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Патент USA US2126788

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Aug. 16, 1938,
2,126,788
G. S. LEWIS
FIREARM
Filed May 14, 1936
3 Sheets-Sheet 1
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Aug. 16, 1938.
2,126,788
G. S. LEWIS
FIREARM
Filed May 14, 1936
3 Sheets-Sheet 2
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Aug._16, 1938.
G. s. LEWIS
2,126,788
FIREARM
Filed May 14, 1936
[49
3 Sheets-Sheet 3
2,125,788
Patented Aug. 16, 1938
UNITED STATES PATENT @FFIQE
2,126,788
FIREARM
George S. Lewis, New Haven, Conn, assignor to
Winchester Repeating Arms Company, New
Haven, Conn” a corporation of Maryland
Application May 14, 1936, Serial No. 79,673
13 Claims.
This invention relates to an improved ?rearm,
and one of its objects is to provide a simple and
reliable ?rearm which may be produced at a low
cost for manufacture.
Another object is to provide a ?rearm having a
a
superior ?ring mechanism of a character which
is economical to produce and which is reliable
and effective in operation.
A further object of the present invention is to
provide a superior ?rearm in which the cocking
of the ?rearm members is accomplished by an
improved
construction
parts.
and
arrangement
of
'
Still another object is to provide a superior
?rearm of the breakdown type, in which the
breakdown action thereof is facilitated by the ?r
ing mechanism.
A still further object is to provide a ?rearm
having superior safety means for automatically
20 guarding against the accidental or unintentional
discharge of the ?rearm.
Other objects and advantages will appear to
those skilled in the art from the following, con
sidered in conjunction with the accompanying
T25 drawings.
With the above and other objects in view, as
will appear to those skilled in the art‘from the
following, considered in conjunction with the ac
companying drawings, the present invention in
"30 cludes all features disclosed therein which are
novel over the prior art, and not elsewhere
claimed by me.
In the accompanying drawings:
Fig. 1 is a broken view in side elevation of a
cal ca breakdown gun embodying the present improve
ments;
Fig. 2 is a view thereof, partly in side elevation
and partly in vertical longitudinal section, and
~40
showing the butt- and barrel-units in their nor
mal positions immediately after the gun has been
?red;
(Cl. 42—69)
Fig. 9 is a similar view of the operating-lever;
and
Fig. 10 is a broken perspective view showing
the ?ring mechanism and associated parts.
The particular breakdown ?rearm herein
chosen for the illustration of the present inven—
tion includes two major units pivoted together
for relative movement. The rear unit of the ?re
arm may for convenience of description be desig
nated as the “butt-unit” and comprises as its main 10
features a frame 20 and a buttstock 2| rigidly
secured to said frame. The complementary front
unit of the ?rearm, designated for convenience of
description as the “barrel-unit,” comprises as its
main elements a barrel 22 and a forestock 23 re
substantially U-shaped form in cross-section and
includes a bottom-wall 24 and spaced-apart side
walls 25—25 providing an upwardly-opening re 20
cess or pocket 28. The recess or pocket 26, just
referred to, is adapted to receive a rectangular
barrel-coupling lug 21 depending from the under
side of the barrel 22 adjacent the rear end of the
latter and forming a rigid feature thereof.
The forward edge of the barrel-coupling lug
2‘! is formed with a transverse forwardly-opening
notch 28, the forwardly-facing semicircular wall
of which engages with and bears upon the periph
cry of a fulcrum-pin 29 extending transversely 30
of the frame 20 adjacent the forward end of its
trough-shaped portion and having its respective
opposite ends rigidly supported in the comple
mentary side-walls 25—-25 thereof.
The complementary side-walls 25--25 of the 35
frame 28, as well as the bottom-wall 24 thereof,
merge at their rear ends into a tubular portion
30 having a forwardly-facing standing-breach 3|
against which the rear end of the barrel 22 abuts
when the ?rearm is closed. Extending rearward 40
ly from the substantially-tubular portion 30 of
Fig. 3 is a broken view corresponding to Fig.
2, but showing the barrel-unit in its breakdown
position with reference to the butt-unit;
Fig. 4 is a view similar to Fig. 2, but showing
the ?ring mechanism cocked preparatory to ?r
the frame are an upper butt-attaching tang 32
111%;
Fig. 5 is a vertical sectional view taken on the
35 having a downwardly-extending cylindrically
contoured operating-head 36 projecting down
line 5—5 of Fig. 4;
Fig. 6 is a similar view taken on the line 6-8
of Fig. 4;
‘
Fig. '7 is 'a broken horizontal sectional view
taken on the line ‘|—'l of Fig. 4;
‘Fig. 8 is a perspective view of the barrel~lock
55 ing member;
15
movably secured to the under-side of the said
barrel. The forward portion of the frame 2!] is of
and a lower butt-attaching tang 33 respectively
secured at their rear ends to a vertical spacing
block or pillar 34.
Mounted upon the upper surface of the tubular
portion 39 of the frame 20 is an operating-lever
wardly through and bearing in a substantially- '
vertical passage 31 formed in the upper Wall of
the tubular portion 38 of the frame 20. The said
operating-head 36 forms a unitary feature of the
operating-lever 35 and is formed in its lower end
with a coupling-notch 38 (Fig. 7) receiving the 55
2
2,126,788
upper end of an operating-?nger 39 upstanding
from a barrel-locking member M.
The said bar
rel-locking member MB is mounted for pivotal
movement upon a transverse pivot-pin iii extend
ing crosswise of the tubular portion 3!) of the
frame 29 and rigidly supported by the respective
opposite side-walls thereof,
The barrel-locking member M3 is provided with
a forwardly-extending locking-nose 42' normally
entering a locking-notch 43 formed in the rear
edge of the barrel-coupling lug 2'! before .re
ferred to. For the purpose of yieldingly urging‘
the locking-nose 42 of the barrel-locking member
Ml into the locking-notch 113 so as to hold the
15 butt-and-barrel units in their aligned positions, in
which they are shown in Figs. 1, 2 and 4, the said
barrel-locking member MI is formed in its rear
face, near its lower end, with a rearwardly open
ing spring-receiving pocket till receiving a helical
20 compression—spring 45 having its rear end bearing
against and looped around a transverse pivot-pin
46 mounted in the tubular portion 31] of the
frame 20.
l
l
Mounted for pivotal movement upon the trans
25 verse pin 46 is an L-shaped tensioning-lever M
having an upstanding-arm 128 and a relatively
long forwardly-extending arm 49. The arm 419
of the tensioning-lever 41 ?ts within a longitudi
nal notch 5!} formed in the lower right corner of
the barrel-coupling lug 21 and is depressed by
the upper wall of the said notch for the purpose of
tensioning a helical ?ring-spring 5i in a manner
as will hereinafter appear.
The helical ?ring-spring 5i encircles a ?ring
35 pin or plunger 52, the forward end of which is
reduced in diameter to form a ?ring-point 53
projectable through a passage 54 in the standing
breech 3| to effect the ?ring of a shell in the
chamber of the barrel 22 in a manner usual in
40 ?rearms. The said ?ring-plunger or member 52
is formed -with a stop-?ange or abutment 55
which is adapted to abut against the rear face of
a stop-?nger or abutment 56, which latter also
acts on occasion as a shifter for the said ?ring
V45 plunger. The said ?ring-plunger extends through
the stop-?nger 56 with freedom for relative recip
rocating movement with respect thereto.
The
stop-?nger 56 extends laterally from a sheet
metal slide 5'! extending laterally with and to one
50 side of the ?ring-plunger 52 and which is formed
at its rear end with a tensioning-?nger 58 ex
tending crosswise of the ?rearm, like the stop
?nger 55 before referred to. By virtue of its two
?ngers 56 and 58, the slide 57! serves when moved
and
when moved rearwardly to bodily shift the ?ring
plunger 52‘ and its ?ring-spring 55 in the same
direction. For purposes of description, the said
slide will be termed a “shifting” slide or member.
The tensioning-?nger 58 is formed with a key
60
hole-shaped notch 58a, with which an annular
clearance groove 58” in the ?ring-plunger 52 may
be aligned during the installation of the said
55 forwardly to tension the ?ring-spring 5i
?ring-plunger in the tensioning-slide 'él'. The
65 rear portion of the ?ring-plunger 52 just for
wardly of its contracted neck-portion 53 bears in
the enlarged inner portion of the notch 58%‘. The
parts are so proportioned, however, that the neck
portion 58 of the ?ring-plunger does not come
70 into registration with the notch 583 under oper
ating conditions, so that the ?ring-plunger is pre
vented from laterally escaping from the tension
ing-?nger 58.
The neck-portion 59 terminates at its rear end
v75 in a rearwardly- and inwardly-tapered annular
cocking-head 60 which on occasion is adapted to
be hooked back of a cocking-?nger 6| laterally
offsetting from a sheet-metal sear generally des
ignated by the numeral 62. In addition to the
cocking-?nger 6|, the sear 62 includes a down
wardly-and-forwardly-extending arm 63 termi
nating in a laterally-bent ?nger 665.
The rear end of the sear 62 extends into a clear
ance-notch 65 formed in the side of the spacing
pillar 34 and is pivotally secured to the said 10
spacing-pillar by a screw-stud 66. The said sear
62 is yieldingly urged in the direction required to
engage its ?nger 64 with the adjacent upper sur
face of a trigger 61 and to engage its cocking
?nger 6| with the cocking-head Si], by a double~ 15
armed sear-spring 68 looped around the screw
stud 66 before referred to. The said sear-spring
68 has its lower arm 69 hooked over the arm 63
of the sear and has its opposite arm 10 bearing
against the under side of the upper tang 32.
The trigger Bl above referred to is mounted for
pivotal movement in a vertical slot ll in the
lower tang 33 of the frame and is hung therein
upon a transverse pivot-pin 12 mounted in the
said tang and extending transversely across the 25
said slot therein. In addition to having a usual
depending ?nger-piece 13, the trigger is formed
with a rearwardly-extending arm ‘M against the
upper surface of which rests the laterally-ex
tending ?nger 64 of the sear 62. The arm ‘M of I30
the trigger 51 has pivoted to its rear end by means
of a rivet ‘15 an upwardly-extending safety-arm
or member 76 which when rocked forwardly as in
dicated in Fig. 2 is adapted to move upwardly into
a longitudinal slot Tl formed in the upper tang >
32 of the frame 20 and which when swung to its
rearmost position, as shown in Figs. 3 and 4, is
adapted to engage with the under side of the
upper tang 32 when an effort is made to pull the
trigger 6'7. The bottom edge of the said safety
arm 16 comes to rest against the upper surface of :40
the lower tang 33 and limits the reverse swinging
movement of the trigger 61.
For the purpose of shifting the safety—arm or
member 16 into either one of its two extreme po
sitions just referred to, the said arm is provided
in its upper end with a coupling-notch ‘(78 receiving
the cylindrically-contoured lower end of a cou
pling-?nger 19 depending from a safety-slide 89
mounted for reciprocating movement upon the
upper face of the upper-tang 32 and extending 50
downwardly into the longitudinal slot Tl therein.
For the purpose of yieldingly holding the safety
slide 80 and hence the safety-arm ‘E6 in either one
of its two extreme positions, the depending cou
pling-?nger 19 of the said slide is provided with .55
a laterally-extending detent-pin Bl engaging with
the free rear end of a crimped detent-spring 82
secured by means of a screw 83 to the under side
of the upper tang 32 to one side of the slot ‘ll 60
therein.
For the purpose of supporting and guiding the
shifting-slide 51 and hence the ?ring-plunger 52,
the said slide has pivotally attached to its lower
edge, adjacent its rear end, a supporting-link 84 .65
which is also pivotally mounted upon the pivot
pin 72 upon which the trigger 67 is mounted.
In addition to acting as a support and guide
for the shifting-slide 51 and hence for the ?ring
plunger 52 the link 84 acts as a safety-locking
member by being provided with a rearwardly
extending safety-locking ?nger 85 which is
adapted on occasion to ?t under the forwardly
extending safety-locking ?nger 86 of the pivotal
safety member 16.
It will be noted that the
2,126,788
upper surfaces of the safety-locking ?nger 85
of the link 84 is concentrically curved with re
spect to its pivot 12 for coaction with the sub
tantially similarly-shaped forward under edge of
the safety-locking ?nger 86 of the safety member
16.
In addition to its being provided with the two
laterally-extending ?ngers 56 and 58 through
which the ?ring-plunger extends, the shifting
slide 57 is also provided with a laterally-ex
tending shifting-?nger Bl which is pierced for the
sliding reception of the rear end of a plate-like
spring-guide or plunger 83 and which has an
upstanding lug 81a reciprocating in a guide
groove 8'1!b formed in the under face of the upper
tang 32 of the frame 20. Mounted upon the
spring-guide 88 is a helical shifting—spring 89
bearing at its rear end against the forward face
of the shifting-?nger 8'? and at its forward end
20 against a forwardly-facing abutment 90 formed
25
30
35
40
50
55
upon the said spring-guide 88. The forward end
of the said spring-guide 88 is laterally offset
and ?ts within a rearwardly-opening socket 9!
formed in the operating-head 36 of the operat
ing-lever 35. As thus constructed and arranged,
in addition to tending to urge the shifting-slide
51 rearwardly, the shifting-spring 89 also exerts
through the intermediary of the forward end of
the spring~guide 88 a force to turn the operating
head 35 into position to align its operating-lever
35 with the ?rearm after the said operating
lever has been swung laterally to the right to re
tract the locking-nose 42 of the barrel-locking
member 40.
For a better understanding of the operation of
the parts above described, let it be presumed
that the said parts are in the positions in which
they are shown in Fig. 2, which are the positions
which the said parts assume immediately after
the firearm has been ?red.
In order to prepare the gun for another shot,
the operating-lever 35 may be swung laterally
toward the right side of the ?rearm by suitable
manual pressure and thus cause the operating
head 36 thereof to turn and rock the barrel
locking member 40 so as to withdraw its locking
nose 42 from the locking-notch 43 in the barrel
coupling lug 21 of the barrel 22. The described
turning movement of the operating-head 36 will
in addition to shifting the barrel-locking member
49 as before described, also force the spring
guide 88 rearwardly, with the effect of further
tensioning the shifting-spring 89 and of causing
the said spring-guide to shift the safety-slide 80
rearwardly. This rearward movement of the
safety-slide will bring the rear portion of the
upper end of the safety-member l6 beneath
the under surface of the upper-tang 32 and
out of full registration with the slot Ti, thus
60 locking the trigger 61 against further operation
until the said safety-member 16 has been again
shifted forwardly.
When the shifting-spring 89 is tensioned as
above described it exerts an increased effort to
shift the shifting-slide 51 rearwardly and hence
acts through the tensioning-lever 41 to lift the
rear end of the barrel 22 with respect to the frame
2!].
As soon now as a manual effort is made
to swing the barrel-unit toward the position in
which it is indicated by broken lines in Fig. 1
and by full lines in Fig. 3, the said shifting
spring 89 will act to assist this movement by
urging the shifting-slide 5"! rearwardly. Inas
much as the stop-?ange 55 of the ?ring-plunger
is engaged with the stop-?nger 56 of the shift
3
ing-slide 51, the rearward movement of the said
slide 51 will carry with it the ?ring-plunger 52
and force the tapered cocking-head 60 thereof
rearwardly so that the same forces its way be
neath the cocking-?nger SI of the sear 62, which .
will swing upwardly until the said cocking
?nger 6! is forward of the forward face of the
cocking-head $0 whereupon it will swing down
wardly to the position indicated in Fig. 3. The
described rearward movement of the shifting 110
slide 51 also serves to rock the supporting-link
?ll so as to bring its safety-locking ?nger 85 be
neath the safety-locking ?nger 86 of the safety
member 16, with the result that the said safety
member and hence the safety-slide 80 is locked
in its safety position in which the trigger 61
cannot be actuated for ?ring the gun until the
gun is fully closed and the said safety-slide is
manually moved to the limit of its forward
V20
movement.
After a fresh cartridge has been inserted into
the cartridge-chamber of the barrel 22 and
?nger pressure has been removed from the op
erating-lever 35, so that the same together with
the barrel-locking member 40 may reassume their
normal positions, the barrel-unit may be swung
into its closed position as indicated in Fig. 4.
The closing movement of ‘the barrel-unit as just
referred to will depress the arm 49 of the lever
ii‘! and cause the upstanding arm 48 thereof to 30
forwardly force the ?nger 56 of the shifting
slide 51 and thereby shift the said slide for
wardly. This shifting of the slide 51 will have
the effect of compressing both the ?ring-spring
5| and the shifting-spring B9. The forward 235
movement of the ?ring-plunger 52 being at this
time prevented by the engagement of its cock
ing-head 60 with the cocking-?nger 6! of the
sear 62.
As the shifting-slide 51 moves forwardly as
above described, the supporting-link 84 will be
similarly rocked, so that its safety-locking ?nger
85 is moved out of the path of the safety-lock
mg nnger 8b 01 the safety-member ‘I6 to per- -
mit the latter to be manually rocked forwardly
when desired by means of the safety—slide 8B.
The parts will now have assumed the positions
in which they are shown in Fig. 4, in readiness .
for ?ring the gun as soon as the operator cares
to shift the safety-slide 8B forwardly and sub
sequently pull the trigger 61.
When the ?nger-piece ‘I3 is pulled rearwardly
after the safety-member 18 has been swung for
wardly into full registration with the slot 11 in
the upper-tang 32, the movement of the said
?nger-piece will rock the trigger 6'! about its
pivot-pin 72 and hence swing the sear 62 so as
to disengage its cocking-finger 6| from the cock
ing-head 6B of the ?ring-plunger 52. The ?r
ing-plunger is thus released to the action of the
now tensioned firing-spring 58 which will snap
the same forwardly, with the effect of ?ring the
cartridge in the rear end of the barrel 22.
As the ?ring-plunger 52 approaches the limit
of its forward movement, just above described, 65
its stop-flange 55 will engage with the rear face
of the stop-?nger 56 of the shifting-slide 51 and
carry the same forwardly with it against the ten~
sion of the shifting-spring 89 until the said ?n
ger 58 strikes against the adjacent rear face of
the barrel-locking member ill} by which the for
ward movement of both the ?ring-plunger 52 and
the shifting-slide El will be checked. As soon
as the forward movement of the shifting-slide
has been checked as described, the shifting
2,126,788
spring 89 will assert itself and move the said
slide and the said ?ring-plunger rearwardly to a
slight degree to the positions in which they are
indicated in Fig. '2. The ?rearm is now in read
oi iness for a repetition of the cycle of loading and
?ring as above described.
The invention may be carried out in other
speci?c ways than those herein set forth with
out departing from the spirit and essential char
'10 acteristics of the invention, and the present em
bodiments are therefore to be considered in all
respects as illustrative and not restrictive, and
all changes coming within the meaning and
equivalency range of the appended claims are
intended to be embraced therein.
I claim:
1. A ?rearm‘ including in combination: a ?r
ing-plunger; a sear for releasably holding the
said ?ring-plunger in its cocked position; a trig
'20 ger movable with respect to and controlling the
said sear; a ?ring-spring encircling the said ?r
'ing~plunger; a shiftable member having a por
tion positioned to limit the ?ring movement of
the said ?ring-plunger; and spring~means urg
ing the said shiftable member in a direction op
posite to the ?ring movement of the said ?ring
plunger and serving to shift the said ?ring-plung
er and the ?ring-spring carried thereby in the
direction required to engage the said ?ring
'30 plunger with the said sear.
2. A ?rearm including in combination: a ?r
ing—plunger; a sear for releasably holding said
?ring-plunger in its cocked position; a trigger
movable with respect to and controlling the said
435 sear; a ?ring-spring urging the said ?ring
plunger into it ?ring position; and means serv
ing to shift the said ?ring-plunger into position
for engagement by the said sear including a
shiftable-abutment constructed and arranged to
$40 receive the thrust of the said ?ring-spring and
engaged by the said ?ring-plunger for being
shifted rearwardly thereby, and a spring urging
the said shiftable-abutment toward the said sear.
3. A ?rearm including in combination: a ?r
245 ing-member; a sear for releasably holding said
?ring-member in its cocked position; a ?ring
spring urging the said ?ring-member into its
?ring position; and means serving to shift the
said ?ring-member into position for engagement
by the said sear including a ?ring-member shifter
having two spaced-apart abutments, one of which
abutments is engaged by the said ?ring-member
for limiting the ?ring movement thereof and the
other of which abutments receives the thrust of ‘
55 the said ?ring-spring, and spring-means acting
through the said ?ring-member shifter to urge
the said ?ring-member into position for engage
ment by the said sear.
4. A ?rearm including in combination: a ?r
ing-member; a scar for releasably holding said
?ring-member in its cocked position; a ?ring
spring carried by the said ?ring-member and
urging the said ?ring-member into its ?ring po
sition; and means serving to shift the said ?r
65 ing-member into position for engagement by the
said sear including a ?ring-member shifter hav
ing two spaced-apart abutments, one of which
abutments is engaged by the said ?ring-member
for limiting the ?ring movement thereof and the
other of which abutments receives the thrust of
the said ?ring-spring, and spring-means acting
through the said ?ring-member shifter to urge
the said ?ring-member into position for engage
275
ment by the said sear.
5. In a breakdown ?rearm, the combination
with a butt-unit and a complementary barrel~
unit movable with respect to the said butt-unit;
of a ?ring-member; a sear for releasably hold
ing said ?ring-member in its cocked position;
a ?ring-spring urging the said ?ring-member 5
into its ?ring position; means serving to shift
the said ?ring-member into position for engage
ment by the said sear including a ?ring-mem
ber shifter having two spaced-apart abutments,
one of which abutments is engaged by the said
?ring-member for limiting the ?ring movement
thereof and the other of which abutments re
ceives the thrust of the said ?ring-spring, and
spring-means acting through the said ?ring
member shifter and urging the said ?ring-mem 15
ber into position for engagement by the said scar;
and means operatively interconnecting the said
?ring-member shifter and the barrel-unit, con
structed and arranged in a manner to cause the
upward swinging movement of the said barrel-i 20
unit to move the said ?ring-member shifter away
from the said sear.
6. In a breakdown ?rearm, the combination
with a butt-unit and a complementary barrel
unit movable with respect to the said butt-unit; 25
of a ?ring-member; a sear for releasably holding
said ?ring-member in its cocked position; a ?r
ing-spring urging the said ?ring-member into its
?ring position; means serving to shift the said
?ring-member into position for engagement by '30
the said sear including a ?ring-member shifter
having two spaced-apart abutments, one of which
abutments is engaged by the said ?ring-member
for limiting the ?ring movement thereof and
the other of which abutments receives. the thrust ~
of the said ?ring-spring, and spring-means acting
through the said ?ring-member shifter and urg
ing the said ?ring-member into position for en
gagement by the said scar; and a shifting-lever
pivoted intermediate its opposite ends and op
eratively interconnecting the said ?ring-member
shifter and the barrel-unit, constructed and ar
ranged in a manner'to cause the upward swing
ing movement of the said barrel-unit to move the
said ?ring-member shifter away from the said H15
sear.
'7. In a breakdown ?rearm, the combination
with a butt-unit and a barrel-unit pivoted for
movement with respect to the said butt-unit; of
locking-means for locking the two said‘ units in
normal alignment, including a manual operating 50
lever; a ?ring-member; a sear for releasably
holding the said ?ring-member in its cocked po
sition; a ?ring-spring urging the said ?ring
member into its ?ring position; and double 55
acting spring-means having one of its ends urg
ing the said operating-lever into its locking posi
tion, and having its opposite end operatively con
nected with the said ?ring-member and urging
the same into position for engagement by the
said sear.
8. In a breakdown firearm, the combination
with a butt-unit and a complementary barrel
unit pivoted to the said butt-unit; of a recipro
cating ?ring-plunger; a sear for releasably hold
65
ing the said ?ring-plunger in its cocked posi
tion; a ?ring-spring encircling and urging the
said ?ring-plunger into its ?ring position; and a
spring-abutment movable with respect to the
said ?ring-plunger and the said ?ring-spring and 70
having a portion against which the said ?ring
spring thrusts; connecting-means operatively
connecting the said spring-abutment to the said
barrel-unit and constructed and arranged to
energize the said ?ring-spring by the relative 75
5
2,126,788
pivotal movement of the said barrel-unit with
respect to the butt-unit.
9. In a break down ?rearm, the combination
operatively connecting the said ?ring-spring ten
with a butt-unit and a complementary barrel
sioning-member with the said barrel-unit, where
by the movement of the latter with respect to
the butt-unit effects the shifting of the said
unit pivoted to the said butt-unit; of a recipro
cating ?ring-plunger; a sear for releasably hold
tensioning-member in a direction required to
cause the same to project the said ?ring-member
ing the said ?ring-plunger in its cocked position;
a ?ring-spring encircling and urging the said
?ring-plunger into its ?ring position; a spring—
abutment movable with respect to the said ?r
ing-plunger and the ?ring-spring and provided
with a portion against which the said ?ring
forwardly; and second spring-means urging the
said tensioning-member into its retired position.
spring thrusts; connecting-means operatively
holding the said ?ring-member in its cocked
position; a shiftable ?ring-spring tensioning
member having two spaced-apart abutments; a 15
?ring-spring urging the said ?ring-member into
its ?ring position and con?ned between the re
spective abutments of the said shiftable ten
sioning-member; and a ?ring-spring tensioning
lever constructed and arranged to be actuated 20
by the relative movement between the two said
units and operatively connected to the said ?r
ing-spring tensioning-lever to eiTect the move
ment thereof into position for tensioning the said
connecting the said spring-abutment to the said
15 barrel-unit and constructed and arranged to
energize the said ?ring-spring by the relative
pivotal movement of the said barrel-unit with
respect to the butt-unit; and second spring
means urging the said spring-abutment in a di
20 rection opposite to the direction in which it is
shifted by the movement of the two said units.
10. In a breakdown ?rearm, the combination
With a butt-unit and a complementary barrel
unit movable with respect to the said butt-unit;
25 of a ?ring-member; a scar for releasably holding
the said ?ring-member in its cocked position; a
shiftable ?ring-spring tensioning-member hav
ing two spaced-apart abutments; a ?ring-spring
urging the said ?ring-member into its ?ring po
30 sition and con?ned between the respective abut
ments of the said shiftable tensioning-member;
and means operatively connecting the said ?ring
spn'ng tensioning-member with the said barrel
unit, whereby the movement of the latter with
35 respect to the butt-unit e?ects the shifting of
the said tensioning-member.
11. In a breakdown ?rearm, the combination
with a butt-unit and a complementary barrel
unit movable with respect to the said butt-unit;
40 of a ?ring-member; a sear for releasably holding
the said ?ring-member in its cocked position; a
shiftable ?ring-spring tensioning-member having
two spaced-apart abutments; a ?ring-spring urg
ing the said ?ring-member into its ?ring position
and con?ned between the respective abutments
45
of the said shiftable tensioning-member; means
12. In a breakdown ?rearm, the combination
with a butt-unit and a complementary barrel 10
unit movable with respect to the said butt~
unit; of a ?ring-member; a sear for releasably
?ring-spring.
25
13. In a breakdown ?rearm, the combination
with a butt-unit and a complementary barrel
unit movable with respect to the said butt-unit;
of a ?ring-member; a sear for releasably holding
the said ?ring-member in its cocked position; a 30
shiftable ?ring-spring tensioning-member hav
ing two spaced-apart abutments; a ?ring-spring
urging the said ?ring-member into its ?ring po
sition and con?ned between the respective abut
ments of the- said shiftable tensioning-member;
a ?ring-spring tensioning-lever constructed and
arranged to be actuated by the relative move
ment between the two said units and operatively
connected to the said ?ring-spring tensioning
lever to e?ect the movement thereof into posi 4.0
tion for tensioning the said ?ring-spring; and
second spring-means urging the said ?ring
spring tensioning-member in a direction opposite
to the direction in which it is shifted by the said
tensioning-lever,
GEORGE S. LEWIS.
45
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