Patent US3842966A successfully refreshed from Google Patents.
US3842966A
Expired / Lapsed
US
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Travelling mine roof support with scraper conveyor for use with mechanical mining apparatus
Assignee: Kloeckner Werke AG
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Filing: 1973-02-28
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Granted: 1974-10-22
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Expires: 1993-02-28
Abstract
Abstract A travelling mine roof support to which a slide in form of a Ushaped upwardly open trough is connected by fluid operated cylinder and piston means so that the slide and the mine roof support may be stepwise advanced toward the mine face during mining of the latter. The slide is constructed to support and guide the upper and the lower run of an endless scraper conveyor and it includes conveyor channel means comprising a guide member having a pair of side wall profiles connected by a transverse wall upwardly spaced from the bottom wall of the trough for guiding the upper run of the conveyor. The guide member is arranged between the side walls of the trough tiltably between a working position in which the transverse wall thereof extends substantially parallel to the bottom wall of the trough and a raised position providing access to the lower run which is guided by a pair of further side profiles located between the transverse wall of the member and the bottom wall of the trough.
Inventors
- 👤 G Blumenthal
- 👤 R Krohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:43
CPC Classifications
E; E21; E21D; E21D23/00; E21D23/04; E21D23/0445; E21F; E21F13/00; E21F13/06; E21F13/066
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
280 words
A travelling mine roof support comprising, in combination, frame means for said mine roof support, said frame means having a base plate adapted to engage the floor of a mine gallery; a slide in form of U-shaped upwardly open trough having a spaced side walls and a bottom wall and being arranged at that side of said base plate which in operation faces the mine face of the gallery; fluid operated cylinder and piston means connected to said frame means and said slide for moving said frame means and said slide relative to each other towards and away from said mine face; a scraper conveyor having an upper and a lower run; and conveyor channel means arranged in said trough for guiding said upper and said lower run of said scraper conveyor, said conveyor channel means comprising a guide member for guiding said upper run of said scraper conveyor and having a pair of transversely spaced side wall profiles connected at the bottom ends thereof by a transverse wall upwardly spaced from said bottom wall of said trough, hinge means for hingedly connecting one of the side wall profiles of said guide member to one of said side walls of said trough tiltable about a substantially horizontal axis between a working position in which said transverse wall extends substantially parallel to said bottom wall and a raised position in which said transverse wall is upwardly tilted, and releasable locking means for connecting the other side wall profile to the other wall of said trough, the lower run of said scraper conveyor being guided in the space between said transverse wall of said member and said bottom wall of said trough.
Claim 2
Dependent Claim
280 words
A travelling mine roof support comprising, in combination, frame means for said mine roof support, said frame means having a base plate adapted to engage the floor of a mine gallery; a slide in form of U-shaped upwardly open trough having a spaced side walls and a bottom wall and being arranged at that side of said base plate which in operation faces the mine face of the gallery; fluid operated cylinder and piston means connected to said frame means and said slide for moving said frame means and said slide relative to each other towards and away from said mine face; a scraper conveyor having an upper and a lower run; and conveyor channel means arranged in said trough for guiding said upper and said lower run of said scraper conveyor, said conveyor channel means comprising a guide member for guiding said upper run of said scraper conveyor and having a pair of transversely spaced side wall profiles connected at the bottom ends thereof by a transverse wall upwardly spaced from said bottom wall of said trough, hinge means for hingedly connecting one of the side wall profiles of said guide member to one of said side walls of said trough tiltable about a substantially horizontal axis between a working position in which said transverse wall extends substantially parallel to said bottom wall and a raised position in which said transverse wall is upwardly tilted, and releasable locking means for connecting the other side wall profile to the other wall of said trough, the lower run of said scraper conveyor being guided in the space between said transverse wall of said member and said bottom wall of said trough.
Claim 3
Dependent Claim
56 words
A travelling mine roof support with a scraper conveyor as defined in claim 1, and including a further pair of transversely spaced side wall profiles located between said transverse wall of said guide member and said bottom wall of said trough and fixedly connected to the latter for guiding the lower run of said scraper conveyor.
Claim 4
Dependent Claim
91 words
A travelling mine roof support with a scraper conveyor as defined in claim 2, wherein the pair of side wall profiles connected by said transverse wall and said further pair of side wall profiles are respectively substantially vertically aligned with each other, and wherein the transverse spacing of said pairs of side wall profiles is smaller than that of said side walls of said trough so as to define between the inner face of each trough side wall and the outer face of the adjacent side wall profiles a free space.
Claim 5
Dependent Claim
44 words
A travelling mine roof support with a scraper conveyor as defined in claim 1, wherein said one side wall profile of said guide member is hingedly connected to an upper end portion of said one side wall which in operation faces the mine face.
Claim 6
Dependent Claim
91 words
A travelling mine roof support with a scraper conveyor as defined in claim 3, wherein said one side wall profile of said guide member is hingedly connected to an upper end portion of said trough side wall which in operation faces the mine face, and wherein said hinge means and said releasable locking means are equally spaced from the bottom wall of the trough and located respectively in the free spaces between the inner face of the respective side wall and the outer face of the side wall profile adjacent thereof.
Claim 7
Dependent Claim
35 words
A travelling mine roof support with a scraper conveyor as defined in claim 4, wherein said one side wall of said trough has an outer face forming a guide face for a mechanical mining apparatus.
Claim 8
Dependent Claim
44 words
A travelling mine roof support with a scraper conveyor as defined in claim 4, wherein said one side wall of said trough has an outer face and including guide means connected to said outer face for guiding operating chains of a mechanical mining apparatus.
Claim 9
Dependent Claim
46 words
A travelling mine roof support with a scraper conveyor as defined in claim 5, and including connecting means for connecting the slide associated with one travelling mine roof support to a slide of an adjacent mine roof support for aligning the slides substantially in longitudinal direction.
Claim 10
Dependent Claim
52 words
A travelling mine roof support with a scraper conveyor as defined in claim 8, wherein said connecting means are arranged and fastened to the respective slide beneath said hinge means and said releasable locking means so as to permit tilting of the respective guide member between said working and said raised position.
Claim 11
Dependent Claim
99 words
A travelling mine roof support with a scraper conveyor as defined in claim 3, and including connecting means for connecting the slide associated with one travelling mine roof support to a slide of an adjacent mine roof support for aligning the slides substantially in longitudinal direction, said connecting means including a pair of connecting elements and support elements for each slide and located beneath the respective hinge means and releasable locking means in the free spaces between the side walls of the respective trough and the side wall profiles of the guide member of the respective conveyor channel means.
Claim 12
Dependent Claim
98 words
A travelling mine roof support with a scraper conveyor as defined in claim 2, wherein said transverse wall has a pair of opposite end faces extending transverse to the elongation of said conveyor channel means, and wherein at least one of said end faces abuts against a corresponding end face of conveyor channel means in a slide associated with another travelling mine roof support, and including a sealing bar beneath the abutting end faces, said sealing bar resting with opposite ends loosely on the further pairs of side wall profiles of said conveyor channel means of adjacent slides.
Claim 13
Dependent Claim
32 words
A travelling mine roof support with a scraper conveyor as defined in claim 11, wherein said sealing bar has a pair of upper surface portions including an obtuse angle with each other.
Claim 14
Dependent Claim
25 words
A travelling mine roof support with a scraper conveyor as defined in claim 12, wherein said sealing bar is upwardly curved between its opposite ends.
Claim 15
Dependent Claim
47 words
A travelling mine roof support with a scraper conveyor as defined in claim 13, wherein the abutting end portions of said transverse walls are provided with cutouts tapering in a direction away from the respective end faces thereof, and wherein said sealing bar extends into said cutouts.
Claim 16
Dependent Claim
55 words
A travelling mine roof support with a scraper conveyor as defined in claim 11, and including downwardly extending projections on opposite ends of said sealing bar, said projections having convexly curved bottom faces, and the further pairs of side wall profiles of adjacent slides being provided with corresponding cutouts in which said projections are lodged.
Claim 17
Dependent Claim
41 words
A travelling mine roof support with a scraper conveyor as defined in claim 10, wherein said support elements of said connecting elements are respectively fastened to said further pairs of side wall profiles and the respective adjacent walls of said trough.
Claim 18
Dependent Claim
73 words
A travelling mine roof support with a scraper conveyor as defined in claim 16, wherein said hinge means and said releasable locking means comprising substantially identical hinge members respectively fastened to said side walls of said trough and to said side wall profiles which are connected to said transverse wall, and bolts extending through aligned bores of said hinge members, at least the bolt of said locking means being withdrawable from the bores.
Claim 19
Dependent Claim
56 words
A travelling mine roof support with a scraper conveyor as defined in claim 16, wherein said support elements are each provided with a cutout extending from the upper surface thereof thereinto, and wherein said side wall profiles which are connected to said transverse wall are each provided with a lateral projection located in the respective cutout.
Claim 20
Dependent Claim
49 words
A travelling mine roof support with a scraper conveyor as defined in claim 10, and including wall means projecting inwardly from said side walls of said trough for closing the free spaces between said trough side walls and the side wall profiles at the upper end of said spaces.
Claim 21
Dependent Claim
56 words
A travelling mine roof support with a scraper conveyor as defined in claim 1, wherein said base plate has a central projection extending beneath said bottom wall of said trough, and including a pair of skid-shaped support members connected to said bottom wall of the trough and respectively located to opposite sides of said central projection.
Claim 22
Dependent Claim
52 words
A travelling mine roof support with a scraper conveyor as defined in claim 20, wherein said central projection has an upper downwardly inclined surface so as to taper toward that side of said mine roof support which during operation faces the mine face, and wherein said skid-shaped support members are correspondingly tapered.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |