Sign up
Title:
Stock-and-barrel assembly for firearms
United States Patent 2205982
Abstract:
The present invention relates to improvements in firearms and more particularly to improvements in modes of interconnecting the barrelunit and the stock-unit of such firearms. One of the objects of the present invention is to provide an improved stock-and-barrel assembly for firearms whereby...


Inventors:
Klipsch, Paul W.
Application Number:
US27303939A
Publication Date:
06/25/1940
Filing Date:
05/11/1939
Assignee:
WESTERN CARTRIDGE CO
Primary Class:
International Classes:
F41A21/48; F41C23/00
View Patent Images:
Description:

The present invention relates to improvements in firearms and more particularly to improvements in modes of interconnecting the barrelunit and the stock-unit of such firearms.

One of the objects of the present invention is to provide an improved stock-and-barrel assembly for firearms whereby a superior degree of accuracy of performance is achieved.

A further object of the present invention is to provide a superior firearm construction wherein the stock-unit and the barrel-unit are so interconnected as to minimize the objectionable vibrations resulting from the discharge of the firearm.

Another object of the present invention is to provide superior means for interconnecting the barrel-units and the stock-units of firearms, which will provide for appropriate regulation to compensate for various types of ammunition employed.

A still further object of the present invention is to provide a superior firearm construction wherein the amplitude of vibration of the barrel of the firearm with respect to the stock may be held within predetermined bounds.

Still another object of the present invention is to provide a superior stock-and-barrel assembly for firearms wherein the permitted amplitude of vibration of the barrel may be regulated at the will of the user to thereby compensate for various types of ammunition.

With the above and other objects in view, as will appear to those skilled in the art from the present disclosure, this invention includes all features in the said disclosure which are novel over the prior art.

In the accompanying drawings, in which certain modes of carrying out the present invention are shown for illustrative purposes: Fig. 1 is a broken view mainly in side elevation and partly in vertical section of a portion of the barrel and the stock of a firearm embodying the present invention; Fig. 2 is a transverse sectional view taken on the line 2-2 of Fig. 1; 4 Fig. 3 is a broken view in vertical centrallongitudinal section taken on the line 3-3 of Fig. 2; Fig. 4 is a perspective view on an enlarged scale of the yoke, detached; 0 Fig. 5 is a similar view of the saddle, detached; Fig. 6 is a transverse sectional view generally corresponding to Fig. 2 but illustrating another embodiment of the present invention; Fig. 7 is a view partly in side elevation and partly in vertical central-longitudinal section of a firearm incorporating still another form of the present invention; Fig. 8 is a transverse sectional view taken on the line 8-8 of Fig. 7; Fig. 9 is a broken top or plan view of the stock of the construction illustrated in Figs. 7 and 8; Fig. 10 is a view -partly in side elevation and partly in vertical central-longitudinal section of still another embodiment of the present invention; and Fig. 11 is a perspective view of the vibrationdampener or barrel-seating spring of the structure of Fig. 10.

The particular embodiment of the present invention herein chosen for illustration in Figs. 1 to 5 inclusive of the accompanying drawings, comprises a barrel 28 which may be of usual form and which is provided with the customary bore 21. Mounted beneath the barrel 20 is a stock 22, only the forestock portion of which is shown and go which is formed in its upper surface with a longitudinal barrel-receiving groove 23 of substantially semicircular form in cross section, as will be seen by reference to Fig. 2.

Resting upon the surface of the barrel 20 is a semicircular saddle or pad 24 which may be lormed of steel and which has its cylindricallycontoured inner face 25 conformed to the adjacent portion of the outer surface of the barrel 20 so as to snugly fit the same and to distribute stresses applied to the said saddle in such manner as to avoid the distortion of the said barrel.

The outer face of the saddle or pad 24 is formed midway between its front and rear edges with a longitudinally - extending locating - groove 26 which is of semicircular form in cross section, as will be seen by reference to Fig. 3.

The locating-groove 26 in the saddle or pad 24 receives the central reach 27 of an inverted U-shaped yoke designated as a whole by the ref- ,40 erence character 28 and comprising also two laterally-spaced-apart externally-threaded sidearms 29-29 which respectively extend below the terminal ends of the saddle 24 before referred to.

Each side-arm 29-29 of the yoke 28 extends .45 downwardly through the adjacent one of two vertical passages 30-30 formed in the stock 22 on each of the respective opposite sides of the barrel-receiving groove 23 therein. A short distance below the upper face of the stock 22, each of the passages 30-30, above referred to, is enlarged in diameter to provide a downwardlyopening socket 31 in which is seated an inverted cup-shaped bushing 32 formed of steel or other g5 suitable material and preferably tightly fitting its complemental socket 31 in the stock 22.

Each of the bushings 32-32 comprises a centrally-apertured and relatively-heavy end-wall 33 6 through which the adjacent side-arm 29 of the yoke 28 passes with a free siliding fit. Depending from the relatively-heavy end-wall 33 of each bushing 32 is a relatively-slender cylindrically6ontoured side-wall 34 extending downwardly lb substantially to the under face of the adjacent portion of the stock 22, as will be observed by reference to Fig. 2.

Each of the complemental side-arms 29-29 of the yoke 28 is encircled by a helical vibration18 control spring 35 which is located within the adjacent one of the two bushings 32-32, and which has its upper terminal seated against the under face of the end-wall 33 of the said bushing. The opposite or lower end of each of the vibration-control springs 35-35 is seated against the upper face of an adjusting nut 36 which is provided with an internally-threaded bore 37 for threaded engagement with the particular externally-threaded side-arm 29 of the yoke 28 with which it is associated. Each of the adjustingnuts 36 is of cylindrical form exteriorly and is sized to be rotatable smoothly within the adjacent one of the bushings 32.

For convenience in effecting adjustments, each of the adjusting-nuts 36-36 is formed in its lower edge with a kerf 38 by means of which it may be turned for tightening or loosening the tension applied to its complemental vibrationcontrol spring 35, by means of a screw driver inserted through the open lower end of a given one of the bushings 32.

By means of the construction and arrangement of the parts above described, the marksman may adjust the down-pull or seating-pull of the yoke 28 by suitable manipulation of the adjusting-nuts 36-36 until by test the grouping of the shot upon the target indicates the minimum group-size and substantial uniformity of pattern.

Tests have indicated that different lots of ammunition require different adjustments of the tension of the vibration-control springs 35-35 or their equivalent as, for instance, ammunition charged with smokeless powder apparently requires a greater tensioning of the said vibrationcontrol spring than does semi-smokeless ammunition, apparently due to different vibration effects upon the barrel 20.

The construction illustrated in Fig. 6 corresponds in all essentials to that shown in the 65 preceding figures, and the parts bear reference characters corresponding to the reference characters designating the structure of Figs. 1 to 5 inclusive, with the addition of the reference character a. For instance, the barrel 20a and the stock 22a, etc. In addition to the features common to the structure of Figs. 1 to 5 inclusive, the structure of Fig. 6 includes a helical counterpoise-spring 39 which is seated in an upwardlyopening pocket 40 in the stock 22a and which 865 at its upper end is engaged with the under surface of the barrel 20a immediately below the center line of the bore 2 fa therein.

From the foregoing it will be seen that the construction shown in Fig. 6 corresponds to that shown in the preceding figures, save that in addition, a counterpoise-spring 39 is so located as to aid in dampening the vibrations which might be set up in the barrel 20a as a result of the discharge of the firearm, and hence the said counterpoise-spring aids in causing the firearm in which it forms a part, to more consistently peiform.

Referring now to the structure shown in Figs. 7, 8 and 9, it will be noted that a barrel 41 is provided in its under face with a transverselyextending dovetail-groove 42 receiving a similarly-shaped rib 43b on the upper surface of a barrel-lug 43 forming, to all practical purposes, a part of the barrel 41 and extending downwardly therefrom into a vertical passage 44 in a forestock 45.

The vertical passage 44 in the forestock 45 extends from the under side of the latter into intersecting relationship with a longitudinal barrel-receiving groove 46 in the said forestock, and has at its lower end a lateral enlargement 47. Seated in the lateral enlargement 47 of the vertical passage 44 just referred to, is the annular flange 48 of an inverted cup-shaped bushing 49 which is firmly seated in the said vertical passage 44.

Located within the bushing 49 and thrusting against the upper end-wall 50 thereof is a helical vibration-control spring 51 having its opposite or lower end seated against the upper face 2g of the head 52 of an adjusting-screw 53. The said adjusting-screw 53 extends upwardly freely through the apertured end-wall 50 of the bushing 49 and into threaded engagement with an internally-threaded bore 54 formed in the 06 barrel-lug 43 before referred to.

On each of the respective opposite sides of the vertical passage 44 in the forestock 45, the said forestock is provided with one of two oppositely-located longitudinal land-like barrelseats 55-55 which are preferably formed integral with the said forestock and which extend upwardly a slight degree above the general contour of the barrel-receiving groove 46 therein.

By providing the barrel-seats 55-55 or their equivalent, it is possible to conveniently determine the degree of seating of the barrel 41 with respect to the forestock 45 and to thereby avoid to a large measure any objectionable bending stresses upon the said barrel which might occur 4 were an effort made to rely upon the careful fitting of the entire surface of the barrel-receiving groove 46.

From the foregoing it will be seen that the barrel 41 of the structure of Figs. 7, 8 and 9 O may be drawn downwardly into seating engagement with the forestock 45 by the tension of the vibration-control spring 51 which may be conveniently regulated to meet the exigencies of various conditions, by the appropriate manipu- 5 lation of the adjusting-screw 53.

In Figs. 10 and 11 is illustrated a variant of the present invention in which a barrel 56 is yieldingly seated with respect to a forestock 57 by means of a sheet-metal vibration-controlling spring 58.

The barrel 56 of the construction now being described is like the structure of Figs. 7 to 9 inclusive provided in its under face with a transversely-extending dovetail-groove 59 which snugly receives a dovetail-rib 60 formed at the upper end of a barrel-lug 61 depending from the barrel 56 and extending into a clearancepocket 62 in the forestock 57. The clearancepocket 62 just referred to leads downwardly from 7& a longitudinal barrel-receiving groove 63 in the forestock 57 and has in turn leading downwardly from it in line with the barrel-lug 61, a clearance-passage 64 designed for the purpose as will hereinafter appear. The vibration-controlling spring 58 may be conveniently formed of spring steel and has its respective opposite ends firmly secured to the forestock 57 within clearance-passage 62 therein by means of anchoring-screws 65-65, each of which extends downwardly through one end of the said spring 98 and into threaded engagement with one of two similar nut-like escutcheons 66-66 mounted in the under face of the forestock 57, as is shown in Fig. 10.

The vibration-control spring 58 is formed midway of its length with a central aperture 67 through which freely extends the externallythreaded shank 68 of an adjusting-screw 69. The adjusting-screw 69 just referred to includes a head 70, the upper face of which seats against the under face of the vibration-controlling spring 58, as is clearly shown in Fig. 10. The externally-threaded shank 68 of the adjusting-screw 69 extends into threaded engagement with an internally-threaded bore 71 in the barrel-lug 61 before described.

With respect to the structure of Figs. 10 and 11, it will be obvious that the elastic force provided by the vibration-controlling spring 58 tending to seat the barrel 56 in the groove 63 of the forestock 57, may be conveniently adjusted or regulated to meet the requirements of various conditions by means of a screw driver inserted upwardly through the clearance-passage 64 in the forestock 57, to effect the appropriate turning of the adjusting-screw 69.

Various theories may be readily evolved as to the beneficial effects of providing adjustable vibration-controlling spring-forces tending to seat a firearm-barrel with respect to its complemental stock, but regardless of theory, it has been demonstrated to the satisfaction of experts that the construction and arrangement of parts above described and illustrated in the accompanying drawings does permit of the securing of consistently better scores and closer grouping of shots with a given firearm than has been before feasible.

The invention may be carried out in other specific ways than those herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiments are, therefore, to be considered in all G5 respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.

I claim: 1. A firearm construction, including in combination: a barrel; a stock adjacent the said barrel; a two-armed yoke extending around the said barrel and having spaced-apart side-arms extending into the said stock; spring-means carried by the said stock and drawing downwardly upon the said yoke to, in turn, draw downwardly upon the said barrel; and adjusting-means adjusting the downward pull of the said springmeans upon the said yoke to thereby adjust the ;5 barrel-seating effect of the said yoke and springmeans.

2. A firearm construction, comprising: a stock provided in its upper face with a longitudinal barrel-receiving groove; a barrel located in the barrel-receiving groove of the said stock; a twoarmed yoke extending around the said barrel and having spaced-apart side-arms extending downwardly into the said stock; spring-means carried by the said stock and drawing downwardly upon 7 the said yoke to, in turn, draw downwardly upon the said barrel to seat the same in the barrelreceiving groove of the said stock; and adjustingmeans adjusting the downward pull of the said spring-means upon the said yoke to thereby adjust the barrel-seating effect of the said yoke and 6 the said spring-means.

3. A firearm construction, including in combination: a barrel; a stock adjacent the said barrel; an arcuate saddle extending over the upper surface of the said barrel and having a locatinggroove therein; an inverted U-shaped yoke having its mid-portion seated in the locating-groove in the said saddle and having complemental sidearms extending downwardly into the said stock; spring-means drawing the said inverted Ushaped yoke downwardly to bring the said barrel into seated engagement with respect to the said stock; and adjusting-means for varying the tension of the said spring-means to increase or decrease the barrel-seating effects of the said inverted U-shaped yoke and the arcuate saddle engaged thereby.

4. A firearm construction, including in combination: a barrel; a stock extending below and adjacent the said barrel; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; spring-means comprising part of the said barrel-seating structure and constructed and arranged to cause the said barrel to be urged downwardly in seated relationship with respect to the said stock and to yieldingly resist upward movement of the said barrel with respect to the said stock; and adjustingmeans also comprising part of the said barrelseating structure and constructed and arranged to vary the tension of the said spring-means to increase or decrease the barrel-seating effect of the said barrel-seating structure and correspondingly changing the said yielding resistance to upward movement of the said barrel with respect to the said stock.

5. A firearm construction, including in combination: a stock provided in its upper face with a longitudinal barrel-receiving groove; a barrel located in the longitudinal barrel-receiving groove of the said stock; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; spring-means comprising 60 part of the said barrel-seating structure and yieldingly urging the said barrel downwardly into seated relationship within the barrel-receiving groove of the said stock and yieldingly resisting upward movement of the said barrel with respect b5 to the said stock; and adjusting-means also comprising part of the said barrel-seating structure and constructed and arranged to increase or decrease the resilient barrel-seating effects of the said barrel-seating structure and correspondingly .6 changing the yielding resistance thereof to upward movement of the said barrel with respect to the said stock.

6. A firearm construction, including in combination: a barrel; a stock extending below and ;5 adjacent the said barrel; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; a helical barrelseating spring comprising part of the said barrel- 'O0 seating structure and constructed and arranged to yieldingly cause the said barrel to be forced into seated relationship with respect to the said stock and to yieldingly resist upward movement of the said barrel with respect to the said stock; '76.

__ and adjusting-means constructed and arranged to vary the tension of the said helical barrelseating spring to increase or decrease the barrelseating effect of the said barrel-seating structure Sand correspondingly changing the said yieldingresistance to upward movement of the said barrel with respect to the said stock.

7. A firearm construction, comprising: a stock provided in its upper face with a longitudinal 9 barrel-receiving groove; a barrel located in the barrel-receiving groove of the said stock; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; 10 a helical barrel-seating spring comprising part of the said barrel-seating structure and constructed and arranged to urge the said barrel deeper into the barrel-receiving groove of the said stock and to yieldingly resist upward move09 ment of the said barrel with respect to the said stock; and adjusting-means also comprising part of the said barrel-seating structure and constructed and arranged to increase or decrease the resilient barrel-seating effect of the said helical $2 barrel-seating spring and to yieldingly resist upward movement of the said barrel with respect to the said stock.

8. A firearm construction, including in combination: a barrel; a stock adjacent the said barrel; an inverted two-armed yoke extending around the said barrel and having two side-arms extending downwardly into the said stock; two helical springs each encircling one of the sidearms of the said inverted U-shaped yoke and 40 engaged at one end with the said stock; and a pair of adjusting-nuts each threaded onto one of the said side-arms of the said inverted Ushaped yoke and bearing against the said helical spring encircling the same, to adjust the barrelseating effect thereof.

9. A firearm construction, comprising: a stock provided in its upper face with a longitudinal barrel-receiving groove; a barrel located in the barrel-receiving groove of the said stick; a twoarmed yoke extending around the said barrel and having spaced-apart side-arms extending downwardly into the said stock; two helical springs each encircling one of the side-arms of the said U-shaped yoke; and a pair of adjusting-nuts S0 each threaded onto one of the said side-arms of the said U-shaped yoke and bearing against the said helical spring encircling the same to adjust the downward pull upon the said U-shaped yoke and hence the barrel-seating effect thereof.

5 10. A firearm construction, including in combination: a barrel; a stock adjacent the said barrel; an arcuate saddle extending over the upper surface of the said barrel and having a locatinggroove therein; an inverted U-shaped yoke hav0 ing its mid-portion seated in the locating-groove in the said saddle and having complemental sidearms extending downwardly into the said stock; two helical barrel-seating springs each encircling Sone of the side-arms of the said inverted Ushaped yoke; and a pair of adjusting-nuts each threaded onto one of the said side-arms of the said U-shaped yoke and bearing against one of the said helical springs to adjust the barrel-seat.7 ing effect of the said U-shaped yoke and the arcuate saddle engaged thereby.

11. A firearm construction, including in combination: a barrel; a stock extending below and adjacent the said barrel; a barrel-seating strucSture connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; spring-means comprising part of the said barrel-seating structure and constructed and arranged to cause the said barrel to be urged downwardly in seated relationship with respect to the said stock; and a counterpoise-spring yieldingly opposing the force of the said spring-means of the barrel-seating structure and assisting in dampening the vibrations of the yieldingly-seated barrel. 12. A firearm construction, including in combination: a barrel; a stock extending below and adjacent the said barrel; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; a sheet-metal barrel-seating spring comprising part of the said barrel-seating structure and constructed and arranged to yieldingly cause the said barrel to be urged downwardly into seated relationship with respect to the said stock and to yieldingly resist upward movement of the said barrel with respect to the said stock; and adjusting-means also comprising part of the said barrel-seating structure and arranged to vary the tension of the said sheet-metal barrel-seating spring to increase or decrease the barrel-seating effect of the said bairel-seating structure and correspondingly changing the said yielding resistance to upward movement of the said barrel with respect to the said stock.

13. A firearm construction, including in combination: a barrel; a stock extending below and adjacent the said barrel; a barrel-seating structure connecting the said barrel to the said stock with capacity for seating-adjustment of the barrel with respect to the stock; a sheet-metal barrel-seating spring comprising part of the said barrel-seating structure, the said spring being carried by the said stock and secured thereto at each of its respective opposite ends; and an adjusting-screw also comprising part of the said barrel-seating structure and extending through the said sheet-metal barrel-seating spring to provide a threaded connection between the said barrel and the said spring, the said adjusting-screw being adjustable from beneath the said stock toward or from the said barrel to increase or decrease the barrel-seating effects of the said sheet-metal barrel-seating spring.

14. In a firearm construction, the combination 5° with a barrel and forestock of: means for producing resilient and minutely-adjustable pressure between said barrel and said forestock, said means comprising a groove in said forestock so shaped that said barrel rests therein at two small areas of the order of a fraction of an inch to two or three inches long and of the order of less than one-third the barrel diameter in width, whereby the support is substantially that of a V-block; a spring for providing pressure between 0( said barrel and said V-block; a screw for increasing or decreasing the tension of the said spring to adjust said pressure; means associated with said barrel for engagement with said screw; and a bearing-support portion within said forestock for other engagement with said screw and located in substantially-vertical relationship to the screw-engaging means of the said barrel; said spring, screw and the said associated means being so disposed that the pressure is substantially devoid of side-thrust whereby the pressure is applied vertically when the firearm is in normal firing position.

PAUL W. KLIPSCH. 7