US2466400A - Recoil-reducing and shot-patterncontrolling device for shotguns - Google Patents

Recoil-reducing and shot-patterncontrolling device for shotguns Download PDF

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Publication number
US2466400A
US2466400A US784386A US78438647A US2466400A US 2466400 A US2466400 A US 2466400A US 784386 A US784386 A US 784386A US 78438647 A US78438647 A US 78438647A US 2466400 A US2466400 A US 2466400A
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shot
choke
muzzle
grouping
recoil
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US784386A
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Ennis Darwin Tucker
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/40—Chokes for shotguns, e.g. automatic chokes

Definitions

  • This invention relates to a combination recoilreducing and shot pattern controlling device for shotguns, and contemplates an eflicient device of this kind adapted for attachment to a shotgun barrel, which device will materially reduce recoil and will enable ready control of pattern.
  • An object of the present invention is to provide a device of the above kind embodying a casing defining an. expansion chamber and provided at its outer end with gas discharge openings disposed substantially parallel with the axis of said chamber to facilitate the escape of gas from the latter instead of deflecting the gas laterally through side openings at a right angle to such axis.
  • Another object is to provide a device of the above kind including a re-grouping member at the outer end of the expansion chamber casing for re-grouping the shot after passing through and spreading laterally in said casing, and a fixed choke or pattern-control muzzle removably coupled to the outer end of said re-grouping member so that any degree of shot performance may be secured by readily substituting one choke or pattern-control muzzle for another whose bore has a different recompression taper.
  • the re-grouping member has an external annular flange at its inner end which is preferably integrally joined at its outer edge to the casing and which is provided with a circular series of the gas-escape openings.
  • the re-grouping member has a rearwardly enlarged rear mouth portion whose sloping surface defines a compression chamber and merges with,
  • Figure 1 is a side elevational view showing a recoil-reducing and shot pattern-controlling device constructed in accordance with the present invention and applied to the barrel of a shotgun;
  • Figure 2 is a view similar to Figure 1 with the major portion of the present device in central longitudinal section;
  • Figure 3 is a transverse section on line 3-3 of Figure 2;
  • Figure 4 is a transverse section taken on line 4-4 of Figure 2;
  • Figure 5 is a side elevational view of the removable choke or pattern-control muzzle.
  • Figure 6 is an end elevation looking toward the right of Figure 5.
  • 5 indicates a shotgun barrel having a collar 6 suitably secured on the forward end thereof.
  • the collar 6 has an externally reduced and threaded forward end portion I onto which is screwed the rear end of a cylindrical casing 3 that defines an expansion chamber 9 therein.
  • a shot re-grouping member 10 is provided at the outer or front end of the casing 8, for regrouping the shot after passing through and spreading laterally in the chamber 9.
  • This regrouping member has a rearwardly enlarged rear mouth portion ll whose sloping surface defines a compression chamber and merges with a substantially cylindrical front bore or throat l2 conforming to the largest desired shot pattern.
  • the re-grouping member H3 has an external annular flange 13 at its inner end which is preferably integrally joined at its outer edge to the casing as shown, and which is provided with a circular series of gas-escape openings M disposed substantially parallel with the axis of chamber 9 to facilitate the escape of gas from the latter, instead of deflecting the gas laterally through side openings at a right angle to such axis.
  • a fixed choke or pattern-control muzzle I5 is removably coupled to the outer end of the regrouping member In, so that any degree of shot performance may be secured by readily substituting one choke or pattern-contro1 muzzle for another whose bore has a different recompression. taper.
  • the tapered bore of the choke or muzzle I5 is indicated at l6.
  • .Means is provided to facilitate quick attachment of thechoke or muzzle l5 to or removal. of the same from the re-grouping member and to rigidly lock said choke or muzzle in place so that a gas-tight joint between said member and said muzzle is had.
  • the outer surface of the re grouping member in is screw-threaded to adjustably receive an internally threaded tubular coupling member IT.
  • the front end of this coupling member has a pair of. longitudinal slots 3 formed in its inner surface, which slots terminate in an annular groove or channel l9.
  • the choke or muzzle [5 Near its inner or rear end, the choke or muzzle [5 has an external annular flange 20' serving as a stop against the outer end of the coupling member l1.
  • the choke or muzzle I5 is provided with a pair of peripheral, outwardly projecting lugs 2] which are the counterpart, in size and spacing, of the longitudinal slots H3 in the coupling member I! and which are adapted to fit in the annular recess l9 thereof.
  • This arrangement constitute-s, in effect, a pair of bayonet joints, whereby the choke or muzzle !5 may be firmly locked on the outer end of the re-grouping member ill, the joint between the adjacent ends of the parts l0 and I5 being made gas-tight by machining said ends and through the medium of screwing the coupling member ll onto the regrouping member I0 as far as possible.
  • a pin 22 is extended between and anchored in an end of each lug 2i and the flange 20, in position to constitute a stop for the lug engageable with a side wall of the adjacent slot l8 as shown in Figure 4, thereby preventing excessive turning of the choke or muzzle i relative to the coupling q member ll.
  • the choke or muzzle may be readily registered with and entered in the slots 18, whereupon the choke or muzzle it may be turned to the position of Figure 4 to connect the choke or muzzle to the coupling member.
  • the coupling member may then be readily screwed further onto re-grouping member ill and tightened so as to rigidly mount said choke or muzzle in place and to secure a gas-tight joint between the parts [0 and 15.
  • the inner end of the coupling member ll is tapered rearwardly as at 23 so as to deflect the gas forwardly and laterally as it emerges from the gas-escape openings Hi. This provides a slight change in' course of the dis.- charged gases and offers little resistance to dis charge of the same.
  • a cylindrical casing adapted at its inner end for attachment to a shotgun barrel and defining a cylindrical expansion chamber therein, a cylindrical shot re-grouping member carried by the outer end of the casing and having a rearwardly enlarged rear mouth portion for re-grouping a charge of shot after passing through and spreading laterally in said expansion chamber, said shot re-grouping member having a threaded outer cylindrical surface for connection of a choke therewith, and an annular flange integrally connecting the inner end of the shot re-grouping member with the' outer end of the casing, said flange having an annular series of small and closely related straight cylindrical gasescape openings therethrough disposed parallel with the axis of said chamber, said openings being arranged in a circle outwardly of and concentric with the cylindrical outer surface of said shotre-grouping member.
  • a, shot re-grouping member a fixed choke butted at butted end against an end of the shot re-grouping member, sa d choke being formed near said butted end withen external annular flange and at said one end in spaced relation to said flange with a. pinrality of peripheral outwardly projecting lugs, and a coupling member provided at one end with a plurality of slots in its inner surface terminatmg in an annular groove and being the counterpart ofsaid lugs, said lugs and said slots and groove providing a plurality of bayonet joints whereby the choke may be quickly mounted on and removed from the outer end of. the shot regrouping member, said coupling vmember being adJustably fitted on said shot re-grouping member totightly draw the choke against said shot regrouping member.
  • a shot re-grouping member In a recoil-reducing and shot pattern-cone trolling device for shotguns, a shot re-grouping member, a fixed choke butted at one and against an end of the shot re-grouping member, a cou. plmgmember adjustably threaded on said shot re-grouping member, and coacting elements on the adjacent ends of the choke and the coupling member providing a quick detachable connection therebetween, said coupling member being adjustable to draw the choke tightly against said shot re-grouping member.

Description

A ril 5,1949.
D. T. ENNIS RECOIL'REDUCING AND sHoT PATTERN-CONTROLLING DEVICE FOR SHOTGUNS Filed Nov. 6, 1 947 Darwin Tucker Ennis INVENTOR.
A Hume Patented Apr. 5, 1949 UNITED STATES PATENT Darwin Tucker Ennis, Las Vegas, Nev.
Application November 6, 1947, Serial No. 784,386
3 Claims. 42--79) This invention relates to a combination recoilreducing and shot pattern controlling device for shotguns, and contemplates an eflicient device of this kind adapted for attachment to a shotgun barrel, which device will materially reduce recoil and will enable ready control of pattern.
An object of the present invention is to provide a device of the above kind embodying a casing defining an. expansion chamber and provided at its outer end with gas discharge openings disposed substantially parallel with the axis of said chamber to facilitate the escape of gas from the latter instead of deflecting the gas laterally through side openings at a right angle to such axis.
Another object is to provide a device of the above kind including a re-grouping member at the outer end of the expansion chamber casing for re-grouping the shot after passing through and spreading laterally in said casing, and a fixed choke or pattern-control muzzle removably coupled to the outer end of said re-grouping member so that any degree of shot performance may be secured by readily substituting one choke or pattern-control muzzle for another whose bore has a different recompression taper.
The re-grouping member has an external annular flange at its inner end which is preferably integrally joined at its outer edge to the casing and which is provided with a circular series of the gas-escape openings.
The re-grouping member has a rearwardly enlarged rear mouth portion whose sloping surface defines a compression chamber and merges with,
a substantially cylindrical front bore or throat conforming to the largest desired shot pattern.
The exact nature of the present invention, as well as other objects and features thereof, will become apparent from the following description when considered in connection with the accompanying drawing, in which:
Figure 1 is a side elevational view showing a recoil-reducing and shot pattern-controlling device constructed in accordance with the present invention and applied to the barrel of a shotgun;
Figure 2 is a view similar to Figure 1 with the major portion of the present device in central longitudinal section;
Figure 3 is a transverse section on line 3-3 of Figure 2;
Figure 4 is a transverse section taken on line 4-4 of Figure 2;
Figure 5 is a side elevational view of the removable choke or pattern-control muzzle; and
Figure 6 is an end elevation looking toward the right of Figure 5.
Referring in detail to the drawing, 5 indicates a shotgun barrel having a collar 6 suitably secured on the forward end thereof. The collar 6 has an externally reduced and threaded forward end portion I onto which is screwed the rear end of a cylindrical casing 3 that defines an expansion chamber 9 therein.
' A shot re-grouping member 10 is provided at the outer or front end of the casing 8, for regrouping the shot after passing through and spreading laterally in the chamber 9. This regrouping member has a rearwardly enlarged rear mouth portion ll whose sloping surface defines a compression chamber and merges with a substantially cylindrical front bore or throat l2 conforming to the largest desired shot pattern. Also, the re-grouping member H3 has an external annular flange 13 at its inner end which is preferably integrally joined at its outer edge to the casing as shown, and which is provided with a circular series of gas-escape openings M disposed substantially parallel with the axis of chamber 9 to facilitate the escape of gas from the latter, instead of deflecting the gas laterally through side openings at a right angle to such axis.
A fixed choke or pattern-control muzzle I5 is removably coupled to the outer end of the regrouping member In, so that any degree of shot performance may be secured by readily substituting one choke or pattern-contro1 muzzle for another whose bore has a different recompression. taper. The tapered bore of the choke or muzzle I5 is indicated at l6.
.Means is provided to facilitate quick attachment of thechoke or muzzle l5 to or removal. of the same from the re-grouping member and to rigidly lock said choke or muzzle in place so that a gas-tight joint between said member and said muzzle is had. The outer surface of the re grouping member in is screw-threaded to adjustably receive an internally threaded tubular coupling member IT. The front end of this coupling member has a pair of. longitudinal slots 3 formed in its inner surface, which slots terminate in an annular groove or channel l9. Near its inner or rear end, the choke or muzzle [5 has an external annular flange 20' serving as a stop against the outer end of the coupling member l1. At its inner or rear end, the choke or muzzle I5 is provided with a pair of peripheral, outwardly projecting lugs 2] which are the counterpart, in size and spacing, of the longitudinal slots H3 in the coupling member I! and which are adapted to fit in the annular recess l9 thereof. This arrangement constitute-s, in effect, a pair of bayonet joints, whereby the choke or muzzle !5 may be firmly locked on the outer end of the re-grouping member ill, the joint between the adjacent ends of the parts l0 and I5 being made gas-tight by machining said ends and through the medium of screwing the coupling member ll onto the regrouping member I0 as far as possible. In order to insure the proper positioning of the choke or muzzle [5 relative to coupling member H, a pin 22 is extended between and anchored in an end of each lug 2i and the flange 20, in position to constitute a stop for the lug engageable with a side wall of the adjacent slot l8 as shown in Figure 4, thereby preventing excessive turning of the choke or muzzle i relative to the coupling q member ll. It will be seen that, upon slight loosening or unscrewing of the coupling meme ber 17, the choke or muzzle I5 is released so that. it may be freely turned to register the lugs 2| with the slots 18 and to thereby permit ready re-' moval of the choke or muzzle. Conversely, the lugs 2! may be readily registered with and entered in the slots 18, whereupon the choke or muzzle it may be turned to the position of Figure 4 to connect the choke or muzzle to the coupling member. The coupling member may then be readily screwed further onto re-grouping member ill and tightened so as to rigidly mount said choke or muzzle in place and to secure a gas-tight joint between the parts [0 and 15.
It will be noted that the inner end of the coupling member ll is tapered rearwardly as at 23 so as to deflect the gas forwardly and laterally as it emerges from the gas-escape openings Hi. This provides a slight change in' course of the dis.- charged gases and offers little resistance to dis charge of the same. I i
From the foregoing description, it is believed that the construction, operation and advantages of the present invention will be readily understood and appreciated by those skilled in the art. Modifications and changes in details of construction are contemplated, such as fairly fall within the spirit and scope of the invention as claimed.
Having described the invention, what is claimed as new is:
1. In a recoil-reducing and shot pattern-controlling device for shotguns, a cylindrical casing adapted at its inner end for attachment to a shotgun barrel and defining a cylindrical expansion chamber therein, a cylindrical shot re-grouping member carried by the outer end of the casing and having a rearwardly enlarged rear mouth portion for re-grouping a charge of shot after passing through and spreading laterally in said expansion chamber, said shot re-grouping member having a threaded outer cylindrical surface for connection of a choke therewith, and an annular flange integrally connecting the inner end of the shot re-grouping member with the' outer end of the casing, said flange having an annular series of small and closely related straight cylindrical gasescape openings therethrough disposed parallel with the axis of said chamber, said openings being arranged in a circle outwardly of and concentric with the cylindrical outer surface of said shotre-grouping member.
2. In a recoil-reducing and shot pattern-controlling device for shotguns, a, shot re-grouping member, a fixed choke butted at butted end against an end of the shot re-grouping member, sa d choke being formed near said butted end withen external annular flange and at said one end in spaced relation to said flange with a. pinrality of peripheral outwardly projecting lugs, and a coupling member provided at one end with a plurality of slots in its inner surface terminatmg in an annular groove and being the counterpart ofsaid lugs, said lugs and said slots and groove providing a plurality of bayonet joints whereby the choke may be quickly mounted on and removed from the outer end of. the shot regrouping member, said coupling vmember being adJustably fitted on said shot re-grouping member totightly draw the choke against said shot regrouping member.
3. In a recoil-reducing and shot pattern-cone trolling device for shotguns, a shot re-grouping member, a fixed choke butted at one and against an end of the shot re-grouping member, a cou. plmgmember adjustably threaded on said shot re-grouping member, and coacting elements on the adjacent ends of the choke and the coupling member providing a quick detachable connection therebetween, said coupling member being adjustable to draw the choke tightly against said shot re-grouping member.
DARWIN, 'r. ENNIS.
REFERENCES crrnn The following references are o'frecord in the file of this patent:
UNITED STATES PATENTS.
France Feb; 3, 1941 l
US784386A 1947-11-06 1947-11-06 Recoil-reducing and shot-patterncontrolling device for shotguns Expired - Lifetime US2466400A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058925A (en) * 1976-09-01 1977-11-22 Remington Arms Company, Inc. Concepts of remington super trap choke
US4368589A (en) * 1979-08-28 1983-01-18 Costa Anthony A Hand gun and kit therefor
US4893426A (en) * 1988-10-07 1990-01-16 South Central Research Corp. Lugged coupling apparatus
US5794374A (en) * 1997-01-21 1998-08-18 Crandall; David L. Gun barrel stabilizer
ITBS20110044A1 (en) * 2011-04-07 2012-10-08 Bentivoglio Alessandro & C Snc METHOD AND COMPONENTS TO OPTIMIZE THE BALLISTIC OF THE SMOOTH GUNS
US8584391B1 (en) * 2013-06-27 2013-11-19 TTSG Associates Tactical telescoping shotgun
US20140096426A1 (en) * 2012-10-04 2014-04-10 Browning Firearm choke tube
ITBS20120173A1 (en) * 2012-12-07 2014-06-08 Bentivoglio Alessandro & C Snc METHOD AND COMPONENTS TO OPTIMIZE THE BALLISTIC OF SMOOTH GUNS
US20150204630A1 (en) * 2012-08-27 2015-07-23 Christos Sotiropoulos Interchangeable choke tube for the shot load of smoothbore shotgun which causes to the shot load gradually initial tightening of progressive form, expansion and final retightening
US20160097609A1 (en) * 2014-10-03 2016-04-07 Alexander Nikolaevich PENCHUK Barrel coupling for firearm
US20190154379A1 (en) * 2015-08-12 2019-05-23 John Baker Firearm Barrel Stiffening and/or Cooling Systems and Methods
US11015891B2 (en) * 2015-08-12 2021-05-25 John L. Baker Firearm barrel having improved stiffening and/or cooling
US11441867B2 (en) * 2016-03-25 2022-09-13 Sound Moderation Techoologies. LLC Silencer mount
US20220325972A1 (en) * 2020-04-23 2022-10-13 Seraph Enterprises, Inc. Quick disconnect system for muzzle devices

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US795069A (en) * 1904-06-27 1905-07-18 Rudolph F Settlage Hose-coupling.
US812140A (en) * 1901-06-14 1906-02-06 Perry E Kent Gun-barrel for pistols, rifles, and ordnance.
DE321148C (en) * 1914-04-25 1920-05-21 C Th Stockey Shotgun handlebar
US1455661A (en) * 1922-08-02 1923-05-15 Edward L Rhinehart Choke for shotguns
US1462824A (en) * 1919-10-29 1923-07-24 Reed Coupling or tool joint
US1773260A (en) * 1928-04-26 1930-08-19 Richard M Cutts Compensator device
FR864931A (en) * 1940-04-16 1941-05-08 Device increasing the range and eliminating the recoil effect of guns and other firearms
US2398298A (en) * 1944-03-22 1946-04-09 Remington Arms Co Inc Firearm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US812140A (en) * 1901-06-14 1906-02-06 Perry E Kent Gun-barrel for pistols, rifles, and ordnance.
US795069A (en) * 1904-06-27 1905-07-18 Rudolph F Settlage Hose-coupling.
DE321148C (en) * 1914-04-25 1920-05-21 C Th Stockey Shotgun handlebar
US1462824A (en) * 1919-10-29 1923-07-24 Reed Coupling or tool joint
US1455661A (en) * 1922-08-02 1923-05-15 Edward L Rhinehart Choke for shotguns
US1773260A (en) * 1928-04-26 1930-08-19 Richard M Cutts Compensator device
FR864931A (en) * 1940-04-16 1941-05-08 Device increasing the range and eliminating the recoil effect of guns and other firearms
US2398298A (en) * 1944-03-22 1946-04-09 Remington Arms Co Inc Firearm

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058925A (en) * 1976-09-01 1977-11-22 Remington Arms Company, Inc. Concepts of remington super trap choke
US4368589A (en) * 1979-08-28 1983-01-18 Costa Anthony A Hand gun and kit therefor
US4893426A (en) * 1988-10-07 1990-01-16 South Central Research Corp. Lugged coupling apparatus
US5794374A (en) * 1997-01-21 1998-08-18 Crandall; David L. Gun barrel stabilizer
ITBS20110044A1 (en) * 2011-04-07 2012-10-08 Bentivoglio Alessandro & C Snc METHOD AND COMPONENTS TO OPTIMIZE THE BALLISTIC OF THE SMOOTH GUNS
WO2012137120A3 (en) * 2011-04-07 2012-11-29 BENTIVOGLIO ALESSANDRO & C. S.n.c. Method and components for optimizing the ballistic of shotguns with smooth barrel
US20150204630A1 (en) * 2012-08-27 2015-07-23 Christos Sotiropoulos Interchangeable choke tube for the shot load of smoothbore shotgun which causes to the shot load gradually initial tightening of progressive form, expansion and final retightening
US9518794B2 (en) * 2012-08-27 2016-12-13 Christos Sotiropoulos Interchangeable choke tube for the shot load of smoothbore shotgun which causes to the shot load gradually initial tightening of progressive form, expansion and final retightening
US20140096426A1 (en) * 2012-10-04 2014-04-10 Browning Firearm choke tube
US8978286B2 (en) * 2012-10-04 2015-03-17 Browning Firearm choke tube
US9297600B1 (en) * 2012-10-04 2016-03-29 Browning Firearm choke tube
ITBS20120173A1 (en) * 2012-12-07 2014-06-08 Bentivoglio Alessandro & C Snc METHOD AND COMPONENTS TO OPTIMIZE THE BALLISTIC OF SMOOTH GUNS
US8584391B1 (en) * 2013-06-27 2013-11-19 TTSG Associates Tactical telescoping shotgun
US20160097609A1 (en) * 2014-10-03 2016-04-07 Alexander Nikolaevich PENCHUK Barrel coupling for firearm
US9927201B2 (en) * 2014-10-03 2018-03-27 Alexander Nikolaevich PENCHUK Barrel coupling for firearm
US20190154379A1 (en) * 2015-08-12 2019-05-23 John Baker Firearm Barrel Stiffening and/or Cooling Systems and Methods
US10641569B2 (en) * 2015-08-12 2020-05-05 John Baker Firearm barrel stiffening and/or cooling systems and methods
US11015891B2 (en) * 2015-08-12 2021-05-25 John L. Baker Firearm barrel having improved stiffening and/or cooling
US11441867B2 (en) * 2016-03-25 2022-09-13 Sound Moderation Techoologies. LLC Silencer mount
US20230168057A1 (en) * 2016-03-25 2023-06-01 Sound Moderation Technologies, Llc Firearm muzzle attachment apparatus
US11879697B2 (en) * 2016-03-25 2024-01-23 Sound Moderation Technologies, Llc Firearm muzzle attachment apparatus
US20220325972A1 (en) * 2020-04-23 2022-10-13 Seraph Enterprises, Inc. Quick disconnect system for muzzle devices
US11486670B1 (en) * 2020-04-23 2022-11-01 Seraph Enterprises, Inc. Quick disconnect system for muzzle devices

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