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| Number | Title | Issue Date |
| 7086216 | Machine for gathering ground strewn articles A machine for removing articles strewn on a tract of ground generally consisting of a wheel unit; a support frame mounted on the wheel unit, having means for advancing the machine along the tract of ground; an endless conveyor mounted on the support frame, having me... | 08/08/2006 |
| 5979642 | Extendable modular conveyor assembly A conveyor assembly (11) for attachment to a conveyor belt boot end (10) for use in a mine. The conveyor assembly (11) includes two conveyor modules (12) and (13) which are towed by the boot end (10). The two conveyor modules (12) and (13) enable assembly... | 11/09/1999 |
| 5562194 | Conveyor-displacing system and method for mining operation A bulk conveyor system has a longitudinally extending conveyor belt, devices at the ends for tensioning and relaxing the belt and for advancing the belt, a carriage movable along the belt between the ends, and a transverse conveyor cooperating with the be... | 10/08/1996 |
| 5181600 | Conveyor structure A conveyor structure (1.20) is disclosed that is capable of being retracted concertina fashion for transport on a trailer (42) between sites of operation. The structure comproses a plurality of H-frames each comprised of rigid supports (2A, 2B or 21,22) j... | 01/26/1993 |
| 5123709 | Hydraulic aligner device for flexible continuous tram mining machine A moveable hydraulic aligner device, particularly suited for aligning a roadway used with a full continuous tram mining machine following a drilling cycle, comprises an upper portion, supported by wheels which allow the device to ride along the length of ... | 06/23/1992 |
| 4869358 | Conveyor belt system for a continuous mining machine A conveyor system for use with a continuous mining machine in a straight line shaft includes a plurality of cable support members equally spaced along the length of the conveyor within the mine shaft and an adjustable conveyor belt storage device located ... | 09/26/1989 |
| 4860878 | Collapsible conveyor support structure/carrier An extensible support system for endless conveyor belts and the like has a plurality of pairs of generally transversely aligned primary and secondary interconnected members, a plurality of flexible restrictive members, such as chains, secured between succ... | 08/29/1989 |
| 4538722 | Conveyor shifting apparatus and process A shifting conveyor apparatus with a belt conveyor laterally shiftable, by flexibly mounted flexible rails therealong, towards a progressive excavation, including a travelling varingly-curving rail-engaging guide array for carrying and drawing the conveyo... | 09/03/1985 |
| 4167998 | Arrangement for tensioning a gateway conveyor in a sloping gateway An arrangement for tensioning a gateway conveyor in a sloping gateway during longwall working using supports having base frames which are provided with pulling and shifting hydraulic actuators, wherein in a tensioning device is provided at least at one of... | 09/18/1979 |
| 4139087 | Shiftable conveyor A shiftable conveyor system for use in mining operations includes a conveyor having a conveyor belt and a longitudinal and a lateral axis. A vehicle for shifting the conveyor system in a lateral direction includes an arm for engaging the conveyor and for ... | 02/13/1979 |
| 4120390 | Crossover dump and conveyor advancer A crossover dump and conveyor advancer for a main conveyor means supported by a movable pan line. The crossover dump includes a tunnel portion through which the pan line extends and entry and reentry ramps supporting portions of the main conveyor are prov... | 10/17/1978 |
| 4096940 | Conveying apparatus Packing paddles for conveying and packing broken rock and debris in a mine are pivotally mounted on mine roof supports. Hydraulic sequence valves are employed to operate hydraulic rams controlling the paddles. The valves, and thus the paddles, are operate... | 06/27/1978 |
