FR669367A - Expanding safety sleeve with wedge thread, unbreakable by chance for fixing screws, bolts and lag screws in wood, plaster, concrete, brick, ebonite and other materials - Google Patents

Expanding safety sleeve with wedge thread, unbreakable by chance for fixing screws, bolts and lag screws in wood, plaster, concrete, brick, ebonite and other materials

Info

Publication number
FR669367A
FR669367A FR669367DA FR669367A FR 669367 A FR669367 A FR 669367A FR 669367D A FR669367D A FR 669367DA FR 669367 A FR669367 A FR 669367A
Authority
FR
France
Prior art keywords
screws
ebonite
unbreakable
plaster
brick
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
French (fr)
Inventor
Raoul-Diaz Wagner
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
Application granted granted Critical
Publication of FR669367A publication Critical patent/FR669367A/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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/124—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting a threaded element, e.g. screw or bolt

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR669367D 1929-02-08 1929-02-08 Expanding safety sleeve with wedge thread, unbreakable by chance for fixing screws, bolts and lag screws in wood, plaster, concrete, brick, ebonite and other materials Expired FR669367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR669367T 1929-02-08

Publications (1)

Publication Number Publication Date
FR669367A true FR669367A (en) 1929-11-15

Family

ID=9015690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669367D Expired FR669367A (en) 1929-02-08 1929-02-08 Expanding safety sleeve with wedge thread, unbreakable by chance for fixing screws, bolts and lag screws in wood, plaster, concrete, brick, ebonite and other materials

Country Status (1)

Country Link
FR (1) FR669367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0546990A1 (en) * 1991-12-09 1993-06-16 HILTI Aktiengesellschaft Dowel for increasing the anchoring value of a screw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0546990A1 (en) * 1991-12-09 1993-06-16 HILTI Aktiengesellschaft Dowel for increasing the anchoring value of a screw

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