GB190918320A - Improvements relating to the Manufacture of Closed-end Tubes for use as Blasting-caps and the like. - Google Patents

Improvements relating to the Manufacture of Closed-end Tubes for use as Blasting-caps and the like.

Info

Publication number
GB190918320A
GB190918320A GB190918320DA GB190918320A GB 190918320 A GB190918320 A GB 190918320A GB 190918320D A GB190918320D A GB 190918320DA GB 190918320 A GB190918320 A GB 190918320A
Authority
GB
United Kingdom
Prior art keywords
blasting
closed
caps
plunger
manufacture
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
Inventor
Leslie Edwin Hooker
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190918320A publication Critical patent/GB190918320A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/36—Making hollow objects characterised by the use of the objects collapsible or like thin-walled tubes, e.g. for toothpaste

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

18,320. Hooker, L. E. Aug. 9. Cupping.-Closed-end tubes used as blasting- caps &c. are made by forcing the end of a thin seamless copper tube into a grooved or fluted plunger 11 which forms the base of a die 10, by means of a shouldered plunger 12. The bottom of the tube is thus fluted as shown in Fig. 3, and is then pressed into a smooth hole 15 in the die, by a smooth-ended plunger 16, where it assumes the shape shown in Fig. 5. The end, although not actually welded, is tightly closed, but readily opens outwardly to internal pressure so as to explode the dynamite in the blasting-cartridge.
GB190918320D 1909-08-09 1909-08-09 Improvements relating to the Manufacture of Closed-end Tubes for use as Blasting-caps and the like. Expired GB190918320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190918320T 1909-08-09

Publications (1)

Publication Number Publication Date
GB190918320A true GB190918320A (en) 1910-02-17

Family

ID=32444939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190918320D Expired GB190918320A (en) 1909-08-09 1909-08-09 Improvements relating to the Manufacture of Closed-end Tubes for use as Blasting-caps and the like.

Country Status (1)

Country Link
GB (1) GB190918320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421629A (en) * 1943-02-10 1947-06-03 Otto A Langos Method for closing the ends of metal tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421629A (en) * 1943-02-10 1947-06-03 Otto A Langos Method for closing the ends of metal tubes

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