US2665635A - Wad - Google Patents

Wad Download PDF

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Publication number
US2665635A
US2665635A US170724A US17072450A US2665635A US 2665635 A US2665635 A US 2665635A US 170724 A US170724 A US 170724A US 17072450 A US17072450 A US 17072450A US 2665635 A US2665635 A US 2665635A
Authority
US
United States
Prior art keywords
wad
shot
side wall
cartridge
wall
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
US170724A
Other languages
English (en)
Inventor
Morel Maurice Edmond
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.)
FR DES MUNITIONS DE CHASSE DE
FRANCAISE DES MUNITIONS DE CHASSE DE TIR ET DE GUERRE S A Ste
Original Assignee
FR DES MUNITIONS DE CHASSE DE
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 FR DES MUNITIONS DE CHASSE DE filed Critical FR DES MUNITIONS DE CHASSE DE
Application granted granted Critical
Publication of US2665635A publication Critical patent/US2665635A/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
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/08—Wads, i.e. projectile or shot carrying devices, therefor

Definitions

  • the present invention relates to cartridges including wads, that is to say pressure transmitting packing means interposed between the charge and the projectile, either simple or multiple.
  • the object of my invention is to improve the ballistic properties of these cartridges.
  • Fig. 1 is a side view, partly in axial section of a shotgun cartridge made according to my invention
  • Figs. 2 and 3 are axial sections of two modifications of a wad for a similar cartridge
  • Fig. 4 is an explanatory view illustrating the deformation undergone by the wad of the cartridge shown by Fig. 1.
  • the cartridge shown by Fig. 1 includes, in the usual fashion, a case I containing a charge 2 of powder and a projectile constituted by shot 3, with a wad 4 interposed between said charge and said shot.
  • this wad is constituted by a hollow element, of at least substantially cylindrical shape, the side wall of which is provided with one or, as shown by the drawing, several holes 5, for instance of circular outline, preferably located halfway between the ends of the wad.
  • a compressible wad which exerts a damping action on the transmission of the explosion to the mass of shot 3 due to the fact that, when the shot is fired, the wad is deformed and expels through orifices 5 the air enclosed therein.
  • This air which is compressed before being driven out, tends to apply the side wall of the wad against the inner wall of case I so that the powder charge 2 i more tightly separated from the shot charge 3.
  • this air has escaped through holes 5, to pass between wad 4 and case I, it constitutes a kind of film which facilitates sliding movement of the wad with respect to the case.
  • Such a wad further acts as a regulator of the pressure of the propelling gases due to the fact that the out-flow of air through holes 5 takes place proportionally to the value of this pressure and a suitable choice of the size of these holes makes it possible to obtain the most advantageous regulating effect.
  • Wad 4 may be made of cardboard, a light metal, a flexible plastic material (drawn, molded, etc.), or possibly a combination of these matters, which may be coated with protecting or lubricating products.
  • I may also fit the inside of the wad with an elastic fibrous material such for instance as glass fibre, or fibres of fiexible plastic materials, the moderating action of which is added to that of compressed air.
  • an elastic fibrous material such for instance as glass fibre, or fibres of fiexible plastic materials, the moderating action of which is added to that of compressed air.
  • wad isessentially constituted by a cylindrical wall 4 having inwardly bent ends against which are applied two discs 4a glued or merely placed on said tube ends.
  • the cylindrical wall 4 of the wad and one of the end walls ib thereof are constituted by a single stamped piece, for instance of a light metal, the other end wall 40 being fixed like a lid on the corresponding end of said piece, made of slightly smaller diameter.
  • both of the end walls 4d and 4c of the wad are secured to the tubular wall 4, for instance by gluing so as to cover the edges of said tubular wall, which are advantageously made of slightly smaller diameter.
  • Fig. 4 illustrates the working of the wad of Fig. 1 upon firing of the cartridge. It will be seen that the side wall of the wad is deformed in accordion-like fashion Whereas the end Walls curve inwardly. This double deformation causes a reduction of the inner volume of the wad, so that the air presen therein is driven out through hole 5.
  • the wad according to my invention is of light weight, simple to manufacture and moderates the acceleration when the shot is fired, so that the shot is less deformed and remains better grouped.
  • a cartridge wad including a cylindrical deformable side wall and substantially flat front and rear end walls limiting between them an air chamber, said side wall being provided with at least one hole connecting said air chamber with the outside of said side wall.
  • a cartridge wad according to claim 1 in which said cylindrical side wall has inwardly bent edges, said front and rear end wall being applied against said bent edges.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US170724A 1949-06-30 1950-06-28 Wad Expired - Lifetime US2665635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR834065X 1949-06-30

Publications (1)

Publication Number Publication Date
US2665635A true US2665635A (en) 1954-01-12

Family

ID=9296926

Family Applications (1)

Application Number Title Priority Date Filing Date
US170724A Expired - Lifetime US2665635A (en) 1949-06-30 1950-06-28 Wad

Country Status (5)

Country Link
US (1) US2665635A (en, 2012)
BE (1) BE496671A (en, 2012)
DE (1) DE834065C (en, 2012)
FR (1) FR1004596A (en, 2012)
GB (1) GB673572A (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127837A (en) * 1961-04-27 1964-04-07 Driaire Inc Shot shell construction
US20100101444A1 (en) * 2008-10-27 2010-04-29 Schluckebier David K Wad with ignition chamber
US20100192794A1 (en) * 2009-02-02 2010-08-05 R.A. Brands, L.L.C. Shotshell wad with shot confinement feature
US8800449B2 (en) 2008-10-27 2014-08-12 Ra Brands, L.L.C. Wad with ignition chamber

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB953734A (en, 2012) * 1960-06-21
US3115835A (en) * 1962-06-18 1963-12-31 Norman D Currie Undershot wad for shotgun shells
CN114643177A (zh) * 2022-03-17 2022-06-21 惠州市嘉源峰工艺制品有限公司 一种狩猎诱饵的植绒工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691802A (en) * 1926-01-13 1928-11-13 Cartoucherie Francaise Sa Wadding device for the cartridges of fowling pieces
US1908314A (en) * 1930-12-11 1933-05-09 Ici Ltd Shotgun cartridge wad
GB478030A (en) * 1935-12-21 1938-01-11 Henri Foch Wads for fire-arms
GB488819A (en) * 1937-07-26 1938-07-14 Arthur Wade Improvements in and relating to shot-gun cartridges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE389604A (en, 2012) * 1931-07-07
BE423760A (en, 2012) * 1936-09-26

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691802A (en) * 1926-01-13 1928-11-13 Cartoucherie Francaise Sa Wadding device for the cartridges of fowling pieces
US1908314A (en) * 1930-12-11 1933-05-09 Ici Ltd Shotgun cartridge wad
GB478030A (en) * 1935-12-21 1938-01-11 Henri Foch Wads for fire-arms
GB488819A (en) * 1937-07-26 1938-07-14 Arthur Wade Improvements in and relating to shot-gun cartridges

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127837A (en) * 1961-04-27 1964-04-07 Driaire Inc Shot shell construction
US20100101444A1 (en) * 2008-10-27 2010-04-29 Schluckebier David K Wad with ignition chamber
US8220393B2 (en) 2008-10-27 2012-07-17 Ra Brands, L.L.C. Wad with ignition chamber
US8800449B2 (en) 2008-10-27 2014-08-12 Ra Brands, L.L.C. Wad with ignition chamber
US9500453B2 (en) 2008-10-27 2016-11-22 Ra Brands, L.L.C. Wad with ignition chamber
US20100192794A1 (en) * 2009-02-02 2010-08-05 R.A. Brands, L.L.C. Shotshell wad with shot confinement feature
US8555785B2 (en) 2009-02-02 2013-10-15 Ra Brands, L.L.C. Shotshell wad with shot confinement feature

Also Published As

Publication number Publication date
DE834065C (de) 1952-03-17
FR1004596A (fr) 1952-03-31
GB673572A (en) 1952-06-11
BE496671A (en, 2012)

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