CH253300A - Method of making conical tubes. - Google Patents

Method of making conical tubes.

Info

Publication number
CH253300A
CH253300A CH253300DA CH253300A CH 253300 A CH253300 A CH 253300A CH 253300D A CH253300D A CH 253300DA CH 253300 A CH253300 A CH 253300A
Authority
CH
Switzerland
Prior art keywords
conical tubes
making conical
making
tubes
conical
Prior art date
Application number
Other languages
German (de)
Inventor
Inc Rockrite Processes
Original Assignee
Inc Rockrite Processes
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 Inc Rockrite Processes filed Critical Inc Rockrite Processes
Publication of CH253300A publication Critical patent/CH253300A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
CH253300D 1942-08-07 1945-02-06 Method of making conical tubes. CH253300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US253300XA 1942-08-07 1942-08-07

Publications (1)

Publication Number Publication Date
CH253300A true CH253300A (en) 1948-02-29

Family

ID=21825390

Family Applications (1)

Application Number Title Priority Date Filing Date
CH253300D CH253300A (en) 1942-08-07 1945-02-06 Method of making conical tubes.

Country Status (1)

Country Link
CH (1) CH253300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911008C (en) * 1950-03-31 1954-05-10 Tube Reducing Corp Device for advancing and rotating the rolling stock as well as for rotating the rolling mandrel for pilger rolling mills to reduce tubes and bars with a rolling frame going back and forth

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911008C (en) * 1950-03-31 1954-05-10 Tube Reducing Corp Device for advancing and rotating the rolling stock as well as for rotating the rolling mandrel for pilger rolling mills to reduce tubes and bars with a rolling frame going back and forth

Similar Documents

Publication Publication Date Title
AT183492B (en) Process for the production of new copper-compatible polyazo dyes
CH236805A (en) Process for shaping materials.
CH253300A (en) Method of making conical tubes.
CH248560A (en) Method of joining surfaces.
CH236680A (en) Process for the production of textile auxiliaries.
CH231150A (en) Process for obtaining toxiferin I and II.
CH227391A (en) Process for surface hardening of workpieces.
CH234081A (en) Washing method.
CH232635A (en) Method of joining pieces of film.
CH239848A (en) Process for the preparation of 6-sulfanilamido-4-methyl-pyrimidine.
CH237492A (en) Process for the manufacture of rectifier disks.
CH237389A (en) Process for halogenating hydrocarbons.
CH235287A (en) Process for increasing the water resistance of a superpolyamide.
CH232900A (en) Process for polymerizing 2-halobutadiene-1.3.
CH227887A (en) Process for the preparation of tetrahydro-p-oxazinylmethyl-benzodioxane.
CH236224A (en) Process for the preparation of acetyl-iso-malodinitrile.
CH232129A (en) Process for polymerizing 2-chlorobutadiene-1.3.
CH258848A (en) Saponification process.
FR978464A (en) Further development of the brazing process
CH236240A (en) Process for improving the processability and the stability of polyvinyl chloride-plasticizer mixtures.
CH263876A (en) Method of dressing seeds.
CH236342A (en) Process for the production of acrylic anilide.
CH233465A (en) Procedure for the operation of converter systems.
CH232899A (en) Process for improving the heat resistance of polyvinyl acetals.
CH231713A (en) Process for dyeing super polyamides.