CA515957A - Mine roof bolt - Google Patents

Mine roof bolt

Info

Publication number
CA515957A
CA515957A CA515957A CA515957DA CA515957A CA 515957 A CA515957 A CA 515957A CA 515957 A CA515957 A CA 515957A CA 515957D A CA515957D A CA 515957DA CA 515957 A CA515957 A CA 515957A
Authority
CA
Canada
Prior art keywords
mine roof
roof bolt
bolt
mine
roof
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
CA515957A
Other languages
French (fr)
Inventor
B. Dempsey Joseph
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
Publication date
Application granted granted Critical
Publication of CA515957A publication Critical patent/CA515957A/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
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
CA515957A Mine roof bolt Expired CA515957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA515957T

Publications (1)

Publication Number Publication Date
CA515957A true CA515957A (en) 1955-08-23

Family

ID=35667049

Family Applications (1)

Application Number Title Priority Date Filing Date
CA515957A Expired CA515957A (en) Mine roof bolt

Country Status (1)

Country Link
CA (1) CA515957A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025742A (en) * 1957-04-19 1962-03-20 Goldenberg & Cie Ets Anchor bolt comprising separate shells having inclined ramp surfaces to be expanded by a wedge-shaped block drawn therebetween
US5018908A (en) * 1989-10-31 1991-05-28 American Mining Supply, Inc. Anchor assembly for a mine roof bolt
US5087160A (en) * 1988-04-12 1992-02-11 American Mining Supply, Inc. Anchor bolt and expansion shell assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025742A (en) * 1957-04-19 1962-03-20 Goldenberg & Cie Ets Anchor bolt comprising separate shells having inclined ramp surfaces to be expanded by a wedge-shaped block drawn therebetween
US5087160A (en) * 1988-04-12 1992-02-11 American Mining Supply, Inc. Anchor bolt and expansion shell assembly
US5018908A (en) * 1989-10-31 1991-05-28 American Mining Supply, Inc. Anchor assembly for a mine roof bolt

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