Vibratory rollers

Claim 1

IN A VIBRATORY ROLLER STRUCTURE INCLUDING A MAIN FRAME, TWO VIBRATORY ROLL FRAMES, MEANS MOUNTING SAID ROLL FRAMES ON SAID MAIN FRAME FOR INDEPENDENT ANGULAR STEERING DISPLACEMENT ABOUT SPACED PIVOTS ON THE FORE-ANDAFT AXIS OF SAID MAIN FRAME, ROLL SHELLS RESPECTIVELY MOUNTED FOR ROTATION ON SAID ROLL FRAMES, VIBRATORY MEANS FOR VIBRATING SAID ROLL SHELLS, AND POWER AND TRANSMISSION MEANS FOR ROTATING SAID ROLL SHELLS FOR TRACTION DRIVE OF SAID ROLLER STRUCTURE AND FOR OPERATING SAID VIBRATORY MEANS; THE IMPROVEMENT THAT THE POWER AND TRANSMISSION MEANS FOR ROTATING SAID ROLL SHELLS COMPRISES: (A) A SINGLE MOTOR MOUNTED ON SAID MAIN FRAME ON AN AXIS TRANSVERSE TO SAID FORE-AND -AFT AXIS THEREOF; (B) A GEAR BOX MOUNTED ON SAID MAIN FRAME ON SAID TRANSVERSE AXIS AND IN ALIGNMENT WITH SAID MOTOR; 7C) A DRIVING CONNECTION BETWEEN SAID MOTOR AND SAID GEAR BOX; (D) TWO GEAR BOX OUTPUT MEMBERS LOCATED SYMMETRICALLY WITH RESPECT TO SAID GEAR BOX AND SAID TRANSVERSE AXIS; (E) ELEMENTS RESPECTIVELY MOUNTED ON SAID ROLL FRAMES, BOTH ON THE SAME SIDE OF SAID ROLLER STRUCTURE, AND BEING CONNECTED RESPECTIVELY TO SAID ROLL SHELLS FOR ROTATING THE LATTER; (F) TWO ANGULAR DISPLACEABLE CARDAN SHAFT EXTENDING TRANSVERSELY OF SAID ROLLER STRUCTURE; AND (G) UNIVERSAL COUPLINGS COUPLING OPPOSITE ENDS OF SAID CARDAN SHAFTS RESPECTIVELY TO SAID MEMBERS AND SAID ELEMENTS, (H) THE POWER TRANSMISSION MEANS FOR TRANSMITTING POWER TO SAID VIBRATORY MEANS BEING CONNECTED TO SAID VIBRATORY MEANS AT SAID SAME SIDE OF SAID ROLLER STRUCTURE AS THE CONNECTION OF THE POWER TRANSMISSION MEANS TO SAID ELEMENTS WHICH ROTATE SAID ROLL SHELLS.