US1887990A - Shotgun cartridge - Google Patents
Shotgun cartridge Download PDFInfo
- Publication number
- US1887990A US1887990A US512188A US51218831A US1887990A US 1887990 A US1887990 A US 1887990A US 512188 A US512188 A US 512188A US 51218831 A US51218831 A US 51218831A US 1887990 A US1887990 A US 1887990A
- Authority
- US
- United States
- Prior art keywords
- shot
- charge
- tracer
- pellet
- cartridge
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B7/00—Shotgun ammunition
- F42B7/02—Cartridges, i.e. cases with propellant charge and missile
- F42B7/04—Cartridges, i.e. cases with propellant charge and missile of pellet type
Definitions
- Our invention relates to shot gun cartridges containing a tracer pellet distinct from the ordinary charge of shot, which pellet is so arranged as to indicate the trajectory of the shot when the cartridge is fired.
- Fig. 1 is a sectional View showing One embodiment of our invention.
- Fig. 2 is a sectional view showing a modified form of the invention.
- the shot gun cartridge in accordance with our invention contains a tracer pellet which is positioned centrally at the base of the shot charge, and yet is substantially as free to move forward with the shot as the shot pellets themselves, and is thus capable of taking accurately a central path amongst the shot trajectories. This is accomplished by arranging that the tracer pellet sits loosely in a central perforation in the wad which is immediately behind the charge of shot.
- the perforation should be stepped as shown diagrammatically in Figure 1, where 1 is the shell of the cartridge, 2 the charge of powder, 4 the single wad having a perforation into which the tracer pellet, 6, sits loosely, this perforation being stepped so as to be narrower behind the tracer pellet (as shown at 3) and to provide a seat, 7, for the tracer pellet.
- the shot charge is indicated at 8.
- a plurality of wads is used, that or those nearest the shot charge being perforated centrally so as to hold the tracer pellet loosely in positwo wads, 9 and 10, is shown in Figure 2.
- the tracer pellet need not be greatly larger than the shot pellets.
- the clearance shown between the tracer pellet and the walls 55 of the perforation in the wad must be such that the pellet is held in position substantially without friction and can move freely forward independently of the wad.
- the smaller perforation may be of any convenient dimensions provided that it is smaller in diameter than the tracer pellet, and preferably the difference in diameter between the larger perforation and the smaller one should be greater than the diameter clearance between tracer pellet and larger perforation.
- the tracer pellet is preferably of a type which produces a bright light, but a smokeproducing pellet may be used if desired. It contains a lightor smoke-producing composition, e. g. a mixture of magnesium powder and an oxidizing agent such as barium peroxide, preferably highly compressed, together with a priming composition, which may be of similar nature but packed loosely so as to be easily ignited by the gases from the powder charge.
- a lightor smoke-producing composition e. g. a mixture of magnesium powder and an oxidizing agent such as barium peroxide, preferably highly compressed, together with a priming composition, which may be of similar nature but packed loosely so as to be easily ignited by the gases from the powder charge.
- a shot gun cartridge comprising a shell containing a powder charge, a shot charge, and a driving wad interposed between the powder charge and the shot charge, said wad having a cylindrical opening therein in the i direction of the shot charge and an opening of smaller diameter extending rearwardly from the larger opening to the powder charge, a tracer cartridgecomprising a small cylinder open at one end and closed at the other and seated in said larger opening, but spaced laterally from the Walls thereof, the open end of said cylinder being seated upon the driving Wad and directly over the passage leading to the powder charge, the closed end of the said tracer cartridge being in engagement With the shot charge.
Description
1932. H. w. BROWNSDON ET AL 11887390 SHOTGUN CARTRIDGE Filed Jan. 29, 1951 Fla. Fig. .2
wa m zy Patented Nov. 15, 1932 HENRY WINDER BROWNSDON, OF MOSELEY, BIRMINGHAM, AND WALTER R. NIMMO, OF SPARROWS HER NE HALL, BUSHEY HEATH, ENGLAND ASSIGNOBS T0 IIEPERIAL CHEMICAL INDUSTRIES LTD., A CORPORATION OF GB-EAT BRITAIN V SHOTGUN CARTRIDGE Application filed January 29, 1931.
Our invention relates to shot gun cartridges containing a tracer pellet distinct from the ordinary charge of shot, which pellet is so arranged as to indicate the trajectory of the shot when the cartridge is fired.
Fig. 1 is a sectional View showing One embodiment of our invention.
Fig. 2 is a sectional view showing a modified form of the invention.
In U. S. Specification No. 1,457,337 to Earle M. Barrows there is described and claimed a tracer cartridge of this type.
Our researches have shown that a correct mean trajectory is only indicated by the tracer pellet when certain conditions are fulfilled, and it is the object of our invention to provide a shot gun tracer cartridge fulfilling these conditions, and hence capable of registering with considerable accuracy the correct mean trajectory of the charge of shot.
The shot gun cartridge in accordance with our invention contains a tracer pellet which is positioned centrally at the base of the shot charge, and yet is substantially as free to move forward with the shot as the shot pellets themselves, and is thus capable of taking accurately a central path amongst the shot trajectories. This is accomplished by arranging that the tracer pellet sits loosely in a central perforation in the wad which is immediately behind the charge of shot. If a single wad is used the perforation should be stepped as shown diagrammatically in Figure 1, where 1 is the shell of the cartridge, 2 the charge of powder, 4 the single wad having a perforation into which the tracer pellet, 6, sits loosely, this perforation being stepped so as to be narrower behind the tracer pellet (as shown at 3) and to provide a seat, 7, for the tracer pellet. The shot charge is indicated at 8.
In another embodiment of our invention a plurality of wads is used, that or those nearest the shot charge being perforated centrally so as to hold the tracer pellet loosely in positwo wads, 9 and 10, is shown in Figure 2.
Serial No. 512,188.
tion, whilst the wad or wads towards the rear have a smaller perforation connecting with the charge of powder and provide a seat for the tracer pellet. An arrangement having The figures are merely diagrammatic and are not drawn to scale. In practice, for instance, the tracer pellet need not be greatly larger than the shot pellets. The clearance shown between the tracer pellet and the walls 55 of the perforation in the wad must be such that the pellet is held in position substantially without friction and can move freely forward independently of the wad. The smaller perforation may be of any convenient dimensions provided that it is smaller in diameter than the tracer pellet, and preferably the difference in diameter between the larger perforation and the smaller one should be greater than the diameter clearance between tracer pellet and larger perforation.
The tracer pellet is preferably of a type which produces a bright light, but a smokeproducing pellet may be used if desired. It contains a lightor smoke-producing composition, e. g. a mixture of magnesium powder and an oxidizing agent such as barium peroxide, preferably highly compressed, together with a priming composition, which may be of similar nature but packed loosely so as to be easily ignited by the gases from the powder charge.
As many apparently widely different embodiments of this invention may be made without departing from the spirit and scope thereof, it is to be understood that we do not limit ourselves to the specific embodiments thereof except as defined in the appended patent claims.
We claim:
A shot gun cartridge comprising a shell containing a powder charge, a shot charge, and a driving wad interposed between the powder charge and the shot charge, said wad having a cylindrical opening therein in the i direction of the shot charge and an opening of smaller diameter extending rearwardly from the larger opening to the powder charge, a tracer cartridgecomprising a small cylinder open at one end and closed at the other and seated in said larger opening, but spaced laterally from the Walls thereof, the open end of said cylinder being seated upon the driving Wad and directly over the passage leading to the powder charge, the closed end of the said tracer cartridge being in engagement With the shot charge.
In testimony whereof We aflix our signatures.
HENRY WINDER BROWNSDON.
WALTER R. NIMMO.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US512188A US1887990A (en) | 1931-01-29 | 1931-01-29 | Shotgun cartridge |
BE385607D BE385607A (en) | 1931-01-29 | 1932-01-12 | |
FR730726D FR730726A (en) | 1931-01-29 | 1932-01-29 | Improvements to shot-loaded cartridges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US512188A US1887990A (en) | 1931-01-29 | 1931-01-29 | Shotgun cartridge |
Publications (1)
Publication Number | Publication Date |
---|---|
US1887990A true US1887990A (en) | 1932-11-15 |
Family
ID=24038062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US512188A Expired - Lifetime US1887990A (en) | 1931-01-29 | 1931-01-29 | Shotgun cartridge |
Country Status (3)
Country | Link |
---|---|
US (1) | US1887990A (en) |
BE (1) | BE385607A (en) |
FR (1) | FR730726A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3262390A (en) * | 1964-05-29 | 1966-07-26 | Olin Mathieson | Tracer shotshell |
US4389939A (en) * | 1980-03-28 | 1983-06-28 | Hiroshi Ofuji | Shotgun cartridge |
US4694755A (en) * | 1986-04-09 | 1987-09-22 | Esperanza Y Cia, S.A. | Shell for firing practice |
US4841866A (en) * | 1989-02-02 | 1989-06-27 | Miesner Delbert W | Tracer shotgun shell |
WO1992018827A1 (en) * | 1991-04-18 | 1992-10-29 | Ace Trace Cartridges Limited | Improvements in tracer cartridges |
US20050056184A1 (en) * | 2003-09-05 | 2005-03-17 | Dunnam James Alfred | Ballistic tracer platform for shotgun ammunition |
US20050188882A1 (en) * | 2000-06-09 | 2005-09-01 | Diller E. W. | Shotgun shell flight path indicator |
US7174833B2 (en) * | 2000-06-09 | 2007-02-13 | Diller E Wendell | Shotgun shell flight path indicator |
US20090260535A1 (en) * | 2005-12-09 | 2009-10-22 | Kimmo Martikainen | Shotgun Cartridge for Shotgun Shooting and Method in Shotgun Shooting |
US10436559B1 (en) | 2017-05-08 | 2019-10-08 | D&S Comet Shotgun Tracers Llc | Tracer insert and tracer shell incorporating same |
-
1931
- 1931-01-29 US US512188A patent/US1887990A/en not_active Expired - Lifetime
-
1932
- 1932-01-12 BE BE385607D patent/BE385607A/xx unknown
- 1932-01-29 FR FR730726D patent/FR730726A/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3262390A (en) * | 1964-05-29 | 1966-07-26 | Olin Mathieson | Tracer shotshell |
US4389939A (en) * | 1980-03-28 | 1983-06-28 | Hiroshi Ofuji | Shotgun cartridge |
US4694755A (en) * | 1986-04-09 | 1987-09-22 | Esperanza Y Cia, S.A. | Shell for firing practice |
US4841866A (en) * | 1989-02-02 | 1989-06-27 | Miesner Delbert W | Tracer shotgun shell |
WO1992018827A1 (en) * | 1991-04-18 | 1992-10-29 | Ace Trace Cartridges Limited | Improvements in tracer cartridges |
US5429054A (en) * | 1991-04-18 | 1995-07-04 | Topping; Richard E. | Tracer cartridges |
US7174833B2 (en) * | 2000-06-09 | 2007-02-13 | Diller E Wendell | Shotgun shell flight path indicator |
US20050188882A1 (en) * | 2000-06-09 | 2005-09-01 | Diller E. W. | Shotgun shell flight path indicator |
US7171904B2 (en) * | 2000-06-09 | 2007-02-06 | Diller E Wendell | Shotgun shell flight path indicator |
US20050056184A1 (en) * | 2003-09-05 | 2005-03-17 | Dunnam James Alfred | Ballistic tracer platform for shotgun ammunition |
US7228801B2 (en) * | 2003-09-05 | 2007-06-12 | James Alfred Dunnam | Ballistic tracer platform for shotgun ammunition |
US20090260535A1 (en) * | 2005-12-09 | 2009-10-22 | Kimmo Martikainen | Shotgun Cartridge for Shotgun Shooting and Method in Shotgun Shooting |
US7836828B2 (en) * | 2005-12-09 | 2010-11-23 | Kimmo Martikainen | Shotgun cartridge for shotgun shooting and method in shotgun shooting |
US10436559B1 (en) | 2017-05-08 | 2019-10-08 | D&S Comet Shotgun Tracers Llc | Tracer insert and tracer shell incorporating same |
Also Published As
Publication number | Publication date |
---|---|
FR730726A (en) | 1932-08-20 |
BE385607A (en) | 1932-02-29 |
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