GB776249A - Improvements in or relating to means for obtaining an anchorage - Google Patents

Improvements in or relating to means for obtaining an anchorage

Info

Publication number
GB776249A
GB776249A GB378553A GB378553A GB776249A GB 776249 A GB776249 A GB 776249A GB 378553 A GB378553 A GB 378553A GB 378553 A GB378553 A GB 378553A GB 776249 A GB776249 A GB 776249A
Authority
GB
United Kingdom
Prior art keywords
tie
rod
anchor member
end portion
feb
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
GB378553A
Inventor
James Irving
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.)
BAYLISS JONES AND BAYLISS Ltd
Original Assignee
BAYLISS JONES AND BAYLISS Ltd
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 BAYLISS JONES AND BAYLISS Ltd filed Critical BAYLISS JONES AND BAYLISS Ltd
Priority to GB378553A priority Critical patent/GB776249A/en
Publication of GB776249A publication Critical patent/GB776249A/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
    • F16B13/061—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 of the buckling type

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)
  • Piles And Underground Anchors (AREA)

Abstract

776,249. Anchor bolts. BAYLISS, JONES & BAYLISS, Ltd. Feb. 11, 1954 [Feb. 11, 1953; Feb. 29, 1953], Nos. 3785/53 and 26665/53. Class-89 (1). A tie bolt assembly includes a sleeve like anchor member 10 comprising end portions 12, 13 integrally united by an intermediate portion 14 provided with longitudinal slots or slits 15 and adapted to bow outwardly in response to longitudinal compression, and a tie-rod 11 having a head 19 not substantially exceeding the initial outer crosssectional dimensions of the anchor member 10 and non-threadably engaged with an axially directed abutment face on the end portion 13. The member 10 is preferably formed of hot drawn seamless steel tube of a ductile quality and annealed, the carbon content being, for example, between 0.1 and 0.2 per cent. The tie-rod 11 is also preferably formed of mild steel although both the anchor member and the tie-rod could be formed of alloys. Four slots 15 are preferably formed in the anchor member 10 and the limb 16 between them are pre-bowed so that the apex 17 is offset from the centre of the limbs towards the end portion 13. When the assembly is inserted into a bore-hole a tubular tool provided at its outer end with a pressureplate is passed over the shank 11 until it engages the end portion 12 and the tie-rod protrudes through an aperture in the pressureplate. Expansion of the anchor member is now effected by screwing a nut on to the protruding end of the tie-rod until an enlargement 23 is produced in the bore-hole. In relatively hard strata the limbs 16 fold back over the end portion 13 as shown in Fig. 3 and thus strengthen this against outward expansion to prevent the tie-rod from pulling through. To hold the anchor member in place on the tie-rod during insertion into a bore-hole a fillet weld 21 may be made or, alternatively, a frictional fit may be relied on. Dimensions for the anchor member and tie-rod are specified. Specification 776,251 is referred to.
GB378553A 1953-02-11 1953-02-11 Improvements in or relating to means for obtaining an anchorage Expired GB776249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB378553A GB776249A (en) 1953-02-11 1953-02-11 Improvements in or relating to means for obtaining an anchorage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB378553A GB776249A (en) 1953-02-11 1953-02-11 Improvements in or relating to means for obtaining an anchorage

Publications (1)

Publication Number Publication Date
GB776249A true GB776249A (en) 1957-06-05

Family

ID=9764871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB378553A Expired GB776249A (en) 1953-02-11 1953-02-11 Improvements in or relating to means for obtaining an anchorage

Country Status (1)

Country Link
GB (1) GB776249A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373630A (en) * 1966-04-29 1968-03-19 Gen Motors Corp Steering column assembly
US3958488A (en) * 1973-06-15 1976-05-25 Artur Fischer Expansible anchor
FR2435626A1 (en) * 1978-05-25 1980-04-04 Olin Corp Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened
US4339864A (en) * 1979-10-29 1982-07-20 Seregely Daniel W Method of forming interlocking pipe joint
EP0168349A1 (en) * 1984-07-09 1986-01-15 HILTI Aktiengesellschaft Expansion-dowel
GB2202600A (en) * 1987-03-24 1988-09-28 Boart Yielding rock bolt
EP0385117A2 (en) * 1989-02-28 1990-09-05 Karl Eischeid Expandible plug for undercut holes
CN102597423A (en) * 2009-09-24 2012-07-18 阿特拉斯·科普科Mai有限公司 Friction bolt
CN104265339A (en) * 2014-09-19 2015-01-07 辽宁工程技术大学 Extrusion and friction type energy absorption anchor rod
CN106884837A (en) * 2017-03-30 2017-06-23 红塔烟草(集团)有限责任公司 The expansion bolt that a kind of easy taking-up can be reused

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373630A (en) * 1966-04-29 1968-03-19 Gen Motors Corp Steering column assembly
US3958488A (en) * 1973-06-15 1976-05-25 Artur Fischer Expansible anchor
FR2435626A1 (en) * 1978-05-25 1980-04-04 Olin Corp Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened
US4339864A (en) * 1979-10-29 1982-07-20 Seregely Daniel W Method of forming interlocking pipe joint
EP0168349A1 (en) * 1984-07-09 1986-01-15 HILTI Aktiengesellschaft Expansion-dowel
GB2202600A (en) * 1987-03-24 1988-09-28 Boart Yielding rock bolt
EP0385117A2 (en) * 1989-02-28 1990-09-05 Karl Eischeid Expandible plug for undercut holes
EP0385117A3 (en) * 1989-02-28 1992-03-25 Karl Eischeid Expandible plug for undercut holes
CN102597423A (en) * 2009-09-24 2012-07-18 阿特拉斯·科普科Mai有限公司 Friction bolt
CN104265339A (en) * 2014-09-19 2015-01-07 辽宁工程技术大学 Extrusion and friction type energy absorption anchor rod
CN104265339B (en) * 2014-09-19 2016-08-24 辽宁工程技术大学 A kind of extruding, friction-type energy-absorption anchor rod
CN106884837A (en) * 2017-03-30 2017-06-23 红塔烟草(集团)有限责任公司 The expansion bolt that a kind of easy taking-up can be reused
CN106884837B (en) * 2017-03-30 2023-09-01 红塔烟草(集团)有限责任公司 Expansion bolt capable of being taken out easily and being reused

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