US1886704A - Firearm - Google Patents

Description

C. C. LOOMIS Nov. 8, 1932.

FIREARM Filed July 6, 1929 INVENTOR.

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Patented Nov. 8, 1932 UNITED STATES CRAWFORD C. -LOOMIS, 0F ILION, NEW YORK', ASSIG'NOR TO REMINGTON ARMS COMPANY,

INC., A CORPORATION OF DEYLVART FIREARIVI Application iled July 6, 1929. Serial No. 376,321.

' The present invention relates to air guns of the magazine type and more particularly pertains to improvements in the magazines of such guns.x In certain popular types of magazine air guns it is common to provide the magazine tube with a coil spring to urge a follower against a column of pellets for feeding themone at a timerinto the barrel, a` loading port being provided in the side of the magazine tube for the'int'roduction of pelletsinto the magazine. A difficulty sometimes encounteredarises from a tendency of the coil spring to buckle and bulge through the' loading port when the follower is moved to compresszthe spring. It is an object of the present invention to provide a magazine of simplified construction in which this diiiicultyis entirelyeliminated.

Another diliiculty common in former constructions lies in damage to the magazine tube resulting from rough handling. If the magazine follower be manually moved'in an empty magazine against the pressure of the spring and then released, as is sometimes done by Vcareless users,.damage is very likely to resultto the tube, which is usually of light sheet metal construction, when the movement is. abruptly arrestedby engagement of its finger piecewitha portion of the tube. The present invention aims to provide a construction not susceptible to damage Afrom such handling. A y

`A further object of the invention lies in theprovision of an improved follower which may be easily inserted in and removed from the magazine.,

.'Arfurther object ofthe present invention resides in the provision of a magazine and barrel unit with improved means for detachably securing the magazine to the unit.

These and further objects will be apparent from the following description, referencebeing had tothe drawing which forms apart of this specification. l

. In the drawingz.l y

Figure l is a-fragmentary view in side elevation, partly in section, of the forward portion of the false barrel structure of Aan air gun showing themanner ofmounting the improved barrel andvinagazine unit of the i present invention.

lfigure 2 is a longitudinalsection in elevation of the iinprovedbarrel and magazine unit showing in detail the parts of the maga.- zine in normal positions. Y

Figure 3 is a view in side elevation, partly in section, of the magazine ready for-assembly into the magazine and barrel unit.

Figure t is a fragmentary sideview, part ly in section, of the rear end of *the barrel and magazine unit with the last pellet in position for discharge from the barrel.

Figure 5 is a view in longitudinal section of a portion of the magazine tube showing the manner of detaching and removing the improved follower of the present invention.

In Figure 6 are shown enlarged detail views of the follower links.

Figure 7 is a transverse section taken at 7-7 of Figure looking to the rear and showing the rear end piece of the barrel and magazine unit, the magazine being4 removed.

.In my co-pending application, Serial No. 310,306, filed October t, 1928, l have disclosed a combined barrel and magazine unit,

which `unit may be readily inserted in and removed from the false barrel structure of an air gun and in which unit the magazine is in the form of a tube secured tothe unit but detachable therefrom for purposes of cleaning and repair.

According to the present invention, I provide a somewhat similar magazine and barrel unit likewise insertable in and removable from the false barrel of an air gun, but in which the magazine is detachably secured to the unit by means of novel and improved devices. Y

Referring to the drawing, the magazine and barrel unit designated generally by the numerallO comprises a true or shooting barrel 11 secured at its rear end to an end piece or plugl2 which is formed with a screw threaded portion 13. The barrel 11 may be secured to the endy plug'12 by any suitable means, but preferably is secured by such means as is disclosed in my 'Co-pending. application, Serial No. 310,306, before mentioned. At its forward end the barrel 11 is apertured abutment 17' into which the' threaded portion 13 of the plug 12 may be screwed for securing the unit 10 in place-in the gun. The abutment 17 may be securedl to the false barrel 16, butl preferably is secured to a reinforcing tube 18 which is positioned within the false barrel without being attached thereto, (see Figure 1). A depending lug 19-formed integral with the reinforcing tube 18 and projecting downwardly through the false barrel serves as an attaching meansto connect with a forearm housing or other auxiliary structure positioned beneath the barrel. Such a construction relieves the barrel and magazine of stresses when the gun is discharged, the force of impact of the piston against abutment 17 being absorbed by the tube 18, lug 19 and auxiliary structure to which the lug is attached. For a more complete disclosure of an air gun embodying this construction reference may be had to my co-pending applications, Serial No. 224,888, filed October 8, 1927, and Serial No. 310,306, filed October 4, 1928. Although tie shown embodiment of my inventiony is appliedto an air gun of this type, it is obvious that many of the novel devices are applicable generally to magazine air guns.

rl`he present invention contemplates an improved means for detacliablyl securing the magazine to the barrel and' magazine unit. lfnlfigure 3 the Vmagazine is shown detached and ready for mounting in the unit. Figures 1 and 2 show the magazine-in place in the unit. The magazine 15 embodies a loading port 2O near its rear end and is provided withl a longv narrow slot 21 for accommodating and guiding the finger piece 39'of -a'magazine follower, which will hereinafter be described. The slot 21 terminates at its forward end in a bayonet slot 22 for retaining finger piece 39 and the follower in this positionin the magazine to permit-loading ofthe magazine with pellets.

,fit its forward end the magazine tube 15 carries a rscrew plug 23 threaded-ly mounted on the end of the tube and provided with a cylindrical head or pilot 24 of reducedI diameter therebyV forming the shoulder 25, the function of which will presently be eX- plained. The end cap 14 is provided with a rearwardly projecting flange 26 forming a space 27 into whichv the forward end of the magazine tube is received at the upper side of the barrel 11. `An aperture 24' in the end cap 14 receives the head 24 of the screw plug dated within the aperture 24 of the cap. The

rear end of the tube is then seated in the cut away portion30 andthe tongue 28 positioned in the cut 29 of thee-nd plug, thereby setting the magazine tube loosely inplace. With the aid of a screwdriver v-orfothertool the head 24 of the screw plug"23may 'be reached from the front of cap 14 and rotatedtoY lback` :the plug 23 partially out of thetubeiandzbring the shoulder 25 to bear'ftightly against the end cap; By'this operationtherear'end' of the tube will belirmly -pressedintoitspseat 30 in the rear end plug and thusthe magazine will be rig-idly but detachably secured in its place-in the unit. Detachment of the `magazine may be effected :by simplyv reversingthis procedure.

Theinvention further contemplates an improved follower construction for resiliently urging pellets from the magazine.' into the barrel, along with an arrangement for obviating the possibility of buckling ofthe magazine spring through the loading port yand also of an arrangement forpreventingf'accidental removal of the' pellets through the loading port'. g

These objects are accomplishedv by the arrangement best illustrated inFigure 2. This figure shows-a section of the magazine tube with'a column .of shot therein in normal'position, the leading lone of said shot beingy 1ocated in the recess 40 in the rear end plug 12l immediately above the shot in firing position in the barrel. It' will be'seen that Athe vdiameter -of theloading. port 2O'is`v slightly greater than the diameter of a shot, to permit'easy loading, and that,- as clearlyshownin this figure, when thej shot column is pressed rearwardly by the magazine springvtfhe center of the loading port 20 is substantially..opposite the point of contact of two .adjacent sh5tso that if either shotis displaced outwardly it will be engaged by the tube wall adj acentto the load-ing port, instead of passing,outwardly therethrough. By thus locating and pro-A portioning the loading. port with respect to the shot column, accidental egress `of shot therethrough is effectively prevented; Moreover, when the magazine'tube is in placa-,as illustrated in Figure l, the loading port 2O is covered by the sleeve member 18, thus positively preventing outward displacement Iof the shot.

rlhe magazine spri-ng and springfollower' rui leev

a tapered cylinder in shape, and formedat its l forward end with 'a substantially spherical head 33. At its forward end `this link` is recessed .at 3a and provided with aV transverse pin for receiving a hook portionll"A of the 'rear-"follower link 35." The rear link 36 is seen to have also a rearwardly extending spring engaging portion 38 and a lat-erally projecting nger piece 39. rlhe link 36 being flat and thin, preferably a sheet metal stamping, is adapted to be inserted bodily through the slot 2l. ylhe finger piece 39 is adapted to extend laterally through the slot 2l in the magazine and is guided thereby in its fore and aft movement. The spherical head 33 of link 32 bears against the foremost pellet in the magazine and urges the column rearwardly, as indicated in Figure 2. At its rear end the barrel ll is provided with an opening 40 to permit passage of pellets from the magazine to the barrel, and the rear end plug 12 is cut away at 3l to form a curved channel for guiding the passage of pellets through this opening.

Referring to Figure 4, it will be seen that the hook and pin connect-ion of the follower links affords an articulated follower construction, whereby when the last pellet has left the magazine the spherical head 33 of the follower link 32 is permitted to enter partially into the channel 3l and retain Contact with the last pellet to positively urge the same into r of channel 3l limits the rearward movement of the follower before finger piece 39 can reach the rear end Lll of slot 2l of the magazine tube. Thus, if the follower be allowed to snap to the rear in an empty magazine, the link 32 by its engagement with the wall of channel 3l in plug l2 will take up the shock of impact and relieve the magazine tube of injurious stresses from such impact.

As before stated, the invention contemplates making the follower readily detachable fromthe magazine tube. This is effected by the novel construction of the follower links 32 and 36. above described. lt will be seen that the finger piece 39 by its engagement with the ends of slot 2l prevents removal of the follower from either end of the magazine tube. However, removal may be effected, as shown in Figure 5, by disengaging the rear end of spring Ll2 from the portion 38 of link 1 36 with the aid of any thin tool such as a knife itself therefrom. rlhe forward link 32 isV now free to be removed through an end openingo-f the magazine tube. Assembly may be effected by a simple reversal of the above procedure.

JHaving fully described my invention, what l claim is:

l. ln an air gun,` a barrel, a magazine tube adapted to contain a column of shot pellets, a spring and spring follower in said tube urging said shot pellets rearwardly, an opening in said tube for the transfer of pellets to said barrel, and a loading port located in the .wall of saidtube opposite the column of shot pellets but out of alignment with any one of Vsuch pellets. 1

2. In an air gun,a magazine tube having its wall apertured to provide a loading port'for the reception of pellets, a. follower in said tube adapted to resiliently urge a column of pellets past said loading port, said port being slightly greater in diameter than a pellet and being so located in said tube wall that its center normally lies opposite the Contact point of two adjacent pellets. r

3. In an air gun, la` barrel assembly unit comprising a shooting barrel and end pieces secured thereto-,a magazine tube adapted to lie parallel to said barrel andabut one yof said end pieces, a plug threadedly engaging the forward end of said tube and movable to abut the other end piece, thereby compressing said tube between said end pieces. l

' 4. In anair gun, a barrel assemblyunit comprising a shooting barrel 'and end pieces secured thereto, a magazine tube adapted to lie parallel to said barrel with one end seated inthe Vrear end piece, and a plug threadedly engaging the forward end of said tube and movable therein to abut the forward end piece.

` 5. In an air gun, a barrel assembly unit comprising a shooting barrel and end pieces securedthereto, .a magazine tube adapted t0 lie parallel to said barrel and abut the rear end piece, a plug threadedly engaging the forward end of said tube and movable therein to abut the forward end piece, means carried by said plug and extending through an aperture in said forwardend piece for manipulating said-plug.

- 6. ln an air gun, a barrel assembly unit comprising a shooting barrel and end pieces secured thereto, a magazine tube adapted to lie parallel to said barrel and abut the rear end piece, a plugthreadedly mounted in the forward end of said tube and having a shoul- 'der portionadapted to abut theV forward en d piece, a pilot carried by said plug, the

forward end piece being apertured to receive said pilot. Y

7. In an air gun, a barrel assembly unit comprising a shooting barrel and end pieces secured thereto, a magazine tube adapted to lie parallel to said barrel and abut the rear end piece, a plug threadedly mounted in the forward end of said tube and having a shoulder portion formed by a forwardly extend# ing cylindrical portion of reduced diameter, the forward end piece being apertured to accommodate said cylindrical portion and permit the shoulder portion to abut the-end piece.

8. In anair gun, a magazine tube, a spring followertherein comprising a link having a hook portion, and another link detachably engaged by said hook portion.

9. In an air gun, a magazine tube, a coil spring therein, a follower comprising a pellet-'contacting link provided atv one'end with a transverse pin and al spring-engaging link having a hook portion engaging said pin.

l0. In an air gun, a magazine tube formed with a narrow longitudinal slot, a spring follower comprising a thin flat link bodily insertable through said slot.

11. In an air gun, a magazine tube formed with a narrow longitudinal slot, a spring follower comprising a plurality of detachably connected links, one of said links being bodily removable through said slot.

12. In-an air gun, a magazine tube formed with a narrow longitudinal slot, a spring follower comprising a pellet-contacting link and a spring-engaging link havinga hook portion engaging said pellet-contacting link, said spring-engaging link being bodily removable through said slot.

13. Inan air gun, a magazine tube formed with a narrow longitudinal slot, a spring follower comprising a spring-engaging link having a hook portion and a laterally extending finger piece, said link being bodily removable through said slot, and a pellet-contacting link recessed at one end and provided with a transverse pin receiving said hook portion.

14. In an air gun, a magazine tube formed with a narrow longitudinal slot, a spring follower comprising a pellet-contacting link formed with a recess and having a transverse pin at one end thereof, a thin flat spring-engaging linkV having a laterally extending finger piece and a hook portion engageable with said pin and adapted to be swung bodily through said slot about said pin for disengagement therefrom.

said follower being so shaped as to be stopped' positively urge the same into the barre1,and

beingsoshapedas .to be stopped by Contact with said end piece before said fingerpiece reaches` the end of its-slot. l

CRAWFORD C. LOOMIS.

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