GB470250A - Improvements in projectiles or bullets - Google Patents
Improvements in projectiles or bulletsInfo
- Publication number
- GB470250A GB470250A GB3433335A GB3433335A GB470250A GB 470250 A GB470250 A GB 470250A GB 3433335 A GB3433335 A GB 3433335A GB 3433335 A GB3433335 A GB 3433335A GB 470250 A GB470250 A GB 470250A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projectile
- rings
- bullet
- engage
- rifling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
470,250. Projectiles. COLEMAN, C. J. Dec. 11, 1935, Nos. 34333/35 and 22733/36. [Class 9 (i)] Pressure sealing means for a projectile or bullet comprises a plurality of smooth-faced rearwardly-directed annular flanges nested together with their adjacent surfaces in contact in such a manner that the pressure of the propellant when exploded acts upon the rear surface of the rearmost flange so as to urge the foremost flange or a part associated therewith into abutting or similar annular gastight relationship with a surface or surfaces on the projectile that maintains said flanges in a rotational plane at right-angles to the axis of the 'projectile, and to urge all the flanges into intimate sealing relationship with each other and one or more of them into intimate sealing contact with the interior of the gun barrel. Fig. 2 shows a construction in which a number of nested U-shaped copper rings c<1> are contained in a groove b<1> in the projectile a. If desired, alternate rings may be composed of asbestos &c., which may be impregnated with grease or graphite. The projectile may be adapted to engage the rifling in the barrel and the rings are distorted into said rifling to provide a seal, or, if the projectile does not engage the rifling, the rings may be cemented, as by cellulose cement, to the projectile and thereby communicate rotary motion from the rifling to it. According to modifications, the projectile may be provided with a number of grooves b<1> each containing a plurality of nested rings and each ring may be formed of two parts whose ends engage in lap joints so that, on leaving the gun, they are detached by centrifugal force and by the air-wash past the projectile. Fig. 5 shows a further construction in which the streamlined rear end h of a rifle bullet a<1> has mounted thereon a number of V-shaped rings c<4> which may be secured to the bullet by a temporary adhesive or held in place by the charge in the cartridge case d<1>. When the bullet is rotated solely by the engagement of the sealing means with the rifling, the inner flanges of the rings c<4> are provided with depressions or lugs which engage helical or longitudinal grooves in the end h of the bullet, whilst, in a further modification, Figs. 12 and 13 (not shown), the rings are replaced by cups having rearwardly-directed flanges that engage the gun barrel, the cups being provided with interengaging depressions that engage longitudinal grooves in the end of the bullet. Fig. 11 shows still a further modification in which the projectile a, which is furnished with the usual copper driving bands p, is provided with the flanged flat discs c<6> which may be secured to its flat rear end by a temporary adhesive or merely held in place by the charge. The sealing means, which may be cemented together by cellulose cement, may, in some cases, be formed of celluloid, slow-burning nitrocellulose, thin aluminium, magnesium or other material of such thickness, strength and perishability that it will sufficiently withstand the temperature and pressure when fired from a gun to effect the pressure seal and, where required, to rotate the bullet, but substantially to perish by burning or disintegration or both, shortly after leaving the gun.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3433335A GB470250A (en) | 1935-12-11 | 1935-12-11 | Improvements in projectiles or bullets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3433335A GB470250A (en) | 1935-12-11 | 1935-12-11 | Improvements in projectiles or bullets |
Publications (1)
Publication Number | Publication Date |
---|---|
GB470250A true GB470250A (en) | 1937-08-11 |
Family
ID=10364337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3433335A Expired GB470250A (en) | 1935-12-11 | 1935-12-11 | Improvements in projectiles or bullets |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB470250A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9200881B1 (en) | 2011-10-24 | 2015-12-01 | F. Richard Langner | Systems and methods for an improved firing assembly |
US9322625B1 (en) | 2011-10-24 | 2016-04-26 | F. Richard Langner | Systems and methods for launching water from a disrupter cannon |
US9453713B1 (en) | 2011-10-24 | 2016-09-27 | F. Richard Langner | Systems and methods for ammunition for a disrupter cannon |
WO2020261136A3 (en) * | 2019-06-26 | 2021-06-03 | Weidemann Hermann Arthur | A bullet |
-
1935
- 1935-12-11 GB GB3433335A patent/GB470250A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9200881B1 (en) | 2011-10-24 | 2015-12-01 | F. Richard Langner | Systems and methods for an improved firing assembly |
US9322625B1 (en) | 2011-10-24 | 2016-04-26 | F. Richard Langner | Systems and methods for launching water from a disrupter cannon |
US9453713B1 (en) | 2011-10-24 | 2016-09-27 | F. Richard Langner | Systems and methods for ammunition for a disrupter cannon |
WO2020261136A3 (en) * | 2019-06-26 | 2021-06-03 | Weidemann Hermann Arthur | A bullet |
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