GB1217435A - A self expanding sheel for engagement in a mine roof - Google Patents

A self expanding sheel for engagement in a mine roof

Info

Publication number
GB1217435A
GB1217435A GB39850/69A GB3985069A GB1217435A GB 1217435 A GB1217435 A GB 1217435A GB 39850/69 A GB39850/69 A GB 39850/69A GB 3985069 A GB3985069 A GB 3985069A GB 1217435 A GB1217435 A GB 1217435A
Authority
GB
United Kingdom
Prior art keywords
segments
opening
hooks
shell
extensions
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
GB39850/69A
Inventor
Claude Carlos White
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
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 Individual filed Critical Individual
Publication of GB1217435A publication Critical patent/GB1217435A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means
    • 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
    • F16B13/065—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 the screw, nail or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/913—Self-expanding anchor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)

Abstract

1,217,435. Expandable fasteners. C. C. WHITE. 8 Aug., 1969 [4 April. 1969], No. 39850/69. Heading F2H. A self-expanding shell for engagement with a roof bolt 28 in a mine roof opening 20 comprises a plurality of flexible segments 32 connected at their lower ends to a portion 26 for receiving the roof bolt 28 and provided at their upper ends with extensions 36 which, before expansion of the shell, are arranged to co-operate with a retaining member 40 which prevents outward flexing of the segments 32. As shown, the retaining member 40 is tubular and is provided with windows 44 through which are able to extend hooks 38 provided on the extensions 36, the hooks 38 so engaging the tubular member 40 that the segments 32 are prevented from expanding. As the shell is pushed into the mine roof opening 20, the retaining member 40 abuts the end wall of the opening and upon continued displacement of the shell in the opening the hooks 38 become freed from the member 40 whereby the segments expand radially outwardly due to their inherent resilience to assume a conical shape complementary to the portion 22 of the opening 20. The segments 32 are connected by reduced portions 30 to the bolt receiving portion 26 and only some of the segments need be provided with extensions 36 and hooks 38. Prior to use, a pin (46), (Fig. 1, not shown) may be employed to retain the member 40 and segments 32 together.
GB39850/69A 1969-04-04 1969-08-08 A self expanding sheel for engagement in a mine roof Expired GB1217435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81365669A 1969-04-04 1969-04-04

Publications (1)

Publication Number Publication Date
GB1217435A true GB1217435A (en) 1970-12-31

Family

ID=25213028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39850/69A Expired GB1217435A (en) 1969-04-04 1969-08-08 A self expanding sheel for engagement in a mine roof

Country Status (2)

Country Link
US (1) US3555960A (en)
GB (1) GB1217435A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193940A (en) * 1991-08-23 1993-03-16 Dyckerhoff & Widmann Ag Mine roof support system
ITTO20060599A1 (en) * 2006-08-11 2008-02-12 Itw Construction Products Ital ANCHOR OF ANCHOR OF WOOD OR METAL STRUCTURES WITH A WALL
US11300147B2 (en) * 2018-07-03 2022-04-12 Roller Bearing Company Of America, Inc. Sleeves for interference fasteners

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104582A (en) * 1959-01-14 1963-09-24 Claude C White Resilient shell with enlarged end for engagement in a mine roof
US3211044A (en) * 1963-05-08 1965-10-12 Claude C White Mine roof expansion shell

Also Published As

Publication number Publication date
US3555960A (en) 1971-01-19

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