US1887989A - Shotgun cartridge - Google Patents

Shotgun cartridge Download PDF

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Publication number
US1887989A
US1887989A US495504A US49550430A US1887989A US 1887989 A US1887989 A US 1887989A US 495504 A US495504 A US 495504A US 49550430 A US49550430 A US 49550430A US 1887989 A US1887989 A US 1887989A
Authority
US
United States
Prior art keywords
shot
pellet
charge
tracer
composition
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
Application number
US495504A
Other languages
English (en)
Inventor
Brownsdon Henry Winder
Nimmo Walter Rule
Pollitt George Paton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US1887989A publication Critical patent/US1887989A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type

Definitions

  • the invention relates to shot gun shells or cartridges, and more particularly to tracing pellets employed in such cartridges for indicating the direction of flight of the shot when a shot gun cartridge is fired.
  • fiat-nosed pellets centre better than round-nose pellets, and that by placing the pellet in direct contact with the driving wad or undershot disc of the shot gun cartridge, the pellet is positively driven along the ax s of the cartridge.
  • the primary object of the present invention is accordingly to provide improved means whereby on the firing of a shot gun cartridge the shooter will be able visually to follow the path or direction in which substantially the whole of the shots or pellets are travelling and thus have guidance to aid him in the aiming of the gun for the hitting of any desired object.
  • the invention consists in a shot gun tracer cartridge including in a hollow container or pellet a heavily pressed tracer composition primed with a more readily ignita-ble composition by the medium of which the heavily pressed tracer composition is ignited, the tracer composition consisting for example of a mixture of magnesium powder and barium peroxide, the priming composition consisting for example of a less heavily pressed composition of the same nature, or a composition sensitive to shock or friction such as, for instancea mixture of mercury fulminate, potassium chlorate, and antimony sulphide.
  • the invention also consists in a shot gun tracer cartridge according to the preceding paragraph in which the tracer pellet is positioned centrally and at the base of the shot charge and in direct contact with the driving wad or undershot disc of the shot gun cartridge.
  • the invention also consists in the tracer shot gun cartridges substantially as herein described.
  • the cartridge comprises the usual case a, percussion cap 6, powder charge 0, disc d, wad 6, disc f, shot charge 9 and disc k.
  • a tracer pellet indicated as a whole by the reference letter 2' this being located in the example shown, about the longitudinal axis of the cartrid e by means of a comparatively thick disc f with a central perforation, the clearance between which and the tracer pellet is somewhat exaggerated in the drawing for the sake of clearness.
  • the open end of the tracer pellet i communicates with an aperture j in the wad e and an aperture 70 in the disc (Z with the powder charge 0.
  • the tracer pellet i is formed as shown in Figure 2 but inserted in an inverted position.
  • the tracer pellet consists of a copper shell Z containing lead m for the purpose of weighting it, some compressed magnesium and barium peroxide mixture 71. and some comparatively lightly pressed magnesium and barium peroxide mixture 0.
  • the lightly pressed composition 0 may be held in place in any suitable Way, for example by means of a light celluloid disc (not shown) above it or by means of a thin layer of varnish.
  • the positioning of the tracer pellet centrally and at the base of the shot charge is of great importance if the tracer pellet is to a tracer pellet to an enpattern centrally relative to the small shot. In other words the haphazard introduction of a tracer pellet into the shot charge will not pattern centrally and therefore will not give a true indication of the flight of the shot column.
  • the tracer composition which we employ is one which is light producing as distinct from smoke producing.
  • the invention is not limited to the particular indicating compositions.
  • the lightly pressed priming charge of the barium peroxide and magnesium mixture referred to above is replaced by a sensitive composition such as one containing mercury fulminate, potassium chlorate, and antimony sulphide, as used for the priming of percussion caps, then ignition of the tracer composition may be brought about even in the absence of a communicating channel through the wads.
  • the tracer pellet should be so positioned that some of the small shot in the shot charge may function as anvils for the ignition of the sensitive priming composition.
  • the tracer pellet may be placed mouth upwards at the base of the shot charge instead of mouth downwards as is the case when the pellet is ignited through a communicating channel made in the wads.
  • a tracer pellet for indicating the path of the shot comprising a small cylinder containing the tracing composition, which cylinder is closed at one end and open at the other,
  • a tracer pellet containing a charge of highly compressed tracing composition and a superposed charge of priming composition, the latter composition being recessed into the tracing composition so as to provide an extended surface for ignition.
  • a shot gun cartridge comprising a shell containing a powder charge, a shot charge, and driving wad-ding interposed between the powder charge and the shot charge, said wadding having an opening therein in the direction of the shot charge, a tracer pellet seated in said opening but spaced laterally from the walls thereof, one end of said pellet resting upon said wadding and the other end contacting with said shot charge whereby the pellet is positively driven by the wadding and is accurately centered in the midst of the flying shot.
  • a shot gun cartridge comprising a shell ee'aeee containing a powder charge, a shot charge, and a plurality of driving wads interposed between the powder charge and the shot charge, the foremost wad having a central cylindrical opening therein in the direction of the shot charge and a rearward wad having therein leading to the powder charge, the

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US495504A 1930-02-12 1930-11-13 Shotgun cartridge Expired - Lifetime US1887989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24156/29A GB354718A (en) 1930-02-12 1930-02-12 Improvements in and relating to shot gun cartridges

Publications (1)

Publication Number Publication Date
US1887989A true US1887989A (en) 1932-11-15

Family

ID=10207264

Family Applications (1)

Application Number Title Priority Date Filing Date
US495504A Expired - Lifetime US1887989A (en) 1930-02-12 1930-11-13 Shotgun cartridge

Country Status (5)

Country Link
US (1) US1887989A (en(2012))
BE (1) BE375974A (en(2012))
DE (1) DE588475C (en(2012))
FR (1) FR710137A (en(2012))
GB (2) GB354718A (en(2012))

Cited By (8)

* Cited by examiner, † Cited by third party
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
US5429054A (en) * 1991-04-18 1995-07-04 Topping; Richard E. 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

Cited By (11)

* Cited by examiner, † Cited by third party
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
US5429054A (en) * 1991-04-18 1995-07-04 Topping; Richard E. Tracer cartridges
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
US7174833B2 (en) * 2000-06-09 2007-02-13 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
GB364282A (en) 1932-01-07
FR710137A (fr) 1931-08-19
GB354718A (en) 1931-08-12
BE375974A (en(2012))
DE588475C (de) 1933-11-23

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