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Publication numberUS1455661 A
Publication typeGrant
Publication dateMay 15, 1923
Filing dateAug 2, 1922
Priority dateAug 2, 1922
Publication numberUS 1455661 A, US 1455661A, US-A-1455661, US1455661 A, US1455661A
InventorsRhinehart Edward L
Original AssigneeRhinehart Edward L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Choke for shotguns
US 1455661 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

m 6, 5 F4D 1 .Vf .m h m, TS l L. mm E Nwz mms RFA und n man \`I|.\\\\M.lf E c F k May l5, 1923.

Patented May l5, 1923.

UNITED STATES T, OF BOANOKE, VIRGINIA.

CHOKE FOB SHOTGUNS.

Application led August 2, 1922. Serial No. 579,209.

To all whom it may concern.'

Be it known that I, EDWARD L. RmnnnAn'r, a citizen of the United States, residing at Roanoke in the county of Roanoke and State of Vzirginia, have invented new and useful Improvements in Chokes for Shotguns, of which the following is a specitication.

This invention relates to an attachment for firearms, the general object of the invention being to provide means wherebv the barrel may be choked to suit different shooting conditions by insertin any one of a number of choke devices, w ich are of different sizes.

Another object of the invention is to form threads on the choke tubes to engage the threaded part of the barrel and to provide a lock device for holding the tube against movement during shooting.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the sev; eral views, and in which:-

Figure 1 is a sectional view through a gun barrel with the invention in place.

Figure 2 is an enlarged detail view of the device itself.

As shown in these views, the device consists of a tube 1, which is formed with a cylindrical part 2, having a beveled end 3, a threaded part 4, of eater diameter than the part 2 and a knur ed head 5 which permits the tube to be put in position and removed from the barrel. I prefer to make the threads interrupted as shown. These tubes are made of different sizes, so as to (rive, for instance, cylinder, modified and zfull choke. The tube engages the barrel as shown with its beveled end abutting the bevel shoulder 6 of the barrel, the plain part fitting snu ly the art 7 and the threads engaging t e threa s of the barrel, with the head abutting the end of the barrel. A latch 8 is provided for holding the tube a ainst turning movement while shooting.

his latch is dovetailed into the barrel.

From the above it will be seen that the gun can be easily and quickly changed to l make it capable of being used with a choke of the required size for various conditions of shooting. For instance, if one is shooting in a eld, he would use the modified choke tube and if one then passes into a woods he would remove the modified tube and re lace it by the cylinder tube, and so on. T is renders it unnecessary to have different guns to secure the different chokes and the tubes are so small they can be easily carried on the person.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such chauffes fall within the scope of the appended c aims.

Having thus described my invent-ion what I claim isz- 1. A gun barrel having its outer end provided with a cylindrical part of greater diameter than the bore, a tapered shoulder connecting the said cylindrical part with the bore and a screw threaded part of reater diameter than the cylindrical part iaving interchangeable choke tubes, each provided with a cylindrical part for engaging the cylindrical part of the bore, a tapered end for engaging the tapered shoulder and a screw threaded part for engaginw the threaded part of the barrel, a knurled head on each tube overlapping the outer end of the barrel and means for loekingthe tube in the barrel.

2. A'gun barrel having its outer end provided with a c lindrical part of Greater diameter than t e bore, a tapered shoulder connecting the said cylindrical part with the bore and a screw threaded part of greater diameter than the cylindrical part having interchangeable choke tubes, each provided with a cylindrical part for engaging the cylindrical part of the bore, a tapered end for engaging the tapered shoulder, a screw threaded part for engaging the threaded part of the barrel, a knurled head on each tube overlapping the outer end of the barrel, means for locking the tube in the barrel, such means consisting of a latch dove-tailed into the barrel.

In testimony whereof I affix my signature.

EDWARD L. RHINEHART.

llO

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2466400 *Nov 6, 1947Apr 5, 1949Tucker Ennis DarwinRecoil-reducing and shot-patterncontrolling device for shotguns
US3089273 *Apr 24, 1961May 14, 1963Maurice PhilippeLocking device for chokes for shotguns
US3714727 *Aug 25, 1970Feb 6, 1973Skb Arms CoA gun barrel
US4058925 *Sep 1, 1976Nov 22, 1977Remington Arms Company, Inc.Concepts of remington super trap choke
US4368589 *Aug 28, 1979Jan 18, 1983Costa Anthony AHand gun and kit therefor
US4467546 *Jun 4, 1982Aug 28, 1984Fabrica D'armi P. Beretta S.P.A.Gun barrel choke
US4546564 *Aug 15, 1983Oct 15, 1985Costa Anthony ARifled bore construction for a gun barrel
US6052935 *Jul 10, 1998Apr 25, 2000Remington Arms Company, Inc.Shotgun choke tube
US6557290Dec 28, 2000May 6, 2003Daniel F. KumlerAdjustable shotgun choke
US20140096426 *Oct 4, 2012Apr 10, 2014BrowningFirearm choke tube
Classifications
U.S. Classification42/79
International ClassificationF41A21/40, F41A21/00
Cooperative ClassificationF41A21/40
European ClassificationF41A21/40