GB1173839A - Improvements in or relating to Cartridge Case Manufacture - Google Patents

Improvements in or relating to Cartridge Case Manufacture

Info

Publication number
GB1173839A
GB1173839A GB5919267A GB5919267A GB1173839A GB 1173839 A GB1173839 A GB 1173839A GB 5919267 A GB5919267 A GB 5919267A GB 5919267 A GB5919267 A GB 5919267A GB 1173839 A GB1173839 A GB 1173839A
Authority
GB
United Kingdom
Prior art keywords
cartridge case
mould
base
shell
plastics material
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
GB5919267A
Inventor
Paolo Mossi
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.)
M & G Mossi & Ghisolfi SpA
Original Assignee
M & G Mossi & Ghisolfi SpA
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 M & G Mossi & Ghisolfi SpA filed Critical M & G Mossi & Ghisolfi SpA
Priority to GB5919267A priority Critical patent/GB1173839A/en
Publication of GB1173839A publication Critical patent/GB1173839A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/5635—Mould integrated compression drive means

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1,173,839. Injection moulding. M. & G. MOSSI & GHISOLFI S.p.A. 29 Dec., 1967, No. 59192/67. Heading B5A. A cartridge case of plastics material, e.g. polyethylene, and comprising an integral tubular portion 2 and base portion 3 with an axial bore, is injection moulded within a mould shell 13 having a core 12 and base 14 with injection nozzles 15; in order to increase the mechanical strength of the base portion 3 a compression force is applied to it while the plastics material is in fluid condition. The force is applied by a piston 18 with a lower head 19 urged downwardly by a fluid-operated ram 24 acting through a spacer 22 and an axially adjustable upper head 20. After the moulding-operation the upper and lower plates 6 and 10 are separated from the plate 8 to separate the mould core and base from the mould shell, whereupon the cartridge case is expelled from the shell by compressed air fed through a conduit 17. The apparatus has a number of mould shells to produce a plurality of such cartridge cases simultaneously.
GB5919267A 1967-12-29 1967-12-29 Improvements in or relating to Cartridge Case Manufacture Expired GB1173839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5919267A GB1173839A (en) 1967-12-29 1967-12-29 Improvements in or relating to Cartridge Case Manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5919267A GB1173839A (en) 1967-12-29 1967-12-29 Improvements in or relating to Cartridge Case Manufacture

Publications (1)

Publication Number Publication Date
GB1173839A true GB1173839A (en) 1969-12-10

Family

ID=10483262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5919267A Expired GB1173839A (en) 1967-12-29 1967-12-29 Improvements in or relating to Cartridge Case Manufacture

Country Status (1)

Country Link
GB (1) GB1173839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241663A (en) * 1990-03-06 1991-09-11 Takata Corp Moulding a vehicle air bag cover, incorporating a tear line groove for air bag release

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241663A (en) * 1990-03-06 1991-09-11 Takata Corp Moulding a vehicle air bag cover, incorporating a tear line groove for air bag release
FR2659267A1 (en) * 1990-03-06 1991-09-13 Takata Corp METHOD FOR MANUFACTURING A MODULAR COVER FOR INFLATABLE BALLOON FOR PROTECTION AGAINST COLLISIONS.
US5149479A (en) * 1990-03-06 1992-09-22 Takata Corporation Method of manufacturing modular cover of air bag
GB2241663B (en) * 1990-03-06 1993-09-22 Takata Corp Method of manufacturing modular cover of air bag

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees