US3392669A - Erosion reducer - Google Patents

Erosion reducer Download PDF

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Publication number
US3392669A
US3392669A US610698A US61069867A US3392669A US 3392669 A US3392669 A US 3392669A US 610698 A US610698 A US 610698A US 61069867 A US61069867 A US 61069867A US 3392669 A US3392669 A US 3392669A
Authority
US
United States
Prior art keywords
propellant
additives
additive
cartridge
pts
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
US610698A
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English (en)
Inventor
Jean P Picard
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.)
US Department of Army
Original Assignee
Army Usa
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 Army Usa filed Critical Army Usa
Priority to US610698A priority Critical patent/US3392669A/en
Priority to GB685/68A priority patent/GB1215401A/en
Priority to BE708978D priority patent/BE708978A/xx
Priority to CH18068A priority patent/CH525463A/fr
Priority to DE19681678211 priority patent/DE1678211B1/de
Priority to NL686800762A priority patent/NL146475B/xx
Priority to FR136747A priority patent/FR93891E/fr
Application granted granted Critical
Publication of US3392669A publication Critical patent/US3392669A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F42B5/24—Cartridges, i.e. cases with charge and missile for cleaning; for cooling; for lubricating ; for wear reducing
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/04—Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
    • 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
    • F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/704—Coolants

Definitions

  • FIGS. 3 and 4 are modified cartridges of FIG. 1.
  • the textile 16 for a 105 mm. high explosive anti-tank shell was a piece of rayon woven from spun viscose rayon yarn containing a durable water repellant of melamine resin base and weighed between 2.80 and 3.20 ounces per square yard.
  • the rayon was pl-aced on a smooth surface and my additives poured thereon and spread evenly by scraping with a blade and resulted in a sheet slightly under 1/16 inch in thickness. Determination of minimum sheet thickness can be readily computed for any calibre weapon from the formula aforementioned. In the case of impregnated polyurethane foams, the identical formula for calculating sheet thickness will be used.
  • the oxides used were of a particle size of about 1 to 60 microns and the Wax had a melting point of ⁇ about 180 F., unless otherwise indicated.
  • Example I 47 grams of kaolinite having a particle size ranging between 3 to 60 microns are stirred into 53 grams of melted paraffin wax having a melting point of 180 F. The resultant mixture was thoroughly mixed while maintaining the temperature at about 100 C. and then poured onto a piece of spun viscose rayon yarn of melamine resin base, the rayon yarn having been placed on a smooth surface. By means of a scraping blade, a uniform thickness of about 1/16 inch of additive wax was obtained. If desired, the melted additive wax mixture can readily be poured in molds of varying configurations.
  • nitrocellulose screened through an S-mesh screen and then placed in a mixer, such as a sigma blade type, for example, was added 2.5 percent by weight of talc and the required quantity of potassium sulfate and the whole mass dry blended for tive minutes. Then the solvent containing diphenylamine was added while the mixer was still running. The mixing operation was carried out for one hour with cold water running through the mixer jacket. The propellant composition was then removed from the mixer and stored in a tight container until time for extrusion into desired web sizes. All screen sizes hereinabove and hereinafter referred to were U.S. Standard Sieve type.
  • Example V Propellant formulation CR7814 aforedescribed containing various additives such as talc, feldspar, kaolin, kaolinite and related materials belonging to the silicates family in quantities varying from 1 to 5% of propellant formulation weight were processed in accordance with the following:

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Lubricants (AREA)
US610698A 1966-01-24 1967-01-20 Erosion reducer Expired - Lifetime US3392669A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US610698A US3392669A (en) 1966-01-24 1967-01-20 Erosion reducer
GB685/68A GB1215401A (en) 1966-01-24 1968-01-04 Projectile propellant device including an erosion reducing additive
BE708978D BE708978A (fr) 1966-01-24 1968-01-05
CH18068A CH525463A (fr) 1966-01-24 1968-01-08 Munition pour arme à feu
DE19681678211 DE1678211B1 (de) 1966-01-24 1968-01-13 Kartusche od.dgl.fuer Feuerwaffen
NL686800762A NL146475B (nl) 1966-01-24 1968-01-17 Patroon of granaat met erosieverminderende toeslag.
FR136747A FR93891E (fr) 1966-01-24 1968-01-19 Réducteur d'érosion.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52279666A 1966-01-24 1966-01-24
US610698A US3392669A (en) 1966-01-24 1967-01-20 Erosion reducer

Publications (1)

Publication Number Publication Date
US3392669A true US3392669A (en) 1968-07-16

Family

ID=27060941

Family Applications (1)

Application Number Title Priority Date Filing Date
US610698A Expired - Lifetime US3392669A (en) 1966-01-24 1967-01-20 Erosion reducer

Country Status (7)

Country Link
US (1) US3392669A (fr)
BE (1) BE708978A (fr)
CH (1) CH525463A (fr)
DE (1) DE1678211B1 (fr)
FR (1) FR93891E (fr)
GB (1) GB1215401A (fr)
NL (1) NL146475B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491690A (en) * 1968-01-10 1970-01-27 Verran Lane Knight Water boosted shotshell
USH18H (en) 1983-11-21 1986-02-04 The United States Of America As Represented By The Secretary Of The Army Reduction of erosion and muzzle flash of gun tubes
US5151557A (en) * 1991-07-01 1992-09-29 The United States Of America As Represented By The Secretary Of The Army Additive for propelling charge
US5463956A (en) * 1994-02-08 1995-11-07 Ici Americas Inc. Wear decoppering liner
EP0805943A1 (fr) * 1994-12-16 1997-11-12 Primex Technologies, Inc. Additif composite de decuivrage pour poudre
US6444062B2 (en) * 1999-02-23 2002-09-03 General Dynamics Ordnance & Tactical Systems, Inc. Perforated propellant and method of manufacturing same
US6984275B1 (en) 2003-02-12 2006-01-10 The United States Of America As Represented By The Secretary Of The Navy Reduced erosion additive for a propelling charge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193491B (en) * 1978-07-21 1988-09-14 Imi Kynoch Limited Kynoch Work Improvements in propellants
UA35271C2 (uk) * 1999-09-14 2001-07-16 Сергій Миколайович Александров Спосіб виготовлення зносостійкого ствола вогнепальної зброї

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148620A (en) * 1959-08-14 1964-09-15 Wegematic Corp Wear reduction additives
US3204588A (en) * 1961-08-11 1965-09-07 Deere & Co Herbicide dispenser
US3209689A (en) * 1956-11-14 1965-10-05 Mclennan Donald Elmore Reduction of gun barrel wear

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209689A (en) * 1956-11-14 1965-10-05 Mclennan Donald Elmore Reduction of gun barrel wear
US3148620A (en) * 1959-08-14 1964-09-15 Wegematic Corp Wear reduction additives
US3204588A (en) * 1961-08-11 1965-09-07 Deere & Co Herbicide dispenser

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491690A (en) * 1968-01-10 1970-01-27 Verran Lane Knight Water boosted shotshell
USH18H (en) 1983-11-21 1986-02-04 The United States Of America As Represented By The Secretary Of The Army Reduction of erosion and muzzle flash of gun tubes
US5151557A (en) * 1991-07-01 1992-09-29 The United States Of America As Represented By The Secretary Of The Army Additive for propelling charge
US5463956A (en) * 1994-02-08 1995-11-07 Ici Americas Inc. Wear decoppering liner
EP0805943A1 (fr) * 1994-12-16 1997-11-12 Primex Technologies, Inc. Additif composite de decuivrage pour poudre
EP0805943A4 (fr) * 1994-12-16 1998-04-29 Primex Tech Inc Additif composite de decuivrage pour poudre
US6444062B2 (en) * 1999-02-23 2002-09-03 General Dynamics Ordnance & Tactical Systems, Inc. Perforated propellant and method of manufacturing same
US6984275B1 (en) 2003-02-12 2006-01-10 The United States Of America As Represented By The Secretary Of The Navy Reduced erosion additive for a propelling charge

Also Published As

Publication number Publication date
FR93891E (fr) 1969-05-30
CH525463A (fr) 1972-07-15
BE708978A (fr) 1968-05-16
NL146475B (nl) 1975-07-15
DE1678211B1 (de) 1971-11-18
GB1215401A (en) 1970-12-09
NL6800762A (fr) 1968-07-22

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