GB191213368A - Woodscrews. - Google Patents

Woodscrews.

Info

Publication number
GB191213368A
GB191213368A GB191213368DA GB191213368A GB 191213368 A GB191213368 A GB 191213368A GB 191213368D A GB191213368D A GB 191213368DA GB 191213368 A GB191213368 A GB 191213368A
Authority
GB
United Kingdom
Prior art keywords
grooves
driving
groove
head
woodscrews
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
Inventor
Charles Harrison
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
Application granted granted Critical
Publication of GB191213368A publication Critical patent/GB191213368A/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
    • 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)
  • Connection Of Plates (AREA)

Abstract

13,368. Harrison, C. June 6. Wood-screws.-A woodscrew with a countersinking - head has two curved grooves 6 formed on the underside so as to offer cutting-edges 5 and terminating in short delivery grooves 8 cut in the head midway between the ends of the driving-groove. The grooves 6 terminate in the plane of the base of the driving-groove.
GB191213368D 1912-06-06 1912-06-06 Woodscrews. Expired GB191213368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191213368T 1912-06-06

Publications (1)

Publication Number Publication Date
GB191213368A true GB191213368A (en) 1912-12-12

Family

ID=32641042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191213368D Expired GB191213368A (en) 1912-06-06 1912-06-06 Woodscrews.

Country Status (1)

Country Link
GB (1) GB191213368A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256938A1 (en) * 1972-11-21 1974-05-30 Upat Max Langensiepen Kg DOWELS FOR FIXING IN PARTICULAR IN PLASTER WALLS OD. DGL
US5518352A (en) * 1994-10-17 1996-05-21 Lieggi; Martin Relief screw
WO2010088647A1 (en) * 2009-02-02 2010-08-05 The Boeing Company Fastener relief path

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256938A1 (en) * 1972-11-21 1974-05-30 Upat Max Langensiepen Kg DOWELS FOR FIXING IN PARTICULAR IN PLASTER WALLS OD. DGL
US5518352A (en) * 1994-10-17 1996-05-21 Lieggi; Martin Relief screw
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

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