GB916018A - Improvements relating to setting multi-part pit-props - Google Patents

Improvements relating to setting multi-part pit-props

Info

Publication number
GB916018A
GB916018A GB1391559A GB1391559A GB916018A GB 916018 A GB916018 A GB 916018A GB 1391559 A GB1391559 A GB 1391559A GB 1391559 A GB1391559 A GB 1391559A GB 916018 A GB916018 A GB 916018A
Authority
GB
United Kingdom
Prior art keywords
props
rams
april
power unit
improvements relating
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
GB1391559A
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
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 Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Publication of GB916018A publication Critical patent/GB916018A/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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
    • E21D15/588—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded the lock also being activated

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)
  • Clamps And Clips (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

916,018. Assembling force fits. GUTEHOFFNUNGSHUTTE STERKRADE A.G. April 23, 1959 [April 23, 1958], No. 13915/59. Drawings to Specification. Class 83 (4). [Also in Group XXIX] A removable hydraulic device for uniformly setting and uniformly tightening and wedging the clamps of telescopic pit-props comprises a portable unit containing three double-acting rams to engage the prop and a power unit. The rams respectively set, tighten and wedge the props and a slide-valve is automatically actuated when a predetermined pressure has been attained to return the rams to their initial state. The power unit comprises an hydraulic pressure generator driven by a pneumatic motor and automatic control gear.
GB1391559A 1958-04-23 1959-04-23 Improvements relating to setting multi-part pit-props Expired GB916018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG24379A DE1132522B (en) 1958-04-23 1958-04-23 Removable hydraulic device for setting and tensioning multi-part pit punches

Publications (1)

Publication Number Publication Date
GB916018A true GB916018A (en) 1963-01-16

Family

ID=7122401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1391559A Expired GB916018A (en) 1958-04-23 1959-04-23 Improvements relating to setting multi-part pit-props

Country Status (3)

Country Link
BE (1) BE577889A (en)
DE (1) DE1132522B (en)
GB (1) GB916018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022093A (en) * 2020-01-07 2020-04-17 广州力寄采矿设备有限公司 Automatic support column erecting machine for mine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE853735C (en) * 1950-09-12 1952-10-27 Eugen Muething Hydraulic setting device for pit punch
DE950183C (en) * 1953-02-26 1956-10-04 August Bilstein G M B H Hydraulic lifting device, in particular for setting pit punches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022093A (en) * 2020-01-07 2020-04-17 广州力寄采矿设备有限公司 Automatic support column erecting machine for mine

Also Published As

Publication number Publication date
BE577889A (en) 1959-08-17
DE1132522B (en) 1962-07-05

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