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Патент USA US3050902

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Aug. 28, 1962
H. VOGLER ETAL
3,050,892
AUTOMATIC FIREARM UTILIZING A SPRING FOR RELOADING
3 Sheets-Sheet 1
Filed March 18, 1959
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Aug. 28, 1962
H. VOGLER ETAL
3,050,892
AUTOMATIC FIREARM UTILIZING A SPRING FOR RELOADING
3 Sheets-Sheet 2
Filed March 18, 1959
__.
‘LL
United‘ States Patent 0 ” "ice
I
snsassz
' Patented
Aug. 28, 1-962
2
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holder 2a for the spring 2 and the rotor 1 are mounted on
a shaft 9 for rotation therewith. In order to assure rota
3,li50,892
AUTOMATIC FIREARM UTKLHZING A SPRING
'
tion with the shaft, the shaft, 9 is preferably provided with
FUR RELOADEQG
a non-circular pro?le, for instance a polygonal such as a
Heinrich Vogier, Eggstrasse 32, Oberengstringen, near
Zurich, Switzerland, and Heinz Krausser, Orleans
strasse 31, Munich, Germany
Filed Mar. 18, 1959, Ser. No. 890,148
Claims priority, application Germany Mar. 21, 1958
5 Claims. (Cl. 42-5)
hexagon cross-section, and the said holder for the spring 2
andthe rotor ll de?ne on their interiors matching cross
sections with which they are mounted on the shaft slid
ably relative to the shaft but tied thereto for rotation
therewith.
_
'
In addition to the foregoing rotating parts, there is also
The invention relates to ?rearms, and relates more par 10 a group of parts including the casing which are non-rotat
ticularly to automatic ?rearms, for use in ?ring'a series
able; these parts are a front plate 7 disposed in the for
of shots in rapid succession with cartridges of small recoil
ward portion of the casing, a sliding member 4 that is
force.
In ?rearms for short distance ?ring, for instance for
short distance target practice, there is usually used as
disposed between the front plate ‘7 and the spring housing
3- itself. These non-rotatable parts, namely the front
plate 7, the sliding member 4, ‘and the spring housing 3
ammunition a type cartridge that has but an inferior ?ring
power which, though su?icient for accuracy in striking
the target, has ‘only a small recoil force. The recoil force
in such ?rearms is, in fact, too small to utilize it for auto
are mounted on mounting means such as two rails 6 (FIG.
2). The housing 3 is furthermore secured to the casing
by means of a threaded positioning pin (FIG. 1).
The sliding member 4. includes a sleeve 16 and is mov
matic reloading for ?ring a series of shots in rapid suc
cession. These ?rearms are therefore customarily re~
able between a forward ?ring position (shown in FIG. 1)
and a rearward cocking position, sliding between these
loaded by hand.
positions on the rails e. Resilient means such as a helical
‘It is among the principal objects of the invention to
provide for automatically reloading ?rearms for use with
cartridges of small recoil force. It is another object of
the invention to provide for such ?rearms that will oper
ate fully automatically and will detonate in rapid succes
sion one cartridge after the other until the magazine is
empty without, however, utilizing any recoil force of
preceding shots.
Generally speaking, this is accomplished by providing
the ?rearm with a spring that is self-activated for reload
ing and inactivated at all other times.
'
It is accordingly a further object of the invention to
provide for such ?rearms that are simple in construction,
exceedingly simple to use, and that utilize the stored
spring energy'economically. It is still another object of
the invention to provide for such ?rearms that dispense
spring 5 urges the sliding member 4 forwardly into the
25
?ring position.
’
~
In advance of the front plate 7 there is mounted on the
shaft 9 for rotation therewith though slidable there
against, ‘a ‘drum type cartridge magazine 8 that carries
cartridges 24. The drum magazine 3 is also shaped inter
nally like the holder 2a for the spring 2 and the rotor l,
for rotation with the shaft 9, so that when the shaft 9 ro
tates there will also rotate the holder for the spring 2, the
rotor l, and the drum magazine 3.
The shaft 9 may be pulled out rearwardly, and by pull
ing the shaft 9 for at least a certain distance, it will free
the drum magazine 8 permitting exchange of magazines
through an open window formed in the casing. At the
rear end, a handle or knob 16 is mounted on the shaft 9
outside of the casing, for manipulating the shaft 9. The
with the use of gases of any type for the reloading, and
handle 10 is used, for instance, to pull out the shaft 9 and
that require but little space resulting in ?rearms of small 40 to push it back into position, as Well as to turn the shaft
size. It is a still further object of the invention to provide
by hand for winding the spring motor 2.
for such ?rearms in which most of the parts essentially
The rotor 1 carries at its forward end a series of sprock
are co-axially arranged, and which will operate reliably
ets or detents 11, ‘and an engaging element such as a pin
as the parts are ‘so constructed and positioned as to rule
13 engages one of said detents whenever the sliding mem
out substantially any malfunctioning or non-functioning.
With the above and other objects of the invention in
view, the invention consists in the novel construction,
‘arrangement and‘ combination of various devices, ele
her 4 is retracted from the forward ?ring position. The‘
In carrying the invention into effect in one of the em
bodiments which has been selected for illustration in the
the rotation to ‘a halt.
The rotor 1 is provided on its exterior with one or more
cam surfaces 14, for instance a series of spiral cam sur
pin‘ 13 is axially movably disposed in the plate 7 and is
biased by a spring 12 to project rearwardly into engage
ment with a detent 11.. A portion of the pin 13 projects
ments and parts, as set forth in the claims hereof, certain
into the path of the front face 17 of the sliding member 4
embodiments of the same being illustrated in the accom
to be engaged and be pushed forwardly thereby during the
panying drawings and described in the speci?cation.
forward movement of the sliding member 4 to the ?ring
For a fuller understanding of the nature and objects
position, so that in the ?ring position of the sliding mem
of the invention reference should be had to the following
her 4 the pin 13 will be disengaged from all the detents 11.
detailed description, taken in connection with the accom
55 The pin 13 and the detents 11 form a releasable locking
panying drawings, in which:
_
means for the rotor 1.
‘FIG. 1 is a fragmentary large scale sectional view of
When the pin 13 engages a detent, the rotor 1 cannot
the ?ring and loading mechanism in accordance with an
rotate. When ‘the pin 13 is out-of-engagement with any
embodiment of the invention;
of the ‘detents 11, however, the spring 2 will, by means of
FIG. 2 is an underside view thereof; and
FIG. 3 is an elevational view, partly in section, of the 60 transmission of the shaft 9', cause rotation of the rotor 1
until the pin 13 engages one of the detents 11, bringing
forward portion of the ?rearm embodying a modi?cation.
accompanying drawings and for description in this speci?
cation, and referring now particularly to FIGS. land 2, 65 faces 14 as shown in FIGS. 1 and 2. The sliding member
the ?rearm comprises a stock 35 (shown in broken lines
in the drawing) on which there is mounted a hollow cas
ing 27 (see Fig. 3). Inside the casing 27 there is disposed
4 has a corresponding and matching internal cam surface
or spiral cam surfaces 15, and the cam surfaces 15 of the
> sliding member 4 engage the cam surfaces 14 of the rotor 1.
a rotor 1 which is capable ofrotation, but held immov
On the underside of the sliding member 4 there is pro
2, which acts as a spring, is mounted in a stationary hous
cocking position by a sear 21 which forms part of a tiltable
latch 22 of a latching means for the sliding member 4.
able against shifting axially of the casing. A spiral spring 70 vided a projection 20» that is engaged releasably in the
ing 3. The spring 2 surrounds a holder 2a. The said
3,050,892
3
4
A trigger means is provided, including a trigger 23 and
linkage associated therewith, operable to release the sear
21 so that the sear 21 will be pushed out of the way by
a thread 29. A nut 3t} engages the thread 29 and se
cures a ?ange 31 of the barrel 25 between the nut 30
and the forward end 28 of the tubular body 26.
the projection 20 under the force of the spring 5, following
tubular body 26 is connected to the forward'portion of
which the spring 5 which extends between the housing 3
and the sliding member 4 will propel the sliding member 4
the casing 27 .
into the ?ring position.
A ?ring pin 18 is axially movably disposed in the
plate 7. It is biased by a spring 19 to project rearwardly
into the path of the sliding member 4. The forward end
of the ?ring pin 18 is in register with the detonating area
of the cartridge 24, so that impact actuation ‘between the
?ring pin 18 and the cartridge 24- will cause detonation
of the cartridge 24 and propulsion of the bullet through
the barrel that is mounted in alignment with the active
cartridge bore of the drum magazine 8. in accordance
with the embodiment of FIG. 1, the “active” cartridge
bore is that disposed momentarily topmost.
‘
The operation of the above described embodiment is as
follows:
The operator will ?rst withdraw the shaft 9 for a dis
tance, by applying pulling force to the knob 10, and will
insert a fresh magazine 8 containing a series of cartridges
24. The operator will ‘then push forwardly the shaft 9 to
engage the magazine ‘8. The sliding member 4- will be held
in its cocking position by the projection 21. Operation of
the trigger 23 will allow the projection 25} to push out of
the way the sear 21, and the spring 5 will propel the sliding
member 4 forwardly into the ?ring position. The front
The
'
Above the body 26 there may be provided a hollow
piece 32, the upper edge of which may be in alignment
' with the upper edge of the casing 27 and which may
carry a sight 33.
We wish it to be understood that we do not desire to
be limited to the exact details of construction shown and
described, for obvious modi?cations will occur to a per
son skilled in the art.
Having thus described the invention, what We claim as
new and desire to be secured by Letters Patent, is as
follows:
1. In an automatic ?rearm, in combination, a stock, a
loading and ?ring mechanism supported by said stock, a
barrel disposed ‘forwardly of said stock, said mechanism
comprising a casing, a plate closing the forward end of
said casing and de?ning with the rear end of said barrel
a space open on top, a shaft journalled for rotation in
said casing, a drum coaxially mounted on‘ said shaft and
rotatable therewith and having cartridge receiving bores
face 17 of the sliding member 4 during this movement will '
parallel of the axis of the shaft and drum, said drum
being disposed in said space, said shaft being shiftable
axially oppositely between a normal position wherein
its forward end projects into said space and engages said
drum and, respectively, a retracted position wherein the
forward shaft end is retracted from the space and re
make impact with the ?ring bolt 18 and will actuate it to
move forwardly to detonate the cartridge 24. The front
face 17 of the sliding member 4 will furthermore make
said casing coaxially on said shaft and being rotatable
therewith and restrained from movement axially of said
impact with the pin 13 dislodging it from its engagement
leases the drum to be lifted out, a rotor mounted inside
shaft and having a cam surface, a spring connected to
said shaft and operable to rotate said shaft, a sliding
member disposed coaxially of the shaft axis and being
axially slidable in said casing between a forward ?ring
of the shaft 9, until the pin 13 after rotation of the rotor 1
position and a rearward cocking position and being re
through a predetermined angle will engage the next suc~
strained from rotating and having a cam follower sur
ceeding detent 11.
‘
During this rotation, the interaction of the cam sur 40 face engaging the cam surface of said rotor, said rotor
with a detent 11 of the rotor ll. Thereupon, the rotor 1
will rotate under the impulse of the spring 2 by means
being operable thereby to move said sliding member into
the,
cocking position when said rotor is rotated by the
sliding member 4 from the ?ring position to the cocking
shaft, resilient means in said casing urging said sliding
position. By this rearward movement, the sliding mem
member into the ?ring position, releasable latching means
ber 4 will release the pin 13 for engagement with the next
45 operable to latch said sliding member vreleasably in the
succeeding detent 11 of the rotor 1, andqwill release the
cooking position, trigger means operable to release said
?ring pin 18 to project again rearwardly. In the cocking
latching means, ?ring means adapted to detonate a car
position, the sear 21 will again engage the projection 20‘,
tridge in a drum bore when said sliding member during
making the ?rearm ready for the next shot unless the
forward
propulsion reaches the ?ring position, and re
operator keeps the trigger 23 pulled, in which event auto
faces Hand 15 will cause a rearward movement of the.
matic ?ring continues until the drum 2; is exhausted of
cartridges. When the operator keeps the trigger 23 pulled,
the cams 14 and 15 will retract the sliding member 4 to
the cocking position at each ?ring of a cartridge, but the
projection 20 will depress the sear 21 and move forward
again following each retraction and automatically with
out pause, as the trigger 23 when pulled pushes out of the
way of the tiltable latch 22 the linkage which normally
restrains the tilting of the latch 22.
During the rotation of the rotor 1 throughout said pre 60
determined angle as delimited by the spacing of the
leasable locking means inactive when said sliding mem
ber is in the ?ring position and active in all other posi
tions of said sliding member to limit the rotation of said
rotor to a predetermined angle to turn thereby the drum
to the next cartridge, said ?ring means including a ?ring
pin, said rotor including detents, said releasable locking
means including a locking element operable to engage a
detent of the rotor, said ?ring pin and element being
movable axially of said shaft and normally disposed in
the path of said sliding member adjacent the ?ring posi
tion thereof for impact actuation thereby when said
sliding member is propelled from the cocking position
into the ?ring position, whereby in the ?ring position of
same predetermined angle the drum 8. The predeter
said sliding member said locking means will be rendered
mined angle is so arranged that not only will the sliding
inactive and said ?ring means will be activated.
member 4 be retracted to the cocking position, but also 65 2. In an automatic ?rearm, as claimed in claim 1, said
the next cartridge will be aligned with the barrel and
shaft having a non-circular external cross section, said '
with the ?ring pin 18.
rotor having a matching non-circular internal cross sec
In the embodiment of FIGS. 1 and 2, the ?ring pin
tion, a holder for said spring having a matching internal
detents 11 on the rotor 1, there will be turned for the
18, the active bore of the drum 8, and the barrel are
cross section and being mounted on said shaft and oper
aligned in a position disposed above the shaft 9. In 70 able to transmit the power of said spring to said shaft
contrast thereto, the arrangement of FIG. 3 provides
for rotation thereof, said shaft having a projection ex
instead for alignment of these parts below the shaft 9'.
tending rearwardly of said casing, and a handle mounted
In that modi?cation, there is provided a barrel 25 held
on said projection for manual rotation of said shaft to
interchangeably within a tubular body 26.
wind said spring.
The tubular body 26 has a forward end 28 that carries
, 3. In an automatic ?rearm, as claimed in claim 1, saidv
3,050,892
5
6
?ring pin and locking element being mounted in said
plate parallel of said shaft and slidable in opposite
References Cited in the ?le of this patent
directions axially of‘said shaft.
UNITED STATES PATENTS _
‘
4. In an automatic ?rearm, as claimed in claim 1, to
gether with, a housing surrounding said spring, and
mounting means including two rails connected to said
plate and to said housing immobilizing said plate and
housing, and said sliding member engaging said rails to
be guided thereby during its sliding movement between
said ?ring and cocking positions.
,
_
5. In an automatic ?rearm, as claimed in claim 1, said
.latching means comprising a projection formed on said
sliding member a sear releasably engaging said projection
in the cocking position of said sliding member, said trig
ger means being operable to allow said projection to push
said sear out of the path of said projection of said sliding
member for releasing said sliding member.
10
239,238
597,588
1,284,580l
1,487,722
1,534,085‘
2,057,169‘
2,101,148
2,170,221
2,786,394
2,872,850
Davenport ____________ .__ Feb. 10, 1959
3 19.820
‘Italy ________________ __ July 21, 1934
Franks ______________ __ Mar. 22,
Nygren _______________ __ Jan. 18,
Brzostwski et al ________ __ Nov. 12,
Coenders ____________ __ Mar. 25,
Schwaerzer ___________ _.. Apr. 21,
Swenson _____________ __ Oct. 13,
Manville ______________ __ Dec. 7,
1881
1898
1918
1924
1925
1936
1937
Stanley ____ -‘. _______ __ Aug. 22, 1939
Wassel ______________ __ Mar. 26, 1957
FOREIGN PATENTS‘
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