out the empty cartridge case, the edge of the same being
clasped by the jaws of the upper arms of the extractor. On account of the speed
given to the extractor by the turning, it continues its backward movement somewhat
farther, than the edges r₁ force it to do, and hereafter it in consequence of its own
weight retains this backward position (Figure 16). By this means the shoulders r
on each extractor arm arrange themselves in corresponding recesses r, on the upper
end of the block, thus preventing the raising of the block. Upon the introduction
of a new cartridge its flange presses against the jaws r of the extractor, whereby
the said extractor is turned forward at the continued pushing in of the cartridge,
the shoulders being lifted out of the recesses r, thus permitting the block to be :
raised again by the forward movement of the handle. The block thus cannot be
lifted again before the cartridge has been pushed so far into its chamber, that it
cannot be jammed by the raised block. This whole arrangement has for the rest
already been employed in several guns and thus I of course do not claim it as my
invention. The upper end of the block is bevelled at b₂ (Figure 16) so that the
sloping surface thus formed at the lifting of the block meets the back part of the
cartridge and pushes it still further into its chamber.
If the gun is fired at a high elevation it may however occur, that the cartridge
glides back, whereby loss of time and some trouble are occasioned at the introduction
of the cartridge. This can be avoided by means of the cocking hasp n above
mentioned (Figure 16). When the extractor by the forcible introduction of the
cartridge-case into the chamber is pushed forward, it is turned and lifts the block b
so much that the cocking-hasp n under the influence of its spring is pressed into
the recess p in the block and prevents the sinking down of the block. On this
account the upper end of the block prevents the introduced cartridge from gliding
back farther than against the bevelled faces b, of the block, and thus nothing
prevents the introduction of the cartridge into its chamber and the closing of the
mechanism by moving forward the handle g'. The upper edge of the bolt n and of
the recess p as well as the strength of the spring o are proportioned in such a.
manner that the block 6 cannot be impeded in its movement, if the movement is
sufficiently vigorous but also that it cannot be set free by its own weight and thus
sink down again as soon as the bolt n has caught into the recess p.
After the cartridge has been completely introduced the handle 9 is pushed
forward still further until a projecting part v (Figures 3 11, and 12) which is held
in its place by a spring a strikes against a shoulder v, in the frame, when the block
is fully pushed in and at the same time supported, whereafter the shot can be fired
off. This is done in the usual way by pulling the trigger k the one arm of which
hereby pushes the bolt into the recess of the cocking piece, which in this
position of the handle lies just opposite the said bolt the trigger hereby becoming
free to turn its fore arm k can depress the locking-catch e; the hammer c hereby is
set free and under the influence of the main spring it is driven forward against the
percussion-cap and thus fires the gun.
In case of missing-fire the mechanism need not be opened it being possible to
cock the hammer anew by drawing out the locking part v, so that it can move
past the shoulder 11 on the frame and thereby allow of a further pushing forward
of the handle that is to say of a further turning of the shaft g, whereby the hammer
s again fully cocked by the cocking piece (Figure 17). If afterwards the
handle g is moved back again, until the part has taken its former position.

page_text: against the shoulder
trigger.
01 it may be tried again to fire off the shot by pulling the
From the above description it is evident that the back part of a gun arranged in
this manner need not be bored or otherwise worked out more than an ordinary
field-gun.
This arrangement has also the advantage over other similar mechanisms that the
trigger cannot be drawn before the forward movement of the handle has been finished
and the block is fully supported. In other mechanisms of a similar kind the trigger
can come in contact with the cocking arrangement before the forward movement of
the handle is finished, but after the block has taken its position. This causes
certainly no danger to life but contributes on the other hand to missing-fire, as the
hammer in this case does not get the full blow forward, but only follows the return
movement of the cocking mechanism which in most cases will prevent its hitting
the percussion cap with sufficient force to ignite the detonating composition.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed as communicated to me by my
foreign correspondents I declare that what I claim is :-
First. An improved hammer-lock mechanism for guns consisting partly of a
box (') intended to be introduced into a block or a wedge mechanism and con-
taining a hammer (c), a main-spring (d) acting thereupon a full cock hook (e) below
the hammer and a pivoted cocking-piece ƒ behind the hammer and partly of a
frame (s) intended to receive the block or the wedge mechanism.
Second. In the improved hammer-lock mechanisms of the kind above described
a cocking-piece f with a recess (4) ou its circumference in combination with a
frames on its one side provided with a bolt (1), which by the trigger can be pressed
into the recess of the cocking-piece only after the shaft g of this piece has been
turned so much that the mechanism has obtained a position suitable for the firing
off of the shot.
Third. In the improved hammer-lock mechanisms of the kind above described
the combination of a bolt n placed in the frame (s) and acted upon by a spring (o),
a recess (p) on the outer side of the block, into which recess the bolt (n) (the
cocking-hasp) can catch so that the block is held fast and cannot slide down by its
own weight at a high elevation.
Fourth. In the improved hammer-lock mechanisms of the kind above described
the combination of a shaft (9) for the cocking-piece, at its one end bearing a
handle () and resting in the sides of the block, a lever placed on the end of that
shaft which projects beyond the block, and provided with a trunnion (H) and a
frame (s) on its side having a recess with a groove () corresponding with the
trunnion for the purpose that the trunnion may enter in the groove at the intro-
duction of the block into the frame, thereby making it possible to raise and lower
the block by the turning of the shaft.
Fifth. In the improved hammer-lock mechanisms of the kind above described
the combination of a handle (g') with a movable part (v) and a frame (s) with a
shoulder () lying in the way of the movable part, past which shoulder the handle
can be moved at the pushing aside of the movable part, whereby it is possible
to further turn the cocking-piece (f) and its shaft, as also, in case of missing
fire, to cock once more the uncocked hammer without having to open the
mechanism.
Dated this 26th dow of Sentember 1801
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.