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US 5,234,256 AGranted
Cutting apparatus for mining operations with automatic control
AssigneeTiefenbach GmbH
InventorsBayramali Demircan, Willy Kussel
Life of this patent
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Abstract
A cutting machine for mining minerals from a seam thereof, the machine executing reciprocal movements parallel to the face of the seam and being provided with switches for generating signals indicative of the direction of movement of the machine for controlling the removal of protective bumpers on support structures located forwardly of the machine and for moving support structures against the face of the seam and relocating bumpers rearwardly of the machine.
Claims9
A cutting machine for breaking and removing mineral from a seam thereof, comprising:
- means reciprocally movable in paths of predetermined length extending substantially in parallel to each other and to the face of said seam, for breaking a layer of predetermined thickness therefrom;
- a plurality of support members positioned adjacent each other along at least one of said paths and being movable toward said face, and comprising selectively movable bumper means for supporting individual sections of said face;
- means for sequentially generating first and second signals in response to movement of said movable means;
- signal processing means responsive to said first and second signals for generating a third signal in response to the sequence of said first and second signals to indicate the direction of said movement and location of said movable means relative to any one of said plurality of support members;
- and means responsive to said third signal for displacing at least one of said bumper means positioned next adjacent said movable means out of the path of movement thereof.
2 more elements
Dependencies are inferred from the claim text.