US3611608A

US3611608A - Gun having two shell latches with a plurality of cam followers

Info

Publication number: US3611608A
Application number: US788991A
Authority: US
Inventors: Theophilus K Seiberling
Original assignee: Individual
Current assignee: Individual
Priority date: 1968-12-24
Filing date: 1968-12-24
Publication date: 1971-10-12
Anticipated expiration: 1988-10-12

Abstract

THE GUN HAS TWO SHELL LATCHES IN THE RECEIVER CAVITY, ONE OF WHICH PREVENTS MORE THAN ONE SHELL FROM FEEDING INTO THE CAVITY DURING ONE ACTION CYCLE. THE OTHER IS HELD BY AN ACTION BAR DURING A PART OF THE CYCLE TO PREVENT A SHELL FROM FEEDING FROM THE MAGAZINE INTO THE CAVITY. THE GUN INCLUDES A CARRIER DOG FOLLOWER SPRING THAT IS WEAKER THAN CONVENTIONAL SPRINGS USED FOR THIS PURPOSE. BOTH IMPROVEMENTS CONTRIBUTE TO EASIER, SMOOTHER ACTION.

Description

Oct. 12, 1971 T. K. SEIBERLING GUN HAVING TWO SHELL LATCHES WITH A PLURALITY OF CAM FOLLOWERS 6 Sheets-Sheet 1 Filed Dec. 24, 1968 INVENI'OR THEOPHILUS K. SEIBERLING Oct. 12, 1971 T. K. SEIBERLING GUN HAVING TWO SHELL LATCHES WITH A PLURALI' IY OF CAM FOLLOWERS Filed Dec.

6 Sheets-Sheet 2 INVENTOR THEOPHILUS K. SEIBERLING 6 Sheets-Sheet 5 V II r I u 5 il 1' I I INVENTOR THEOPHILUS K. SEIBERLING (N d m am Oct. 12, 1971 T. K. SEIBERLING GUN HAVING TWO SHELL LATCHES WITH A PLURALITY OF CAM FOLLOWERS Filed Dec. 24, 1968 GUN HAVING TWO SHELL LATCHES WITH A PLliRALITY'OF CAM FOLLOWERS Filed Dec. 24, 1968 Oct. 12, 1971 'r. K. SEIBERLING 6 Sheets-Sheet 4.

m ON NV mm INVENTOR THEOPHILUS K. SEIBERLING Oct. 12, 1971 "r. K. SEIBERLING 5 5 0 GUN HAVING TWO SHELL LATCHES WITH A PLURALITY OF cm FOLLOWERS Filed Dec. 24. 1968 6 Sheets-Sheet 5 a4 .15 g a5 THEOPZILUZKIEEIBERLING BY 2 I,

ATTORNEY Oct. 12, 1971 T. K. SEIBERLING GUN HAVING TWO SHELL LATCHES WITH A PLURALITY OF CAM FOLLOWERS Filed Dec. 24, 1968 FIG. 20

6 Sheets-Sheet 6 INVENTOR. THEOPHILUS K. SEIBERLING ATTORNEY United States Patent 3,611,608 GUN HAVING TWO SHELL LATCHES WITH A PLURALITY 0F CAM FOLLOWERS Theophilus K. Seiberling, 39 Maplewood Ave., Akron, Ohio 44313 Continuation-impart of abandoned application Ser. No. 736,101, June 11, 1968. This application Dec. 24, 1968, Ser. No. 788,991

Int. Cl. F41c 11/00, /00

US. Cl. 42-17 R 27 Claims ABSTRACT OF THE DISCLOSURE This application is a continuation-in-part of my application Ser. No. 736,101 filed June 11, 1968 (now abandoned.)

This invention relates to a repeating-action gun and, more particularly, a pump-action gun provided with a fore-end assembly or the like for pumping a shell from the magazine of the gun into the receiver cavity from which it is lifted by a carrier to the chamber. It includes an improved carrier-dog follower spring delivering a lower spring load than springs conventionally used for such a purpose. The improvements over the prior-art mechanisms ease the operation of the gun and smooth it out, particularly the backward movement of the fore-end assembly.

The invention also includes an improved ejector.

The receiver cavity of the gun is provided with two shell latches, one of which at one stage of each functioning cycle is held out of the path of a shell being ejected from the magazine and at another stage prevents the shell from being ejected from the magazine. The other latch prevents more than one shell being ejected from the magazine into the receiver cavity in each functioning cycle. The design of the shell latches and action bars differs from the conventional design in such a manner that resistance to movement of the action bars created by pressure, due to the spring tension, of the shell latches against the action bars is greatly reduced and in the case of one shell latch there is little or no spring tension from the shell latch against its action bar. The gun action is therefore easier to operate.

The carrier, which lifts the shell from the bottom of the receiver cavity to the chamber entrance from which position it is pushed into the chamber by the bolt, is provided with a carrier dog which cooperates with a carrier-dog follower pressed by a spring with a compression rate of only two or three pounds to the inch, up to about six or seven pounds. Its action is therefore much smoother than the action usually used in the present-gun (Remington, Winchester, etc.) in which a spring with a compression rate of about ten or eleven pounds is used.

The new ejector provides improved operation in guns such as Winchester guns.

The invention is further described in connection with the accompanying drawings, in which-- FIG. 1 is an elevation of the receiver of a Remington Model 870 shotgun with parts of its interior shown in section;

FIG. 2 is an enlarged section on the line 22 of FIG. 1 with the trigger plate assembly removed;

FIGS. 3 and 4 are sections on the lines 33 and 4-4 through the receiver shown in FIG. 2;

Patented Oct. 12, 1971 FIG. 4A is a detail of the action bar shown in FIG. 4;

FIG. 5 is a bottom view of the receiver of the above gun with the trigger plate assembly removed and with parts shown in section;

FIGS. 6, 6A (a detail), 7 and 8 are bottom views of a part of the receiver of the above gun showing the rear end of the fore-end assembly in different positions, with the trigger plate removed; in FIG. 6 the fore-end assembly is in its foremost position; in FIG. 6A a detail of the foreend assembly in a position intermediate those shown in FIGS. 6 and 7 is shown; in FIG. 7 it is in a middle position; and in FIG. 8 it is in its rearmost position;

FIG. 9 is a horizontal section on the line 99 of FIG. 3 and shows the back cam on the left action bar pressing against the back cam follower on the left shell latch to hold a shell in the magazine;

FIG. 10 is a view of the same but with the action bar in the rearmost position with its front cam pressing against the front cam follower on the left shell latch to release a shell from the magazine;

FIG. 11 is a section on the line 1111 of FIG. 3 and line 1111 of FIG. 9 and shows the left action bar and shell latch in the same position as in FIG. 9;

FIG. 2 is a section on the line 12-12 of FIG. 3 and line 1212 of FIG. 10 and shows the action bar and shell latch in the same position as in FIG. 10;

FIG. 13 is a sectional view showing the carrier dog, the carrier-dog follower and the carrier-dog follower spring;

FIG. 14 is a view of the underside of the improved slide of the above gun;

FIG. 15 is a section on the line 15-15' of FIG. 14;

FIG. 16 is an elevation of the receiver of a Winchester Model 1200 shotgun, partly broken away to show its interior and, more particularly, the ejector;

FIG. 17 is a top view of the ejector;

FIG. 18 is a side view of the ejector;

FIG. 19 is an enlarged sectional view of the ejector on the line 19-19 of FIG. 17; and

FIG. 20 is a side sectional view of the receiver and trigger assembly of the gun showing the action barlock; and

FIG. 21 is a perspective view of the action bar lock.

There is nothing new in the structure of the stock 1, the magazine 2, the chamber 3, the trigger 5 and the firing mechanism connected therewith for the bolt 7, as shown in FIG. 1. The receiver 10 is provided with an opening in the portion 12 of its base covered by the carrier 13. The magazine 2 is equipped in the usual manner with a spring 15 and a magazine follower 16 which covers the end of the spring.

There are two

shell latches

20 and 21 embedded in opposite sides of the receiver cavity (FIG. 2), namely, a left shell latch 20 which regulates the feeding of shells into the receiver cavity at the proper part of the action cycle and a right shell latch 21 which prevents more than one shell feeding into the receiver cavity during one cycle. Also, slidably embedded in opposite walls of the receiver cavity are the left action bar 23 and the right action bar 24 (FIG. 2). The action bars are moved backward and forward by the pumping action of the foreend assembly 26 as illustrated in FIGS. 6, 7 and 8.

The right shell latch 21 is recessed in a groove 27 (FIG. 2) in the right wall of the receiver cavity and is held in the groove by peening the edges of the groove, and is held in longitudinal position by the front trigger plate pin 34' (FIG. 4) which passes through hole 34 (FIG. 1). The inner end of the shell latch 21 is bent to form the shell stop 30 (FIGS. 2, 58) and the cam follower 31 (FIGS. 48) extends beyond this. The cam follower 31 (FIG. 4) limits the inward movement of the shell latch. Cam follower 31 has a beveled contact face on its front end 28 (FIG. 4) which meets beveled face 22 of cam 24' on action bar 24 during the action bars backward movement and cam follower 31 also has a beveled contact face on its rear end 29 which meets the opposite beveled face 22 of cam 24' on action bar 24 during the action bars forward movement. This shell latch is a relatively narrow, bowed element. It is placed in the groove 27 with the rear end pressed against the wall of the receiver cavity and the front end (still in the groove) radiused outwardly from the wall to put spring load on the shell stop 30 to hold the shell latch in the non-feed position (FIGS. 2 and 6) and to prevent more than one shell from feeding from the magazine into the receiver cavity during one action cycle.

Also, shell latch 2.1 and action bar 24 may be designed so that shell latch 21 exerts little or no spring load against action bar 24 and shell latch 21 may be moved to the feed and non-feed positions by a cam action between the two and locked and held in each of said positions by action bar 24 during the proper portion of the action cycle. The means and design described in connection with shell latch 20 and action bar 23 may be used, such as shown in FIGS. 11 and 12.

The left shell latch 20 is recessed in groove 32 (FIG. 2) in the left wall of the receiver cavity and held in longitudinal position by the front trigger place pin 34 (FIG. 3) which passes through hole 34 (FIG. 13) and is held horizontally in the receiver groove 32 by the trigger plate assembly 35 (FIG. 1). This left shell latch is a fiat, narrow element and, being approximately straight, creates little or no spring load against the action bar 23. There is an offset 36 in shell latch 20 (FIGS. 9 and near cam follower 37, to form a recess 36' for the action bar lock 40 (FIG. 20) on the trigger plate assembly and a portion near the front end of the shell latch is bent inwardly to form the shell stop 38 (FIGS. 9, 10 and 12). By pushing the release button 42' of the action bar lock 40 (see FIGS. 1 and 20) the lock 41 is lowered, permitting the action bar 23 (FIGS. 2 and 20) to move backward. The tip 39 (FIGS. 3, 9 and 10) limits the inward movement of the shell latch (FIG. 3). Cam 42 on action bar 23 contacts cam follower 37 (FIGS. 9 and 11) and moves the shell latch away from the wall of the receiver cavity into the non-feed position (FIG. 9), and locks or holds it there during the proper part of the action cycle.

Cam follower 45 at the front end of the left shell latch 20 is actuated by a cam 23' on action bar 23 (FIGS. 10 and 12) to move the shell latch 20 into the feed position at the proper part of the action cycle and lock it in that position (FIGS. 10 and 12).

FIGS. 6 to 8 show shells A and B. Shell A is fed from the magazine 2 into the receiver cavity (FIG. 2).

DETAILED DESCRIPTION OF SHELL LATCH ACTION When the action bars are brought into the forward position by manual operation of the fore-end assembly 26 (FIG. 6), the breech block is closed and locked, shell latch 21 is held in the non-feed position by spring tension (FIGS. 2 and 6) and shell latch 20 is held in the non-feed position by cam 42 on action bar 23 and the cam follower 37 FIGS. 9 and 11). Shell A is held on shell stop 30 on shell latch 21 as shown in FIG. 6, and as the action bars are moved back, the cam 24' (FIGS. 4 and 4A) on action bar 24 engages cam follower 31 (FIG. 4) and moves shell latch 21 to the feed position, permitting shell A to seat against stop 38 on shell latch 20 (FIG. 6A), and as the action bars progress backward said cam on action bar 24 is disengaged from cam follower 31, permitting the spring tension in shell latch 21 to move the shell latch to the non-feed position as shown (FIG. 7). As the action bars progress backward the cam 42 (FIGS. 9 and 11) on action bar 23 disengages cam follower 37 and shell latch 20 is held in the non-feed position by the magazine spring 15 exerting pressure against shell B, the head of which in turn exerts pressure against shell A the head of which exerts pressure against shell stop 38 of shell latch 20. Shell stop 38 is off center from the anchor point 47 (FIG. 9) of shell latch 20. Therefore, the pressure of magazine spring 15 exerts a force which holds the shell latch in the non-feed position and as the action bars progress backward and near the end of the backward movement cam 23 on action bar 23 engages cam follower 45 (FIG. 10) and moves shell latch 20 to the feed position and locks or holds there. This release shell A (FIG. 8) which is moved by magazine spring pressure, exerted through shell B, into the receiver cavity. The shell B is simultaneously moved to a position against stop 30 on shell latch 21 (FIG. 8).

After completing the backward stroke (in which cam 24' has been moved past cam follower 31 toward stock 1 (FIG. 4) the action bars move forward. First, cam 23' (FIG. 12) on the action bar 23 disengages cam follower 45 and at this point in the action cycle (intermediate between the positions shown in FIGS. 9 and 10) shell latch 20 is static, exerting little or no spring tension. As the action bars progress forward cam 42 on action bar 23 (FIGS. 9 and 11) engages cam follower 37 (FIG. 11) moving shell latch 20 to the non-feed position and locking or holding it in that position (FIGS. 6 and 9). After cam 42 (FIG. 9) on action bar 23 (FIG. 11) has engaged cam follower 37 on shell latch 20 (FIG. 11), the cam face 22 of cam 24 (FIG. 4) on action bar 24 (FIG. 4) engages the rear face 29 of the cam follower 31 (FIG. 4) on shell latch 21 by advancing the fore-end assembly 26 (of which the action bars are a part) not more than one inch. Thus, as the action bars progress forward, the cam 24' (FIG. 4) on action bar 24 presses cam follower 31 and moving shell latch 21 to the feed position permitting shell A to advance and seat on stop 38 on shell latch 20 (FIG. 6A). Just before the action bars complete their forward movement, cam 24' on action bar 24 (FIG. 4) disengages cam follower 31, permitting the spring tension in shell latch 21 to move it to the non-feed position (FIG. 7) and removing spring tension from against action bar 24. Thus the action bars progress to their forward position and lock the action.

By proper location of cams on the action bars of other guns, including a Winchester Model 1200 shotgun, the design can be such that after a cam on one action bar has contacted a cam follower on its shell latch a cam on the other action bar will contact a cam follower on its shell latch without moving the action bar more than one inch, thus making the action work more easily and smoothly.

NEW CARRIER DOG FOLLOWER SPRING Referring now to FIGS. 1 and 13, there is nothing novel about the bolt construction 7. As the fore-end assembly is pumped rearwardly, the slide 49 (FIG. 2) depresses the carrier dog 50 (FIGS. 1 and 13) to the rear, and the carrier dog follower 51 is recessed against the action of a spring 52 contained within it. Then as the fore-end assembly is returned to the forward position the slide engages the tooth 69 of the carrier dog which is then higher than the surface between the notch 54 of the carrier dog and its outward tip. Thus the slide brings the carrier dog back with it and as it moves to its forward position the pivot 56 is depressed together with the rear end of the carrier to which it is pivoted at 56. The carrier 13 is pivoted to the trigger plate by hollow pivot 58 in hole 34. This causes the forward end of the carrier to be raised, and if a shell has been injected onto it from the magazine this lifts the shell to the loading position. This construction is usual.

The rear side of the carrier dog is made with a notch 60 against which the carrier dog follower seats to hold the carrier in its down position. This is a usual construction.As the carrier dog is depressed by the backward movement of the slide 49, the carrier dog follower 51 is depressed and compresses spring 52. As the slide is moved forward the action is reversed and the spring presses carrier dog follower 51 against the surface of the carrier dog as the carrier dog is returned to its original position. There is nothing novel about this general action, but by properly designing the cam surface 61 (FIG. 13) over which the carrier dog travels, a spring delivering less spring load than conventionally used, namely, a spring load of as little as approximately one pound or perhaps as much as approximately 3.6 pounds is all that is required and as a result the action is much smoother and easier. The spring load delivered by the conventional carrier dog follower spring of Remington Model 870 and Winchester Model 1200 shotguns is approximately 5.2 pounds. The spring load delivered in a Winchester Model 120 shotgun equipped with the spring of this invention may be as little as 1 pound or as much as 3.6 pounds.

The action ofa standard shotgun of a well-known make is so stiff that if, after the gun is cocked and the fore-end assembly is brought forward locking the breech bolt, the butt of the gun is held stationary on a table with the muzzle pointing at the ceiling and the action bar lock is released, the breech bolt will move only slightly. However, the gun with the applicants improved action works so smoothly and easily that if the gun is given the same test the breech bolt will fall the full length of its backward action and strike the back of the receiver.

In FIG. 13 the line Y is parallel to the movement of the carrier dog follower. The line X indicates the direction of the cam surface and it is to the rear of the line Y. The smaller the angle between the lines X and Y in conjunction with the proper angle of approach by the carrier dog follower 51, the smaller the spring load required.

IMPROVED SLIDE The slide 49 (FIGS. 2, 5 and 6) is notched at both sides. These notches fit over lugs on the action bars. As the slide is moved back it depresses the carrier dog against the spring 52. Then as the slide is moved forward the tooth 69 (FIG. 13) on the carrier dog engages in the groove 70 (FIG. 5) and the rear end of the carrier 13 is depressed, this raises the forward end of the carrier and the shell, which is then on the carrier, is lifted toward the chamber 3. If the spring load of the spring 52 is reduced, as described herein, the spring load may not be suificient to properly raise the carrier to the opening of the chamber 3, when the action is operated rapidly, and the gun ams.

Although a groove is shown in FIGS. 5 and 6-, a hole acts as another means to catch the tooth 69. FIG. 14 shows the improved slide 49' for use in a gun such as the Remington Model 870 shotgun. In this slide, an opening 72 is provided in addition to the groove 70. Another groove might be used in its stead, or two holes might be used instead of the groove 70 and the hole 72. Any suitable means for progressively catching the tooth 69 to raise the carrier progressively to the level of the chamber 3 may be utilized. By such progressive means the action is smooth and prevents jamming.

IMPROVED EJECTOR FIGS. 16 through 19 illustrates an improved ejector 80 and its location in a gun such as a Winchester Model 1200 shotgun. In FIG. 16 the ejector port, the righthand end of which is shown at 8-1, is not otherwise clearly defined because the wall is broken away to show the interior of the cavity.

The improved ejector shown in FIGS. 16 through 19 is of the same outline as the conventional ejector now in use. It comprises a rear portion which is provided with a hole 82 which is engaged by a pin in the wall of the receiver which pin holds the rear in a longitudinal and vertical position. The forward end is slotted at 83 to provide two

rails

84 and 85 on which the head of the shell rides as it is being extracted from the chamber.

At the rear end of the slot 83 is the shell stop 87 contacted by the head of the shell. The front and rear portions of the ejector are of usual spring construction. By comparing the side view of the improved ejector shown in FIG. 18 with the conventional ejector, it will be seen that in the improved ejector the rails are relatively flat from the shell stop forward.

In the conventional ejector the forward portion from the depressions 88 to the rear of the shell stop 87 is bowed. As the bolt moves rearward it depresses the bowed portion of the conventional ejector and as the shell comes out of the chamber it depresses it even more; and eventually the shell is stopped at the shell stop 87. This is objectionable because as the breech bolt is being moved rearward the portion between the stop and the front of the spring places an unnecessary spring load against the bolt and/or the shell and, therefore, it takes more effort to operate the gun than in a gun equipped with the improved ejector which places little or no spring load on the bolt and/or shell throughout most of the bolts travel from the closed position until it hits the stop 87.

If a straight line is placed on FIG. 18, touching the bottom of the depression 88 and the bottom of the rear end of the ejector it is seen that at the shell stop the ejector is slightly bowed. Between the depression 88 and the bottom of the ejector at the shell stop there is substantially no how.

The rail 84 is offset from the rail 85 to a substantial degree, as shown in both FIGS. 18 and 19. As the shell which is withdrawn from the chamber by the extracter on the bolt 91, contacts the shell stop 87, the bolt has moved back of the shell stop and the ejector is sprung outwardly toward the ejector port because it is slightly bowed.

As the bow between depressions 88 and rear end of the ejector is reduced, the spring load delivered by the rails against the bolt is reduced, and if the bow is sufficiently reduced, when a shell is being withdrawn from the chamber the front of the shell has a tendency to drop down below the ejection port, preventing it from being ejected and causing jamming. If such a reduction of the bow is made it has been found that this difficulty can be overcome by designing the rails of the ejector so that the rail 84 is in a plane closer to the wall opposite the ejection port than rail 85. The head of the shell rides on the

rails

84 and 85, and is guided by slot 83. By having the rails in different planes, a mechanical twist is given to the shell while being extracted. This keeps the front of the shell opposite the ejection port and prevents it from dropping below the ejection port, preparing it for ejection when the head of the shell approaches or hits the shell stop.

The invention is covered in the claims which follow.

I claim:

1. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by cam means on action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, the second of which shell latches is provided with two cam followers positioned to be acted upon by said cam means, one of which cam followers holds the shell latch in position to prevent a shell from feeding from the magazine into the receiver cavity, and the other of which cam followers when acted upon by said cam means moves the shell latch and holds or locks it in position for feeding a shell from magazine into the receiver cavity.

2. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, two shell latches actuated, respectively, by action bars, and at least one of said shell latches is provided with two cam followers positioned to be acted upon by cam means on its action bar to cooperate in the feeding of a shell from the magazine into the receiver cavity.

3. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, the second shell latch is movable between feed and non-feed positions during different stages of a functioning cycle in which there is a shell in the magazine, the shell latch after being moved to a non-feed position being locked or held in said position by action of the magazine spring when the shell latch is not otherwise held in that position.

4. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches one of which shell latches prevents more than one shell from feeding from the magazine into the cavity during one action cycle, said shell latch being equipped with a cam follower which is not in contact with its action bar when the action is closed, with the action bar contacting the cam follower during its backward movement and then being disengaged from the can follower for the remainder of its backward travel.

5. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by action bars, a shell latch with a cam follower which has two separate beveled contact faces one of which engages its respective action bar during the action bars backward movement and the other of which engages said action bar during the action bars forward movement.

6. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell lacthes actuated, respectively, by action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, and the second of which shell latches prevents a shell from feeding into the cavity during a part of the action cycle, with means moving at least one of said shell latches to the feed and to the non-feed position so that said latch exerts little or no spring load against its action bar.

7. A repeating-action gun of claim 6 in which at least one of said shell latches is moved by cam means on its action bar to the feed and to the non-feed position and is locked or held in said positions by said action bar.

8. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, and the second of which shell latches prevents a shell from feeding into the cavity during a part of the action cycle, with at least one of said shell latches being moved b its action bar to the feed and to the nonfeed positions.

9. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, and the second of which shell latches prevents a shell from feeding into the cavity during a part of the action cycle, with at least one of said shell latches being locked or held in the feed and non-feed positions by its action bar.

10. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, a carrier to move the shell in the cavity, a carrier dog and carrier-dog follower with a carrier-dog-follower spring as means for actuating the carrier dog, the carrier-dog-follower spring delivering a spring load of no more than 3.6 pounds.

11. A repeating-action gun with a receiver having a cavity therein, and in the cavity two action bars, two shell latches, a carrier to move a shell in the cavity, a carrier dog actuated by a carrier dog follower and a carrier-dog-follower spring which delivers a spring load of more than 3.6 pounds.

12. A repeating-action gun with a receiver having a cavity therein, a carrier to move a shell in the cavity, a carrier dog, a slide as a means for actuating the carrier dog, two action bars adapted to move said slide, and first means on the slide as it is moved forward to catch the carrier dog and move it, and second means on the slide to catch the carrier dog to act upon it after being moved by said first means.

13. A repeating-action gun with a receiver having a cavity therein, a chamber, a carrier to move a shell to position for movement into the chamber, a carrier dog, and a slide as a means for actuating the carrier dog, the slide having a plurality of means spaced a substantial distance from one another to engage the carrier dog progressively as the slide is moved forward.

14. A repeating-action gun with a receiver having a cavity therein, a chamber, a carrier to move a shell into position for movement into the chamber, a carrier dog operated by a spring, and more than one means other than said spring for progressively engaging the carrier dog as the carrier is moved to position a shell for said movement into the chamber.

15. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, two action bars and two shell latches actuated respectively by said action bars, and a cam on at least one action bar which has two contact faces for actuating its shell latch.

16. A repeating-action gun having therein a breech bolt, a chamber. extractor means for removing a shell from the chamber, and a one-piece ejector having a shell stop thereon to stop the rearward movement of a shell thereon, the ejector having two rails over which a shell travels when being extracted from the chamber, at least one of said rails when the chamber is empty being flat over the portion over which a shell travels when being extracted from the chamber.

17. A one-piece ejector for a gun having a receiver with a cavity therein, with a breech bolt in said cavity, and a chamber, the ejector comprising two rails connected to one another at each end with an elongated space between the rails over which rails the shell travels when being extracted from the chamber, and having a shell stop thereon to stop the rearward movement of a shell thereon which stop generally divides the portion over which a shell travels from the portion which is not contacted by a shell, the portion of the ejector over which the shell travels when being extracted from the chamber being flat when the chamber is empty.

18. A repeating-action gun with a receiver having a cavity therein, a chamber opening into the cavity, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by cams on action bars, one of which shell latches prevents more than one shell from feeding from the magazine into said cavity during one action cycle of the gun, and the second of which shell latches, during a part of said action cycle, is held or locked by its action bar in a position to prevent a shell from feeding from the magazine into the cavity, one of said cams on one action bar which cam has two contact faces for actuating its shell latch, one of the shell latches being actuated by its action bar by movement of the action bar less than one inch after the other shell latch has been actuated by its action bar, a carrier to move a shell in the cavity, a carrier dog, a slide adapted to be moved by the action bars, the slide being designed to press the carrier dog back, a carrier dog follower pressed against the carrier dog by a spring delivering a spring load of no more than 3.6 pounds, a notch on the carrier dog and two means on the slide to be progressively engaged by means on the carrier dog to move it forward, and a carrier raised by said forward movement of the slide to deliver a shell from the magazine to the chamber.

19. A repeating-action gun having a cavity therein and a carrier dog in the cavity, a breech bolt on a slide, two action bars positioned to actuate the slide which actuates the carrier dog, an action bar lock to lock the action bars whent he gun is fired, a carrier-dog follower and a carrierdog follower spring having a spring load of no more than 3.6 pounds so that when the gun is held stationary in a vertical position with the forward end up, with the breech bolt locked and with the action bar lock released, the bolt falls substantially the full length of its backward action.

20. A shell latch for a gun, said shell latch having thereon a cam follower which has oppositely facing camcontacting faces.

21. A repeating-action gun which has a receiver and a cavity in the receiver, with a shell latch in the cavity, the shell latch having a cam follower which has oppositely facing cam-contacting faces.

22. A shell latch for a gun, said shell latch having an opening therein for a trigger plate pin and having a plurality of cam followers thereon located in spaced relation to one another and at one side of said opening.

23. A repeating-action gun which has a receiver and a cavity in the receiver, with a shell latch in the cavity, said shell latch having a trigger plate pin passing therethrough and having a plurality of cam followers thereon located in spaced relation to one another and at one side of the trigger plate pin.

24. A slide for a gun, which gun has a carrier dog therein, the slide having a plurality of means thereon spaced -a substantial distance from one another to engage the carrier dog progressively as the slide moves forward.

25. An action bar for use in a gun which has a cavity and a magazine therein, and a shell latch, the action bar being adapted for controlling the feeding of shells from the magazine into the cavity, and having between its ends more than one cam for operative contact with the shell latch.

26. A repeating-action gun having a receiver, a cavity in the receiver, a magazine, a shell latch, and an action bar adapted for controlling the feeding of shells from the magazine into the cavity, said action bar being positioned for operative contact with said shell latch for controlling the feeding of shells from the magazine into the cavity, and having thereon more than one cam for operative contact with the shell latch.

27. A repeating-action gun with a receiver having a cavity therein, a magazine with a spring therein to press a shell from the magazine into the cavity, and two shell latches actuated, respectively, by cam means on action bars, at least one of said action bars having more than one cam and its shell latch having more than one cam follower.

References Cited UNITED STATES PATENTS 1,099,621 6/1914 Schildbach 42l7 2,719,375 10/1955 Crittendon et al. 42-l7 2,926,445 3/1960 Green et al. 42l7 3,431,669 3/ 1969 Morrow 4225 1,834,410 12/1931 Loomis 4221(.2) 2,645,873 7/1953 Crittendon et al. 4221(.4) 2,887,808 5/1959 Janson et al. 4217(.2) 3,156,993 11/1964 Into 42l7 3,165,849 1/1965 Into 42l7 3,172,222. 3/1965 Vartanian 4221 BENJAMIN A. BORCHELT, Primary Examiner C. T. JORDAN, Assistant Examiner U.S. Cl.X.R. 42--2l R, 25 R FEJ-IOSU Patent No.

Dated October 12, 1971 Inventor(s) Theophilus K. Seiberling It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

@olumn Gslumn column Column solumn column Column 9,

line 24,

line 62,

line 70,

line 45,

line 47,

line 11,

line 16,

change "whent he" to when the Signed and sealed this 21 st day of March 1972.

ELSEAL) Attest:

EDWARD M.FLETCHER, JR.

Ettesting Officer ROBERT GOTTSCHALK Commissioner of Patents