FR681360A - Improvements to bar and tube straightening machines - Google Patents

Improvements to bar and tube straightening machines

Info

Publication number
FR681360A
FR681360A FR681360DA FR681360A FR 681360 A FR681360 A FR 681360A FR 681360D A FR681360D A FR 681360DA FR 681360 A FR681360 A FR 681360A
Authority
FR
France
Prior art keywords
bar
straightening machines
tube straightening
tube
machines
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
Thomas Wilson Hartley
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 FR681360A publication Critical patent/FR681360A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/04—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR681360D 1929-06-12 1929-09-05 Improvements to bar and tube straightening machines Expired FR681360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB681360X 1929-06-12

Publications (1)

Publication Number Publication Date
FR681360A true FR681360A (en) 1930-05-14

Family

ID=10492471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681360D Expired FR681360A (en) 1929-06-12 1929-09-05 Improvements to bar and tube straightening machines

Country Status (1)

Country Link
FR (1) FR681360A (en)

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