GB793685A - Machine for moulding shell-cases and like containers - Google Patents

Machine for moulding shell-cases and like containers

Info

Publication number
GB793685A
GB793685A GB36691/56A GB3669156A GB793685A GB 793685 A GB793685 A GB 793685A GB 36691/56 A GB36691/56 A GB 36691/56A GB 3669156 A GB3669156 A GB 3669156A GB 793685 A GB793685 A GB 793685A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
bag
stamping
turret
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
GB36691/56A
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.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont SA
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 Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Publication of GB793685A publication Critical patent/GB793685A/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
    • B21D51/54—Making hollow objects characterised by the use of the objects cartridge cases, e.g. for ammunition, for letter carriers in pneumatic-tube plants
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B21D22/12—Stamping using yieldable or resilient pads using enclosed flexible chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

793,685. Making shell cases and like containers; stamping. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Nov. 30, 1956 [March 9, 1956] No. 36691/56. Classes 83 (2) and 83 (4). A machine for stamping shell-cases and other containers comprises an hydraulic unit including an inflatable bag or bladder for insertion in a container, a cylinder and piston for inflating the bag and effecting the stamping of the container by a high-pressure impulse, the hydraulic unit being operated at high speed by dropping a weight on the piston and arranged in such a manner as to co-operate successively with a plurality of interchangeable dies. The machine comprises a rotatable turret 1 containing dies 3a, 3b, 3c, the crown portion of each being tapered internally and provided with slits 32 for enabling air to escape from the die cavity during the stamping operation. The hydraulic unit comprises a cylinder 4, a piston 5 and an inflatable rubber bag 6 attached to the cylinder 4. A tubular stem 7 provided with orifices 8 is also attached to the cylinder and extends into the bag. At its lower end the stem 7 has a slidable head 9 attached to the bag by a disc 10. The hydraulic unit is guided for reciprocable movement and means are provided for indexing the unit with the dies of the rotatable turret. When the reciprocable piston is in the upper position in the cylinder 4 a groove 41 is uncovered which communicates with a fluid reserve cavity 42 vented to atmosphere which accumulates any fluid leakage between the piston and cylinder. The normal level of the fluid, e.g. glycerine, in the unit is indicated at 44 in the reserve cavity. A weight 11 guided on columns 12 and operated as disclosed in prior Specification 725,854 applies the working stroke to the piston 5. Hydraulic shockabsorbers 15 prevent excessive travel of the weight 11. In operation, an unformed shellcase is placed in the die 3b of the turret and the turret rotated to index the shell-case under the hydraulic unit to effect the stamping operation. Further rotation of the turret brings the formed shell-case under an ejector 18 and a new shellcase under the hydraulic forming unit. Specification 726,618 also is referred to.
GB36691/56A 1956-03-09 1956-11-30 Machine for moulding shell-cases and like containers Expired GB793685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR793685X 1956-03-09

Publications (1)

Publication Number Publication Date
GB793685A true GB793685A (en) 1958-04-23

Family

ID=9233701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36691/56A Expired GB793685A (en) 1956-03-09 1956-11-30 Machine for moulding shell-cases and like containers

Country Status (2)

Country Link
FR (1) FR1145599A (en)
GB (1) GB793685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2004796A (en) * 1977-09-30 1979-04-11 Hinapat Ag Manufacturing tube-blanks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2004796A (en) * 1977-09-30 1979-04-11 Hinapat Ag Manufacturing tube-blanks

Also Published As

Publication number Publication date
FR1145599A (en) 1957-10-28

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