NL251161A - - Google Patents

Info

Publication number
NL251161A
NL251161A NL251161DA NL251161A NL 251161 A NL251161 A NL 251161A NL 251161D A NL251161D A NL 251161DA NL 251161 A NL251161 A NL 251161A
Authority
NL
Netherlands
Application number
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.)
Publication of NL251161A publication Critical patent/NL251161A/xx

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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • 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
    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F16B35/044—Specially-shaped ends
    • F16B35/045—Specially-shaped ends for retention or rotation by a tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)
  • Drilling Tools (AREA)
  • Forging (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Insertion Pins And Rivets (AREA)
NL251161D 1959-05-05 NL251161A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81110559A 1959-05-05 1959-05-05

Publications (1)

Publication Number Publication Date
NL251161A true NL251161A (zh)

Family

ID=25205573

Family Applications (2)

Application Number Title Priority Date Filing Date
NL112346D NL112346C (zh) 1959-05-05
NL251161D NL251161A (zh) 1959-05-05

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL112346D NL112346C (zh) 1959-05-05

Country Status (6)

Country Link
AT (2) AT241248B (zh)
BE (1) BE590386A (zh)
DE (4) DE1923210U (zh)
ES (1) ES257752A1 (zh)
GB (1) GB953795A (zh)
NL (2) NL251161A (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826933C2 (de) * 1978-06-20 1980-04-24 Anton 8500 Nuernberg Gerhard Zur Aufnahme einer Abdeckkappe geeignete Kreuzschlitz-Schraube und Verfahren zu ihrer Herstellung
DE29812208U1 (de) 1998-07-09 1998-10-22 Schlaf, Friedhelm, 34399 Oberweser Innenvielnutschraube und Vielnutschlüssel zum Einschrauben der Innenvielnutschraube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140449A (en) * 1937-02-10 1938-12-13 Continental Screw Company Screw with socketed head and plurality of slots
US2173707A (en) * 1937-11-27 1939-09-19 Continental Screw Company Square socket screw with side slots
US2285462A (en) * 1939-05-26 1942-06-09 Holo Krome Screw Corp Method of and apparatus for making socketed screws
US2556155A (en) * 1946-07-13 1951-06-05 Domnic V Stellin Socket head screw
US2588404A (en) * 1946-09-04 1952-03-11 Herman G Muenchinger Fastening device and method of making same
US2592462A (en) * 1951-09-11 1952-04-08 Res Eng & Mfg Recessed head fastener

Also Published As

Publication number Publication date
DE1922795U (de) 1965-09-02
NL112346C (zh)
BE590386A (fr) 1960-09-01
DE1179769B (de) 1964-10-15
DE1923210U (de) 1965-09-09
GB953795A (en) 1964-04-02
AT244876B (de) 1966-01-25
ES257752A1 (es) 1960-07-16
AT241248B (de) 1965-07-12
DE1925198U (de) 1965-10-07

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