GB977176A - Improvements relating to mineral mining machines - Google Patents
Improvements relating to mineral mining machinesInfo
- Publication number
- GB977176A GB977176A GB3476462A GB3476462A GB977176A GB 977176 A GB977176 A GB 977176A GB 3476462 A GB3476462 A GB 3476462A GB 3476462 A GB3476462 A GB 3476462A GB 977176 A GB977176 A GB 977176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulley
- sept
- chain
- power means
- improvements relating
- 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 2
- 229910052500 inorganic mineral Inorganic materials 0.000 title 1
- 239000011707 mineral Substances 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
- E21C29/145—Means for tensioning the haulage chains or cables
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)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
977,176. Tensioning haulage chains. ANDERSON BOYES & CO. Ltd. Sept. 6, 1963 [Sept. 12, 1962], No. 34764/62. Heading B8B. [Also in Division E1] A mining machine 1 is moved along a mine floor or conveyer 3 by an endless traction element 4 entrained round pulleys 5, 6, at least one pulley 6 being power driven and movable away from pulley 5 by a power means 8, 9 to eliminate slackness in the element 4, the power means 8, 9 and the drive of pulley 6 being on a common power supply. As shown, a hydraulic pump 11 rotates pulley 6 and supplies fluid to cylinder 9 simultaneously, the piston 8 having a diameter sufficient to maintain chain 4 taut during rotation of pulley 6, while allowing the elastic extension of chain 4 to relax when the fluid supply is cut. Machine 1 incorporates a shear cutter 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3476462A GB977176A (en) | 1962-09-12 | 1962-09-12 | Improvements relating to mineral mining machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3476462A GB977176A (en) | 1962-09-12 | 1962-09-12 | Improvements relating to mineral mining machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB977176A true GB977176A (en) | 1964-12-02 |
Family
ID=10369674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3476462A Expired GB977176A (en) | 1962-09-12 | 1962-09-12 | Improvements relating to mineral mining machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB977176A (en) |
-
1962
- 1962-09-12 GB GB3476462A patent/GB977176A/en not_active Expired
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