Side tilt mechanism for a selflevelling backhoe

Claim 1

EXCAVATING APPARATUS COMPRISING A MOBILE CARRIAGE, MOUNTING MECHANISM PIVOTALLY MOUNTED ON SAID CARRIAGE FOR PIVOTAL MOVEMENT RELATIVE THERETO, AN UPPER AND A LOWER ELONGATE MEMBER DISPOSED IN SUBSTANTIALLY PARALLEL RELATION AND EACH HAVING AN END THEREOF PIVOTALLY CONNECTED TO SAID MOUNTING MECHANISM FOR PIVOTAL MOVEMENT RELATIVE THERETO ABOUT SUBSTANTIALLY HORIZONTAL AXES AND IN A VERTICAL PLANE, A FRAME PIVOTALLY CONNECTED TO SAID MEMBERS AT THEIR RESPECTIVE OTHER ENDS, A DIPPER STICK HINGEDLY CONNECTED AT ONE END THEREOF TO SAID FRAME FOR FORE AND AFT ROCKING ABOUT A HORIZONTAL AXIS, AN IMPLEMENT PIVOTALLY CONNECTED TO THE OTHER END OF SAID DIPPER STICK, MEANS FOR RAISING AND LOWERING SAID MEMBERS AND FOR ORIENTING SAID DIPPER STICK, MEANS CONNECTED WITH SAID IMPLEMENT FOR ROCKING SAID DIPPER STOCK, A LINK HAVING ONE END THEREOF PIVOTALLY CONNECTED TO SAID IMPLEMENT, PIVOT MECHANISM PIVOTALLY CONNECTED TO THE OTHER END OF SAID LINK AND BEING SHIFTABLY MOUNTED OVER SAID FRAME FOR RECIPROCATING MOVEMENT RELATIVE THERETO BETWEEN A POINT SPACED REARWARDLY OF THE DIPPER STICK AXIS OF PIVOT AND A POINT SUBSTANTIALLY CO-AXIAL WITH SAID DIPPER STICK AXIS OF PIVOT, AND ACTUATING MEANS OPERATIVELY CONNECTED TO SAID MOUNTING MECHANISM AND BEING OPERABLE TO CAUSE PIVOTING MOVEMENT OF SAID MOUNTING MECHANISM ABOUT AN AXIS EXTENDING SUBSTANTIALLY NORMAL TO THE AXIS OF PIVOT OF SAID ELONGATE MEMBERS.