Compacting machine

Claim 1

A ROAD COMPACTOR FOR ATTACHMENT TO A PUSH-PULL MEMBER OF A PROPELLING VEHICLE, COMPRISING A COMPACTING SHOE ADAPTED TO BE SUPPORTED ON THE SURFACE TO BE COMPACTED, MEANS VIBRATING SAID SHOE, A PAIR OF PARALLEL LINKS OF SUBSTANTIALLY THE SAME EFFECTIVE LENGTH EXTENDING FORE-AND-AFT WITH REFERENCE TO THE LINE OF MOVEMENT OF SAID PROPELLING VEHICLE, MEANS INCLUDING PIVOTS EACH ARRANGED ON A GENERALLY HORIZONTAL AXIS EXTENDING TRANSVERSELY OF SAID LINKS PIVOTALLY CONNECTING THE FORWARD ENDS OF SAID LINKS WITH SAID SHOE, MEANS INCLUDING PIVOTS EACH ARRANGED ON AN AXIS GENERALLY PARALLEL WITH SAID FIRST MENTIONED AXES PIVOTALLY CONNECTING THE REAR ENDS OF SAID LINKS WITH SAID PUSH-PULL MEMBER, AND A SHOCK ABSORBER HAVING FRONT AND REAR OPERATING PARTS MOVABLE AGAINST RESISTANCE TOWARD AND FROM EACH OTHER, SAID SHOCK ABSORBER BEING ARRANGED SUBSTANTIALLY PARALLEL AN IN VERTICALLY SPACED RELATION TO SAID LINKS AND MEANS INCLUDING A PIVOT ARRANGED ON AXIS GENERALLY PARALLEL WITH SAID FIRST NAMED AXES PIVOTALLY CONNECTING SAID FRONT OPERATING PART OF SAID SHOCK ABSORBER TO SAID SHOE, MEANS INCLUDING A PIVOT ARRANGED ON AN AXIS GENERALLY PARALLEL WITH SAID FIRST NAMED AXES PIVOTALLY CONNECTING SAID REAR PART OF SAID SHOCK ABSORBER TO SAID PUSH-PULL MEMBER, SAID PIVOTS CONNECTING SAID SHOCK ABSORBER AT POINTS WHICH ARE VERTICALLY SPACED FROM SAID FIRST NAMED AXES, SAID OPERATING PARTS OF SAID SHOCK ABSORBER ACTING IN COMBINATION WITH SAID LINKS TO PERMIT SAID SHOE TO TILT ABOUT A GENERALLY HORIZONTAL AXIS EXTENDING TRANSVERSELY OF THE LINE OF MOVEMENT OF SAID SHOE, WHEREBY SAID SHOE MAY ADAPT ITSELF TO RISES AND DROPS IN THE TERRAIN.