GB654868A - Improvements relating to a method and apparatus for mining - Google Patents
Improvements relating to a method and apparatus for miningInfo
- Publication number
- GB654868A GB654868A GB3201448A GB3201448A GB654868A GB 654868 A GB654868 A GB 654868A GB 3201448 A GB3201448 A GB 3201448A GB 3201448 A GB3201448 A GB 3201448A GB 654868 A GB654868 A GB 654868A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scoops
- face
- scoop
- movement
- exerted
- 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
- 238000005065 mining Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 238000005520 cutting process Methods 0.000 abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 3
- 239000011707 mineral Substances 0.000 abstract 3
- 239000003245 coal Substances 0.000 abstract 2
- 230000001788 irregular Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
- E21C27/42—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements combined with scraper or collector box
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Wire Processing (AREA)
Abstract
654,868. Mineral mining machines HAARMANN, A. Dec. 10, 1948, No. 32014. [Class 68 (i)] A mineral mining machine is maintained against a face by a resilient force exerted on the machine in a direction substantially at right angles to that of the movement of the machine during the cutting operation. The machine comprises a plurality of scoops 6 secured at irregular intervals to a cable which is given a reciprocatory movement so that the side of the scoop adjacent and parallel to the face and provided on the leading edge with a plurality of spaced teeth 20 cuts grooves in the face during the advance of the scoop whilst on the return movement a closely set group of teeth 38 on the trailing edge removes the mineral that is left outstanding between the grooves cut during the forward stroke. The dislodged coal is carried forward into the path of the scoop ahead which in turn carries it further forward, the pivoted plates 60 forming the rear of the scoops riding over the dislodged coal on the return stroke. The scoops are urged against the face by a guide rail 12 formed of loosely interconnected rails of a U-channel with a half cylindrical rolled section 14 welded to the lower flange of the channel to facilitate sliding. The front and rear cutting edges of the scoop may be of a horizontal V-shape and are asymmetrical so that a downward force is exerted on the cutting edge whilst the under surface approximates to a flat arc 41 in the longitudinal direction. The scoops can be formed of articulated sections and weight is concentrated low in the side walls. At the ends of each rail is a pneumatic jack 15 the cylinder of which bears against the rail and the piston rod 17 against a roof support 18 so that when compressed air is admitted to the cylinder a resilient force is exerted on the guide rail. A check lever mounted on the cylinder 15 and acting on an abutment on the piston rod limits the resilient movement of the jack but this lever can be disengaged and the jack used to advance the guide rail on which it acts so that the scoops are moved up to the new workmg face. The resilient force exerted by the ram can be transformed into a rigid thrust by a hand operated pawl engaging teeth on the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3201448A GB654868A (en) | 1948-12-10 | 1948-12-10 | Improvements relating to a method and apparatus for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3201448A GB654868A (en) | 1948-12-10 | 1948-12-10 | Improvements relating to a method and apparatus for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654868A true GB654868A (en) | 1951-07-04 |
Family
ID=10331749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3201448A Expired GB654868A (en) | 1948-12-10 | 1948-12-10 | Improvements relating to a method and apparatus for mining |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB654868A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE941271C (en) * | 1942-09-17 | 1956-04-05 | Wilhelm Baecker | Coal extraction scrapers |
| DE1021310B (en) * | 1952-08-30 | 1957-12-27 | Maschfab Eisengiesserei Beien | Face conveyor |
| WO2007028503A1 (en) * | 2005-09-09 | 2007-03-15 | Bucyrus Dbt Europe Gmbh | Arrangement for extracting extraction products in underground extraction operations in caving |
-
1948
- 1948-12-10 GB GB3201448A patent/GB654868A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE941271C (en) * | 1942-09-17 | 1956-04-05 | Wilhelm Baecker | Coal extraction scrapers |
| DE1021310B (en) * | 1952-08-30 | 1957-12-27 | Maschfab Eisengiesserei Beien | Face conveyor |
| WO2007028503A1 (en) * | 2005-09-09 | 2007-03-15 | Bucyrus Dbt Europe Gmbh | Arrangement for extracting extraction products in underground extraction operations in caving |
| US7779984B2 (en) | 2005-09-09 | 2010-08-24 | Bucyrus Dbt Europe Gmbh | Arrangement for extracting extraction products in underground extraction operations in caving |
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