GB191317885A - Improvements in Adjustable Mine Props. - Google Patents

Improvements in Adjustable Mine Props.

Info

Publication number
GB191317885A
GB191317885A GB191317885DA GB191317885A GB 191317885 A GB191317885 A GB 191317885A GB 191317885D A GB191317885D A GB 191317885DA GB 191317885 A GB191317885 A GB 191317885A
Authority
GB
United Kingdom
Prior art keywords
mine props
tube
holes
sand
props
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
Inventor
Christian Treinies
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
Application granted granted Critical
Publication of GB191317885A publication Critical patent/GB191317885A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

Landscapes

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

Abstract

17,885. Treinies, C. Aug. 5. Mine props.-In mine props consisting of telescopic tubes with a filling of sand &c. and provided with means for discharging the material, the upper tube b is filled with sand retained by a plug h, and is guided by a flange e on the lower end, and a split conical collar f on the upper end of the lower tube a. A number of holes is made in the tube a and a perforated rotary cap i covering these holes is formed with a notch m engaging a stop-pin.
GB191317885D 1913-08-05 1913-08-05 Improvements in Adjustable Mine Props. Expired GB191317885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191317885T 1913-08-05

Publications (1)

Publication Number Publication Date
GB191317885A true GB191317885A (en) 1913-11-20

Family

ID=34359675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191317885D Expired GB191317885A (en) 1913-08-05 1913-08-05 Improvements in Adjustable Mine Props.

Country Status (1)

Country Link
GB (1) GB191317885A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830468A (en) * 1973-06-11 1974-08-20 I Willis Trailer jack
CN104594924A (en) * 2014-11-13 2015-05-06 广东安元矿业勘察设计有限公司 Sand-filled mining prop
US11136887B2 (en) * 2019-04-11 2021-10-05 Burrell Mining Products, Inc. Mine roof support, pre-installation assembly for same, and method of installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830468A (en) * 1973-06-11 1974-08-20 I Willis Trailer jack
CN104594924A (en) * 2014-11-13 2015-05-06 广东安元矿业勘察设计有限公司 Sand-filled mining prop
CN104594924B (en) * 2014-11-13 2017-03-08 广东安元矿业勘察设计有限公司 A kind of using method of back-up sand formula mining pillar
US11136887B2 (en) * 2019-04-11 2021-10-05 Burrell Mining Products, Inc. Mine roof support, pre-installation assembly for same, and method of installation

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