GB1057157A - Improvements in and relating to mine roof supports - Google Patents
Improvements in and relating to mine roof supportsInfo
- Publication number
- GB1057157A GB1057157A GB3382364A GB3382364A GB1057157A GB 1057157 A GB1057157 A GB 1057157A GB 3382364 A GB3382364 A GB 3382364A GB 3382364 A GB3382364 A GB 3382364A GB 1057157 A GB1057157 A GB 1057157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rams
- cam
- shoe
- conveyer
- adjacent
- 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
- 238000005452 bending Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
-
- 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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1,057,157. Conveyers for mines. MASTABAR MINING EQUIPMENT CO. Ltd. Nov. 18, 1965, No. 33823/64. Heading B8A. Cam-plates 30 mounted on an articulated mine face conveyer 10 guide roof support units 18 during retraction of rams 26 such that the support units finish their movement normal to the line of the conveyer. Bending of the ram rods 28 due to the rams not being normal to the line of the conveyer is thus avoided and proper spacing of the units 18 is ensured. As each support unit is advanced, one of its front props 22 engages the adjacent cam 30 and the unit is laterally deflected. In Fig. 1 (not shown), two horizontal rams 58 operable independently of one another enable the support unit to be steered during advance. The cylinders of the rams are pivotally attached to a front shoe 46 for a single front prop 44, and each piston-rod 60 is attached to a cam-plate 50 which cooperates with a chamfered corner 48 of the shoe 46. In a modification, Fig. 2 (not shown), the rear ends of ram cylinders 64 are attached to the rear shoe 42 of the support unit. In Fig. 4 (not shown), the rams 72 are mounted within the rear shoe and are connected by link bars 74 to the cam-plates 50. Adjacent rams of adjacent support units are connected to the same cam-plate 70, thus reducing the number of cam-plates required, Fig. 3 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3382364A GB1057157A (en) | 1964-08-19 | 1964-08-19 | Improvements in and relating to mine roof supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3382364A GB1057157A (en) | 1964-08-19 | 1964-08-19 | Improvements in and relating to mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1057157A true GB1057157A (en) | 1967-02-01 |
Family
ID=10357917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3382364A Expired GB1057157A (en) | 1964-08-19 | 1964-08-19 | Improvements in and relating to mine roof supports |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1057157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1758675B1 (en) * | 1967-07-19 | 1972-05-31 | Gullick Ltd | Migrating hydraulic longwall mining |
-
1964
- 1964-08-19 GB GB3382364A patent/GB1057157A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1758675B1 (en) * | 1967-07-19 | 1972-05-31 | Gullick Ltd | Migrating hydraulic longwall mining |
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