GB1232185A - - Google Patents

Info

Publication number
GB1232185A
GB1232185A GB1232185DA GB1232185A GB 1232185 A GB1232185 A GB 1232185A GB 1232185D A GB1232185D A GB 1232185DA GB 1232185 A GB1232185 A GB 1232185A
Authority
GB
United Kingdom
Prior art keywords
dec
drills
fischer
heading
division
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
Other languages
English (en)
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 filed Critical
Publication of GB1232185A publication Critical patent/GB1232185A/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
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • F16B25/0026—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 hard non-organic material, e.g. stone, concrete or drywall

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Dowels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
GB1232185D 1968-12-21 1969-12-08 Expired GB1232185A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6812703U DE6812703U (de) 1968-12-21 1968-12-21 Befestigungselement fuer den einsatz in mauerwerk od. dergl.

Publications (1)

Publication Number Publication Date
GB1232185A true GB1232185A (de) 1971-05-19

Family

ID=6596759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232185D Expired GB1232185A (de) 1968-12-21 1969-12-08

Country Status (8)

Country Link
JP (1) JPS4812030B1 (de)
BE (1) BE743351A (de)
CH (1) CH516099A (de)
DE (1) DE6812703U (de)
FR (1) FR2026773A1 (de)
GB (1) GB1232185A (de)
IL (1) IL33569A0 (de)
NL (1) NL6919096A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026186A (en) * 1976-02-23 1977-05-31 Illinois Tool Works Inc. Self-drilling one-piece masonry anchor
US4386882A (en) * 1980-03-11 1983-06-07 Hilti Aktiengesellschaft Self-drilling anchor dowel
GB2254392A (en) * 1991-04-02 1992-10-07 Tu Hsiue Te Albert Self drilling expansion bolt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026186A (en) * 1976-02-23 1977-05-31 Illinois Tool Works Inc. Self-drilling one-piece masonry anchor
US4386882A (en) * 1980-03-11 1983-06-07 Hilti Aktiengesellschaft Self-drilling anchor dowel
GB2254392A (en) * 1991-04-02 1992-10-07 Tu Hsiue Te Albert Self drilling expansion bolt

Also Published As

Publication number Publication date
JPS4812030B1 (de) 1973-04-17
NL6919096A (de) 1970-06-23
CH516099A (de) 1971-11-30
BE743351A (de) 1970-05-28
FR2026773A1 (de) 1970-09-18
DE6812703U (de) 1969-04-10
IL33569A0 (en) 1970-02-19

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