US719955A

US719955A - Magazine-firearm.

Info

Publication number: US719955A
Application number: US6432201A
Authority: US
Inventors: John D Pederson
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-06-12
Filing date: 1901-06-12
Publication date: 1903-02-03
Anticipated expiration: 1920-02-03

Description

Rearward, Magazine.

PATENTED FEB. s, 1903.

J. D. PEDERSON. MAGAZINE FIREARM. APPLICATION FILED JUNE 12, 1901.

s SHEETS-SHEBT 1.

N0 MODEL.

56.36 [N VEN TOR I fl Pea arson A TTORNE Eirecch-loading,

Sfica'm-r 3r=5ech--b10ck,

Rearward, Magazine No. 719,955. PATENTED FEB. 3, 1903.

. J. D. PEDERSON. MAGAZINE FIREARM.

APPLICATION FILED JUNE 12, 1901. no MODEL.

5 SHEETS-SHEET 2.

J 7 J INVENTOR.

BY (J J Pea arson JOHN D. PEDERSON, OF DENVER, COLORADO.

MAGAZINE-FIREARM.

SPECIFICATION forming part of Letters Patent No. 719,955, dated February 3, 1903.

Application filed J1me 12, 1901. Serial No- 64,322. ('No model.)

1'0 rtZ-Z whom, it may concern:

Be it known that I, JOHN D. PEDERSON, a citizen of the United States of America residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Magazine-Guns; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, and to the figures of reference marked thereon, which form a part of this specification. v

My invention relates to improvements in magazine-guns; and it consists of the features, arrangements, and combinations hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a central vertical longitudinal section taken through the receiver, showingthe inclosed mechanism in elevation, the parts being in the position which they occupy immediately after the gun is fired or the cartridge exploded. Fig. 2 is a similar section showing the breech-block retracted to cook the gun, the sear being in engagement with the forward notch or shoulder of the firing-pin.

Fig. 3 is a sec-. tion showing the breech-block fully retracted or open, the shell having been expelled or ejected. Fig. 4: is a section showing the breech-block in the extreme forwardorlocked position with the firing-pin cocked ready to explode the cartridge as soon as the trigger is pulled to disengage the sear from the forward notch or shoulder of the tiring-pin, Figs. 5, 6, 7, 8, 9, and are cross-sections taken on the lines 00 w, y y, w 'w, z z, m m, and n '17., respectively, of Fig. at viewed in the direction of the arrows and shown on a somewhat-enlarged scale as compared with Figs. 1 to 4, inclusive. Fig. 11 is a section taken on the line 0 0, Fig. at viewed in the direction .of the arrow. Fig. 12 is a fragmentary vertical longitudinal section taken through the gu n-barrel and the forward extremity of the migazine-tube, showing the This is the position of the partsimmediately before the shell is thrown out of the receiver.

parts locked. Fig. 1.3 is a cross-section taken through the gun-barrel iorward of the maga z.ine-tube, which is shown in elevation. Fig. 14 is a fragmentary vertical longitudinal section taken through the rear end of the gunend of the receiver, the magazine-tube being partly released. Fig. 15 is a side elevation of the breech-block shown in detail. Fig. 16 isa rear end elevation of the same. Fig. 17 is a detail view of the breech-block viewed from the side opposite that shown in Fig. 15. Fig. 18 is a central vertical longitudinal section taken through the breech-block, showing the scar and firing-pin in the position when the latter is cooked. Fig. 19 is a side elevation of the carrier shown in detail. 20 is a rear end elevation .of the same. Fig. 20 is a front end elevation of the carrier. Fig. 21 is a section taken on the line 8' s of Fig. 3 viewed in the direction of the arrow. Fig. 22 is a similar section taken on the line 8 s, Fig. 4. Fig. 23 shows the gun-barrel and magazine-tube connected with the receiver, the barrel and tube being shown partly in section. Fig. 24 is a similar view showing the magazine-tube partly detached. Figs. 25, 26, and 27 are side, underneath, and rear end views, respectively, of the firingpin shown in detail. Fig. 28 is a rear view of the firing-pin-actuating crank shown in detail. Fig.;29 is an end elevation of the same. Figs. 30, 31, and 32 are detail views of the extractor hook shown on a scale somewhat larger than in the general views. Figs. 33 and'3t are side and rear end elevations, respectively, of the Figs. 35 and 36 are side and rear elevations, respectively, of the trigger. Figs. 37 and 38 are side and front elevations, respectively, of the trigger safety-slide. Figs. 39 and 40 are sections taken on the lines A A and B B, respectively, of Fig. 23 viewed in the direction of the arrows. Fig. 1 1 is a fragmentary section of the receiver, showing the rear end of the action-bar engaging the crank and the recess in the wall of the receiver above the action-bar channel adapted to allow the crank to revolve forward out of engagement with the action-bar as the latter is pulled forward preparatory to disconnecting the barrelifrom the receiver. The said recess is indicated by sear shown larger than in the general views.

barrel and magazine-tube and the forward t. each-loading,

dotted lines. Fig. 42 is a fragmentary top view of the magazine-tube, showing the forward extremity of the handle 38. Fig. 4.3 is

an end elevation of the cartridge-follower.

Fig. #1 1 is a horizontal section taken through the receiver, showing the carrier in top plan view.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate the receiver or casing inelosing the chief operating parts of the mechanism, which will now be described. The receiver-chamber is open at the bottom, as shown at 5, for the escape of the shells and for the introduction of cartridges to the magazine-tube, but is closed at the top and on both sides, thus protecting the inclosed parts and excluding the dirt and moisture as far as possible. The breech-block 6 when at its forward limit of movement, as shown in Figs. 1 to 1, engages a recoil-shoulder 5, formed in the upper part of the receiver and adapted to engage the rear extremity of the breech-block at the top when the latter is in the position stated, or locked. The breech-block is recessed to receive the firing-pin '7, which is inserted from the rear. This firing-pin is of the construction shown in Figs. 25 to 27, inclusive, and is provided with a stem 7, whose forward extremity terminates in a nose 7, adapted to indent the primer of the cartridge and explode the latter when the trigger is pulled. a The cocking-head is provided with

notches

7 and 7*, adapted to he engaged by the sear S, which is pivoted on the spindle 20, mounted in the breech-block. The position of the sear is immediately below the rear part of the firing-pin stein. In a planeat the left of the firing-pin stem (see Fig. 27) the cocking-head is provided with a depending part 7", whose lower portion has a forward projection 7". Extending below and somewhat to the rearot' the projection 7' is a plate 7 milled on its lowersurface, which is exposed through an opening in the rear lower part of the breechblock, so that the firing-pin can be either cooked or let down by hand without the full force of the mainspring at willof the operator. The stem 7 of the firing-pin is surrounded by a coiled spring 9, whose forward extremity engages a shoulder 7" in the rear of the nose 7, while its rear extremity bears against a shoulder 6 of the breech-block, formed by insertinga bushing from the rear in the opening for the firing-pin stem. The position of the firing-pin and sear in the breech-block when the parts are assembled is best-shown in Fig. 1B. In this view the position of the lower part of the cocking-head is indicated by dotted lines, as it would not appear in the section. In one side of the breech-block and at abontthe center thereof is formed acurved recess 6, in which a crank or movable device 10 is adapted to turn. This crank is provided with a spindle 10,engaging a transverse opening formed in the breech-block, in which the spindle is free to revolve. The arm or triangular part 10 of the crank is provided with two

lugs

10 and 10*, extending in opposite directions therefrom. The lug 1O protrudes into the groove 5 in the left side of the receiver-wall and is engaged by a notch near the rear extremity of the action-bar 12 when the parts are assembled in operative relation. The lug 10* engages the projection 7 of the cocking-head and acts thereon to impart the cocking movement thereto when the crank is actuated by the rearward thrust of the actionbar. That portion of the recess in which the lug 10* works is deepest and is designated by the reference character 6, the shallower part being designated by 6. The lug 10 of the crank projects into a longitudinal groove 5, formed in the adjacent side of the receiverwall, said groove being adapted to receive the action-bar 1.2. The inner surfaces of the side walls of the receiver are provided with ledges 5 which are inclined downwardly and inwardly from the front end of the receiver. The breech-block is provided with shoulders 6 extending parallel with the axis of the gun-barrel and adapted to rest on the inclined ledges of the receiver for a purpose hereinafter explained.

The forward extremity of the breech-block is provided with a triangular recess 6 in which is located an extractor-hook 13, which comprises an arm 13, from which projects a pin 18, by which the arm is pivoted. The forward extremity of the arm 13 is provided with a projection 18, in which is formed a recess 13, adapted to receive the rim of the shell l t. The arm 13 of the extractor-hook is provided with a lug 13", which projects in a direction opposite the part 13 and engages a longitudinal recess 12 formed in the adjacent side of the action-bar, whose movement is in a line parallel with the axis of the gunbarrel. Hence by reason of the engagement of the lug 13 with the groove in the actionbar the hook is maintained in position to engage the shell until the latter is removed from the cartridge-01mmber while the breech-block is traveling rearwardly on the downwardlyinclined ledges of the receiver-walls, as hereinafter explained. As the breech-block is moved rearwardly through the instrumentality of the action-bar the shell 14 is withdrawn from the cartridge-chamber to the position shown in Fig. 2. The ejector mechanism which then acts on the shell will now be described.

An upwardly-projecting arm 15 is pivotally mounted on a spindle l5, journaled in the receiver-wall above the breech-block chamber. The arm 15 projects upwardly into a recess 5 formed in the receiverwall. This arm is provided with a lug 15, projecting downwardly from the spindle and engaging a 1ongitudinal groove (5 formed in the top of the breech-block. At the forward extremity of the groove is located an inclined shoulder 6- which acts on the projection 15 to turn the arm 15 on its pivot and throw the arm forwardly. Located in a groove in the receiverwall in front of the arm is a slide 16, having a downwardly-projecting lug 16 formed on its front end. As the breech-block continues its rearward movement from the posi-' tion shown in Fig. 2 to the position shown in Fig. 3 the slide 16, actuated by the arm 15, which engages a recess 16 therein, acts on the shell to disengage it from the extractorhook and throw it downwardly through the opening 5 and out of the receiver. Aspring 17 is attached to the npperwall of the receiver by a screw 18. This spring is located in the rear of the ejector mechanism and bears on the projection 15, whereby the ejector-arm 15 is normally held in its rearward position, or that shown in Fig. 2 of the drawings. When the breech-block is in the position shown in Fig. 1, the projection 16 of the slide is located in a recess 6", formed at the rear extremity of the groove b' During the rearward travel of the breechblock, which is actuated by the action -bar, the latter engages the projection 10 of the crank 10 and turns the latter sufficiently 'to cause its part l0 to act on the part 7 of the cockinghead and move the latter in the breech-block sufficiently to allow the sear 8 to engage a second notch 7 of the cockinghead, whereby it is held in the cooked position. The sear is normally pressed upwardly by a coil-spring 19, seated in the breechblock. When the breech-block begins its rearward travel, the projection 8 of the sear engages the first notch 7 of the cocking-head. The forward extremity of the sear is pivotally mounted on the breech-block, as shown at 20. The scar is provided with a recess 8 for the spring 19, a part 8 projecting rearwardly from the said recess and a lateral arm 8 projecting to the right of the rear extremity of the part 8. (See Fig. 34:.) When the breech-block is in the rearmost position, the

gun is said to be open. During the opening action the firing-pin is cocked and the shell extracted and ejected and the carrier is moved downward, releasing a shell from the magazine. The breech-block must then be moved forward to the locked position. (Shown in Fig. -l-.) Thisisaccomplished by the forward movement of the action-bar. When the breechblock is in this position, the sear is brought into the position to be engaged by the trigger 21, which is pivoted in the receiver, as shown at 22. The upper forwardly-projecting arm 21 of the trigger is provided at its forward. extremity with a lug 21, which engages the part 8'=' of the sear from above when the parts are in the position shown in Fig. 4c. This lug 21 of the trigger projects into a longitudinal groove 6 formed in the right side .of the breech-block. Between the lower arm 21 and the upper arm 21 is an offset 21 extending at right angles to the said arms. By reason of this offset the arm 21 is located considerably to the right of the arm 21. (See Figs. 35 and 36.) The trigger is also provided with a lower arm 21 extending forwardly in the plane of the arm 21 and provided with a downwardly-projecting lug 21, adapted to enter a recess 23, formed in the upper side of a small safety-slide 23, movably mounted in the forward upper part of the trigger-guard 24 by means of a pin 25, passing through a slot 23, formed in the slide. A small leaf-spring 26 bears on the pin from above and is adapted to hold the slide in the adjusted position. The slide is adjustable back and forth by the thumb or finger of the user of the gun. When the slide is in the forward position, the recess 23 is in position to receive the projection 2P of the trigger, thus allowing the triggerto be pulled. lVhen in the rearward position, however, the upper part of the slide forward of the recess is located immediately below the trigger-lug 21 and prevents the pulling of the trigger. The slide may be adjusted to occupy this lastnamed position after the cooking of the gun,

to prevent the firing of the gun by the acci-.

dental pulling of the trigger. When the user is ready to fire, the slide may be quickly moved forward by the trigger-finger. the firing-pin is in the cocked position and the breech-block locked, the action-bar 12 and the crank 10 are locked against rearward movement by the horizontal'swinging lever 27, fulcrumed in the right-hand side of the breech-block, as shown at 28. (See Figs. 7 and 11.)

The terms right and left when used in this specification, except when otherwise specified, will refer to the position of the parts when the gun is held in the position for use. The side at the right hand of the user is termed the right and the opposite side the left. The breech-block is recessed to receive this lever and allow it to act. The right wall of the receiver is also recessed to allow the rear arm of the lever to project thereinto.

This lever is normally held in the positionshown in Fig. 11 by a coil-spring 29, seated in suitable recesses formed in the lever and breech-block, respectively. The normal position of the lever may be changed by a button 30, seated in the wall of the receiver, and whose inner extremity is adapted to engage the rear arm of the lever when the breechblock is at its forward limit of movement. When the firing-pin is cooked and the breech block in the forward position, (see Fig. 4,) the lever 27 is in the position shown in Fig. l1 that is to say, with its lateral projection 27" located immediately in the rear of and engaging the lug 10 ofthe crank 10, thus locking the crank from turning and preventing the rearward movement of the action-bar 12. The arm 27 of the lever also projects upward. (See Fig. 2 and dotted lines in Figs. 1, 3, and 4:.) The arm 27 of the lever is provided on its inner extremity with a hook-shaped spring 3 1, secured thereto by a screw or other suitablefastening device. This sp ing projects slightly into the path of the projection 7' of the cooking- IIO iiirecchdoading,

i iearwardt Magaziw head during its forward movement in response to the action of the mainspring when the trigger is pulled. Hence the firing-pin acts on the spring, giving it a tension whose tendency is to throw the lever out of the path of the crank part As the cartridge explodes the gun recoils, except the handle 38, (see Figs. 23 and 2a,) which being grasped by the hand of th'e' user is held stationary relatively to the other parts. This recoil action throws the lever 27 and its connections rear- I wardly slightly, while the crank 10 is held by the action-bar against movement, thus separating the crank from the lever 27, which is thrown outwardly through the instrumentality of the spring 31, acted on by the firingpin, as aforesaid, thus leaving the; mechanism in position to allow the hammer to be recocked.

The carrier mechanism or the mechanism for raising a cartridge to the position in front of the chamber at the rear end of the barrel after the shell of the exploded cartridge has been extracted will now be described.

The carrier device is shown in detail in Figs. 19, 20, and 20. Let the numeral designate the device as a whole, which is provided with a comparatively long stem or spindle 32, from which projects intermediate its extremities a comparatively broad wing or plate 32, approximately rectangular in shape. To one side of this wing is attached a leaf-spring 32. This spring is located close to the spindle and projects beyond the forward extremity of the wing when the parts are assembled. (See Figs. 1, 2, 3, and 4.) The forward extremity of the spring 32 projects beyond the plane of the wing on one side, and asmall lug 32 located slightly forward of the spring, projects beyond the plane of the wing on the op posite side. The rear extremity of the spindle, or that farthest to the left in Fig. 19, is provided with a projection 32, which forms oblique angles with the axis of the spindle. It may also be described as a portion of a screw-thread. This spindle 32 is journaled in the right wall of the receiver and occupies a position slightly inclined to the axis of the barrel. The position of the carrier when not in use is shown in Fig. 6, when the wing 32 occupies a. recess in the right wail of the receiver outside of the path of the breech-block. When in this position its forward extremity lies in the wall of the receiver at the rear end of the magazine-tube, and the forward extremity of the spring 32 occupies a position immediately in the rear of the rearmost cartridge and prevents the cartridge from entering the receiver in response to the action of the spring 33 in the magazine-tube. During this time the projection 32 is concealed within a recess 5, occupying a position a little in advance of the forward extremity of the spring. WVhen the carrier is in the position statedgtthe rear end of its part 32 is concealed within ,a recess 5 formed in the wall of the receiver, while its forward extremity projects inwardlyinto the line of the groove 6, formed in the right side of the breech-block. The forward extremity of this groove is provided with an inclined face 6", while its lower wall is provided with inclines 6 and 6, the latter being somewhat in the rear of the former. New assuming that the parts are in the relative positions shown in Fig. 1 as the breechblock is moved rearwardly, being first depressed below the stop 5, as heretofore explained, the forward extremity of the part 32 first enters the straight portion of the groove 6 The movement of the breechblock has no effect on the carrier until the shell 14- has been extracted and ejected, as heretofore explained. Immediately thereafter and as the rearward movement of the breechblock is continued (see Fig. 3) the inclined face 6" of the breech-block is brought into engagement with the front extremity of the part 32 of the carrier, and the latter is turned on its spindle, throwing the wing 32 downwardly in the receiver, forward of the breech-block, to -the position shown in Fig. 3. This action throws the forward end of the part 32 into the lower part of the recess -5- in the wall of the receiver and brings the rear extremity of the said part into the groove 6 of the breech-block and into contact with the face of incline 6 of the groove. During this operation the forward extremity .of the carrier has turned to a position throwing the forward extremity of the spring 32 out of the path of the cartridge into a slight recess below the axis of the carrier-spindle, (see Fig. 21,) allowing a cartridge to be forced out of the magazine-tube into the receiver and to a position on top of and supported by the wing 32, and the projection being a little forward of the spring extremity occupies a position behind the rim of the next cartridge and holds it in position in the magazinetube. It will be observed that when the front end of the spring 32 engages the rim of the rearmost cartridge the lug 32 occupies a position forward of that rim and in position when the spindle is turned, as explained, to be brought into the path of the rim of the next cartridge as soon as the rearmost cartridge moves out of the way into the receiver. Then as the breech-block is moved forwardly, as heretofore explained, the incline 6 at the bottom and forward extremity of the groove 6 engages the rear end of the part 32 underneath, turning the carrier on its spindle and raising the wing 32 to the position shown in Fig. 22, whereby the cartridge is raised into axial alinement with the cartridge-chamber at the rear end of the gun-barrel. At this stage of the operation the carrier pauses for an instant, being still beneath the cartridge and supporting it in place, in order to allow the forwardly-moving breech-block to act on the cartridge and bring its forward end into the rear extremity of the cartridge-chamber. This pause of the carrier is while the breechblock is moving the distance from the rear end of the incline 6 to the short incline 6-, which then acts on the carrier part 32 to turn the spindle sufficiently to return the wing of the carrier into its recess in the wall of the receiver or to its original position, the cartridge being forced into its chamber as the breech-block completes its forward move ment.

The forward part 5 of the receiver is provided with a shoulder 5, beyond which projocts an interiorly threaded part 5, into which is screwed a bushing 5*, threaded both interiorly and exteriorly. The inner threads of the part 5 and the exterior threads of the bushing are fine or have but little pitch as compared with the inner threads of the bushing. The interior bushing threads are double to correspond with the exterior threads formed on the rear extremity of the barrel 3-1. Against a shoulder 34, formed on the barrel, is screwed a ring 35, which abuts against the part 5 and the bushing 5 when the barrel is screwed to position. (See Fig. 14.) The function of the relatively fine and coarse threads of the bushing is to com pensate for wear between the threads of the bushing and. barrel. When these threads are so worn that the barrel is loose, the wearmay be taken up by unscrewing the bushing a part of a turn, which'will not appreciably advance the bushing or move it forward in the receiver extension, but will change the position of the coarse threads of the bushing engaging the barrel sufiiciently to take upthe wear or lost motion, as before explained.

The magazine-tube 36 is provided with a thimble-sbaped follower 37, having lugs 37 on opposite sides engaging grooved ways 36 formed longitudinally in the opposite sides of the magazine-tube. This follower when the magazine is empty is held by the spring 33 in the rear extremity of the magazine-tube. (See Figs. 14 and 23.) The follower is prevented from moving too far rearwardl y in the magazine by the engagement of its lugs with the rear extremities of the ways 36 which terminate near the rear extremity of the mag Mine. The front end of the follower is cut away exteriorly to make room for the rear extremity of the magazine-tube and allow it a limited degree of movement on the lugs 37*, which form trunnions or pivots for the tube when in the position shown in Fig. 14. The rear extremity of the magazine-tube is provided with two

exterior projections

36 and 36,eacl1 preferably extendiugabouthalf-way around the tube. The engaging face of the lug 36" is toward the rear and abuts against a shoulder 35, formed on the lower side of the ring 35, while the face of the lug 36 is toward the front and engages a shoulder 5 on the lower side of the receiver. When the magazine-tube is tilted by lowering its forward extremity, (see Fig. 24,) its rear extremity may be raised sufiiciently to disengage the lug 36 from the shoulder 5 and limit of movement by a spring 41.

permit the magazine-tube to be detached from the receiver.

The handle to which the action-bar 12 is attached is slidably mounted on the magazine-tube. The forward extremity of this handle normally or when the parts are as sembled engages a shoulder formed on the lower side of the barrel, and. prevents the handle from moving forward far enough to detach the action-bar from the mechanism within the receiver.

In the forward extremity of the magazine tube is inserted a plug 39, whose inner extremity is provided with an enlarged disk shaped to fitthe tube,whose forward extremity is provided with a-bushing 36, located in front of the disk on the plug, which is normally held at its forward limit. of movement by the magazine-spring When the magazine-tube is locked on the barrel, (see Figs. 12 and 23,) a forwardly-projecting detent 39, formed integral with the plug, engages a hook 34, formed on a lug 34, projecting downwardly from the barrel in frontof the magazine -tube. Movably mounted on the barrel in the lug 34 is a dog 40, whose lower extremity is provided with a hook located slightly below a shoulder formed on the upper part of the bushing 36. The dog 40 is normally held at its rearward The forward extremity of the plug 39 is milled at 39 By pressing rearwardly upon this milled surface the plug may be forced inwardly against the spring 33 sufficiently to release the detent 39 from its engaging hook. As soon as this is done the forward end of the magazine may be lowered until the bushing 36 engages the dog 40. This movement will be sufficient to detach the forward end of the handle 38 from the shoulder 34 'The handle 38 may then be moved forwardly far enough to draw the action-bar out of the receiver. This forward movement of the handle is sufficient to bring its forward extremity into engagement with the rear extremity of the dog 40, which is thereby moved forwardly enough to release the magazine-tube from the hook of the dog. The magazine may then move downwardly to the position shown in Figs. 14 and 24, when it may be detached from the receiver by a forward movement.

The opening (W for the pivot 13 of the extractor-hook is somewhat elongated to permit a limited movement of the'hook in a direction endwise of the breechblock to allow the hook to engage the rim of the shell, as hereinafter explained. In the rear of the recess (W is a small recess 6", in which is located a leafspring 141, which engages the pivot 13 and normally holds it, as well as the body of the hook, at its forward limit of movement. When the breech-block approaches its for ward limit of movement and has reached-the position ready to move upward in frontof the recoil-shoulder 5, the part 13 of the exv tractor-hook engages the rim of the cartridge and the extractor-hook is forced rearwardly against its spring 141, which is thereby placed under tension. It will be remembered-that the lug 13 of the extractor-hook engages a groove formed in the upper part of the actionbar 12. (See Fig. 5.) As the forward movement of the action-bar is continued to raise the breech-block into position in front of the recoil-shoulder a slight recess 12 in the bottom wall-of the action-bar groove is brought directly beneath the lug 13 of the extractorhook, and the tension of the spring ll forces the hook forward to a position bringing its recess 13 directly below the rim of the car tridge. Then as the action-bar is moved rearwardly to bring the breech-block below the recoil-shoulder 5 the recess 12 is moved to the rear of the lug 13, and the bottom wall of the action-bar groove, in which the lug is seated, forces the part 13 upwardly, whereby the rim of the cartridge will be seated in the recess 15 of the extractor-hook, and as the action-bar continues its rearward movement, as heretofore explained, the hook extracts the shell from its chamber.

From the foregoing description it will be observed that my improved gun is of the hammerless class, and its operation, which will now be readily understood, will be briefly but connectedly set forth.

It will be assumed that the magazine is full of cartridges, in which event the follower 37 will occupy a position forward of the foremost cartridge, the spring being compressed between the follower and the plug 39 in the forward extremity of the magazinetube. The cartridges are inserted in the magazine-tube through the opening 5 in the bottom of the receiver. It will also be assumed that the mechanism within the receiver is in the position shown in Fig. 1 of the drawings. In this event the forward extremity of the spring 32 engages the rearmost cartridge and prevents it from entering the receiver by the force of the magazinespring 33. Now the user of the'gun wishing to extract the exploded shell from its chamher and eject the shell from the receiver cocks the firing-pin and places a cartridge in the chamber from which the shell has been extracted, pulls rearwardly on the handle 38, forcing the action-bar against the part 10 of the crank, and moves the latter sufficiently to pull the rear extremity of the breech-block downwardly below the recoil shoulder 5. The rear extremity of the breech-block and the forward face of the shoulder are curved to permit this movement. The inclined shoulders 5 of the receiver support the forward extremity of the breech-block during this action. The rearward movement of the actionbar being in a line parallel with the axis-of the gun-barrel and cartridge-chamber causes the breech-block to assume the inclined position, with its rearward extremity lowermost, since the part 10 of the crank is prevented .from moving upwardly in the arc of a circle,

and. the spindle of the crank is drawn downwardly, bringing with it the breech-block in which the crank is journaled. During this action of the crank the part 10 of the latter acts on the part 7 of the cocking-head and retracts the firing-pin. As the rearward pull of the handle 38 is continued the cooking of the firing-pin is completed by the continued turn of the crank, which is operated by the action-bar. The crank continues to revolve by virtue of the fact that the action-bar moves in a path non-parallel to the direction of movement of the breech-block, but parallel, or nearly so, to the axis of the chamber. The breech-block follows the ledges 5 of the receiver, while the path of the action-bar is parallel to the axis of the gun-barrel, as heretofore explained. As soon as the liring-pin is cocked the sear enters its forward notch and holds it in the cocked position. Simultaneously with the cooking of the firing-pin the shell is withdrawn "from its chamber by the extractor-hook and ejected through the instrumentality of the ejector mechanism composed of the

parts

15 and 16, operating as heretofore explained.

After the ejection of the shell the breech-block, by virtue of its' groove 6 having the inclined faces 6, 6", and 6", acts on the part 32 of the carrier to throw the carrier-wing 32 downwardly to the position shown in Fig. 3. This movement does not occur until after the shell has been ejected, since the breech-block does notact to move the carrier until its inclined face at the forward extremity of the grciovc 6 is broughtinto contact with the part 2-32. Then the carrierwing has reached its downward limit of move- 11] ent, the forward extremity of the spring 32 is thrown out of the path of the cartridge and into a recess in the receiver-wall, thus allowin g the rear most cartridge to move rearwardl y into the receiver and occupy a position above and lying on the carrier-wing. At this time the projection is brought into the path of the rim of the next cartridge and prevents its entrance into the receiver. As the handle 38 is moved forwardly the breech-block, by virtue of the connection of the crank 10 with the action-bar, is moved forwardly and returned to its position with the upper part of its rear extremity abutting against the recoil-shoulder 5. As the breech-block begins this forward movement it acts on the carrier, causing it to raise the cartridge upwardly in the receiver in front of the forward extremity of the forwardly-moving breech-block, which acts on the cartridge to force it into the cartridge-chamber, tho carrier-wing retiring into its recess in the wall of the receiver in time to get out of the way of the breech-block,'all of which has been explained heretofore more in detail. When the carrier-wing is in this position, the projection is concealed Within a recess of the receiver-wall and the forward extremity of the spring 32 is brought into the path of the rearmost cartridge of the magazine-tube and holds it against entering .coiver.

and as the latter is pulled the sear is actuated to release thefiring-pin, which, actuated by its spring, moves forwardly and explodes the cartridge.

To take down the gun or detach the barrel and magazine-tube from the receiver, the

plug 39 is first pushed rcarwardly to allow the magazine-tube to drop enough to release the handle from the shoulder 34 of the barrel, after which the handle may be moved forwardly against the dog 40, which is actuated thereby to release the magnazine-tube, which may then be detached from the receiver by a downward and forward movement, which also draws the action-bar out of the receiver, the part of the crank engaged by the action-bar moving upwardly in the recess m, as shown by dotted lines in Fig. 41, to allow the action-bar to pass out of the re- The barrel is removed by unscrewing it from the receiver extension by virtue of the construction heretofore explained.

The ring 35 is provided with depending projections 35, (see Fig. 39,) which embrace the magazine-tube on opposite sides and prevent the barrel from turning when the parts are assembled. This ring is provided with a recess in its lower side, which a segment of a collar 9 (see Fig. 39) on the magazine-tube is adapted to engage. The extremities of the segment-collar on the magazine-tube engage shoulders .2 at the extremities of the recess in the ring.

Attention is called to the fact that when the rear end of the breech-block is lowered, as described, its forward end is supported by virtue of the engagement of the forward extrcmities of its shoulders h with the corresponding extremities of the inclined ledges of the receiver.

The handle 38 of the magazine-tube is cut away at the top to form a seat for the barrel. This handle is provided with an interior ring -17, adapted to engage the stop 34* of the barrel from the front when the barrel and tube are detached from the receiver and connected together, as is customary when not in use. This construction holds the handle securely in place under such circumstances. This handle is provided at its forward extremity with an interior metal ring or band 46, which reinforces and stii'fens the handle. Without this ring the compression resulting from the grasp of the hand of the user of the gun causes the handle tobind on the tube, thus preventing perfect freedom of movement. A spring is formed at the top and forward edge of the ring 46 by cutting a slit therein and raising the metal to form a yieldingpart (see Fig. 42) adapted to engage the stop 34 of the barrel as the handle is moved to the The yielding capacity of forward position. this spring is sufficient to break the force of the blow, forming, in effect, a buffer.

Having thus described my invention, what I claim is 1. In a magazine-gun, the combination of a receiver, a breech-block longitudinally movable therein, the receiver being provided with a recoil-shoulder which engages the rear extremity of the breech-block when the mechanism is in the locked position, a crank mounted to turn in the breech-block, a firingpin moved to the cooked position by the action of the crank, a scar mounted in the breech-block in operative relation with the firing-pin,and an action-bar arranged to move in a line parallel or nearly so with the axis of the gun-barrel, said bar engaging and actuating the crank, the engaging part of the latter being carried in a straight line with" the action-bar, whereby the rear end of the breech-block is lowered to release it from the recoil-shoulder as the action-bar begins its rearward movement, and raised to lock the breech-block as the action-bar completes its forward movement.

2. The combination with a receiver, and a breech block located therein, of a crank mounted to turn in the breech-block, a firingpin moved to the cocked position by the action of the crank, a scar mounted in the breech-block in operative relation with the firi ng-pin, and an action-bar arranged to move in a line parallel or nearly so with the axis of the gun-barrel, the action-bar engaging a part of the crank outside of its axis and causing said part to move with it in a straight line, whereby the axis of the crank is lowered while the action-bar is moving in one direction and raised while the action-bar is moving in the opposite direction.

3. The combination of a receiver having a recoil-shoulder in its upper portion, a breechblock engaging said recoil-shoulder, a firingpin mounted in the breech-block, an actionbar arranged to move in a line parallel or nearly so with the axis of the gun-barrel, a connection between the action-bar and the breech-block whereby the action-bar during the first part of its rearward movement cocks the firing-pin, lowers the extremities of the breech-block to disengage it from the recoilshoulder and during the last part of its for ward movement, raises the breech-block to the locked position in front of the recoilshoulder, and a scar mounted in the breechblook and connected in operative relation with the firing-pin.

4. The combination of a receiver having a groove in its wall parallel or nearly so with the axis of the gun-barrel, an action-bar arranged to move in said groove, a breech-block longitudinally movable in the receiver in a line forming an angle with the axis of the gun-barrel, a firing-pin mounted in the breechblock, a device mounted to turn in the breechblock and having a radial extension projecting into the groove in the wall of the receiver, to engagement with the action-bar and carried in the line of the latters travel, whereby the said device is turned in the breech-block during the longitudinal travel of the latter, the said device being provided with a second radial extension which acts on the firing-pin to move the latter to the cocked position, and a scar mounted in the breech-block for holding the firing-pin in the cooked position.

5. The combination of a receiver having its axis inclined to that of the gu n barreha breechblock located in the receiver and whose axis is parallel with that of the gun-barrel when in the locked position, means for holding the breech-block in the last-named position, a firing-pin mounted in the breech-block, an action-bar arranged to move in a line parallel or nearly so with but below the axis of the gun-barrel, a crank mounted to turn in the breech-block and having two radial extensions one of which is engaged by the actionbar while the other engages the firing-pin, whereby during the first part of the rearward movement of the action-bar, the firing-pin is moved to the cocked position, the breechblock unlocked and tilted to cause its axis to coincide with that of the receiver-chamber, after which the breech-block is moved longitudinally in said chamber as the action-bar continues its rearward movement, and a soar mounted in the breech-block for holding the tiring-pin in the cocked position.

6. The combination of a receiver the axis of whose chamber is inclined to that of the gunbarrel,and a breech-block longitudinally movable therein, a spring-actuated tiring-pin, an action-bar movable in a line parallel or nearly so with the axis of the gun-barrel, a crank mounted to turn in the breech-block and having a radial extension, said extension being engaged by the action-bar and movable in the line of the latters travel, the said crank being turned in the breech-block by the action-bar during the longitudinal travel of the breech-block which is also operated by the action-bar, the said crank having a part which engages the firing-pin and moves the latter to the cooked position as the crank turns in the breech-block and a, scar mounted in the breech-block for holdingthe firing-pin in the cocked position.

7. The combination of a receiver, a breech-.

block longitudinally movable therein, a spring-actuated firing-pin, an action-bar movable in a line forming an angle with the axis of the receiver-chamber, a crank mounted to turn in the breech-block and having a radial extension, said extension being engaged by the action-bar and moved in the line of its travel, the said crank being turned in the breech-block by the action-bar during the longitudinal travel of the breech-block which is also actuated by the action-bar, the said crank having a part which by virtue of its turning action engagesfthe tiring-pin and moves it to the cocked position, and a sear mounted in the breech-block for holding the firing-pin in the cooked position.

8. The combination of a receiver; an ac- Lion-bar movable in a line forming an angle with the axis of the receiverchainber,a springactuated firing-pin, a crank mounted in the breech-block and having a radial extension, said extension being engaged by the actionbar and moving in the line of its travel, said crank having another part located outside of its axis, said last-named part engaging the firing-pin and moving it to the cocked position during the longitudinal travel of the breech-block which is also actuated by the action-bar, and a sear mounted in the breech block for holding the firing-pin in the cocked position.

9. The combination of a receiver, the axis of Whose chamber is inclined to the axis of.

the gun-barrel, a breech-block longitudinally movablein the receiver, an action-bar movable in a line at an angle to the axis of the receiver, and in the direction of the travel of the breech-block, a spring-actuated firingpin, a crank mountedin the breech-block and having a radial extension arranged to act on the firing-pin, another radial extension engaged by the action-bar and arranged to be moved by the latter in its line of travel, the firing-pin being moved to the cooked position by the action-bar as the latter is moved rearwardly, a breech block moved in the receiver-chamber in the direction of the latters travel, and a sear mounted in the breechblock for holding the firing-pin in the cocked position.

10. The combination of a receiver, abreechblock. longitudinally movable therein, a

spring actuated firing pin carried by the breech-block, the wall of the receiver being providedwith a longitudinal recess or channel, an action-bar moving in said recess or channel, crank mounted in the breechblock and provided with a radial extension projecting into said channel to engagement with the action-bar, the said crank having another radial extension engaging the firingpin and moving it to the cocked position, and

a scar pivotally mounted in the breech-block.

and arranged to retain the firing-pin in the cooked position.

11. The combination with a trigger and a trigger-guard of a safety-slide located on-the forward part of the trigger-guard and projecting in front of the forward part of said guard and rearwardly into the trigger-guard, whereby it is necessary to take the finger from the trigger-guard in order to adjust the slide to lock the trigger.

12. The combination with a receiver, of a breech-block, a spring-actuated tiring-pin, a crank mounted in the breech'lhlock and provided with two radial extensions, an actionbar, the wall of the receiver being provided with a groove into which the action-bar travels, one of the radial extensions of the crank projecting into said groove to engagement with the action-bar, while the other radial extension engages the firing-pin and moves it rearwardly in the breech-block as the action-bar is given a corresponding movement, and a scar pivotally mounted in the breechblock for locking the firing-pin in the cocked position.

18. The combination with a receiver of a breech-block located therein, a spring-actuatcd firing-pin, acrank pivotally mounted on the breech-block and having two radial extensions, one of which engages the firing-pin to move it rearwardly in the breech-block as the crank is actuated, the wall of the receiver being provided with a longitudinal recess or channel into which the other radial extension of the crank projects, and an action-bar moving in said channel to engagement with the last named radial extension of the crank, whereby the latter is actuated for the purpose set forth.

14. The combination with a receiver and a breech-block, of an extractor device pivotally connected with the forward part of the breechblock and engaging the shell in the cartridgechamber, an action-bar longitudinally movable in the groove formed in the wall of the receiver, the action-bar being provided with a groove, a lug on the extractor entering said groove, the action-bar being providedwith a recess to allow the lug of the extractor to move downward and forward when the action-bar has reached a predetermined position, and a spring located in the rear of the extractordevice which extractor has a limited movement in a direction lengthwise of the breech-block.

15. The combination with a receiver of a longitudinally-movable breech-block, an extractor-hook pivotally mounted in an elongated opening of the breech-block, a spring engaging the pivot from the rear, the extractor having a forwardly-projecting arm movable in a triangular opening formed in the breechblock, the forward extremity of the arm having a part projecting toward the center of the receiver in which is formed a recess adapted to receive the rim of a cartridge-shell, and a log extending in the opposite direction, an action-bar movable in a groove formed in the wall of the receiver, the said bar being provided with a groove into which the lug of theextractor projects, the wall of the groove be low the lug'having a recess to allow the extractor to move downwardly to bring its recess below the rim of the shell, the action-bar having a limited movement independently of the extractor, whereby the recessed part of the extractor is forced upwardly to operative engagement with the rim of the shell.

16. The combination with a barrel, and a magazine located below the barrel, of a receiver having a bottom opening, a breechblock longitudinally movable in the receiver, an extractor device mounted on the forward extremity of the breech-block, and adapted to extract the shell from the cartridgechamber as the breech-block is moved rear-wardly, an ejector device consisting of a plurality of parts mounted in the receiver, and actuated by the breecl1-block,one part being slidably mounted in a groove formed in the wall of the receiver, said part being arranged to act on the rear extremity of the shell andeject the latter down-- wardly through the bottom opening in the re; ceiver and an arm pivoted in the receiver and acting on the said slidable part to cause the latter to perform the aforesaid function, substantially as described.

17. The combination with a receiver of a breech-block movable longitudinally therein, and a slide mounted in the upper part of he receiver and having a downward projection, an arm pivoted in the receiver and engaging the slide, a spring normally holding the arm and slide in the rearward position, the arm having a projection engaged by the breechblock duringits rearward movement, whereby the arm is actuated to give the slide a forward thrust to eject the shell.

18. The combination of a receiver and a breech-block longitudinally movable therein, of a firing-pin carried by the breech-block, a spring-held sear pivotally mounted in the breech-block, a crank pivotally mounted in the breech-block and provided with two radial extensions, an action-bar movable in a longitudinal channel formed iuthe wall of the receiver, one of the radial extensions of the ment with the action-bar, the other radial extension engaging the firing-pin, whereby it is held in the cooked position, a trigger engaging the sear and having a forwardly-extending lower arm occupying a recess in the lower part of the receiver,and a safety-slide mounted in the trigger-guard and engaging the said trigger-arm to lock the trigger against movement when the slide is in one position, while when the slide is in the other position the trigger is allowed its normal movement.

19. The combination with a receiver, and a breech-block located therein, of aspring-held firing-pin mounted in the breech-block, a crank pivotally mounted in the breech-block and having two radial extensions, an actionbar moving in a longitudinal channel formed in the wall of the receiver, one of the radial extensions of the crank projecting into said channel to engagement with the action-bar, while the other radial extension engages the firing-pin to cook the latter as the action-bar is forced rearwardly, a sear for holding the firing-pin in its cocked position, a trigger on gaging the sear to release the firing-pin, said IIO ' channel formed in the wall of the receiver,

one of the radial extensionsof the crank projecting into said channel to engagement with the action-bar whereby as the latter is thrust rearwardly the crank is operated, substantially as described.

21. The combination with a receiver, a breech-block, a firing-pin movably mounted in the latter, and an action-bar, of a crank' pivoted in the breech-block and connected with the action-bar whereby it is normally operated by the movement of the bar to actuate the breech-block and cock the firing pin, and a spring-held lever fulcrumed on the breech-block and engaging the crank to lock the latter against revolving rearwardly, said lever lying in the path of the firing-pin during its forward movement, whereby the crank is released from the lever as soon as the gun is fired.

22. The combination with a receiver, a breech-block, a firing-pin and an action-bar, of a crank mounted in the breech-block and actuated by the action-bar to cook the firingpin, and a spring-held lever fulcrumed on the breech-block and engaging the crank to lock it and the action-bar against rearward receiver, of a breech-block moving in the removement when the firing-pinis cocked, the said lever having a springin the path of the firing-pin, which spring is placed under tension by the forward movement of the firingpin, whereby as the gun is fired the lever is actuated to release the crank, by the combinod action of the spring and the recoil of the gun.

2 3. The combination with a receiver, of a breech-block longitudinally movable therein, a carrier pivoted in the receiver and whose axis is parallel or nearly so with the axis of the gun-barrel, the carrier being actuated by the breech blo'ck during its longitudinal movement, said carrier having a wing normally occupying a recess in the wall of the receiver, the carrier having a part projectinginto and operated by the walls of a groove formed in the breech-block.

24. In a magazine-gun, the combination with a magazine, a cartridge-chamber and a ceiver, and a carrier device having a longitudinal rotating spindle journaled in the wall of the receiver, said device being actuated by the breech-block to raise the cartridge into line with the cartridge-chamber.

25. Thecombination with a receiver and a breech-blockarranged to reciprocate therein,

of a carrier device pivotally mounted in the wall of the receiver and normally out of the path of the breech-block, the carrier having a longitudinal rotating spindle and a radial wing, and a suitable connection between the spindle and the breech-block whereby the said wing is revolved downwardly to receive the cartridge during the rearward movement of the breech-block, and upwardly during its forward movement, whereby the cartridge is raised to a position to enter its chamber.

26. In a magazine-gun, the combination with a receiver, a magazine-tube, a cartridgechamber, a breech-block reciprocating in the receiver; and an action-bar for operating the breech-block, of a carrier device provided with a longitudinal spindle and a carrierwing, the spindle being journaled in the wall of the receiver and provided with a spring at its forward extremity normally engaging the rearmost cartridge in the magazine-tube and holding it in place, the rear end of the carrier-spindle being provided with a part acted on by the breech-block during its rearward movement, whereby the spindle is actuated and the wing of the carrier thrown down to receive a cartridge from the magazine, the spring having been turned to release the cartridge by the movement of the spindle, while the breech-block during its forward movement acts on the part at the rear extremity of the carrier-spindle to reverse the action of the latter and raise the cartridge to position in the rear of the cartridge-chamber, and to a position in front of the forwardly-moving breech-block.

27. The combination with a receiver, and a breech-block, of a carrier having a spindle journaled in the wall of the receiver and a wing projecting from the spindle, the forward portion of the spindle having a device normally engaging the rearmost cartridge of the magazine-tube, the rear portion of the spindle being provided with a part acted on by the breeclrblock to operate the carrier.

28. The combination with a receiver, and a breecl1-block, of a carrier device having a longitudinal spindle provided with two projections occupying different planes, one being located forward of the other, one projection normally occupyinga position immediately in the rear of the rearmost cartridge in the magazine, while the other projection occupies a position forward of the rim of said cartridge, whereby when the spindle is turned to throw the carrier to the operative position, the cartridge engaged by the one projection is released, while the other projection is brought into the path of the next cartridge in the rear.

29. The combination with a receiver and a breech-block provided with a groove in one side thereof, of a carrier having a longitudinal spindle journaled in the wall of the receiver adjacent the groove of the breech-block and having a spiral projection entering the groove of the breech-block, whereby the spindle 'is turned in one direction during the rearward movement of the breech-block and in the opposite direction during its forward movement.

30. In a magazine-gun, the combination with areceiver having an opening in its bottom wall, a cartridge-chamber, and a magazine communicating with the receiver-chamber, of a carrier device having a longitudinal spindle journaled in the receiver-wall and provided with a wing adapted when operated to be revolved into the receiver chamber across its bottom opening and in the rear of the magazine, to support a cartridge issuing from the latter, and to be revolved upwardly whereby the cartridge is brought into line with the cartridge-chamber, and a breechblock located in the receiver-chamber and operating the carrier to produce the aforesaid results.

31. In a magazine-gun, the combination with a receiver and a barrel connected therewith, of a magazine-tube whose rear extremity is provided with two lugs, the barrel and receiver below the barrel having shoulders, the barrel-shoulder facing forwardly'and the receiver-shoulder facing rearwardly, the said shoulders being engaged by the lugs of the magazine-tube,- for connecting the rear extremity of the tube with the barrel.

32. The combination with a barrel and magazine-tube,of a spring-held device located in the forward end of the tube and a dependin g part connected with the barrel and codp crating with the said device to hold the tube in operative relation with the barrel, and a spring-held dog mounted on the barrel and supporting the tube after the spring-held device has been detached from the depending part of the barrel, the tube being allowed to move downwardly a short distance before it is stopped by the dog.

The combination with a barrel, a magaziue-tube, a spring therein, and a handle slidable thereon, of a spring-held device inserted I in the forward end of the tube, a projection on the barrel codperating with the said device to hold the parts in operative relation, a dog mounted on the barrel and supporting it after the plug and depending part are separated,-a shoulder on the handle, and a stop on the barrel which the shoulder normally on gages to limit the forward movement of the slide, substantially as described.

The combination with a receiver, a breech-block, a firing-pin movably mounted in the latter, and an action-bar, of a crank pivoted in the breech-block and connected with the action-bar, whereby it is operated by the movement of the bar to actuate the breechblock and cook the firing-pin, and a springheld lever f ulcrumed on the breech-block and engaging the crank and locking the latter I against revolving r'earwardly, the adjacent wall of the receiver being provided with a re cess or groove into'which the lever projects when in the locking position, thus forming an additional safeguard against the downward movement of the breech-block during the recoil of the gun.

35. The combination with a trigger and trigger-guard, of a safety-slide mounted on the forward extremity of the trigger-guard, projecting forwardly therefrom and adapted to lock the trigger against movement when the slide is in the rearward position, so that it is necessary to take the finger out of the trigger-guard in order to move the slide to the safe position.

36. The combination with a receiver, a barrel and a magazine-tube, of a ring mounted on the rear extremity of the barrel and having separated depending projections embracing the magazine-tube on opposite sides when the parts are assembled.

37. The combination with a barrel, a magazine-tube and a handle slidable on the latter, of a shoulder on the handle, said shoulder be ing exposed at the top of the handle, and a stop formed on the lower side of the barrel, whereby when the shoulder on the handle is located forward of the stop on the barrel when the barrel and the magazine-tube are connected. after being detached from the receiver, the handle is locked against rearward movement.

38. The combination with a receiver, a barrel and a magazine-tube, of a ring mounted on the rear extremity of the barrel and having separated depending projections adapted to embrace the magazine-tube on opposite sides when the parts are assembled, the magazine-tube being provided on its upper side with the'segment of a collar, and. a ring having a recess in its lower side which the segment-collar of the magazine-tube occupies, the extremities of the segment-collar, engagin g shoulders formed at the extremities of the recess in the ring.

39. The combination with a barrel having a stop or shoulder on its lower side, a magazine-tube and a handle slidable thereon, of a ring applied to the forward extremity of the handle and having a buffer-spring formed on its forward edge, said spring being adapted to engage the stop of the barrel as the handle is moved forwardly for the purpose set forth.

40. The combination with a receiver, of a breech-block located therein and longitudinally movable, a groove being formed in its upper face and having an inclined face atits forward extremity, and ejector mechanism comprising a slide mounted in the receiver, and a spring-held pivoted arm engaging said slide and normally holding it in the rearward position, .the said arm having a downward projection adapted to engage the groove of the breech-block and actuate the pivoted arm to drive the slide forwardly against the shell, when the inclined front face of the groove in the breech-block engages the said projection.

In testimony whereof I my signature in presence of two witnesses.

JOHN D. PEDERSON.

Witnesses:

A. .1. OBRIEN, Dona O. SI-IIOK.