PL254324A1 - Roof support for use in crumpable beds - Google Patents
Roof support for use in crumpable bedsInfo
- 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
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
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 (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998015755A1 (en) * | 1996-10-09 | 1998-04-16 | The B.F. Goodrich Co. | Dry media suspension system for aircraft |
EP2536919B1 (en) * | 2010-02-19 | 2014-04-23 | Council of Scientific and Industrial Research | A device for roof support of underground mine/tunnel |
Family Cites Families (5)
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 |
-
1985
- 1985-07-01 PL PL25432485A patent/PL254324A1/en unknown
-
1986
- 1986-06-27 DE DE19863621506 patent/DE3621506A1/en not_active Withdrawn
- 1986-07-01 GB GB8615991A patent/GB2177476A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8615991D0 (en) | 1986-08-06 |
GB2177476A (en) | 1987-01-21 |
DE3621506A1 (en) | 1987-01-08 |
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