GB152885A - Improved screw - Google Patents

Improved screw

Info

Publication number
GB152885A
GB152885A GB3003019A GB3003019A GB152885A GB 152885 A GB152885 A GB 152885A GB 3003019 A GB3003019 A GB 3003019A GB 3003019 A GB3003019 A GB 3003019A GB 152885 A GB152885 A GB 152885A
Authority
GB
United Kingdom
Prior art keywords
screw
notches
head
improved screw
selfcountersinking
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
GB3003019A
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.)
ROBERT JOHN GOODMAN
Original Assignee
ROBERT JOHN GOODMAN
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 ROBERT JOHN GOODMAN filed Critical ROBERT JOHN GOODMAN
Priority to GB3003019A priority Critical patent/GB152885A/en
Publication of GB152885A publication Critical patent/GB152885A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
    • 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
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
    • 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
    • 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
    • F16B35/06—Specially-shaped heads
    • F16B35/065—Specially-shaped heads with self-countersink-cutting means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Connection Of Plates (AREA)
  • Furniture Connections (AREA)
  • Joining Of Corner Units Of Frames Or Wings (AREA)

Abstract

152,885. Goodman, R. J. Dec. 2, 1919. Wood-screws. - A selfcountersinking screw has one or more V-shaped notches 2 in the head, the edges of the notches being of different lengths and tangential to circles of different diameters concentric with the head of the screw. Inclined or curved grooves 4 run from the notches down the stem of the screw to the thread. Reference has been directed by the Comptroller to Specifications 11387/05, 24725/12, and 140,983.
GB3003019A 1919-12-02 1919-12-02 Improved screw Expired GB152885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3003019A GB152885A (en) 1919-12-02 1919-12-02 Improved screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3003019A GB152885A (en) 1919-12-02 1919-12-02 Improved screw

Publications (1)

Publication Number Publication Date
GB152885A true GB152885A (en) 1920-10-28

Family

ID=10301127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3003019A Expired GB152885A (en) 1919-12-02 1919-12-02 Improved screw

Country Status (1)

Country Link
GB (1) GB152885A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186009U (en) * 1974-12-30 1976-07-09
FR2378201A1 (en) * 1977-01-20 1978-08-18 Salomon & Fils F Ski-binding base mounting - with material removed rom around under-size hole so that walls collapse on tightening
US5683217A (en) * 1996-03-27 1997-11-04 Walther; Uli Self-counter-sinking screw with cutting receiving pockets
WO2010088647A1 (en) * 2009-02-02 2010-08-05 The Boeing Company Fastener relief path
WO2011032259A1 (en) * 2009-09-17 2011-03-24 Mirco Walther Screw having underside cutters and pockets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186009U (en) * 1974-12-30 1976-07-09
FR2378201A1 (en) * 1977-01-20 1978-08-18 Salomon & Fils F Ski-binding base mounting - with material removed rom around under-size hole so that walls collapse on tightening
US5683217A (en) * 1996-03-27 1997-11-04 Walther; Uli Self-counter-sinking screw with cutting receiving pockets
USRE36741E (en) * 1996-03-27 2000-06-20 Walther; Uli Self-countersinking screw with cutting receiving pockets
WO2010088647A1 (en) * 2009-02-02 2010-08-05 The Boeing Company Fastener relief path
US8146230B2 (en) 2009-02-02 2012-04-03 The Boeing Company Method of reducing pressuing during installation of a fastener
WO2011032259A1 (en) * 2009-09-17 2011-03-24 Mirco Walther Screw having underside cutters and pockets
CN102741569A (en) * 2009-09-17 2012-10-17 米克罗·华尔特 Screw having underside cutters and pockets
US9086088B2 (en) 2009-09-17 2015-07-21 Illinois Tool Works Inc. Screw having underside cutters and pockets
CN102741569B (en) * 2009-09-17 2015-11-25 伊利诺斯工具制品有限公司 There is the screw of bottom surface cutter and container

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