Post 6 38604 Reifgraber Auto
Post 6 38604 Reifgraber Auto
Post 6 38604 Reifgraber Auto
AUTOMATIC FIREARM.
urmcgnon FILED smmzs, 1907.
' 929,491.
WITNESSES
@a/L?
I
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v
.
_U7
INVENTOH
J. J. REIPGRABER. -
AUTOMATIC FIREARM.
APPLICATION FILED SEPT. 26, 1907.
929,49 1 .
lo
Isl-T d2
WITNESSES -
/ ENTOH
A TTOHNE VS
J. J. REIE'GRABER. 7
AUTOMATIC FIREARM.
929,491.
APPLIUATIOR
FILE
ATTORNEYS
J. J. REIFGRABBR.
AUTOMATIC FIREARM.
929,491.
12.413
WITNESSES
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J ?lwEgEr??E?
USEPH
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gym
A TTOHNE YS
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AUTOMATIC FIREARM.
No. 929,491.
of
vented certain new and useful Improvements vided end of the casing on aboutlinc 12--12
~ lowing is a speci?cation.
in
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its rearmost position. Fig. 5 is a horizontal of the magazine with'the bottom plate ad
longitudinal section of the arm' withits parts justed to position it assumes in. inserting
in the position they'assume after'the ?ring and removing said plate. Fig. 24 is a detail
operation and immediately after a shell has section of the lower portion of the magazine
tudinal section of the arm with the parts .in the'lateral projections on the bottom plate, '
, the position shownin Fig. 4, except that the and Fig. 25 is a detail view of the bottom
.breech block has moved forward. Fig. 7 is a plate showing the lateral projections. '
l side View partly in section of the gun with
The present arm is similar in many re
the breech block in its rea rmost position and spects to that. shown in my prior patent No.
the/safety lever in safety position. Fig. 8 834,753 and in the following description I
shall, in} part at least, identify the parts in
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100
Fig. 9' illustrates. the rear portion of the tion of its rearward movement with the
breech block I, the latter having a rearward.
105
applied or removed. Fig. 10 is an elevation able safety lever all as more fully described
of the inner end of the vback plug. Fig. 11 ' hereinafter. It will also, be noticed that
. is a- detail side elevation of the rear portion when the hammer is down the safety lever 110
of the ?re arm from the opposite side from cannot move to its released position, thus
Fig. 1 showingthe. handle portion'of thev indicating by sight and touch that the ham.
1f.
mer is down and when the hammer is down Q and journaled at one end atsQ2 in one of
the side lock T cannot be moved to its dotted, the jaws of the plug-holding portion of the
line position.
15
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75
ates forwardly against the ?ange A11 and a pivotal support for the safety lever P when
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45
tion. The rear end of the casing is provided preventing the rocking of the lever to such
with interru ted threads, the ortion' A" and position that the pin A can escape through
the groove 2 interrupting t e threads A the contracted opening Q. It will be un
which threads receive the interru ted threads derstood from the foregoing that the pin Q
on the back plug B when the atter is in may be given .a quarter turn from the posi
sorted and turned to place. ' '
tion shown in Fig. 2, to permit the removal
The back plug B is provided at its rear and application of the, safety lever and may
end with the handle portion B by which it be then given a further quarter turn in order
may be turned, to set its threads into_and out to release the jaws of the casing sufficiently
of engagement with those of the caslng, and to free the back plug and permit the same
it is provided in its front end with a recess to be turned in order to remove it, as may
be desired.
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100
105
110
115
120
breech block may be moved'rearwardly inde as more fully described hereinafter. This
endent of the sliding barrel after the latter rear extension Dzis slotted at D12 to ,receive
The rear end of the body portion A2 of the latch C rocks. This latch C ?ts partially
' the casing is split or divided at its lower end in the recess D12, is notched in its underside
forming the'opposite jaws which are con at C to ?t'on the pin D1, is provided. near
65 nected by the cross pin Q having a handle its front end with the forwardly facing 130
.8"
929,491 _
a
shoulder C2 to- engage upon the rear end of shown in liig. 4, the breech block'eontinuing
10
' from the position shown in Fig. 2 to the _ _ward movement until the said barrel lock is
positionv shown in Fig. 4- when the parts are released -by the action of the bree'chibloek,
.in the position shown in said Fig. 4, and when the latter reaches its foremost'posi
15 thus release the breech bl'ockso the '_latter_ tion. This barrel lock has an important 80
may continue its rearward movement be function in that it'prevents the forward r,
sliding barrel.
20
It will .be vnoticed that the .orother action until the breech block is re
latch by the form of pivot shown and dc" adjusted into proper relation with the
scribed is conveniently detachable from the sliding barrel. It. will be understood that
sliding barrel when the latter is removed if the sliding barrel were permit-ted to move
from the casing and may be removed and, forward'before the breech block moves for- replaced by simply dropping it in'and lift ward, into connection with the sliding bar
ing it out of-position. In permitting the rel, as shown in Fig. 2, the latch C would
operation of the latch it will be-notieed' I 'likel y be forced down upon the breech block 1 so
provide the casing-A in the under si'ii'faee and bind the same and it .is to avoid any
of its upper wall near itsv rear end with the such action that I provide the barrel, lock
groove or recess A into which the latch J. This lock is shown asa lever pivoted
C adjustsv when the barrel is in its real-most between'its ends at J to the sliding barrel,
position and the breech block is freed from arranged at its'front end J? to engage in
said barrel by such adjustment of the latch rear of the rearwardly facing shoulder J3
. and asthe'barrel moves forward by the'tor on the casing when the sliding barrel is in
ward movement of the breech block pres its rearmost position and the breech block
'ently. described it operates to adjust the is also in its rearmost position and thelsaid
latch C from the position shown in Fig. 'lererhas its rear end. J4 arranged to be en 100
4- to that shown 1n Fig. 2 in which the said gaged and actuated by the portion Jj" at the
.latch will hold the breech block in connec front end of the breech bloclc'when the
tion with the sliding barrel until the latter latter reaches its foremost. position, as
hasagain- readjusted to its rearmost posi; shown-in Fig. 6 so thebreeeh block when
tion in the operation of the invention.
adjusted to the position shown in Fig. 6 . 105
In I the operation before 2described, it will will ' free the front end .of the barrel lock J '
30
wa rdly, and the breech block with it-by the .the barrel may nioi'e forward under the
action of the gas in the cylinder A, the gas in?uence of the breech block, the latter be
scribed.
110
cured upon the barrel and seated at its rear in the position shown 1n 141g. 50f the draw-
ings.
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which willl'be expanded by the pressure of _. pivoted on the cross pin Q, and is also held
120
thereof by the action of the gas. "The gas Fig. 7, in which Position, the hammer en
passing to the cylinder A4 when the parts gages with theshoulder I3 on the under side
are in the position shown in Fig.2 will of thebreechbloek and prevents any for
operate to force the; sliding barrel rear-v ward movement-of-the breech block so long .
a; 65
wardly= and the latter carryingvwith it-Ithe as the safety vlever is in. the position shown
breech block will be adjusted to the position in Fig.7. However, the safety levermay
130"
929,491
bepressed by the act of gripping the handle trigger or in any suitable notches 21 therein.v
from the position shown in Fig. 7 to that The sliding barrel is recessed at 22 to receive
shown in Fig. 2, releasing the breech block the upper end of the tri ger look when the
so the latter may be moved by its actuating sliding barrel is forwar as shown in Fig.
spring forward to the position shown, for 2, so the spring 23 will move the lock out
instance, in Fig.9.
\Vhen,
The hammer N is pivoted by the cross however, the sliding barrel is moved rear
pin 1" to the side plates, P of the safety wardly from the position shown in Fig. 2
lever and has the sear shoulder N4 below it will force the trigger lock downward
which the sear operates and is also provided against the action of the spring 23 and into
with the roller N2 for engagement by the the path of the trigver to lock the same, as
will be understood from the drawings.
hannner spring.
The hammer spring N is arranged at its
The scar () operates to hold and release
the hammer and also acts as an escapement upper end to operate the hammer in the
usual manner and has at its lower end the
15 for the trigger. To this end the sear is piv
oted midway between its ends so it may be upturned portion N6 whose free end is held
rocked'into and out of engagement with the by the cross pin N10 on the safety lever so
hammer and is movable longitudinally along the spring Nn may be conveniently secured
its pivot, so itmay be moved down into and may be released from the safety lever
?ring position by the pressure of the ham whenever desired without the use of any
mer, on the sear, the hammer spring. pres separate instrument after the hammer has
ently described being stronger than the sear been removed, and the tension of the spring
spring and the scar also permits the passage N5 thereby released.
The safety lever is pressed to its outer
of the trigger in the movement of the same
to its retracted or ?ring position. The sear or normal position by the spring R which
is pivoted on the pin 0 and is slotted at O" bears between the lower end of the safety
for the passage of said pin, the slot ()2 being lever and the frame and by preference the
elongated in the direction of length of the spring arm for actuating the safety lever,
sear, so the sear can move longitudinally the sear spring R for actuating the sear,
and also rock in the operation of the device. and the trigger spring R2 are made in one
At its upper end the sear is adapted to hold piece, as best shown in Fig. 14 of the draw
and release the hammer by engagement with ings, to which end the spring plate is ?tted
the shoulder or projection N4 thereof, as ,to form the springs R and R2, as shown.
shown in Figs. st and 7. When the parts ' The trigger spring is preferably made of two
are in the position shown in Fig. 7 the upper side sections and the upper ends of the
end of the" sear bears directly in rear of a springs R and R2 are preferably deflected
4- 0
in O
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locking pin or portion 1 1 of the casing. In so that they will exert a forward and up
this position itwill be noticed the sear is ward tension on respectively, the scar and locked so that it cannot be rocked on its the rear end of the trigger 'in the operation
pivot to release the hammer, the position "of the gun, as presently described. In secur
shown in Fig. 7 being that occupied by the ing the spring R inthe safety lever, the lat~
parts when the safety lever P is released ter is provided at itslower end with the up
from pressure and is forced rearwardly by wardly facing notch in which the lower end
its spring Ps presently described. In this of-the spring plate is seated, as best shown
position, therefore, the trigger cannot oper in Fig. 14 of the drawings.
ate to release the hammer, nor can it so oper
ate. nor can the hammer be otherwise re
in
GO
For operating the sear I provide the trig~ upper end of the scar will force the latter
ends of its side bars S", the triggervbeing the cross bar S of the trigger S when the
capable of longitudinal movemtmt and also latter is pulled. After the trigger 1s pulled
having a limited up and down movement at and the hammer is down ,the sear will be
forced upward by the actlon of lts spring I
its rear end.
' .
.-\ trigger lock is provided in the casing and permit the cross bar of the trigger S to
and comprises a sliding pin 20 which is escape in the forward or readjusted move
spring actuated to force its upper end into ment of the trigger, the latter having a lim
the path of the barrel and is arranged at ited up and down movement at its rear end 130
its lower end to operate in front of the to facilitate this escapemcnt action in read
wee
justingihe trigger in the operation of the in
v'vention. In this operation it- will be under
l d
pressure of the main spring acting through the arm L of the extractor L and the back
theharnmer so the lower end of the sear-will 'plu'g B.v >' The back plug B has an opening 70
be in position to be operated by the trigger B1? in" which ?ts the rear end of the guide
75.
forward'and also to press the rear end of the ' under side of the rear extension of the slid
ing barrel and which operatesin a groove
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-L""' on the upper side of the breech block 80
The side lock T is arranged to engage with ejects the shell. In this operation the pro
' . the safety lever and also with the hammer; truding front end of the pin E being en
as well as with the breech bolt in order to gaged by the shell operates as a de?ector for
lock the safety lever and the hammer and the shell and prevents the latter from being. '
'20 the breech block when the said side lock is thrown back against a person standing as
moved from the position shown in full lines alongside the one ?ring the arm. It will be
in Fig. 1 to the dotted line position shown noticed that the spring E operates directly
in the same ?gure. This side lock is shown upon the breech block and between the
in detail in Fig.- 17, and consists of the outer breech block and the back plug and is alsov
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30
ing plate or wing T2; which operates in the the latter may yield as the breech block
slot A21 in the frame A, and the depending 7 moves forward to the position shown in Fig.
wing T, which operates along the inner (3. in which'position the extractor springs
ries the inwardly projecting in T4 which as will be understood from Fig. (iof the
movesinto the slot 254 in the sa ety lever and drawing and in this position the front end
the slot N12 in the hammer when the side of the guide pin E" does not interfere with
lock is moved rearwardly to the dotted line the yielding of the extractor. This arrange
position shown in Fig. 1 and so operates to ment of the'spring also permits the ready
35 lock the safety lever and the hammer from removal of the spring for any desired pur 100
movenient. 'hen moved to such dotted pose and simpli?es the construction-6f the
line position7 the side lock also operates upon arm to a very considerable extent, as will be
"
a pin >t,' which is movable in the frame into understood from the drawings.
The cartridge magazine'll ?ts within its
and out of engagement -with the breech
40 block and presses suchpm upwardly into recess in the handle of the gun. is adapt-ed
- engagement with. the said block, a spring to receive a number of cartridges and has a
acting upon the pin 'to force the same nor spring pressed follower U which forces the .
mally downward and release the breech cartridges upwardly to feed the latter into,
block. In this operation an edge or surface the gun. This follower is provided at its
'45 T on the side lock, Fig. 16 engages the in- ' rear end with a shoulder or projection U2, no
clined lower end t of the pin t (see Fig. 16) which moves upward into the pathv of the
and as the lock is moved longitudinally breech block when the magazine is empty
ates as a lock, but also acts as an indicator when the last cartridge has been ejected from
to show the operator both by sight and touch the magazine and ?red in the operation of
115
when the safety lever and hammer are locked _the invention, thus indicating at once to
the operator that the magazine ,has disl
for action, the side lock'operating thus in charged its last cartridge. At its rear side connection with the safety lever to indicate the ollower U is provided with the vrear 120
go tcllie operator when the gun is ready to be wardly projecting ?nger or thumb piece U,
u
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L and has a hook L2 to engage with the an enlarged portion U through which the. x
?ange on the cartridge shell and is also pro projection U" may be passed in inserting the
vided with the arm~L3 which is perforated ollower block in the magazine casing from 130
929,491
the lower end of the latter. The lower end
wise, as shown in Fig. 23 and then may be adapted in operation to prevent the pulling .
turned to the position shown in Figs. 21 and of the trigger if the barrel is in rear of its 75
22 to lock the plate in place, the front end normal position, and also operating to pre
of the plate UT bearing when the parts are ,vent any forward movement ofthe trigger
arranged. as shown in Fig. 7, against the when the barrel is moved rearwardly.
15 casing.
20
ing and within the laterally bulging por able from such position whereby to actuate
tions A in rear of the lateral openings in .the trigger lock into engagement with the
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the casing and the safety lever which is trigger, the portion of the trigger engaging
spring pressed normally to the outer posi with the lock being movable at an angle to
tion carries the ?ring devices and may be the said lock whereby a pull on the trigger
depressed in grasping the grip of the arm will not cause the lock .to bind frictiona 1y
to bring the ?ring devices into position for against the barrel, the lock being ada ted
the firing operation.
in operation to prevent the pulling o the
In operation when the breech block has trigger if the barrel is in_ rear of its normal
reached its rearmost position the cartridges position, and also operating to prevent any
maybe fed up from the magazine and the forward movement of the trigger when the
breech block may then move forward with
the barrel and the breech block latch will
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therewith and with the barrel forwardly
locking the breech block from any rearward
movement until the lmrrelhas again been
pushed back in position in which the lock
ing
latch C may be released to release the~
40 breech block.
105
reduced extension beyond said portion.
5. In an automatic ?re-arm the combina
While the pistol form is chosen for illus
tration only it should be understood the use tion of the casing having a cylinder for the
of any or all of the improvements are not operation of the gases evolved from the
to any particular kind of ?re-arm vevplosion, a barrel reciprocating in the cas~
'45 restricted
and the right is reserved for various changes ing, and a cup-shape piston oirsaid barrel
in form and arrangement of parts within within the cylinder and at a point 1n rear of
' the scope of the invention.
the muzzle of the barrel.
6. The combination of the casing, a slid-v
I claim :
ing barrel having a rear extension provided
1.
A
?re
arm
comprising
a
sliding
barrel,
50
a trigger, and a trigger lock operated by the with a slot, and a pin crossing the same, a L'
55
tionally against the barreh-the lock being nection with the barrel7 said latch ?tting and '
adapted in operation to prevent the pulling operating within the slot in the barrel ex~
60
of the trigger if the barrel is in rear of its tension and having a notch receiving the
normal position, and also operating to pre cross-pin of such extension whereby to p1v
vent any forward movement ofthe trigger otally mount the latch.
when the barrel is moved rearwardly.
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7. A ?re-arm comprising 'a sliding barrel, ,
2. The combination in a tire arm with the
casing, a trigger and a sliding barrel, of a. with the barrel, and a trigger locl: operated
trigger lock consisting , of a pin movable
65
longitudinally in the casing and arranged in operation to prevent the pulling of the
to project at one end .into the path of the trigger if the barrel is in rear 9f its normal
130
_ 999,491
(It
position, and also operating to prevent any breech bloekgand a pin guiding said spring
forward movement of the trigger when the and carried by the back plug whereby it
barrel is moved rea'rwardly.
1
may be applied and removed therewith, said
8. The combinationof the casing, a sliding pin protruding forwardly; beyond the breech
barrel, a barrel lock adapted. to lock the block when the latter is retracted whereby
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rearwardly.
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s'pring'is compressed.
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30,
whereby the same spring mayoperate the casing to grip the back plug.
I
extractor and alsooperate the breech block , 18. The combination of a casing, a safety
'and also operate the, barrel sliding in _ eon lever having an undercut opening or seat
nection-with the breech block.
_ for a pivot pin, and a pivot pin turning in
11. The combination-of a casing, a sliding the casing and within the undercut opening
barrel, a breech block. sliding with and inde of the safety lever, whereby it may be ad
pendently of the barrel, an extractor pivoted _ justed to position to secure the safety lever
to the breech block and having an arm be or permit the application or removal thereof.
' yond said pivot and provided with an open- _ .
19. The combination of a casi'n , a safety
40 ing, a spring for actuating the breech bloclc lever having an opening or seat' or a ivot
and bearing against said arm of the ex pin, and a contracted slot leading there rom,
tractor, and a guide pin for sa1d spring pro
a
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105
truding. when the spring is contracted adapte to be turned within the opening or through the opening in the extractor arm. - seat of the safety lever and when properlyv
45 12. .The' combination of asliding barrel, a adjusted, to pass through the contracted
. casin having a lateral recess alongside the slot leading thereto.
'
' barre, a latch pivoted between its ends to > 20. The combination of a casing, a safety
.the barrel opposite the casing recess .and lever, and a cross pin movable rotarily in
having its front end spring-into engagement one of said parts, the other of said arts
50 with the front wall of said recess when'the having a seat for the. in with a relatlvely 115
barrel is in its rearinost position, and the cdntracted' opening lea 1n thereto.
breech block operating when advanced upon
21. The combination 0 av casing having .
the rear end of therlatch to release its front its rear end- split or ~divided, forming 0p-.
end from such engagement, substantially as posite spaced apart jaws,-a back plug ?tting
x
55 set forth.
within the rear end of the jeasing, a cross 120
13. The combination with the breech block pin connecting the casing jaws, and threaded
and an extractor, of the breech block spring, ' into connection with-one of said jaws, where
'and a- guide pin ,for said spring; protruding by it may be turned to tighten the jaws, and
'through the breechblock when the latter is a safety lever havin a seat for the cross
60 retracted whereby the said guide pin may pin with a relative y. contracted opening 125
. operate to de?ect or eject a shell.
leading thereto.
back plug ?tted removably thereto, abreech sear stop, a safety. lever supporting the ?r-
block, an extractor carried by the breech , ing mechanism, including a hammer and a
as block, a spring operating the extractor and sear for holding and releasing the same,
130~
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929,491
with the casing, whereby it may be moved casing receiving said plug and adapted to be
to 'set the sear into and out/of pos'ition to be contracted thereon, and means for contract
stopped by the sear stop of the casing.
* .ing the casing upon the back plug.
23. The combination of a casing having a > a 26. The combination of a caslng split or
sear stop7 a sear, and a safety lever carrying
the scar and movable whereby to set the sear
15
into and out of position to be stopped by contracting the jaws upon the back plug.
27.- The combination of a back plug a
24. The combination of a casing having split casin receiving and contracte upon
the sear
10
20
stop.
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SOLON C. KEMON,
PERRY B. TURPIN.
30