Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically
Patent
1979-06-12
1981-03-03
Purser, Ernest R.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Cutter shiftable vertically
299 89, E21C 2724
Patent
active
042537053
ABSTRACT:
A continuous mining machine has a mobile body portion with a boom member pivotally secured thereto and extending forwardly therefrom. A cylindrical drum member is rotatably mounted on front of the boom member and includes a cylindrical intermediate section and a pair of end sections extending outwardly from the intermediate section. Cutting elements for dislodging material from a mine face extend from the respective drum sections. The cutting elements of the end sections are spaced from the adjacent cutting elements of the intermediate section by a pair of openings separating the intermediate section from the end sections respectively. A pair of nonrotatable housing assemblies extending forwardly from the boom member extend around the pair of openings. Each housing assembly has a tubular portion through which input shafts extend to transmit rotation to each of the end sections and therefrom by shafts extending from the end sections to the intermediate section to rotate the intermediate section. Each housing assembly has a body portion extending around the respective opening between the drum member sections and includes an outwardly projecting portion provided with tapered sidewalls that terminate in an edge portion. The housing tapered edge portions are operable to dislodge material from the mine face in front of the pair of openings between the end sections and the intermediate section so that a kerf is cut from the mine face extending along the entire length of the drum member.
REFERENCES:
patent: 2808253 (1957-10-01), Miller
patent: 3773384 (1973-11-01), Anderson
patent: 3774969 (1973-11-01), LeBegue
patent: 3966257 (1976-06-01), Shah
patent: 4076316 (1978-02-01), LeBegue
Adams John M.
National Mine Service Company
Price, Jr,. Stanley J.
Purser Ernest R.
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