FR502663A - Improvements to threading devices - Google Patents

Improvements to threading devices

Info

Publication number
FR502663A
FR502663A FR502663A FR502663DA FR502663A FR 502663 A FR502663 A FR 502663A FR 502663 A FR502663 A FR 502663A FR 502663D A FR502663D A FR 502663DA FR 502663 A FR502663 A FR 502663A
Authority
FR
France
Prior art keywords
threading devices
threading
devices
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
FR502663A
Other languages
French (fr)
Inventor
Augustin Hello
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.)
AUGUSTIN HELLO
Original Assignee
AUGUSTIN HELLO
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 AUGUSTIN HELLO filed Critical AUGUSTIN HELLO
Application granted granted Critical
Publication of FR502663A publication Critical patent/FR502663A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
    • B23G1/04—Machines with one working-spindle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR502663A 1919-08-18 1919-08-18 Improvements to threading devices Expired FR502663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR502663T 1919-08-18

Publications (1)

Publication Number Publication Date
FR502663A true FR502663A (en) 1920-05-22

Family

ID=8906522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR502663A Expired FR502663A (en) 1919-08-18 1919-08-18 Improvements to threading devices

Country Status (1)

Country Link
FR (1) FR502663A (en)

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