GB523948A - Improvements in the manufacture of tubes for heat-exchange apparatus - Google Patents

Improvements in the manufacture of tubes for heat-exchange apparatus

Info

Publication number
GB523948A
GB523948A GB171440A GB171440A GB523948A GB 523948 A GB523948 A GB 523948A GB 171440 A GB171440 A GB 171440A GB 171440 A GB171440 A GB 171440A GB 523948 A GB523948 A GB 523948A
Authority
GB
United Kingdom
Prior art keywords
tube
fluid
plug
pressure
closed
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
GB171440A
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.)
PERCY ST GEORGE KIRKE
Original Assignee
PERCY ST GEORGE KIRKE
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 PERCY ST GEORGE KIRKE filed Critical PERCY ST GEORGE KIRKE
Priority to GB171440A priority Critical patent/GB523948A/en
Publication of GB523948A publication Critical patent/GB523948A/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
    • 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
    • B21D22/125—Stamping using yieldable or resilient pads using enclosed flexible chambers of tubular products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

523,948. Making corrugated tubes; stamping. KIRKE, P. St. G. Jan. 17, 1939, Nos. 1714/40 (Divided out of 519,593) and 1712/40. [Classes 83 (ii) and 83 (iv)] Multiwave tubes as described in Specifications 388,227, 399,203 and 400,252, [all in Group XIII], are produced in dies by the direct application of internal fluid pressure. A tube 26 to be waved is enclosed between dies 10, 11 that may be hinged and closed hydraulically or through toggle mechanism prior to or at the same time as pressure fluid is admitted to the interior. For this purpose one end is closed by a plug 22 restrained by a detent 13 and the other by a plug 23 with detent 16. The plug 23 is hollow to admit the fluid which may act on the tube through a rubber tube 24 clamped in the plug 23 by a conical portion 25 of a tube 18 which may extend as a stiffener within the rubber tube. The clamping is effected by a gland 19 with lock nut 21. If the tubes have specially formed or expanded ends the plugs are shaped to fit these ends. In a modification the ends of the tube are closed by discs provided with cup leathers and connected by a tie-rod which may be wholly or in part hollow for the admission of pressure fluid. When hot pressing is employed the tube is filled with steam or other elastic fluid under pressure. In a further modification the tube is held on a base 39, formed to act as the lower die, by hinged members 31, 32. The member 32 has a yoke 36 that acts as an abutment for a plug 35 bored at 44 and fitted with an annular cup leather 43. The other end is plugged by a similarly packed member 37 held in place by a pin 40, and ported to admit fluid at 49, 48. The port 44 connects with the tube by a branch 46 to secure the expulsion of all air on admitting fluid at 49. When the tube is filled the pipe 45 is closed by a cock. The fluid may simply act as a filling or may be admitted at any pressure up to 1500 1b. per square inch during the waving the pressure being finally increased to 4500 1b. per square inch to remove any deformations.
GB171440A 1939-01-17 1939-01-17 Improvements in the manufacture of tubes for heat-exchange apparatus Expired GB523948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB171440A GB523948A (en) 1939-01-17 1939-01-17 Improvements in the manufacture of tubes for heat-exchange apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB171440A GB523948A (en) 1939-01-17 1939-01-17 Improvements in the manufacture of tubes for heat-exchange apparatus

Publications (1)

Publication Number Publication Date
GB523948A true GB523948A (en) 1940-07-25

Family

ID=9726740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB171440A Expired GB523948A (en) 1939-01-17 1939-01-17 Improvements in the manufacture of tubes for heat-exchange apparatus

Country Status (1)

Country Link
GB (1) GB523948A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696184A (en) * 1951-05-16 1954-12-07 Pastushin Aviat Corp Apparatus for forming hollow bodies
US2809602A (en) * 1952-07-16 1957-10-15 Forges Ateliers Const Electr Machine for setting and molding containers
US2949875A (en) * 1954-07-22 1960-08-23 Olin Mathieson Apparatus for forming hollow sheet metal panels
USRE33990E (en) * 1987-05-06 1992-07-14 Ti Corporate Services Limited Method of forming box-like frame members
US5481892A (en) * 1989-08-24 1996-01-09 Roper; Ralph E. Apparatus and method for forming a tubular member
US6502822B1 (en) 1997-05-15 2003-01-07 Aquaform, Inc. Apparatus and method for creating a seal on an inner wall of a tube for hydroforming
GR20010100360A (en) * 2001-07-24 2003-03-28 Μοδεστος Καλεργης System for the construction and shaping of elements of a pillar

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696184A (en) * 1951-05-16 1954-12-07 Pastushin Aviat Corp Apparatus for forming hollow bodies
US2809602A (en) * 1952-07-16 1957-10-15 Forges Ateliers Const Electr Machine for setting and molding containers
US2949875A (en) * 1954-07-22 1960-08-23 Olin Mathieson Apparatus for forming hollow sheet metal panels
USRE33990E (en) * 1987-05-06 1992-07-14 Ti Corporate Services Limited Method of forming box-like frame members
US5481892A (en) * 1989-08-24 1996-01-09 Roper; Ralph E. Apparatus and method for forming a tubular member
US6502822B1 (en) 1997-05-15 2003-01-07 Aquaform, Inc. Apparatus and method for creating a seal on an inner wall of a tube for hydroforming
GR20010100360A (en) * 2001-07-24 2003-03-28 Μοδεστος Καλεργης System for the construction and shaping of elements of a pillar

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