FR521951A - Improvements in multi-tube boilers - Google Patents

Improvements in multi-tube boilers

Info

Publication number
FR521951A
FR521951A FR521951A FR521951DA FR521951A FR 521951 A FR521951 A FR 521951A FR 521951 A FR521951 A FR 521951A FR 521951D A FR521951D A FR 521951DA FR 521951 A FR521951 A FR 521951A
Authority
FR
France
Prior art keywords
tube boilers
boilers
tube
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
FR521951A
Other languages
French (fr)
Inventor
Jean Parot
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 FR521951A publication Critical patent/FR521951A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
    • B23D63/06—Upsetting the cutting edges of saw teeth, e.g. swaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
    • B23D63/18—Straightening damaged saw blades; Reconditioning the side surface of saw blades, e.g. by grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
    • B23D63/20—Combined processes for dressing saw teeth, e.g. both hardening and setting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR521951A 1919-08-07 1920-08-04 Improvements in multi-tube boilers Expired FR521951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE521951X 1919-08-07

Publications (1)

Publication Number Publication Date
FR521951A true FR521951A (en) 1921-07-22

Family

ID=8917563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521951A Expired FR521951A (en) 1919-08-07 1920-08-04 Improvements in multi-tube boilers

Country Status (1)

Country Link
FR (1) FR521951A (en)

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