Improvements in Repeating Fire Arms.
Year: 1890

page_text: Date of Application, 10th Nov., 1890
Complete Specification Left, 29th July, 1891-Accepted, 31st Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Repeating Fire Arms.
I, CATELLO TRIBUZIO of No. 31, Corso Vinzaglio, Turin, Italy, Gun
Manufacturer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved construction of repeating fire arms whether
large or small.
I will proceed to describe the same with reference to the accompanying drawing
which shows the invention applied, by way of example, to a new form of pocket
pistol having a calibre of 8 millimetres.
When the pistol is taken hold of, it is in a "safety" position, that is to say,
none of its parts can move; in order to put the mechanism in action, the loop A.
must be moved, this being effected by drawing the loop forward with the fingers to
a distance of about 18 millimetres, as indicated by the dotted position Fig. 1, the
movement being stopped by a small stud which is situated on the opposite side and
which is acted upon by a spring situated in the hollow stem of the loop, as shewn
on the drawing.
This movement being performed, the mechanism is actuated by pressing upon
the loop with the finger, whereby the lever T is forced back. With this lever
engages the lever B of the sliding breech cylinder C; this being pushed forward,
meets in its course the first cartridge in the magazine and propels it into the
cartridge chamber of the pistol, into which the cylinder enters to the extent of
about 3 millimetres, so as to effectually close the breech against any escape of gas.
The firing pin D being also carried forward by the breech cylinder, is retained by
the catch (which also acts as ejector) until the breech cylinder has effected the
complete closure of the breech.
The lever B in moving forward bears against the lever R which in turning effects
the withdrawal downwards of the catch P, and thus frees the firing pin so that this,
urged forward by its helical spring, strikes the cap of the cartridge and fires the
charge, the lever B at the same time preventing all backward motion of the breech
cylinder by engaging its inclined head with the inclined notch at the end of the
cylinder to the extent of about 3 millimetres.
At the same time the lever R brings the catch P back to its original position by
the action upon it of the blade spring S.
On releasing the loop A with the finger, the spring X in forcing the stem of A
forward, again causes the lever B to become disengaged from the incline of the
breech cylinder, and to bring the latter back into its rear position.
The breech cylinder is provided at top with a spring extractor C', which con-
sequently, on the backward motion of the cylinder, seizes the base rim of the
cartridge case and draws this out of the chamber, whereupon the lower part of the
im comes in contact with the top of the catch P, and this in being acted upon by
ts spring S acts as an ejector for throwing out the case.
The above described movements are then repeated for firing a second time, and
hus a very rapid firing can be maintained as long as there are cartridges contained
n the magazine.
For replacing the loop A in the "safety" position it is only necessary to press
pon the lateral stud (shewn detached at Fig. 5) which prevents the stem of the
oop from penetrating backward so as to act upon the lever T.
The cartridges in the magazine are pushed upward by a helical spring of
ectangular form as shewn; two lateral springs, L (shewn in Fig. 1) and E (shewn
etached at Fig. 2) hold the cartridges against the action of the helical spring when
ot firing

page_text: The magazine may be charged either by introducing the cartridges one by one
or by charging them all together by any known special charging device.
If to the mechanism above described an ordinary pistol or gun butt end be
attached, and if the loop A be replaced by an ordinary trigger, a pistol or gun of
ordinary form is obtained; in either case the lever B is formed so as to prevent the
recoil of the breech cylinder when closed.
Figs. 3 and 4 shew detached details of the cover plates.
All the parts of the above described mechanism are so mounted as to be
separable without the use of tools.
Dated this 10th day of November 1890
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Repeating Fire Arms.
1, CATELLO TRIBUZIO, of No. 31 Corso Vinzaglio, Turin, Italy, 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 :-
My invention relates to an improved construction of repeating fire arms whether
large or small.
I will proceed to describe the same with reference to the accompanying drawings
which shew the invention applied, by way of example, to a new form of pocket
pistol having a calibre of 11 millimetres.
Fig. 1 is a vertical section of the pistol in safety condition with four cartridges
in its magazine,
Fig. 2 shews the pistol charged ready for firing.
Fig. 3 shews the parts in the act of firing,
Fig. 4 is a transverse section through the axisk of lever B,
Fig. 5 is a sectional plan of the loop or detent. A and its rod b,
Figs. 6 and 7 shew the plates for covering the lock mechanism and the
magazine and
Fig. 8 is a plan of one of the two springs E which hold the cartridges in the
magazine.
Fis the handle or stock containing the mechanism and the magazine H, and G is
the barrel having charge chamber a. The cartridges are pushed up by a spring I,
but two external spring checks E fixed at the sides level with the axis of the bore,
by means of projections e passing through suitable openings grip the uppermost
cartridge a little above its centre and prevent the cartridges from issuing. C is the
obturator which is fitted to slide in the upper part of the stock in line with the
barrel, and which has on it a spring extractor J and within it a spring striker D.
A loop A, which operates as a detent or trigger is fixed to a rod which can slide
longitudinally in a tube c, which can slide in guided and is urged forwards by a
spring X. A stud is fitted in a transverse hole of the rod and is urged by a
spring so that when A is pulled forwards the stud projects in front of the end of c
and prevents from being pushed back unless the stud is pressed in. A lever B
is pivotted on a pin k; its lower end T engages in a slott of the tube c and its
upper forked end
g engages in notches in the sides of the obturator H, as shewn
in Fig. 3.
C
The front of each notch h is vertical in its upper part and is sloped away below.
Normally the pistol is in the safety position shewn in Fig. 1.
When it is to be used, the handle F is grasped and by means of a finger the
loop A is advanced to the dotted position in which position it is held by the spring
stud coming in front of c as shewn in Fig. 5.
On now pushing back the loop A the tube e is pushed back compressing the

page_text: spring and moving the lever B so that its upper end pushes forward the
obturator C.
This, bearing against the uppermost cartridge, pushes it into the charge chamber a,
the extractor J at the same time hooking the flange of the cartridge. As the
obturator is advancing, an inclined projection f at the underside of the striker D
meeting the top of the bolt P is held back, the striker spring being thus compressed.
As the cartridge is completing its advance into the chamber a the lever B meeting
the vertical arm of a bell crank lever R pushes it forwards in opposition to a
spring S and its horizontal arm draws down the bolt P, which, just as the cartridge
is fairly seated in the chamber, releases the projection, so that the striker D
advances and fires the charge. At this moment the heads g of the lever Bare just
seated under the inclines of the notches h and form abutments for the obturator,
transmitting the force of recoil to the pivot k, without throwing any strain on the
loop A or its connections. After discharge, the pressure on A being released,
the spring X pushes it forwards, moving back the lever B and the obturator, the
extractor on which rapidly brings back the shell of the fired cartridge until it
meets the bolt P (now raised again) by which it is forcibly ejected.
The spring I now raises the cartridges still in the magazine and the uppermost
of these is held by the side springs E ready to be advanced by the obturator in its
turn for a succeeding fire. When the firing is done, the spring stud 7 can be pressed
in and the loop A can then be pushed back to the safety position of the parts
shown in Fig. in which position the weapon can be handled or transported
without danger.
It may be readily understood that the improvements described can be applied to
various kinds of fire arms, rifles, fowling pieces, or other magazine guns without
making any substantial alteration of the lock mechanism described. The form of
the loop or trigger A may obviously be varied, and the arrangement of the sliding
rod 6 and stud for pushing this into the safety position might be dispensed with.
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. Repeating and firing mechanism for a fire arm consisting of the handle or
stock F containing the lock and the magazine with its raising spring I and spring
cheeks E, the sliding obturator C fitted with extractor J and containing spring
striker D, the loop or trigger A and its rod with spring X, the lever B the
spring bell crank R and bolt stop P, arranged and operating substantially as
lescribed.
In combination with the loop or trigger A, its rod and the tube c, and the
spring stud 1, substantially as and for the purpose set forth.
Dated this 29th day of July 1891.
ABEL & IMRAY,
Agents for the Applicant.