FR331044A - Improvements to tube threading machines - Google Patents

Improvements to tube threading machines

Info

Publication number
FR331044A
FR331044A FR331044DA FR331044A FR 331044 A FR331044 A FR 331044A FR 331044D A FR331044D A FR 331044DA FR 331044 A FR331044 A FR 331044A
Authority
FR
France
Prior art keywords
threading machines
tube threading
tube
machines
threading
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
Other languages
French (fr)
Inventor
Edwin Truman Greenfield
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR331044A publication Critical patent/FR331044A/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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR331044D 1903-04-08 1903-04-08 Improvements to tube threading machines Expired FR331044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR331044T 1903-04-08

Publications (1)

Publication Number Publication Date
FR331044A true FR331044A (en) 1903-08-29

Family

ID=1380783

Family Applications (1)

Application Number Title Priority Date Filing Date
FR331044D Expired FR331044A (en) 1903-04-08 1903-04-08 Improvements to tube threading machines

Country Status (1)

Country Link
FR (1) FR331044A (en)

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