FR1053707A - Circumferential notches with special head wrench to ensure the screwing or unscrewing of all screws or threaded members - Google Patents

Circumferential notches with special head wrench to ensure the screwing or unscrewing of all screws or threaded members

Info

Publication number
FR1053707A
FR1053707A FR1053707DA FR1053707A FR 1053707 A FR1053707 A FR 1053707A FR 1053707D A FR1053707D A FR 1053707DA FR 1053707 A FR1053707 A FR 1053707A
Authority
FR
France
Prior art keywords
unscrewing
screwing
screws
ensure
threaded members
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
Paul-Antoine Jacquemond
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 FR1053707A publication Critical patent/FR1053707A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR1053707D 1952-04-11 1952-04-11 Circumferential notches with special head wrench to ensure the screwing or unscrewing of all screws or threaded members Expired FR1053707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1053707T 1952-04-11

Publications (1)

Publication Number Publication Date
FR1053707A true FR1053707A (en) 1954-02-04

Family

ID=9596090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1053707D Expired FR1053707A (en) 1952-04-11 1952-04-11 Circumferential notches with special head wrench to ensure the screwing or unscrewing of all screws or threaded members

Country Status (1)

Country Link
FR (1) FR1053707A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section
US3111961A (en) * 1959-04-27 1963-11-26 John E Dudgcon Removable spring check valve
US4237754A (en) * 1979-07-12 1980-12-09 Raymond Troutt Universal spud wrench

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section
US3111961A (en) * 1959-04-27 1963-11-26 John E Dudgcon Removable spring check valve
US4237754A (en) * 1979-07-12 1980-12-09 Raymond Troutt Universal spud wrench

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