CH575786A5 - - Google Patents

Info

Publication number
CH575786A5
CH575786A5 CH398173A CH398173A CH575786A5 CH 575786 A5 CH575786 A5 CH 575786A5 CH 398173 A CH398173 A CH 398173A CH 398173 A CH398173 A CH 398173A CH 575786 A5 CH575786 A5 CH 575786A5
Authority
CH
Switzerland
Application number
CH398173A
Original Assignee
Bohner & Koehle
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 DE19722217441 external-priority patent/DE2217441C/de
Application filed by Bohner & Koehle filed Critical Bohner & Koehle
Publication of CH575786A5 publication Critical patent/CH575786A5/xx

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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
CH398173A 1972-04-12 1973-03-19 CH575786A5 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722217441 DE2217441C (de) 1972-04-12 Vorrichtung zum Konifizieren langge streckter Werkstucke kreisrunden Quer schnittes

Publications (1)

Publication Number Publication Date
CH575786A5 true CH575786A5 (ja) 1976-05-31

Family

ID=5841642

Family Applications (1)

Application Number Title Priority Date Filing Date
CH398173A CH575786A5 (ja) 1972-04-12 1973-03-19

Country Status (6)

Country Link
US (1) US3802240A (ja)
JP (1) JPS586586B2 (ja)
CA (1) CA982880A (ja)
CH (1) CH575786A5 (ja)
FR (1) FR2179992B1 (ja)
GB (1) GB1412845A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04181U (ja) * 1990-04-13 1992-01-06
US5657922A (en) * 1995-07-14 1997-08-19 Univ Oklahoma State Machine and process for forming tapered or cylindrical utility poles from flat sheet metal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US331574A (en) * 1885-12-01 Machine for iviaklng taper tu
GB244420A (en) * 1924-12-10 1926-04-15 James Henderson Meiklejohn Improvements in adjustable drawing dies
US3240045A (en) * 1962-10-15 1966-03-15 Prec Sheet Metal Inc Arrangement for contouring tubes
DE1285433B (de) * 1964-10-14 1968-12-19 Wieland Werke Ag Vorrichtung zum Konifizieren langgestreckter Werkstuecke kreisrunden Querschnitts
GB1188374A (en) * 1966-05-05 1970-04-15 Rotary Profile Anstalt Improvements in or relating to apparatus for Manufacturing Tubular Articles
US3431764A (en) * 1967-03-10 1969-03-11 North American Rockwell Tube tapering roller chuck
FR1572963A (ja) * 1967-07-07 1969-07-04
US3517534A (en) * 1969-07-16 1970-06-30 Koehring Co Apparatus for working tubes

Also Published As

Publication number Publication date
FR2179992B1 (ja) 1978-01-06
JPS4910151A (ja) 1974-01-29
US3802240A (en) 1974-04-09
DE2217441A1 (ja) 1972-10-26
CA982880A (en) 1976-02-03
DE2217441B2 (de) 1972-10-26
GB1412845A (en) 1975-11-05
FR2179992A1 (ja) 1973-11-23
JPS586586B2 (ja) 1983-02-05

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Legal Events

Date Code Title Description
PL Patent ceased