GB1333231A - Mining machine - Google Patents
Mining machineInfo
- Publication number
- GB1333231A GB1333231A GB4976270A GB4976270A GB1333231A GB 1333231 A GB1333231 A GB 1333231A GB 4976270 A GB4976270 A GB 4976270A GB 4976270 A GB4976270 A GB 4976270A GB 1333231 A GB1333231 A GB 1333231A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- drum
- shaft
- cutter
- overlapping
- 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
- 239000000463 material Substances 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 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
- E21C27/24—Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face
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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
1333231 Mineral mining machines NATIONAL MINE SERVICE CO 20 Oct 1970 [16 March 1970] 49762/70 Heading E1F A mining machine has a cutter drum which may be lengthened by extending its two end sections from its centre section, the adjacent section ends overlapping so that drum-mounted cutters will dislodge material along the whole drum length. Cutter drum 60, Fig. 1, has cutter bits 144 and is rotatably mounted on arms 42, 44 which are movable by jack 52 outwardly from boom members 28, 30 which are pivotable vertically on the machine 10. The drum has centre section 72 and two end sections 74, 78 and 76, 80. Each end section, Fig. 5, is mounted on a shaft 90 which is rotatably supported by ends 82 of arm 42 or 44. Each shaft 90 to slide on associated shaft 128 until gear 96 and is splined on a shaft 128 rigid with section 72. Section walls 108, 118, 120 are angled to provide overlapping section ends. The adjacent walls may not be parallel to one another. The retraction of jack 52 causes each shaft 90 to slide on associated shaft 128 until the section walls 108, 118, 120 abut. Endless cutter chains 162, 164 are movable by the drum to dislodge material in front of arms 42, 44. Alternatively, Fig. 7, the overlapping ends are formed by projections on and recesses in the sections. (For Figures see next page)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1985470A | 1970-03-16 | 1970-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1333231A true GB1333231A (en) | 1973-10-10 |
Family
ID=21795389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4976270A Expired GB1333231A (en) | 1970-03-16 | 1970-10-20 | Mining machine |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA936882A (en) |
GB (1) | GB1333231A (en) |
ZA (1) | ZA707126B (en) |
-
1970
- 1970-10-20 ZA ZA707126A patent/ZA707126B/en unknown
- 1970-10-20 CA CA096031A patent/CA936882A/en not_active Expired
- 1970-10-20 GB GB4976270A patent/GB1333231A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA707126B (en) | 1972-05-31 |
CA936882A (en) | 1973-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |