PL254324A1 - Roof support for use in crumpable beds - Google Patents

Roof support for use in crumpable beds

Info

Publication number
PL254324A1
PL254324A1 PL25432485A PL25432485A PL254324A1 PL 254324 A1 PL254324 A1 PL 254324A1 PL 25432485 A PL25432485 A PL 25432485A PL 25432485 A PL25432485 A PL 25432485A PL 254324 A1 PL254324 A1 PL 254324A1
Authority
PL
Poland
Prior art keywords
crumpable
beds
roof support
roof
support
Prior art date
Application number
PL25432485A
Inventor
Zdzislaw Sender
Jeremi Maciejewski
Leonard Liduchowski
Ryszard Borowik
Original Assignee
Katowickie Gwarectwo Weglowe K
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 Katowickie Gwarectwo Weglowe K filed Critical Katowickie Gwarectwo Weglowe K
Priority to PL25432485A priority Critical patent/PL254324A1/en
Priority to DE19863621506 priority patent/DE3621506A1/en
Priority to GB8615991A priority patent/GB2177476A/en
Publication of PL254324A1 publication Critical patent/PL254324A1/en

Links

Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/003—Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
PL25432485A 1985-07-01 1985-07-01 Roof support for use in crumpable beds PL254324A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL25432485A PL254324A1 (en) 1985-07-01 1985-07-01 Roof support for use in crumpable beds
DE19863621506 DE3621506A1 (en) 1985-07-01 1986-06-27 UNDERGROUND EXTENSION, ESPECIALLY DESTROYING HAZARD HAZARDED BY MOUNTAIN BLOWING
GB8615991A GB2177476A (en) 1985-07-01 1986-07-01 Hydraulic support for mine roof linings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25432485A PL254324A1 (en) 1985-07-01 1985-07-01 Roof support for use in crumpable beds

Publications (1)

Publication Number Publication Date
PL254324A1 true PL254324A1 (en) 1987-03-09

Family

ID=20027401

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25432485A PL254324A1 (en) 1985-07-01 1985-07-01 Roof support for use in crumpable beds

Country Status (3)

Country Link
DE (1) DE3621506A1 (en)
GB (1) GB2177476A (en)
PL (1) PL254324A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0929760A1 (en) * 1996-10-09 1999-07-21 The B.F. Goodrich Company Dry media suspension system for aircraft
AU2011216967B2 (en) * 2010-02-19 2016-10-20 Council Of Scientific & Industrial Research A device for roof support of underground mine/tunnel
CN112648332B (en) * 2020-12-03 2025-01-21 北京科技大学 A spherical cell trapezoidal deformation mine pressure controller and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB748469A (en) * 1952-11-12 1956-05-02 Applic Mach Motrices An improved hydraulic shock absorber
GB881242A (en) * 1959-02-13 1961-11-01 Paul Hollis Taylor Liquid spring and shock-strut suspensions for aircraft and vehicles
GB1050662A (en) * 1963-05-21 1900-01-01
FR1483611A (en) * 1965-06-18 1967-09-06
HU183739B (en) * 1981-12-15 1984-05-28 Tatabanyai Szenbanyak Hydraulic cylinder of combination operation particularly prop

Also Published As

Publication number Publication date
GB2177476A (en) 1987-01-21
DE3621506A1 (en) 1987-01-08
GB8615991D0 (en) 1986-08-06

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