ES267131A1 - An anchoring device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding) - Google Patents

An anchoring device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES267131A1
ES267131A1 ES0267131A ES267131A ES267131A1 ES 267131 A1 ES267131 A1 ES 267131A1 ES 0267131 A ES0267131 A ES 0267131A ES 267131 A ES267131 A ES 267131A ES 267131 A1 ES267131 A1 ES 267131A1
Authority
ES
Spain
Prior art keywords
sleeve
translation
machine
legally binding
google translate
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
ES0267131A
Other languages
Spanish (es)
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.)
Forges & Boulonneries Hermant
Original Assignee
Forges & Boulonneries Hermant
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 Forges & Boulonneries Hermant filed Critical Forges & Boulonneries Hermant
Publication of ES267131A1 publication Critical patent/ES267131A1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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

Abstract

An anchoring device, especially for underground gallery roof bolts of the type having a radially expandable sleeve formed by several shells inside of which ramps cooperating with wedges made on a bar inserted axially in the sleeve or on a sleeve are practiced. piece appropriately fitted on the threaded end of this bar, characterized in that the slopes of the branches and wedges are made so that in the final expansion position the shells of the sleeve are further apart in their upper part that tilts towards the exterior resting on the wedges in the lower area of the ramps, the sleeve adopting the shape of a V. (Machine-translation by Google Translate, not legally binding)
ES0267131A 1961-04-13 1961-05-04 An anchoring device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding) Expired ES267131A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR858649A FR1294271A (en) 1961-04-13 1961-04-13 Anchoring device, in particular for roof bolts of underground galleries

Publications (1)

Publication Number Publication Date
ES267131A1 true ES267131A1 (en) 1961-08-16

Family

ID=8752985

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0267131A Expired ES267131A1 (en) 1961-04-13 1961-05-04 An anchoring device, especially for roof bolts of underground galleries (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES267131A1 (en)
FR (1) FR1294271A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442562A (en) * 1982-05-07 1984-04-17 Russo Peter J Method of forming anchor bolts

Also Published As

Publication number Publication date
FR1294271A (en) 1962-05-26

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