FR678425A - Improvements in pipe manufacturing - Google Patents

Improvements in pipe manufacturing

Info

Publication number
FR678425A
FR678425A FR678425DA FR678425A FR 678425 A FR678425 A FR 678425A FR 678425D A FR678425D A FR 678425DA FR 678425 A FR678425 A FR 678425A
Authority
FR
France
Prior art keywords
pipe manufacturing
pipe
manufacturing
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
Francis Sonnichsen
Francis Adolf Frisch
Herman Arthur Nicolaysen
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 filed Critical
Application granted granted Critical
Publication of FR678425A publication Critical patent/FR678425A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
    • B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
    • B23K11/062—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams for welding longitudinal seams of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR678425D 1928-08-11 1929-07-13 Improvements in pipe manufacturing Expired FR678425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO678425X 1928-08-11

Publications (1)

Publication Number Publication Date
FR678425A true FR678425A (en) 1930-03-24

Family

ID=19906614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR678425D Expired FR678425A (en) 1928-08-11 1929-07-13 Improvements in pipe manufacturing

Country Status (1)

Country Link
FR (1) FR678425A (en)

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