GB797663A - Apparatus for testing pit-props - Google Patents

Apparatus for testing pit-props

Info

Publication number
GB797663A
GB797663A GB1080154A GB1080154A GB797663A GB 797663 A GB797663 A GB 797663A GB 1080154 A GB1080154 A GB 1080154A GB 1080154 A GB1080154 A GB 1080154A GB 797663 A GB797663 A GB 797663A
Authority
GB
United Kingdom
Prior art keywords
tub
pillars
pressure
prop
april
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
GB1080154A
Inventor
Wilhelm Heusner
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.)
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
Original Assignee
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
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 EBERHARD VON CAMPENHAUSEN, WILLY EGGEMANN filed Critical EBERHARD VON CAMPENHAUSEN
Priority to GB1080154A priority Critical patent/GB797663A/en
Priority to DESCH16568A priority patent/DE1014506B/en
Publication of GB797663A publication Critical patent/GB797663A/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
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices
    • E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details

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)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

797,663. Testing pit props. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SCHWARZ KOMM.-GES., H.]. April 6, 1955 [April 13, 1954], No. 10801/54. Class 20(2) Apparatus for testing pit props under load in mines is mounted on a wheeled tub 11. The prop is placed between pressure plates 15, 19 and pressure exerted on it by a hydraulic pump and ram 13 mounted in a frame comprising a base 12 and head bar 18 connected by telescopically adjustable pillars 16, 17. The apparatus is mounted on an end wall of the tub which is hinged to allow the apparatus to be swung upright to rest on supports 20 for use or to be swung down on to the tub for transport. In a modification, the apparatus is used lying on its side in the tub and one side of the tub is swung down to allow access to it. Each of the telescopic parts of the pillars may be connected to one wheel axle the spacing between which thus varies with the extension of the pillars or the pillars may slide in tubular members rigid with the tub. Pressure may be exerted on the prop by electrical or other power driven device.
GB1080154A 1954-04-13 1954-04-13 Apparatus for testing pit-props Expired GB797663A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1080154A GB797663A (en) 1954-04-13 1954-04-13 Apparatus for testing pit-props
DESCH16568A DE1014506B (en) 1954-04-13 1954-10-22 Testing device for pit stamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080154A GB797663A (en) 1954-04-13 1954-04-13 Apparatus for testing pit-props

Publications (1)

Publication Number Publication Date
GB797663A true GB797663A (en) 1958-07-09

Family

ID=9974519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080154A Expired GB797663A (en) 1954-04-13 1954-04-13 Apparatus for testing pit-props

Country Status (2)

Country Link
DE (1) DE1014506B (en)
GB (1) GB797663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413849A (en) * 1965-12-30 1968-12-03 Wortso Corp Laboratory bedding test machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078968B (en) * 1958-04-15 1960-04-07 Bochumer Ges Fuer Grubenausbau For test device that is used for relatively displaceably tensioned arch segments
DE3613444C2 (en) * 1986-04-21 1994-03-31 Lewin Heinz Ulrich Device for testing pit punches

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1009964A (en) * 1948-07-16 1952-06-05 Saarlandische Brennstoff Techn Device for producing pre-tension in mine props

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413849A (en) * 1965-12-30 1968-12-03 Wortso Corp Laboratory bedding test machine

Also Published As

Publication number Publication date
DE1014506B (en) 1957-08-29

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