Improvements in or connected with Repeating Fire Arms.
Year: 1892

page_text: Date of Application, 9th Apr., 1892
Complete Specification Left, 7th Jan., 1893—Accepted, 9th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Repeating Fire Arms.
A communication by CARL PROCHL, of No. 27, Alserstrasse, Vienna VIII, in the
Empire of Austria.
I, GEORGE CECIL DYMOND M. Inst. M.E. of the Agency for Foreign Patent
Solicitors, 6 Lord Street, Liverpool and 6, Bank Street, Manchester, both in
the County of Lancaster and 323 High Holborn in the County of Middlesex,
Patent Agent, do hereby declare the nature of this invention to be as follows:-
This invention consists of an angular breech piece together with a magazine in
the stock.
This breech piece offers the advantage of a very safe closing as the recoil of
the gases of the powder is equally distributed over the walls of the case, and
during the opening of the fire arm the cartridge holder is loosened in the
chamber.
The breech piece, which is fastened by turning to the right in the case, consists
of a cylindrical chamber piece provided with a guide ledge and a hand knob.
This breech piece is bored to receive the striking mechanism, and into which the
closing cap is screwed by means of a left hand screw thread. In order to prevent
any automatic turning, or loosening, of the closing cap in the chamber piece, a
check screw passing through the chamber piece engages the cylindrical continuation
of the closing cap. The case has, at both sides of the guide groove, strengthening
pieces against which the check screw strikes in its backward motion, and thus limits
the movement. The check screw is fixed by means of a steel spring which is
countersunk and firmly screwed into the guide ledge, in order to prevent it becoming
loose. The closing stud is provided with two nipple shaped projections which slope
towards the front, which in combination with the guide ledge form the secure
fastening, and grooves for allowing them to pass are bored in the case on both sides
of the magazine opening. The projections of the head piece rub in the cross
groove exactly behind the cartridge chamber whilst the guide ledge rubs behind
the right wall of the case by which means a treble closing is brought about. The
closing stud if it be at all injured in any way may be replaced by a new one, by
which arrangement the durability of the fire arm is considerably increased. The
cartridge drawer is fitted with its ring shaped part over the narrow part of the
chamber piece, rests in a recess in the stud, and is always held in a straight direc-
tion by means of the guide projection, so that it cannot take part in the evolution
of the breech piece. If the breech piece be turned to the left by means of the
hand knob, the aforesaid two nipple shaped projections as well as the guide ledge
first leave their securing position, and then by further turning to the left the whole
breech piece together with the cartridge drawer is pressed back in consequence of
the curved shape of the front end of the loading opening, and thereby the cartridge
is loosened in the chamber and then the breech piece is quite easily drawn back.
The back part of the chamber piece is bored out cylindrically to receive the
striking mechanism, slotted and provided with a tension triangle, which when
turned to the left, cocks the striker whilst a catch piece springs into a notch for its
reception. A further catch is passed over the hinder part of the striking bolt and
is held firm by a bolt nut screwed on the striker bolt. Both the catch and the bolt
nut have small projections by which they are guided in the tongue groove.
breech catch is arranged movable on a screw in a cross groove of the bolt nut and
fastens the cocked striker as well as the breech piece, by entering, immediately the
handle is pressed to the right, a groove like recess in the hinder edge of the
chamber piece. The ejector pin is attached to a spring screwed firmly under
The

page_text: the case, and, for the purpose of allowing it to project, the breech stud is
correspondingly recessed.
THE MAGAZINE.
This consists of the magazine box, which is connected with the trigger guard
and fixed under the case by means of two screws, the bottom of which magazine
box is perforated to allow the empty cartridge card to drop out. The bayonet
shaped, curved magazine spring, provided with a feeder and a feeder spring, is
fastened to a little rod, situated under the barrel, by means of a screw and pin, and
lifts the cartridges in the inserted card through a slot in the magazine into the
case. If the cartridge card be empty, it drops by its own weight, through the
perforation in the bottom, out of the magazine box. The full card is retained in
the magazine by means of a tooth of the card holder, which is capable of revolving
on the screw. The card holder consists of two parts, namely, the straight part
revolving on a screw, and a part which is adjustable in slots upwards and downwards
and is provided with a tooth and head-piece. When this part is pushed downwards,
the card, with its charge, stands below the level of the breech plug and the
magazine is cut off; if it be, however, pushed upwards, the card with the upper-
most cartridge stands at the level of the breech block, the magazine is, therefore,
connected and operates. In both positions, the card is firmly retained by the tooth
of the spring pusher. The cards are constructed so that they may be inserted
from both sides into the magazine.
Dated this 7th day of Anril 1892.
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with Repeating Fire Arms.
A communication by CARL PROCHL, of No. 27, Alserstrasse, Vienna VIII, in the
Empire of Austria, Manufacturer.
1, GEORGE CECIL DYMOND, M. Inst. M.E., of the Agency for Foreign
Patent Solicitors 6, Lord Street, Liverpool and 6 Bank Street, Manchester,
both in the County of Lancaster and 323 High Holborn in the County of
Middlesex, Patent Agent, 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 consists of an angular breech piece together with a magazine in
the stock.
This breech piece offers the advantage of a very safe closing, as the recoil of the
gases of the powder is equally distributed over the walls of the case, and, during
the opening of the fire arm, the cartridge holder is loosened in the chamber.
On the accompanying drawing:-
Figure 1 shows a side view of the breech piece with hand knob and guide ledge
together with the striking mechanism cocked:
Figure 2, a plan view of same :
Figure 3, the explosion chamber block:
Figure 4, a side view of the case :
Figure 5, a plan of same:
Figure 6, the closing cap:
Figure 7, the check screw:
Figure 8, a side and plan view of cartridge drawer:
Figure 9, a plan view of bolting nut with the catch:
Figure 10, a side view of same with catch fastened:
Figure 11, a side view of same unfastened:

page_text: Figure 12, a side view of the magazine:
Figure 13, a plan and side views of the magazine spring:
Figures 14 & 15 are side elevations and Fig. 16 is a section of a gun constructed
according to this invention showing all the parts assembled.
The breech piece, which is fastened by turning it to the right in the case,
consists of a cylindrical chamber piece D provided with a guide ledge a and a hand
knob b. This chamber piece is bored to receive the striking mechanism, and into
which the closing cap, Figure 6, is screwed by means of a left hand screw thread.
In order to prevent any automatic turning, or loosening, of the closing cap in the
chamber piece, a check screw, Figure 7, passing through the chamber piece,
engages the cylindrical continuation of the closing cap. The case, Figures 4 and 5,
bas, at both sides of the guide groove, strengthening pieces cc, against which
the check screw strikes in its backward motion, and thus limits the movement.
The check screw C, Figure 7, is fixed by means of a steel spring d, which is
countersunk and firmly screwed into the guide ledge a in order to prevent it
becoming loose. The closing stud or cap is provided with two nipple shaped pro-
jections, Figure 6, which slope towards the front, which, in combination with
the guide ledge, form the secure fastening, and grooves e e', Figure 5, for allowing
them to pass are bored in the case on both sides of the magazine opening. The
projections of the cap rub in cross grooves exactly behind the cartridge chamber.
whilst the guide ledge bears with friction against the right wall of the case, by
which means a treble closing is brought about. The closing stud, if it be at all
injured in any way, may be replaced by a new one, by which arrangement the
durability of the fire arm is considerably increased. The cartridge drawer, Figure 8,
is fitted with its ring-shaped part over the narrow part of the chamber piece D,
rests in a recess in the stud, and is always held in a straight direction by means of
the guide projection f, so that it cannot take part in the revolution of the breech
piece. If the breech piece be turned to the left by means of the hand knob, the
aforesaid two nipple shaped projections as well as the guide ledge a first leave
their securing position, and then, by further turning to the left, the whole breech
piece, together with the cartridge drawer, is pressed back in consequence of the
curved shape of the front end of the loading opening 9, Figures 4 and 5, and
thereby the cartridge is loosened in the chamber and then the breech piece is
quite easily drawn back. The rear part of the chamber piece D is bored out
cylindrically to receive the striking mechanism, slotted and provided with a tension
triangle i which, when turned to the left, cocks the striker, whilst a catch piece k
springs into a notch for its reception. A further catch, Figure 3, is passed over
the rear part of the striking bolt and is held firm by a bolt nut screwed on the
striker bolt, Figures 9 and 11. Both the catch and the bolt nut have small pro-
jections m n by which they are guided in the tongue groove. The breech catch o
is arranged movably on a screw in a cross groove q, Figure 9, of the bolt nut and
fastens the cocked striker as well as the breech piece by entering, immediately the
handle is pressed to the right, a groove like recess r in the rear edge of the chamber
piece. The ejector pin y, Figure 5, is attached to a spring screwed firmly under
the case, and, for the purpose of allowing it to project, the breech stud is
correspondingly recessed at s, Figure 6.
1
THE MAGAZINE.
This consists of the magazine box E, which is connected with the trigger guard
and fixed under the case by means of two screws, the bottom of which magazine
box is perforated to allow the empty cartridge card to drop out. The bayonet
shaped, curved magazine spring, Figure 13, provided with a feeder F and a feeder
spring H and hinged at G is fastened to a little rod, situated under the barrel, by

page_text: box. The full card is retained in the magazine by means of a tooth of the card
holder u, Figure 12, which is capable of revolving on the screw. The card holder
consists of two parts, namely, the straight part revolving on a screw t, and a part w
which is upwardly and downwardly adjustable in slots and is provided with a
tooth and stud . When this part is pushed downwards, the card, with its
charge, stands below the level of the breech plug and the magazine is cut off; if
it be, however, pushed upwards, the card with the uppermost cartridge stands at
the level of the breech plug, the magazine is, therefore, connected and operates.
In both positions, the card is firmly retained by the tooth of the spring pusher .
The cards are constructed so that they may be inserted from both sides into the
magazine.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated
to me by my foreign correspondent, I declare that what I claim is :-
1. The closing stud, Figure 6, provided with two nipple shaped projections
tapering to the front, so that the stud, as soon as its projections get bent or other-
wise injured, may be replaced by a new one, by which means the durability of the
fire arm is increased, substantially as described and shown.
2. The annular cartridge drawer, Figure 8, passed over the narrow end of the
chamber piece, and provided with guide projections f.
3. The striker and breech block catch o secured in a cross groove of the bolt
nut, Figures 9 and 11, and revolving on the screw p, substantially as described and
shown.
4. The ejector pin y attached beneath the case penetrating the bottom of the
same and having a downward spring.
5. The arrangement of the magazine, by which the card may be conveyed into
the same with the uppermost or undermost cartridge.
Dated this 6th day of January 1893.
WM. P. THOMPSON & Co.,
Agents for the Applicant.