GB530611A - Improvements in or relating to blasting cartridges and method of production thereof - Google Patents

Improvements in or relating to blasting cartridges and method of production thereof

Info

Publication number
GB530611A
GB530611A GB18867/39A GB1886739A GB530611A GB 530611 A GB530611 A GB 530611A GB 18867/39 A GB18867/39 A GB 18867/39A GB 1886739 A GB1886739 A GB 1886739A GB 530611 A GB530611 A GB 530611A
Authority
GB
United Kingdom
Prior art keywords
cartridge
salt
sleeve
combustible
explosion
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
Application number
GB18867/39A
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.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
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 Hercules Powder Co filed Critical Hercules Powder Co
Publication of GB530611A publication Critical patent/GB530611A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/28—Cartridge cases characterised by the material used, e.g. coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Finger-Pressure Massage (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

530,611. Blasting cartridges. HERCULES POWDER CO. June 28, 1939, No. 18867. Convention date, Aug. 17, 1938. [Class 9 (i)] A blasting cartridge, especially for use in coal mines, is provided with a sheath comprising a compressible cushioning material to absorb the initial shattering of the explosion, and a flamequenching or cooling-salt to damp the flame and gas resulting from the explosion. The compressible material may be non-combustible, e.g. expanded mica pellets; or combustible, e.g. balsa, bagasse, or cork. The frame-quenching salt may consist of sodium bicarbonate, plaster of Paris, borax, or calcium fluoride. These ingredients may be moulded as a one-piece or split sleeve to fit around the cartridge ; or, the cooling-salt may be disposed between layers of the compressible material ; and, the sleeve may be corrugated to provide air-cushioning pockets. Further, the materials may be packed in the form of pellets or powder between the cartridge and an outer paper sleeve. Typical percentage mixtures of the materials are described in the Specification.
GB18867/39A 1938-08-17 1939-06-28 Improvements in or relating to blasting cartridges and method of production thereof Expired GB530611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US225342A US2277059A (en) 1938-08-17 1938-08-17 Blasting cartridge

Publications (1)

Publication Number Publication Date
GB530611A true GB530611A (en) 1940-12-16

Family

ID=22844501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18867/39A Expired GB530611A (en) 1938-08-17 1939-06-28 Improvements in or relating to blasting cartridges and method of production thereof

Country Status (2)

Country Link
US (1) US2277059A (en)
GB (1) GB530611A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499440A (en) * 1945-01-27 1950-03-07 Denver Fire Clay Company Sheath for explosives
CN107907012A (en) * 2017-11-29 2018-04-13 成都凯隆机械维修有限公司 Fracturing device sleeve with comfort cushioning effect

Also Published As

Publication number Publication date
US2277059A (en) 1942-03-24

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