GB247511A - Improvements in or relating to the "self-hooping" of metal tubes - Google Patents

Improvements in or relating to the "self-hooping" of metal tubes

Info

Publication number
GB247511A
GB247511A GB19922/25A GB1992225A GB247511A GB 247511 A GB247511 A GB 247511A GB 19922/25 A GB19922/25 A GB 19922/25A GB 1992225 A GB1992225 A GB 1992225A GB 247511 A GB247511 A GB 247511A
Authority
GB
United Kingdom
Prior art keywords
tube
mandrel
hooping
joint
plug
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
GB19922/25A
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.)
Schneider Electric SE
Original Assignee
Schneider et Cie
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 Schneider et Cie filed Critical Schneider et Cie
Publication of GB247511A publication Critical patent/GB247511A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00Modifying the physical properties of iron or steel by deformation
    • C21D7/02Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/12Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

247,511. Schneider et Cie. Feb. 14, 1925, [Convention date]. Addition to 244,047. Physical or molucular structure, altering by mechanical treatment.- In a hydraulic or pneumatic joint between the mandrel and tube of a selfhooping apparatus as described in the parent Specification, the fluid pressure cylinder E is enclosed within the tube A and abuts against a plug C screwed or otherwise secured to the end of the tube. The piston F acts through a series of washers f and an annular plate f<1> on a joint G<1> between the mandrel G and the tube, the second joint G<2> being secured between a shoulder on the mandrel and a ring I engaging a plug B attached to the other end of the tube. The mandrel is shown in position for producing a hooping .effect on the portion a of the tube A, and for operating on the remainder of the tube the plugs B, C are removed and the tube secured on the mandrel and cylinder, use being made of removable collars to vary the hooping effect as in the parent Specification. The hooping fluid is admitted at g and the independent joint pressure at e<1>. In a modification, the washers f are introduced between the cylinder E and the plug B or C.
GB19922/25A 1925-02-14 1925-08-07 Improvements in or relating to the "self-hooping" of metal tubes Expired GB247511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR247511X 1925-02-14

Publications (1)

Publication Number Publication Date
GB247511A true GB247511A (en) 1926-04-01

Family

ID=8883777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19922/25A Expired GB247511A (en) 1925-02-14 1925-08-07 Improvements in or relating to the "self-hooping" of metal tubes

Country Status (1)

Country Link
GB (1) GB247511A (en)

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