NL77179C - - Google Patents

Info

Publication number
NL77179C
NL77179C NL77179DA NL77179C NL 77179 C NL77179 C NL 77179C NL 77179D A NL77179D A NL 77179DA NL 77179 C NL77179 C NL 77179C
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 NL77179C publication Critical patent/NL77179C/xx
Priority claimed from US106232A external-priority patent/US2590597A/en

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
    • B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
    • B23G9/001—Working screws
    • B23G9/002—Slotting screw heads or shanks
    • 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
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Clamps And Clips (AREA)
NL77179D 1949-07-22 NL77179C (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US106232A US2590597A (en) 1949-07-22 1949-07-22 Method of slotting the shanks of screw fasteners
US157906A US2624228A (en) 1949-07-22 1950-04-25 Fastener with slotted pilot portion

Publications (1)

Publication Number Publication Date
NL77179C true NL77179C (it)

Family

ID=26803441

Family Applications (2)

Application Number Title Priority Date Filing Date
NL686804200A NL149710B (nl) 1949-07-22 Verfafmeetinrichting.
NL77179D NL77179C (it) 1949-07-22

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL686804200A NL149710B (nl) 1949-07-22 Verfafmeetinrichting.

Country Status (2)

Country Link
US (1) US2624228A (it)
NL (2) NL77179C (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881652A (en) * 1955-07-14 1959-04-14 Frank H Swaim Hollow self-tapping and self-locking screw
US5088869A (en) * 1991-01-24 1992-02-18 Greenslade Joe E Thread rolling screw

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909476A (en) * 1931-11-28 1933-05-16 Shakeproof Lock Washer Co Self-tapping screw
US2156350A (en) * 1937-04-19 1939-05-02 Illinois Tool Works Fastener
US2292195A (en) * 1940-07-03 1942-08-04 Continental Screw Company Fastener

Also Published As

Publication number Publication date
NL149710B (nl)
US2624228A (en) 1953-01-06

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