GB1201693A - Apparatus for calibrating pipes - Google Patents

Apparatus for calibrating pipes

Info

Publication number
GB1201693A
GB1201693A GB38644/68A GB3864468A GB1201693A GB 1201693 A GB1201693 A GB 1201693A GB 38644/68 A GB38644/68 A GB 38644/68A GB 3864468 A GB3864468 A GB 3864468A GB 1201693 A GB1201693 A GB 1201693A
Authority
GB
United Kingdom
Prior art keywords
segments
pipe
housing
die
pipes
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
GB38644/68A
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.)
Friedrich Kocks GmbH and Co
Original Assignee
Friedrich Kocks GmbH and Co
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
Priority claimed from DE19671602289 external-priority patent/DE1602289B2/en
Application filed by Friedrich Kocks GmbH and Co filed Critical Friedrich Kocks GmbH and Co
Publication of GB1201693A publication Critical patent/GB1201693A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

1,201,693. Tube expanding; stamping. KOCKS WERMELSKIRCHEN G.m.b.H., [trading as FRIEDRICH KOCKS]. 13 Aug., 1968 [1 Sept., 1967], No. 38644/68. Headings B3J and B3Q. [Also in Division G1] Apparatus for calibrating pipes comprises a housing, a ring of die segments, a cylindrical sleeve bearing on the inner or outer faces of the segments and forming with the housing a chamber receiving fluid under pressure for moving the sleeve to expand or contract the die segments, and stops for engaging the ends of the segments to limit expansion or contraction of a pipe. In an example for expanding pipes 10, Fig. 3, e.g. to facilitate welding or to improve the physical properties of the material, leaf springs (2), Fig. 2 (not shown), are disposed between the die segments 1 which are contracted by annular springs 6. The sleeve 3 is of rubber, and shoulders on the housing's flanges 4, 5 act as stops for the segments. An outer ring-die 9 may be used, and the length of the pipe may be expanded in sections, or an adjustable stop may locate the housing. In a modification, Fig. 4 (not shown), the ends (41b) of the segments are formed as radial pistons for returning the segments by pressure fluid contained in a vessel (40). In another construction, Fig. 6, the die 51 contracts the pipe 10, preferably on to a mandrel 60 and against the bias of springs 66. Leafsprings are located between the segments. This construction may be adapted, Fig. 7 (not shown), for return of the dies by pressure fluid. The pipe expander, Fig. 8, is adapted also for pressure testing. An end-plate 82 seals the housing, the inner end of which is also sealed by packing 85c expanded by the testing fluid in the pipe. Pipes may be fed to the expander or contractor on roller tables, Figs. 9 and 10 (not shown), or the tool may be fed, Fig. 11 (not shown), over or into a stationary pipe. A travelling tool may engage each end of the pipe, Fig. 12 (not shown), which is supported resiliently. Travelling expanders may also be adapted for testing.
GB38644/68A 1967-09-01 1968-08-13 Apparatus for calibrating pipes Expired GB1201693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671602289 DE1602289B2 (en) 1967-09-01 1967-09-01 TOOL HEAD FOR CHANGING THE DIAMETER OF PIPES

Publications (1)

Publication Number Publication Date
GB1201693A true GB1201693A (en) 1970-08-12

Family

ID=5681016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38644/68A Expired GB1201693A (en) 1967-09-01 1968-08-13 Apparatus for calibrating pipes

Country Status (2)

Country Link
US (1) US3580020A (en)
GB (1) GB1201693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072402A2 (en) * 1981-06-27 1983-02-23 Emil Wolff Maschinenfabrik und Eisengiesserei GmbH Method of and device for the elimination or reduction of the edge mismatch in joining pipes together end-to-end by welding

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501376A (en) * 1982-08-04 1984-08-02 アプライド　パワ−　インコ−ポレイテツド fluid lost motion cylinder
DE3408070A1 (en) * 1984-03-05 1985-09-05 Kraftwerk Union AG, 4330 Mülheim EXPANSION DEVICE FOR PIPE ENDS
FI880529A (en) * 1987-07-22 1989-01-23 Siemens Ag ANALYZING FOR DRAGAND AV AVERAGE MEDELST KALLBEARBETNING.
US7207203B2 (en) * 2004-04-23 2007-04-24 General Electric Company Methods and apparatus for forming a workpiece
DE102015114345A1 (en) * 2015-04-28 2016-11-03 Sms Group Gmbh Progressively efficient tube expander and method for gradually expanding a tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1496583A (en) * 1924-06-03 of cleveland
US442579A (en) * 1890-12-09 Hydrostatic tire-setter
US691869A (en) * 1901-08-08 1902-01-28 Albany Francis Petch Apparatus for forming commutators.
US3280608A (en) * 1959-07-28 1966-10-25 Arthur R Parilla Incremental tube or vessel expander
US3344634A (en) * 1964-02-20 1967-10-03 Westinghouse Electric Corp Sizing cylindrical sections
US3362212A (en) * 1965-04-13 1968-01-09 Walker Mfg Co Tube machine
US3461712A (en) * 1967-04-25 1969-08-19 Neville T Henkel Swager for metallic rings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072402A2 (en) * 1981-06-27 1983-02-23 Emil Wolff Maschinenfabrik und Eisengiesserei GmbH Method of and device for the elimination or reduction of the edge mismatch in joining pipes together end-to-end by welding
EP0072402A3 (en) * 1981-06-27 1983-09-21 Emil Wolff Maschinenfabrik Und Eisengiesserei Gmbh Method of and device for the elimination or reduction of the edge mismatch in joining pipes together end-to-end by welding

Also Published As

Publication number Publication date
US3580020A (en) 1971-05-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
732 Registration of transactions, instruments or events in the register (sect. 32/1977)