GB251409A - Improvements in wood screws and means for manufacturing the same - Google Patents

Improvements in wood screws and means for manufacturing the same

Info

Publication number
GB251409A
GB251409A GB1936024A GB1936024A GB251409A GB 251409 A GB251409 A GB 251409A GB 1936024 A GB1936024 A GB 1936024A GB 1936024 A GB1936024 A GB 1936024A GB 251409 A GB251409 A GB 251409A
Authority
GB
United Kingdom
Prior art keywords
manufacturing
same
threads
wood screws
cut
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
GB1936024A
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.)
GEORGE WILLIAM FARROW
Guest Keen and Nettlefolds Ltd
Original Assignee
GEORGE WILLIAM FARROW
Guest Keen and Nettlefolds Ltd
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 GEORGE WILLIAM FARROW, Guest Keen and Nettlefolds Ltd filed Critical GEORGE WILLIAM FARROW
Priority to GB1936024A priority Critical patent/GB251409A/en
Publication of GB251409A publication Critical patent/GB251409A/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
    • F16B25/0047—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 ridge being characterised by its cross-section in the plane of the shaft axis
    • 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
    • F16B25/0068—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 with multiple-threads, e.g. a double thread screws
    • 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
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material

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)

Abstract

251,409. Guest, Keen, & Nettlefolds, Ltd., and Farrow, G. W. June 15, 1925. Chasers.-A tool 4 for use in cutting main and auxiliary threads on a wood-screw, in which the portions intermediate the threads are parallel to the portions intermediate the adjacent threads, is stepped as shown at 5 and 6. The main thread is cut bv the portion 5, while the auxiliary thread is cut by the portion 6 which is advanced into the cutting position on nearing the point of the screw.
GB1936024A 1925-06-15 1925-06-15 Improvements in wood screws and means for manufacturing the same Expired GB251409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1936024A GB251409A (en) 1925-06-15 1925-06-15 Improvements in wood screws and means for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1936024A GB251409A (en) 1925-06-15 1925-06-15 Improvements in wood screws and means for manufacturing the same

Publications (1)

Publication Number Publication Date
GB251409A true GB251409A (en) 1926-05-13

Family

ID=10128033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1936024A Expired GB251409A (en) 1925-06-15 1925-06-15 Improvements in wood screws and means for manufacturing the same

Country Status (1)

Country Link
GB (1) GB251409A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207023A (en) * 1961-12-01 1965-09-21 Illinois Tool Works Screw fastener
DE2732695A1 (en) * 1977-02-23 1978-08-24 Yamashina Seikosho Kk SELF-TAPPING FASTENER
US4323326A (en) * 1979-01-17 1982-04-06 Mitsuo Okada Self-drilling screw
EP0281203A1 (en) * 1987-03-06 1988-09-07 Kilton S.R.L. Improved screw
US4874278A (en) * 1987-02-16 1989-10-17 Kabushiki Kaisha Yamahiro Wood screw with chip removing portion
WO2011023666A1 (en) * 2009-08-26 2011-03-03 Schmid Schrauben Hainfeld Gmbh Screw
EP2522864A3 (en) * 2011-05-12 2014-07-16 Berner Trading Holding GmbH Wood or plastic screw

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207023A (en) * 1961-12-01 1965-09-21 Illinois Tool Works Screw fastener
DE2732695A1 (en) * 1977-02-23 1978-08-24 Yamashina Seikosho Kk SELF-TAPPING FASTENER
US4323326A (en) * 1979-01-17 1982-04-06 Mitsuo Okada Self-drilling screw
US4874278A (en) * 1987-02-16 1989-10-17 Kabushiki Kaisha Yamahiro Wood screw with chip removing portion
EP0281203A1 (en) * 1987-03-06 1988-09-07 Kilton S.R.L. Improved screw
WO2011023666A1 (en) * 2009-08-26 2011-03-03 Schmid Schrauben Hainfeld Gmbh Screw
EP2522864A3 (en) * 2011-05-12 2014-07-16 Berner Trading Holding GmbH Wood or plastic screw

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