US1419308A - Air gun - Google Patents

Description

E. S. ROE.

Patented June 13, 11.922.

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AIR GUNl APPLICATION man Nov. r2, i920.

Patente June i139 1922.

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m MM# zum We t wie n. n u je i n e t *l iti trl it", la o ERNEST S. ROE, OIF PLYMOUTH, BEIGE-UQAM', TQ MARKHAM AER RIFLE COMPANY, OF PLYMOUTH, MIGIGAN, A, CRPORATION 0F MICHIGAN.

AIR GUN.

T 0 all whom t may concern:

Be it known that l, llnNnsT S, Ron, a cit izen of the United States of America, resid-- ving at Plymouth, in the county of i/Vayne and State of Michigan, have invented Cei tain new and useful Improvements in Agir Guns, of which the following` is a speciica tion, reference being had therein to the accompanying crawings.

The invention relates to guns and refers more particularly to air guns or riflesA Qne of the objects of the invention is to provide an air gun of that type in which the gun is cocked by what is known as breaking-down the barrel and to provide means for automatically sealing the joint between the abutment in the casing and the barrel when the latter is in shooting position, or in other words, in alignment with the casing. Another object of the invention is to provide means cooperating with the pivot connecting the barrel and casing to hold the barrel and casing in shooting position. Further objects of the vinvention reside in the novel features of construction and combimitions and arrangements of parts as more fully hereinafter set forth.

In the drawings:

Figure l is a side elevation of an air gun embodying my invention;

TFigure 2 is a longitudinal sectional elevation of a portion thereof showing the parts in shooting position;

Figure 3 is a similar view showing the parts in broken-down position;

Figure 4 is a j )erspective view of the true barrel mechanism g Figure 5 is a' bottom plan view of a portion of the air gun;

Figure 6 is bottom pla-n view of sight.

l represents the usual stock of the gun, and 2 the barrel section thereof, rl' he stock is provided at its forward end with the casing 3 which forms the housing for the air compression chamber 4f, the plunger 5, the coil spring 6 for actuating the plunger in one direction, and the trigger mechanism 7, which may be of usual construction. 6 a stationary abutment secured in the forward end of the air compression chamber et and having the central aperture 9 therein for the passage of the air.

The barrel section 2 is pivoted to the forspeciication of Letters Patent. Patented Jilin@ 13, i922.

Application filed November 12, 1926.

Serial No. 423,5?0.

ward end ofthe casing 3 at l0 and the breakdown movement of this barrel section about the pivot l0 is utilized for compressing the coil springY 6 and cooking the air gun. As shown, the barrel section 2 has the depending side flanges l1 at its rear end and the casing 3 has the depending side flanges 12, the adjacent ends of which are pivotally connected together at l0. 1 3 is a rod, preferably U-shaped, pivotally connected at its ends to the depending side flanges ll of the barrel section 2 as at lll. The base 15 of this i-shaped rod eX- tends through the parallel longitudinal slots 16 in the depending side flanges l2 of the casing and is adapted to engage the downtnrned end l? of the shank secured to the plunger 5 for longitudinally moving the latter backward to compress the coil spring 6 upon the breaking-down movement of the barrel section. As shown in Figure 3, the barrel section is rotated downwardly and to the rear with respect to the casing until the do\vn-tnrned end '1.7 is engaged by the shoulder 16 of the trigger mechanism after which the barrel section is returned back to shooting position, when it is in alignment with the casing.

Then the barrel section and casing are in alignment, their adjacent ends contact so that it is impossible to swing the barrel section further. To align the axis of the barrel sect-ion and casing in a vertical plane, the forward end of the 'casing is provided with the upper segmental portion 3 which overlaps and tits the barrel section.

F or the purpose of maintaining this bar rel section in horizontal alignment with the casing, the lll-shaped rod lf3 is made resilient and its parallel arms extend adjacent to the outer sides of the depending side lianges 1l and also the pivot lll is located upon the depending side flanges ll, so that when the barrel section is in alignment with the casing, the parallel arms of the U-shaped rod engage the heads at the opposite ends of the pivot l0 and those portions thereof adjacent to the casing. Thus it is seen, that in order to break-down the air gun, the parallel arms of the lil-shaped rod must yieldably bend laterally outward to pass over the heads of the pivot 10 and upon the return movement of the barrel section, these parallel arms will snap over these heads therebj.7 yieldabljvv holding the barrel section and the easing' in shootingposition.

For theI purpose oiE niaintaining` an air tight seall between the abutment S and the true barrel 19 and at the saine time removably mountingthel true barrel in the Yfalse barrel 20, the 'following construction is provided: is a stop Within the Yfalse barrel Q0, and is an annulus` surrounding the true barrel 19 and engaging;v the inner end el the stop 2l. is an abutment ,dlv secured to the true barrel 19j and /lis a coil sprintf; between the annulus and alinitment ..y 'for vieldably Aforcing the true barrel ll rea-s'- Wardly and into engagement n'ith the al itment S in the easing); To limit the rene Ward movement ot the true barrel 'I9 so that it will not lfieeome eomiiwletely dif-ei from the YFalse barrel il() or moved reari n so tar that it Will interfere with the swine'- ing oit the barrel section into sho tion, there is the stop Q5v1 which is aly a sight, and has the portion entendi :t forwardly Within and parallel to the Wall oi the lalse barrel 20. The 'forward end ot this portion oit the stop has the li-shaped notch 27 therein :tor engagement by the abutment 23. Thus it is seen that the rear end oit the trnel irrel i9 which is preferably provided with the annular 'Harige Q8 is ieldably 'forced into Contact with the forward end ot the abutment 8, but at the same time the movement ot the true barrel in either direction is limited by means oi' the stops Slt and As shown in Figure il, the rear end ot the true barrel lil is adaptei'l to eide-nd slightly beyond the rear ond ol' the ilse barrel Q() when the falso barrel is in itsI broken-down position; but as shoun in lds-j nre Q, the rear end o'l" the true ba r'rel is substantially .flush with the rear end el the false barrel due to being en [red bv the abutment 8 when the false bai rel is rotated into shooting' posiion. The trent ne ot the abutment is preterablv 'formed ol' a pliable material such as leather to assure a better seal.

As shoivn in Figure fl, the annulus has the segmental notch 29 in its periphery to permit of moving the annulus longitudinal ly into the 'false barrel 2O and past the portion Q6 of the stop 25. The abutment tixedly secured to the trne barrel 19 has the hub portion 30 upon the true barrel and the diametrieally oppositely extending flat portions 31, one oli' which 1s adapted to engage in the U-shaped slot Q1 ot the stop reason ot this fronsi'iructiom the annulus coil spring; 24;, abutment 2S and true barrel 19 may be longitudinally inserted into the 'liaise barrel 20 and the true barrel then rotated sntlicientlj,T to engage the abutment 23 in the U-shaped slot 27.

To facilitate the rotation ot the true barrel 19 and abutment 23 fixed thereoni the W has the slot flange o 32 in its rear tace to permit ot the use ot a suitable tool such as a screw-driver.

Another feat-ure of my invention resides in Vorminp,` the shank connected to the pluniier ot the gun to 'facilitate the assembly of the parts. ln detaih 33 is a cylindrical shank secured to the plunger 5 and having at its rear end the down-turned portion 1T. The coil spring` 6 engages Within this cylindrical shank.

What l claim as my invention l. ln an air gun, the combination With the and an abut-ment 'thereina provided n n i an apertur for the passage of air, of a Vlalse barrel pivot-all)T connected to said eas-- i ngj a true barrel in said false barrel adapted to register ivith said aperture when said lalse barrel is in alignment with said casing, and yieldable means tor sealing the joint between said true barrel and abutment, operated automatically by swinging said ifelse barrel into alignment With said easing.

2. ln an air gun, the combination with the easingY and an abutment liXed therein and provided with an aperture for the passage oit air7 oit a false barrel pivotally connected to said easing7 a true barrel in said false barrel adapted to register with said aperture When'said false barrel is in alignment with said casing, and means :tor yieldablv 'forcing said true barrel rearwardly` said abutment being` arranged so that it engages said true barrel upon the swinging et said `false barrel into alignment with said easing and loi-nis a seal therewith When said :talee barrel is in alignment with said casing'.

il. ln an air gun, the combination with the easing and an abutment iiXed therein and provided With an aperture 'for the pasoit air, ot a Yfalse barrel pivotally connected to said easing. a true barrel removably mounted in said false barrel, means for vieldably forcing said true barrel into contact with said abutment when said false barrel is in alignment With said casing, and stops upon said false barrel for limiting the movement ot said true barrel in either direetionq one of said stops permitting of removal of said true barrel.

4l. ln an air gun, the combination with the casing and an abutment fixed in the outer end thereof and provided with an aperture Afor the passage of air, of a false barrel pivotalljfv Connected to said easing, a true barrel removably mounted in said false barrel and adapted to register With the aperture in said abutment when said lalse barrel is in alignment With said easing, a stop upon said false barrel having a portion extending adjacent to the wall thereof with a slot in its forward end, a second stop Within said false barrel 'forward ot said member, an abutment upon said true barrel engageable in the slot in said first-mentioned stop, and a coil spring surrounding said true barrel and located between said true barrel abutment, and second sto 5I.) In an air gun, the combination with the casing and an abutment fixed in the outer end thereof and provided with an aperture for the passage of air, of a false barrel pivotally connected to said casing, a true barrel insertible into said false barrel and adapted to register with the aperture in said abutment when said false barrel is in alignment with said casing, a sight upon said false barrel having a portion extending within and adj acent to the wall thereof with a slot in its forward end, a second stop within said false barrel, an abutment upon said true barrel having a portion extending radially therefrom and into engagement with the slot in said sight, a coil spring between said stop and abutment and a iange upon said true barrel adapted to abut said abutment in said casing, said flange provided with a recess for facilitating the rotation of the true barrel in assembling with the false barrel.

6. In an air gun, the combination with the casing, of a barrel pivotally connected thereto, and means engaging and cooperating with the pivot for holding said barrel in alignment with said casing.

7. In an air gun, the combination with the casing, a plunger therewithin and a spring for actuating said plunger in one direction, of a barrel pivotally connected to said casing, means for compressing said spring upon rotation of said barrel, and means cooperating with said compressing means for holding said barrel in alignment with Said casing.

S. In an air gun, the combination with the casing, a plunger therewithin and a spring for actuating said plunger in one direction, of a barrel pivotally connected to said casing, and a rod connected to said barrel for compressing said spring upon rotation of said barrel, said rod being yieldably engageable with the pivot between said barrel and casing for holding said barrel in alignment with said casing.

9. In an air gun, the combination with the casing, a plunger therewithin and a spring for actuating said plunger in one direction, of a barrel pivotally connected to said casing, and a lll-shaped rod connected to said barrel at its ends for compressing said spring upon swinging of said barrel, said U-shaped rod having substantiallyparallel arms spaced apart a distance less than the length of the pivot connecting said barrel to said casing and said arms being resilient to snap over the ends of the pivot when swinging said barrel into shooting position.

lO. In a gun, the combination with the casing, of a barrel pivotally connected thereto, and a rod pivotally connected to said casing and barrel and yieldably engageable with the pivot between said casing and barrel 'for holding said barrel in alignment with said casing.

In testimony whereof I aix my signature.

ERNEST S. ROE.

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