Mining planer arrangement having a parallelogram-disposed articulatedly mounted cuttig means

Claim 1

MINING PLANER ARRANGEMENT WHICH COMPRISES A LONGITUDINALLY EXTENDING BASE MEANS ADAPTED TO BE CONDUCTED LONGITUDINALLY BACK AND FORTH ALONG A MINE FACE ADJACENT THE CORRESPONDING MINE FLOOR AND HAVING LONGITUDINALLY SPACED APART LEADING AND TRAILING BASE PIVOT AXES MEANS THEREON, A LONGITUDINALLY EXTENDING CUTTING TOOL CARRIER MEANS TRANSVERSELY SPACED FROM SAID BASE MEANS AND CORRESPONDINGLY HAVING LONGITUDINALLY SPACED APART LEADING AND TRAILING CARRIER PIVOT AXES MEANS THEREON, AND A PAIR OF SPACED APART TRANSVERSELY EXTENDING LEADING AND TRAILING LINK MEANS, HAVING A CORRESPONDING PREDETERMINED TRANSVERSE EFFECTIVE LINKING LENGTH, AND ARTICULATINGLY INTERCONNECTING SAID CARRIER MEANS AND BASE MEANS VIA SAID BASE PIVOT AXES MEANS AND SAID CARRIER PIVOT AXES MEANS IN THE FORM OF A PARALLELOGRAM, SAID LINK MEANS, SAID BASE AXES MEANS AND SAID CARRIER AXES MEANS BEING CORRESPONDINGLY SLANTED UPWARDLY IN THE DIRECTION FROM SAID LEADING TO SAID TRAILING LINK MEANS, WHEREBY TO PERMIT SAID BASE MEANS AND CARRIER MEANS TO BE DISPLACED LONGITUDINALLY RELATIVE TO EACH OTHER.