US3774969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous mining machine
Assignee: Tamrock World Corp NV
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Filing: 1971-12-22
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Granted: 1973-11-27
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Expires: 1991-12-22
Abstract
Abstract The continuous mining machine includes a body portion mounted on endless tracks with a boom member pivotally secured thereto and extending forwardly therefrom. A drum member is rotatably mounted on the front end of the boom member and has cutting elements extending therefrom. The drum member has a pair of axially aligned intermediate sections and a pair of end sections arranged in non-parallel relation with the intermediate sections, and extending forwardly relative thereto. Along the front portion of the drum member the end section inner edge portions are positioned closely adjacent to the outer edge portions of the intermediate sections so that the cutting elements extending therefrom overlap to provide a continuous cutting pattern along the drum member front portion. The drum member end section inner edge portions are spaced from the intermediate section outer edge portions along the rear portion of the drum member to provide an opening between the end sections and the intermediate sections along the rear portion of the drum. The boom member has front end portions extending through the openings into the inner portion of the drum member to rotatably support the drum member. The drum member drive means includes an input shaft extending through the opening and drivingly connected through a planetary gear arrangement within the drum member intermediate sections to the drum member intermediate section and end section. A universal connection is provided between the planetary gear arrangement and the drum member end section.
Inventors
- 👤 M Lebegue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:07
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/24
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
147 words
A continuous mining machine comprising, an elongated body portion mounted on propelling means, a boom member pivotally secured to said body portion and extending forwardly therefrom, a drum member rotatably mounted on the front of said boom member transversely to said body portion, said drum member having cutting elements extending therefrom, said drum member having an intermediate portion and a pair of end sections, said end sections extending angularly to said intermediate portion so that certain of said cutting elements mounted on said drum member overlap along the front of said drum member to provide a continuous cutting pattern along the length of said drum member, a portion of said pair of said drum member end sections spaced from said drum member intermediate portion and forming a pair of openings therebetween, and drive means for rotating said drum member extending through said openings into said drum member.
Claim 2
Dependent Claim
147 words
A continuous mining machine comprising, an elongated body portion mounted on propelling means, a boom member pivotally secured to said body portion and extending forwardly therefrom, a drum member rotatably mounted on the front of said boom member transversely to said body portion, said drum member having cutting elements extending therefrom, said drum member having an intermediate portion and a pair of end sections, said end sections extending angularly to said intermediate portion so that certain of said cutting elements mounted on said drum member overlap along the front of said drum member to provide a continuous cutting pattern along the length of said drum member, a portion of said pair of said drum member end sections spaced from said drum member intermediate portion and forming a pair of openings therebetween, and drive means for rotating said drum member extending through said openings into said drum member.
Claim 3
Dependent Claim
96 words
A continuous mining machine as set forth in claim 1 in which, said drum member intermediate portion includes an intermediate section having a generally cylindrical configuration with a longitudinal axis, said intermediate section longitudinal axis arranged substantially perpendicular to the longitudinal axis of said elongated body portion, said drum member end section having a longitudinal axis, and said drum member end section longitudinal axis arranged in nonparallel relation with said drum member intermediate section longitudinal axis with said drum member end section longitudinal axis intersecting said drum member intermediate section longitudinal axis and extending forwardly therefrom.
Claim 4
Dependent Claim
84 words
A continuous mining machine as set forth in claim 1 in which, said drum member intermediate portion includes a pair of longitudinally aligned intermediate sections, means nonrotatably connecting said intermediate sections to each other, said intermediate sections have adjacent overlapped inner edge portions operable to maintain a continuous cutting pattern between said intermediate sections, and means to move said inner edge portions of said intermediate sections toward and away from each other while in overlapped relation to thereby extend and retract said drum member.
Claim 5
Dependent Claim
152 words
A continuous mining machine as set forth in claim 1 in which, said drum member intermediate portion includes an intermediate section having a generally cylindrical configuration with an outer annular edge portion, at least one of said drum member end sections having an inner annular edge portion, and said drum member intermediate section and said end section rotatably mounted with said end section inner annular edge portion positioned in spaced nonparallel relation to said intermediate section outer annular edge portion, a portion of said end section inner annular edge portion positioned adjacent to a portion of said intermediate section outer annular edge portion so that cutting elements extending from said intermediate section and said end section adjacent to said respective edge portions overlap along the front portion of said drum member to dislodge material in front of said end section inner annular edge portion and said intermediate section outer annular edge portion.
Claim 6
Dependent Claim
58 words
A continuous mining machine as set forth in claim 4 in which, said drum member rear portion having said end section inner annular edge portion spaced from said intermediate section outer annular edge portion to thereby provide an opening therebetween, and said boom member having a portion extending through said opening and rotatably supporting said drum member thereon.
Claim 7
Dependent Claim
55 words
A continuous mining machine as set forth in claim 5 in which, said boom member includes an annular front end portion extending through said opening into said drum member, end section support means extending laterally from said boom member annular front end portion, and said end section rotatably supported on said end section support means.
Claim 8
Dependent Claim
105 words
A continuous mining machine as set forth in claim 5 in which, said boom member includes an annular front end portion extending through said opening into said drum member, annular end section support means extending laterally from said boom member annular front end portion into said drum member end section, said end section rotatably supported on said annular end section support means, intermediate support means having a generally cylindrical configuration with a longitudinal passageway therethrough, said intermediate support means extending laterally from said boom member annular front end portion into said drum member intermediate section, said intermediate section rotatably supported on said intermediate support means.
Claim 9
Dependent Claim
26 words
A continuous mining machine as set forth in claim 5 which includes, drive means to rotate said drum member, said drive means extending through said opening.
Claim 10
Dependent Claim
54 words
A continuous mining machine as set forth in claim 5 in which, said boom member includes an annular front end portion extending through said opening into said drum member, intermediate section support means extending laterally from said boom member annular front end portion, said intermediate section rotatably supported on said intermediate section support means.
Claim 11
Dependent Claim
146 words
A continuous mining machine as set forth in claim 9 which includes, an input shaft rotatably supported by said boom member and extending into said drum member through said opening, planetary gear means positioned in said drum member intermediate section, said planetary gear means including a sun gear, a plurality of planet gears meshing with said sun gear and mounted in a planet cage and a ring gear meshing with said planet gears, said intermediate support means for said ring gear nonrotatably mounted thereon, means drivingly connecting said sun gear to said input shaft to transmit rotation from said input shaft to said sun gear, and said drum member intermediate portion connected to said planet cage so that upon rotation of said sun gear said planet gears and planet cage revolve on said ring gear about said sun gear and rotate said drum member intermediate section.
Claim 12
Dependent Claim
40 words
A continuous mining machine as set forth in claim 10 in which, said intermediate section support means has a generally cylindrical configuration with a longitudinal passageway therethrough, and said planetary gear means positioned in said intermediate support means longitudinal passageway.
Claim 13
Dependent Claim
62 words
A continuous mining machine as set forth in claim 10 in which, said drum member includes an end section supporting means extending laterally from said boom member annular front end portion, said end section rotatably supported on said end section support means, connecting means drivingly connecting said input shaft to said drum member end section to rotate said drum member end section.
Claim 14
Dependent Claim
40 words
A continuous mining machine as set forth in claim 12 in which said connecting means includes means connecting said planet cage to said drum member end section to transmit rotation of said planet cage to said drum member end section.
Claim 15
Dependent Claim
55 words
A continuous mining machine as set forth in claim 12 which includes, a first shaft member connected at one end to said planet cage, an end section output shaft connected to said drum member end section, and universal means connecting the other end portion of said first shaft member to said end section output shaft.
Claim 16
Dependent Claim
24 words
A continuous mining machine as set forth in claim 14 in which, said universal means positioned within said annular boom member front end portion.
Claim 17
Dependent Claim
67 words
A continuous mining machine as set forth in claim 14 in which, said drum member end section support means includes an axial passageway therethrough, said drum member end section output shaft extending through said axial paSsageway and connected at one end to said drum member end section, and said drum member end section output shaft rotatably supported in said drum member end section support means axial passageway.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |