US1659625A - Rifle and bullet - Google Patents

Rifle and bullet Download PDF

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Publication number
US1659625A
US1659625A US90911A US9091126A US1659625A US 1659625 A US1659625 A US 1659625A US 90911 A US90911 A US 90911A US 9091126 A US9091126 A US 9091126A US 1659625 A US1659625 A US 1659625A
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United States
Prior art keywords
bullet
barrel
rifle
shell
section
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Expired - Lifetime
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US90911A
Inventor
Albert A Cowan
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Individual
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Priority to US90911A priority Critical patent/US1659625A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile

Definitions

  • the object of this invention is to provide a rifle and bullet so constructed that friction shall be reduced, and the effectiveness of the weapon when a given quantity of powder is employed shall be greatly increased.
  • a further object is to provide a bullet and shell for use with a barrel and breech formed to correspond with the new construction, the shell being angular in cross section and the bullet being rilied and connected with the shell in a particular manner, the rifling of the barrel being cut away as described.
  • Figure 1 shows the rifle in side elevation, portions being broken away and other portions being in longitudinal section.
  • Figure 2 shows a shell in position and in end elevation.
  • Figure 3 shows a portion of the barrel in longitudinal section.
  • Figure 4 is a section on line of Figure 3, showing the riing of the barrel.
  • Figure 6 is an end view of the cartridge.
  • Figure 7 is a section through the bullet, the section being on line 7-7 of Figure 5.
  • the rifle may be of standard construction except as regards the feature hereinafter described and showing departure from usual form and construction.
  • the stock of the gun is designated 10, and the barrel 11 has threaded connection at 12 with the internally threaded portion 13 of the breech chamber.
  • the barrel is provided with a square, or other form of angular bore 14, the walls of which are straight, these walls merging into tapered walls l5.
  • the rifles 16 of the barrel are cut away at 17 to form portions permitting the rifles of the bullet to be described below to enter the rifles ofthe barrel.
  • the .rifles of the barrel will therefore have an edge portion on the non-friction side thereof which is parallel with the main axis of the barrel, the friction side of the rifle being in spiral forni.
  • the shell is designated generally by the letter S and includes the square or other angular portion 20, corresponding with the angular portion 14 of the bore, said portion 2O having at one end thereof an extracting rim or iiange 21 serving the usual purpose.
  • the bullet B includes a forward tapered portion 28, the taper assisting in bringing the bullet to place in the barrel, and with reference to the rifles thereof.
  • the rifled portion of the bullet is designated 30, it having already been noted that the rifles are interrupted by band 24, this band tending to prevent the escape of gases.

Description

Feb. 21, 1928.
. A. A. COWAN RIFLE AND BULLET Filed Feb. 26. 1926 2 Sheets-Sheet l ATNMEY Feb. 21, 1928.
A. A. COWAN RIFLE AND BULLET Filed Feb. 25, 1926 2 Sheets-Shee.. 2
INVENTOR Patented Feb. 21, 1928.
PATE. T QFFIC ALBERT A. COWAN, 0F VICTOR, MONTANA.
RIFL AND BULLET.
Application filed February 26, 1926. Serial No. 90,911.
The object of this invention is to provide a rifle and bullet so constructed that friction shall be reduced, and the effectiveness of the weapon when a given quantity of powder is employed shall be greatly increased.
A further object is to provide a bullet and shell for use with a barrel and breech formed to correspond with the new construction, the shell being angular in cross section and the bullet being rilied and connected with the shell in a particular manner, the rifling of the barrel being cut away as described.
With the foregoing and other objects in view, the invention consists in the novel construction and arrangement of elements to be described, illustrated and claimed, it being understood that modifications may be made within the scope of the claim without departing from the spirit of the invention.
In the drawing forming part of this application,
Figure 1 shows the rifle in side elevation, portions being broken away and other portions being in longitudinal section.
Figure 2 shows a shell in position and in end elevation.
Figure 3 shows a portion of the barrel in longitudinal section.
Figure 4 is a section on line of Figure 3, showing the riing of the barrel.
Figure 5 is an enlarged view of the shell and bullet, the view being chieiiy in elevation.
Figure 6 is an end view of the cartridge.
Figure 7 is a section through the bullet, the section being on line 7-7 of Figure 5.
Figure 8 is a section on line 8-8 of Figure 5.
Figure 9 is a section on line 9-9 of Fig ure 5.
The rifle may be of standard construction except as regards the feature hereinafter described and showing departure from usual form and construction. The stock of the gun is designated 10, and the barrel 11 has threaded connection at 12 with the internally threaded portion 13 of the breech chamber. The barrel is provided with a square, or other form of angular bore 14, the walls of which are straight, these walls merging into tapered walls l5. The rifles 16 of the barrel are cut away at 17 to form portions permitting the rifles of the bullet to be described below to enter the rifles ofthe barrel. The .rifles of the barrel will therefore have an edge portion on the non-friction side thereof which is parallel with the main axis of the barrel, the friction side of the rifle being in spiral forni. The shell is designated generally by the letter S and includes the square or other angular portion 20, corresponding with the angular portion 14 of the bore, said portion 2O having at one end thereof an extracting rim or iiange 21 serving the usual purpose.
The shell is tapered at 22, the taper extending to the point shown, and the extreme end being crimped at 23 for engagement with the bullet. The forward band 24 of the bullet is in contact with the crimped portion 23, and is of soft metal. The rear band 25 is also of soft metal. The rifling of the bullet referred to below, is interrupted by the bands 24 and 25.
The bullet B includes a forward tapered portion 28, the taper assisting in bringing the bullet to place in the barrel, and with reference to the rifles thereof. The rifled portion of the bullet is designated 30, it having already been noted that the rifles are interrupted by band 24, this band tending to prevent the escape of gases.
The shell is designed to place the bullet properly in the barrel, and the bullet is designed toenter the rifling and pass through the barrel with as little friction as practicable, thereby increasing the efficiency of the powder charge and increasing the speed of the missile. It is also possible to carry out the principle involved by making use of a round shell, the form here described being preferred.
What is claimed is In a fire-arm, a breech chamber, square in cross section, and a riled barrei, the nonfi'iction edge of the rifles being cut away near the breech to form walls substantially parallel with the main axis of the barrel, and a chamber tapering toward a reduced forward portion.
In testimony whereof I affix my signature.
ALBERT A. COWAN.
US90911A 1926-02-26 1926-02-26 Rifle and bullet Expired - Lifetime US1659625A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498052A (en) * 1946-01-05 1950-02-21 Nicol H Smith Method of retarding erosion of gun barrels
US2815602A (en) * 1954-02-23 1957-12-10 Remington Arms Co Inc Barrel chamber for cartridges of different length
US2983223A (en) * 1954-09-03 1961-05-09 Dardick Corp Ammunition for open chamber guns
US3046890A (en) * 1959-09-11 1962-07-31 Dardick Corp Ammunition for open chamber guns
US3687077A (en) * 1970-01-22 1972-08-29 Hughes Tool Co Fully telescoped caseless cartridge
US3857339A (en) * 1972-03-30 1974-12-31 A Grandy Ammunition and weapon systems
US3861308A (en) * 1972-03-30 1975-01-21 Andrew J Grandy Ammunition and weapon systems
US3913446A (en) * 1972-03-30 1975-10-21 Andrew J Grandy Ammunition and weapon systems
US3913445A (en) * 1972-03-30 1975-10-21 Andrew J Grandy Ammunition and weapon systems
US4308681A (en) * 1980-03-14 1982-01-05 Gorman Richard M Progressive ratchet rifling in a full gain twist
US5094169A (en) * 1989-10-10 1992-03-10 Evitts James E Cartridge for small arms
US6427373B1 (en) 1999-05-21 2002-08-06 Wil Schuemann Gun barrel rifling
US20050150413A1 (en) * 2003-12-12 2005-07-14 Lord Steven M. Firearms cartridge with rectangular, rounded oblong, or elliptical casing
US20060065260A1 (en) * 2004-05-06 2006-03-30 Robert Judson Barrel for paint-ball gun
US10989507B2 (en) * 2019-01-29 2021-04-27 Mark Thompson Systems and methods for matching ogive twist and barrel twist
US11280599B2 (en) * 2019-12-10 2022-03-22 Chris Lee Billings Rifled barrel having a rifled and non-rifled portion
US20220163299A1 (en) * 2019-06-26 2022-05-26 Hermann Arthur WEIDEMANN A bullet

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498052A (en) * 1946-01-05 1950-02-21 Nicol H Smith Method of retarding erosion of gun barrels
US2815602A (en) * 1954-02-23 1957-12-10 Remington Arms Co Inc Barrel chamber for cartridges of different length
US2983223A (en) * 1954-09-03 1961-05-09 Dardick Corp Ammunition for open chamber guns
US3046890A (en) * 1959-09-11 1962-07-31 Dardick Corp Ammunition for open chamber guns
US3687077A (en) * 1970-01-22 1972-08-29 Hughes Tool Co Fully telescoped caseless cartridge
US3913445A (en) * 1972-03-30 1975-10-21 Andrew J Grandy Ammunition and weapon systems
US3861308A (en) * 1972-03-30 1975-01-21 Andrew J Grandy Ammunition and weapon systems
US3913446A (en) * 1972-03-30 1975-10-21 Andrew J Grandy Ammunition and weapon systems
US3857339A (en) * 1972-03-30 1974-12-31 A Grandy Ammunition and weapon systems
US4308681A (en) * 1980-03-14 1982-01-05 Gorman Richard M Progressive ratchet rifling in a full gain twist
US5094169A (en) * 1989-10-10 1992-03-10 Evitts James E Cartridge for small arms
US6427373B1 (en) 1999-05-21 2002-08-06 Wil Schuemann Gun barrel rifling
US20050150413A1 (en) * 2003-12-12 2005-07-14 Lord Steven M. Firearms cartridge with rectangular, rounded oblong, or elliptical casing
US20060065260A1 (en) * 2004-05-06 2006-03-30 Robert Judson Barrel for paint-ball gun
US7441557B2 (en) * 2004-05-06 2008-10-28 Sjs Paintball, Lp Barrel for paint-ball gun
US10989507B2 (en) * 2019-01-29 2021-04-27 Mark Thompson Systems and methods for matching ogive twist and barrel twist
US20220163299A1 (en) * 2019-06-26 2022-05-26 Hermann Arthur WEIDEMANN A bullet
US11280599B2 (en) * 2019-12-10 2022-03-22 Chris Lee Billings Rifled barrel having a rifled and non-rifled portion

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