CH421860A - Tool for tightening and loosening screw connections - Google Patents

Tool for tightening and loosening screw connections

Info

Publication number
CH421860A
CH421860A CH1412963A CH1412963A CH421860A CH 421860 A CH421860 A CH 421860A CH 1412963 A CH1412963 A CH 1412963A CH 1412963 A CH1412963 A CH 1412963A CH 421860 A CH421860 A CH 421860A
Authority
CH
Switzerland
Prior art keywords
tightening
tool
screw connections
loosening screw
loosening
Prior art date
Application number
CH1412963A
Other languages
German (de)
Inventor
Ivar Christensson Kjell
Original Assignee
Ivar Christensson Kjell
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 Ivar Christensson Kjell filed Critical Ivar Christensson Kjell
Publication of CH421860A publication Critical patent/CH421860A/en

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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
    • B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
CH1412963A 1962-11-23 1963-11-18 Tool for tightening and loosening screw connections CH421860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1258462 1962-11-23

Publications (1)

Publication Number Publication Date
CH421860A true CH421860A (en) 1966-09-30

Family

ID=20295988

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1412963A CH421860A (en) 1962-11-23 1963-11-18 Tool for tightening and loosening screw connections

Country Status (6)

Country Link
US (1) US3211028A (en)
AT (1) AT240301B (en)
CH (1) CH421860A (en)
DE (1) DE1478846A1 (en)
DK (1) DK109190C (en)
GB (1) GB984953A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675515A (en) * 1970-09-30 1972-07-11 Creative Tool High energy impact wrench assembly
GB1572568A (en) * 1976-08-23 1980-07-30 Harmat Nominees Pty Ltd Wrench
US6983667B2 (en) * 2001-07-23 2006-01-10 University Of Arizona Impact micro-positioning actuator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450778A (en) * 1934-03-06 1936-07-24 Mueller Friedrich Improvements in means for connecting and disconnecting screwed joints
US2119968A (en) * 1935-03-15 1938-06-07 William H Keller Inc Power wrench
US2112693A (en) * 1937-06-16 1938-03-29 Independent Pneumatic Tool Co Portable hammer wrench

Also Published As

Publication number Publication date
GB984953A (en) 1965-03-03
US3211028A (en) 1965-10-12
AT240301B (en) 1965-05-25
DE1478846A1 (en) 1969-02-06
DK109190C (en) 1968-03-25

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