GB938721A - Screwdriver - Google Patents

Screwdriver

Info

Publication number
GB938721A
GB938721A GB2071462A GB2071462A GB938721A GB 938721 A GB938721 A GB 938721A GB 2071462 A GB2071462 A GB 2071462A GB 2071462 A GB2071462 A GB 2071462A GB 938721 A GB938721 A GB 938721A
Authority
GB
United Kingdom
Prior art keywords
shank
pin
blade
slots
screwdriver
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
GB2071462A
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
Priority to GB2071462A priority Critical patent/GB938721A/en
Publication of GB938721A publication Critical patent/GB938721A/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
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

938,721. Screwdrivers. R. BARANY. May 29, 1962, No. 20714/62. Class 61. [Also in Group XXV] A screwdriver, adapted for use with a screw having a socket in addition to at least one slot, comprises a shank 6, a blade 8 projecting from one end of the shank, a pin 7 projecting from the end of the shank and secured thereto or formed integrally therewith, the pin being slotted at 13 to receive the blade 8 which extends laterally beyond the pin. As shown, the shank 6 has at one end a centrally disposed bore 10 adapted to receive the pin 7, the bore 10 having slots 11 which are arranged to register with the slots 13 in the shank when the screwdriver is assembled and the blade inserted in the slots. The assembly is held by a retaining ring 9 which engages a circumferential groove 14 in the shank and nicks 15 in the blade. An alternative retaining means, Fig. 6 (not shown), comprises a flanged cap adapted to fit tightly over the outermost portion of the shank 6 and having an aperture adapted to fit over the pin 7 and lateral extensions of the blade therebeyond. In another modification, Fig. 7 (not shown), the pin and shank are integral being made of the same piece. U.S.A. Specifications 1,797,390, 2,431,628 and 2,522,164 are referred to.
GB2071462A 1962-05-29 1962-05-29 Screwdriver Expired GB938721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2071462A GB938721A (en) 1962-05-29 1962-05-29 Screwdriver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2071462A GB938721A (en) 1962-05-29 1962-05-29 Screwdriver

Publications (1)

Publication Number Publication Date
GB938721A true GB938721A (en) 1963-10-02

Family

ID=10150448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2071462A Expired GB938721A (en) 1962-05-29 1962-05-29 Screwdriver

Country Status (1)

Country Link
GB (1) GB938721A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123509A (en) * 1982-06-25 1984-02-01 Atomic Energy Authority Uk Screw fasteners
WO2002096604A1 (en) * 2001-05-31 2002-12-05 Strömsholmen Ab Tool for transmitting a torque to a tubular mechanical element with wedge-shaped projections/recesses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123509A (en) * 1982-06-25 1984-02-01 Atomic Energy Authority Uk Screw fasteners
WO2002096604A1 (en) * 2001-05-31 2002-12-05 Strömsholmen Ab Tool for transmitting a torque to a tubular mechanical element with wedge-shaped projections/recesses

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