GB1104428A - Travelling hydraulic support frames for mine roofs - Google Patents
Travelling hydraulic support frames for mine roofsInfo
- Publication number
- GB1104428A GB1104428A GB1151965A GB1151965A GB1104428A GB 1104428 A GB1104428 A GB 1104428A GB 1151965 A GB1151965 A GB 1151965A GB 1151965 A GB1151965 A GB 1151965A GB 1104428 A GB1104428 A GB 1104428A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- spring
- roof
- socket
- mine
- 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
Links
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
1,104,428. Mine-roof supports. GEWERKSCHAFT. EISENHUTTE WESTFALIA. 18, March, 1965 [19, March, 1964; 13, June, 1964], No. 11519/65. Heading EIE. In a travelling hydraulic support frame for mine roofs, an extendible hydraulic prop 2, 3 (Fig. 1) is operably associated with a support member 9 engaging the roof and a spring element 6 is between the prop 2, 3 and the member 9, so that when the prop 2, 3 is retracted, the member 9 is kept in resilient roof contact by the spring 6 and when extended, the spring 6 is compressed, the prop 2, 3 urging the member 9 against the roof. There is a ball-and-socket joint 5, 6 at the top of the prop 2, 3 and the spring 6 may be secured to the socket 5 or it may rest against it, the socket 5 being constrained against moving horizontally relative to the member 9 by the latter's channel walls. The ends of the spring 6 are bent over and engage withdrawable bolts 8 on prop retraction. In a modification the spring 6 is secured directly to the prop, the ball part 4 being retained in the part 5 in the prop by a retaining ring, and has a portion slidable axially of the prop. The spring 6 is divided by the prop into two portions, pivotally attached thereto, and may have extensions converging towards the prop, to maintain the member perpendicular thereto, or separate further springs to do so.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG0040143 | 1964-03-19 | ||
DEG40855A DE1230746B (en) | 1964-06-13 | 1964-06-13 | Hydraulic longwall frame |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1104428A true GB1104428A (en) | 1968-02-28 |
Family
ID=25978594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1151965A Expired GB1104428A (en) | 1964-03-19 | 1965-03-18 | Travelling hydraulic support frames for mine roofs |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE661244A (en) |
GB (1) | GB1104428A (en) |
NL (1) | NL6503413A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2401902A (en) * | 2003-05-19 | 2004-11-24 | Dbt Gmbh | Connection for a lift cylinder arrangement of a hydraulic support frame |
GB2416798A (en) * | 2004-08-02 | 2006-02-08 | Dbt Gmbh | A prop head bearing |
CN109538264A (en) * | 2019-01-10 | 2019-03-29 | 江苏中贵重工有限公司 | A kind of suspension device |
CN112282816A (en) * | 2020-10-28 | 2021-01-29 | 贵州理工学院 | Roadway support device capable of being deployed rapidly |
-
1965
- 1965-03-17 BE BE661244D patent/BE661244A/xx unknown
- 1965-03-17 NL NL6503413A patent/NL6503413A/xx unknown
- 1965-03-18 GB GB1151965A patent/GB1104428A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2401902A (en) * | 2003-05-19 | 2004-11-24 | Dbt Gmbh | Connection for a lift cylinder arrangement of a hydraulic support frame |
GB2401902B (en) * | 2003-05-19 | 2005-04-20 | Dbt Gmbh | Lift cylinder arrangement |
US6991407B2 (en) | 2003-05-19 | 2006-01-31 | Dbt Gmbh | Lift cylinder assembly |
AU2004201864B2 (en) * | 2003-05-19 | 2008-06-26 | Caterpillar Inc. | Lift cylinder arrangement |
GB2416798A (en) * | 2004-08-02 | 2006-02-08 | Dbt Gmbh | A prop head bearing |
US7201541B2 (en) | 2004-08-02 | 2007-04-10 | Dbt Gmbh | Prop head bearing |
GB2416798B (en) * | 2004-08-02 | 2008-08-20 | Dbt Gmbh | A prop head bearing |
CN109538264A (en) * | 2019-01-10 | 2019-03-29 | 江苏中贵重工有限公司 | A kind of suspension device |
CN112282816A (en) * | 2020-10-28 | 2021-01-29 | 贵州理工学院 | Roadway support device capable of being deployed rapidly |
CN112282816B (en) * | 2020-10-28 | 2022-08-12 | 贵州理工学院 | Roadway support device capable of being deployed rapidly |
Also Published As
Publication number | Publication date |
---|---|
BE661244A (en) | 1965-09-17 |
NL6503413A (en) | 1965-09-20 |
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