FR489567A - Improvements made to gear shifting systems, such as, in particular, those interposed in certain machine tools between the motor shaft and the tool holder whose rotation it controls - Google Patents

Improvements made to gear shifting systems, such as, in particular, those interposed in certain machine tools between the motor shaft and the tool holder whose rotation it controls

Info

Publication number
FR489567A
FR489567A FR489567A FR489567DA FR489567A FR 489567 A FR489567 A FR 489567A FR 489567 A FR489567 A FR 489567A FR 489567D A FR489567D A FR 489567DA FR 489567 A FR489567 A FR 489567A
Authority
FR
France
Prior art keywords
controls
motor shaft
tool holder
gear shifting
machine tools
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
FR489567A
Other languages
French (fr)
Inventor
Fernand-Victor Percin
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.)
FERNAND-VICTOR PERCIN
Original Assignee
FERNAND-VICTOR PERCIN
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 FERNAND-VICTOR PERCIN filed Critical FERNAND-VICTOR PERCIN
Priority claimed from US254225A external-priority patent/US1359422A/en
Application granted granted Critical
Publication of FR489567A publication Critical patent/FR489567A/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
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B23G1/46—Equipment or accessories specially designed for machines or devices for thread cutting for holding the threading tools
    • B23G1/465—Equipment or accessories specially designed for machines or devices for thread cutting for holding the threading tools comprising arrangements for reversing the rotation of the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
FR489567A 1917-10-08 1917-10-08 Improvements made to gear shifting systems, such as, in particular, those interposed in certain machine tools between the motor shaft and the tool holder whose rotation it controls Expired FR489567A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR120204X 1917-10-08
US254225A US1359422A (en) 1918-09-16 1918-09-16 Reversing mechanism

Publications (1)

Publication Number Publication Date
FR489567A true FR489567A (en) 1919-02-20

Family

ID=32737529

Family Applications (1)

Application Number Title Priority Date Filing Date
FR489567A Expired FR489567A (en) 1917-10-08 1917-10-08 Improvements made to gear shifting systems, such as, in particular, those interposed in certain machine tools between the motor shaft and the tool holder whose rotation it controls

Country Status (2)

Country Link
FR (1) FR489567A (en)
GB (1) GB120204A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1163949A (en) * 1956-11-09 1958-10-02 Precision fast spindle, for milling machine, or other machine tool

Also Published As

Publication number Publication date
GB120204A (en) 1919-06-26

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