US1678162A - Cartridge - Google Patents

Cartridge Download PDF

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Publication number
US1678162A
US1678162A US11055926A US1678162A US 1678162 A US1678162 A US 1678162A US 11055926 A US11055926 A US 11055926A US 1678162 A US1678162 A US 1678162A
Authority
US
United States
Prior art keywords
cartridge
case
ceresin
coating
solution
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
Other languages
English (en)
Inventor
John D Pedersen
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.)
Individual
Original Assignee
Individual
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
Priority to BE350427D priority Critical patent/BE350427A/xx
Application filed by Individual filed Critical Individual
Priority to US11055926 priority patent/US1678162A/en
Priority to FR652332D priority patent/FR652332A/fr
Application granted granted Critical
Publication of US1678162A publication Critical patent/US1678162A/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
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
    • F42B5/295—Cartridge cases of metal, i.e. the cartridge-case tube is of metal coated
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31714—Next to natural gum, natural oil, rosin, lac or wax

Definitions

  • This invention relates to improvements in cartridges for fire arms and a method of rendering the same more durable and serviceable.
  • the invent-ion aims to improve a cartridge in two main respects: first, to provide a weatherproof protective coat-ing for the cartridge which will enable "it to be stored without deterioration for longer periods of time than heretofore; and second, to provide a means of lubrication for the cartridge to facilitate its extraction from the chamber of the fire arm when fired
  • a protective coating for the cartridge one of the principal causes for deterioration of cartridges in storage is that they are subject to what is known as season crackinglf By this it is meant that the metal case or shell of the cartridge after a time will develop a break or crack which usually starts around the thinnest part of the metal at the mouth or neck of the case and works backwardly toward the base.
  • the means for lubrication are provided on the cartridge when manufactured, which both simplifies the solution of the problem and also requires no cooperation from the user of the gun.
  • a properly selected hard wax may serve both for the protective covering for the cartridge above mentioned and also when the cartridge is fired it will be melted by the heat and pressure so as to serve as a lubricant in rendering the extraction of the empty case easy and uniform.
  • ceresin a refined product of ozokerite; but I wish to have it understood, of course, that other waxes having similar qualities may exist which might serve equally well.
  • Someof the characteristics of ceresin which render it so desirable for the purposes in view are that it is hard and non-tacky at normal temperatures, melting somewhere between C. to 80 C. and therefore will not soften or melt under any weather condition to which it is subjected, even that of extreme tropical heat. It is chemically stable to the action of most reagents, at least such as are found in the atmosphere.
  • Fig. 1 illustrates a complete cartridge, half in section'and half in elevation.
  • a thin coating of hard Wax preferably ceresin as indicated at 8. It will be understood that the drawing necessarily exaggerates the thickness of said Wax coating 8 in order to illustrate the same. In actual practice, the
  • the coating is less than a thousandth of an inch thick.
  • the thickness of the coating should preferably be thin enough so as not to appreciably modify the gauging or fit of the cartridge in the chamber. It is not so essential that the coating cover the base of the cartridgs, but it is desirable that it should cover and envelop the mouth, neck and shoulder of the case and adjacent portions at which places season cracking first appears.
  • the coating may with advantage seal the joint between the mouth of the case and the bullet to prevent the intrusion of moisture thereat.
  • the cartridge may be dipped in a bath of the same, bullet end down, so as to immerse the same up to a point adjacent the base of the cartridge, thus en veloping substantially all of the cartridge except the base.
  • This dipping causes a thin film of wax solution to adhere to the cartridge and upon Withdrawal of the latter the film Will quickly dry and harden due to the rapid evaporation of the solvent. If it is desirable to accelerate the drying and hardening of the film, an air blast may be employed.
  • the thickness of the hardened film which finally dries upon the cartridge will depend principally upon the percentage of Wax in the solution but, of course, this thickness may also be increased by repeated dippings and hardening operations.
  • I preferably dip the cartridge once for a very short time in a 7% solution of ceresin in carbon tetrachloride; that is, the ceresin forms but 7% of the liquid bath.
  • the temperature of the bath solution is maintained preferably at approximately C.
  • a cartridge comprising a case of drawn metal coated With an extremely thin film of hardened ceresin, adapted both as a protective covering for said case against a corrosion and for lubrication of said'case, said coating film being the air dried product rev sulting from an application to said case of a solution of ceresin in carbon tetrachloride.
  • a cartridge comprising a case of drawn metal coated with an extremely thin film of hardened ceresin, adapted both as a protective covering for said case against cor-' rosion and for lubrication of said case, said coating film'being the air dried product resulting from an application to said case of a solution of ceresin in carbon tetrachloride, the concentration of said solution being approximately 7% ceresin at a temperature. of said solution of approximately 50 C.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US11055926 1926-05-20 1926-05-20 Cartridge Expired - Lifetime US1678162A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE350427D BE350427A (fr) 1926-05-20
US11055926 US1678162A (en) 1926-05-20 1926-05-20 Cartridge
FR652332D FR652332A (fr) 1926-05-20 1928-04-06 Perfectionnements aux cartouches et procédé pour leur revêtement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11055926 US1678162A (en) 1926-05-20 1926-05-20 Cartridge

Publications (1)

Publication Number Publication Date
US1678162A true US1678162A (en) 1928-07-24

Family

ID=22333676

Family Applications (1)

Application Number Title Priority Date Filing Date
US11055926 Expired - Lifetime US1678162A (en) 1926-05-20 1926-05-20 Cartridge

Country Status (3)

Country Link
US (1) US1678162A (fr)
BE (1) BE350427A (fr)
FR (1) FR652332A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774684A (en) * 1953-06-12 1956-12-18 Montgomery H A Co Method and apparatus for applying lubricants to sheet metal
US3942408A (en) * 1972-09-21 1976-03-09 Du-Kote Corporation Method of treating and producing improved ammunition
US4465883A (en) * 1982-08-12 1984-08-14 Olin Corporation Bullet lubricant and method of coating bullets with said lubricant to reduce the leading effect thereof on the bores of firearms
US5907121A (en) * 1995-12-13 1999-05-25 Fritze; Wolfhart Blank cartridge for firearms
US6209459B1 (en) * 1998-01-16 2001-04-03 Blount, Inc. Method for etching characters on bullets and bullets made by the method
US6672219B2 (en) * 2002-01-04 2004-01-06 Tti Armory, L.L.C. Low observable ammunition casing
USD813975S1 (en) * 2015-08-05 2018-03-27 Mark White Low volume subsonic bullet cartridge case
US11009328B1 (en) * 2017-08-07 2021-05-18 Harry Arnon Ammunition case mouth sealing system and related method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054880B (de) * 1954-03-11 1959-04-09 Veedol Ges Mit Beschraenkter H Verfahren zum Aufbringen eines aus synthetischen Hartwachsen bestehenden Gleitmittels auf Patronenhuelsen, Geschosshuelsen od. dgl. aus Stahl

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774684A (en) * 1953-06-12 1956-12-18 Montgomery H A Co Method and apparatus for applying lubricants to sheet metal
US3942408A (en) * 1972-09-21 1976-03-09 Du-Kote Corporation Method of treating and producing improved ammunition
US4465883A (en) * 1982-08-12 1984-08-14 Olin Corporation Bullet lubricant and method of coating bullets with said lubricant to reduce the leading effect thereof on the bores of firearms
US5907121A (en) * 1995-12-13 1999-05-25 Fritze; Wolfhart Blank cartridge for firearms
US6209459B1 (en) * 1998-01-16 2001-04-03 Blount, Inc. Method for etching characters on bullets and bullets made by the method
US6672219B2 (en) * 2002-01-04 2004-01-06 Tti Armory, L.L.C. Low observable ammunition casing
USD813975S1 (en) * 2015-08-05 2018-03-27 Mark White Low volume subsonic bullet cartridge case
US11009328B1 (en) * 2017-08-07 2021-05-18 Harry Arnon Ammunition case mouth sealing system and related method

Also Published As

Publication number Publication date
BE350427A (fr) 1900-01-01
FR652332A (fr) 1929-03-06

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