Track wheel for track-laying vehicles

Claim 1

A TRACK-LAYING VEHICLE COMPRISING A TRACK MEMBER PASSING OVER A ROTATABLY MOUNTED TRACK WHEEL, SAID TRACK MEMBER INCLUDING A TRANSVERSE BEARING SURFACE AND A PLURALITY OF TEETH INWARDLY PROJECTING FROM SAID SURFACE, SAID TRACK WHEEL COMPRISING A ROTATABLY MOUNTED HUB, A PAIR OF DISCS MOUNTED ON SAID HUB, A PAIR OF ELASTIC TIRES, AND MEANS FOR EASILY REPLACEABLY ATTACHING THESE ELASTIC TIRES TO SAID DISCS, SAID TIRES BEING LATERALLY SPACED APART FROM EACH OTHER AND HAVING SUBSTANTIALLY STRAIGHT FACING SIDE WALLS WHICH CONFORM TO A PORTION OF THE SIDE WALLS OF SAID TEETH, SAID TEETH BEING RECEIVABLE BETWEEN THE FACING SIDE WALLS, OF SAID TIRES WHEREBY SAID TEETH ARE LATERALLY SUPPORTED BY SAID FACING WALLS, SAID TIRES BEING SUBSTANTIALLY T-SHAPED IN CROSS SECTION AND INCLUDING A CROSS-LEG AND A PERPENDICULARLY EXTENDING STEM PORTION, THE OUTER FACE OF SAID CROSS-LEG BEARING AGAINST SAID TRACK MEMBER TRANSVERSE BEARING SURFACE, SAID CROSS-LEG HAVING A SUBSTANTIAL THICKNESS, SAID FACING SIDE WALLS OF SAID TIRES BEING CONSTITUTED BY THE FACING SIDES OF SAID CROSS-LEGS, THE FACING SIDES OF SAID CROSS-LEGS CONFORMING TO AND CONTACTING THE SIDE WALLS OF SAID TEETH FROM THE POINT WHERE SAID TEETH SIDE WALLS MERGE INTO SAID TRANSVERSE BEARING SURFACE AND FOR A SUBSTANTIAL DISTANCE ALONG THE SIDE WALLS OF SAID TEETH.