GB2042120B - Long-pitsch crest thread - Google Patents

Long-pitsch crest thread

Info

Publication number
GB2042120B
GB2042120B GB7904777A GB7904777A GB2042120B GB 2042120 B GB2042120 B GB 2042120B GB 7904777 A GB7904777 A GB 7904777A GB 7904777 A GB7904777 A GB 7904777A GB 2042120 B GB2042120 B GB 2042120B
Authority
GB
United Kingdom
Prior art keywords
pitsch
long
crest thread
crest
thread
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
GB7904777A
Other versions
GB2042120A (en
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.)
Gutshall C E
Original Assignee
Gutshall C E
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 Gutshall C E filed Critical Gutshall C E
Priority to GB7904777A priority Critical patent/GB2042120B/en
Priority to AU44271/79A priority patent/AU524810B2/en
Priority to FR7904079A priority patent/FR2449225A1/en
Priority to DE19792906295 priority patent/DE2906295A1/en
Publication of GB2042120A publication Critical patent/GB2042120A/en
Application granted granted Critical
Publication of GB2042120B publication Critical patent/GB2042120B/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
GB7904777A 1979-02-10 1979-02-10 Long-pitsch crest thread Expired GB2042120B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7904777A GB2042120B (en) 1979-02-10 1979-02-10 Long-pitsch crest thread
AU44271/79A AU524810B2 (en) 1979-02-10 1979-02-15 Long-pitch re-rolled crest thread
FR7904079A FR2449225A1 (en) 1979-02-10 1979-02-16 SCREW PRODUCED BY TURNING AN ELONGATED CYLINDRICAL BLANK
DE19792906295 DE2906295A1 (en) 1979-02-10 1979-02-19 SCREW

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB7904777A GB2042120B (en) 1979-02-10 1979-02-10 Long-pitsch crest thread
AU44271/79A AU524810B2 (en) 1979-02-10 1979-02-15 Long-pitch re-rolled crest thread
FR7904079A FR2449225A1 (en) 1979-02-10 1979-02-16 SCREW PRODUCED BY TURNING AN ELONGATED CYLINDRICAL BLANK
DE19792906295 DE2906295A1 (en) 1979-02-10 1979-02-19 SCREW

Publications (2)

Publication Number Publication Date
GB2042120A GB2042120A (en) 1980-09-17
GB2042120B true GB2042120B (en) 1983-07-20

Family

ID=27423238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904777A Expired GB2042120B (en) 1979-02-10 1979-02-10 Long-pitsch crest thread

Country Status (4)

Country Link
AU (1) AU524810B2 (en)
DE (1) DE2906295A1 (en)
FR (1) FR2449225A1 (en)
GB (1) GB2042120B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389923B (en) * 1988-01-29 1990-02-26 Sfs Stadler Ag SELF-DRILLING AND THREADING SCREW FOR TURNING INTO GAS-CONCRETE
US5061135A (en) * 1990-08-28 1991-10-29 Research Engineering & Manufacturing, Inc. Thread tapping screw
GB2252381B (en) * 1990-12-14 1995-08-09 Charles Bickford Improved fixing
US5800107A (en) * 1996-04-19 1998-09-01 Giannuzzi; Louis N. Self-tapping, screw-type masonry anchor
US5957646A (en) * 1998-11-02 1999-09-28 Anthony C. Giannuzzi Enhanced strength screw-type masonry anchor
GB9826978D0 (en) * 1998-12-08 1999-02-03 P A Fixings Ltd Improved fixing device & method
GB2375153A (en) * 2001-05-02 2002-11-06 Trifast Plc Screw fastening
DE10142523A1 (en) * 2001-08-30 2003-03-20 Mungo Befestigungstechnik Ag O Screw for use with wall plug has two threads with different angles around its lower end, thread with larger angle having rear wall which is less steep than front wall
ES2327786T3 (en) * 2007-03-28 2009-11-03 M-CUT SYSTEMS GMBH & CO. KG TAPPING SCREW.
DE102013210476C5 (en) * 2013-06-04 2021-04-29 Baier & Michels Gmbh & Co. Kg Method for producing a screw, in particular for use in plastic components
DE102015100037A1 (en) * 2015-01-05 2016-07-07 Adolf Würth GmbH & Co. KG Screw with discontinuity at intermediate threaded portion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE54903C (en) * THE AMERICAN screw COMPANY in Providence, Rhode Island, V. St. A Wood screw with a flat auxiliary thread between the sharp threads
NL21132C (en) * 1927-06-24
US3207023A (en) * 1961-12-01 1965-09-21 Illinois Tool Works Screw fastener
DE2318088C2 (en) * 1973-04-11 1974-12-19 Altenloh, Brinck & Co, 5828 Ennepetal-Milspe Self-tapping screw

Also Published As

Publication number Publication date
AU4427179A (en) 1980-08-21
AU524810B2 (en) 1982-10-07
GB2042120A (en) 1980-09-17
FR2449225A1 (en) 1980-09-12
DE2906295A1 (en) 1980-08-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee