Tire tread

Claim 1

A TIRE COMPRISING A TREAD INCLUDING AT LEAST A PAIR OF SPACED RIBS EXTENDING GENERALLY CIRCUMFERENTIALLY OF THE TIRE, ONE OF SAID RIBS BEING ARRANGED WHOLLY ON ONE SIDE AND ANOTHER ON THE OTHER SIDE OF THE CIRCUMFERENTIAL LINE OF THE TREAD AND EACH RIB COMPRISING A SERIES OF ELONGATED LUGS ARRANGED SUBSTANTIALLY PARALLEL TO EACH OTHER WITH THEIR LONGEST DIMENSION INCLINED AT A SUBSTANTIAL ACUTE ANGLE TO THE CIRCUMFERENTIAL LINE OF THE TREAD BUT SUBSTANTIALLY LESS THAN 90*, THE ADJACENT LUGS IN EACH RIB BEING SPACED FROM EACH OTHER CIRCUMFERENTIALLY LESS THAN THEIR WIDTH IN A CIRCUMFERENTIAL DIRECTION WITH SUCCESSIVE PAIR OF LUGS IN THE SERIES HAVING THEIR INNER ENDS JOINED TO EACH OTHER CIRCUMFERENTIALLY AND HAVING THEIR OUTER ENDS JOINED TO ADJACENT LUGS OF ADJACENT PAIRS WHEREBY TO FORM A SINOUS RIB, THE JOINED INNER ENDS OF THE LUGS OF CERTAIN PAIRS LYING CLOSE TO SAID CIRCUMFERENTIAL LINE THAN THE JOINED INNER EACH OF AN ADJACENT PAIR, AND IN WHICH THE JOINED OUTER ENDS OF THE LUGS ARE STAGGERED WITH RESPECT TO EACH OTHER LATERALLY OF THE TREAD, SAID TREAD INCLUDING TWO SERIES OF EMBOSSED PORTIONS WHICH SERIES ARE ARRANGED, ONE NEAR EACH LATERAL EDGE OF THE TREAD, THE EMBOSSED PORTION BEING ARRANGED, ONE AT EACH END OF THE JOINED OUTER ENDS OF THE LUGS AND EACH HAVING SUBSTANTIALLY THE SAME SPACING FROM SAID JOINED OUTER ENDS WHEREBY THE INNER ENDS OF THE EMBOSSED PORTIONS ARE STAGGERED IN THE SAME MANNER WITH RESPECT TO EACH OTHER AS THE ADJACENT JOINED OUTER ENDS OF THE LUGS.