Dual wheel construction for vehicles

Claim 1

AN AUXILIARY WHEEL FOR ATTACHMENT TO AND ROTATION WITH THE REGULAR WHEEL OF A VEHICLE IN WHICH THE REGULAR WHEEL IS OF THE TYPE HAVING A WHEEL SPIDER, A WHEEL RIM, AND ARCUATELY SPACED APART WHEEL LUGS JOINING THE WHEEL SPIDER TO THE WHEEL RIM, SAID AUXILIARY WHEEL COMPRISING A WHEEL RIM, SPACER MEANS FIXEDLY ATTACHED TO SAID AUXILIARY WHEEL RIM AND ADAPTED TO ABUT THE WHEEL RIM OF THE REGULAR WHEEL WHEN THE WHEEL RIMS ARE PLACED IN SIDEBY-SIDE RELATIONSHIP, ARCUATE TRACK MEANS FIXEDLY ATTACHED TO SAID AUXILIARY WHEEL RIM, SAID ARCUATE TRACK MEANS INCLUDING A FREE EDGE EXTENDING OUTWARDLY FROM THE RIM OF THE AUXILIARY WHEEL AND AWAY FROM THE REGULAR WHEEL AND LYING GENERALLY PARALLEL WITH THE AXIS OF ROTATION OF THE WHEELS, U-SHAPED ATTACHING BRACKETS SLIDABLY MOUNTED ON SAID OUTWARDLY EXTENDING FREE EDGE OF THE ARCUATE TRACK MEANS, EYELET MEANS ON SAID REGULAR WHEEL LUGS AND HOOK MEANS JOINING SAID EYELET MEANS ON SAID REGULAR WHEEL LUGS AND UNITARY BOLT MEANS ON SAID HOOK MEANS, SAID U-SHAPED BRACKETS HAVING A BASE WITH A HOLE THERETHROUGH, SAID ATTACHING BRACKETS RECEIVING SAID UNITARY BOLT MEANS THROUGH THE BASE HOLE, THE SPACED ARMS OF SAID U-SHAPED BRACKET FLANKING SAID UNITARY BOLT MEANS, AND NUT MEANS THREADEDLY ENGAGING SAID BOLT MEANS AND ABUTTING THE HOLE IN THE BASE OF THE U-SHAPED BRACKETS TO HOLD SAID WHEEL AND AUXILIARY WHEEL IN LOCKED RELATIONSHIP.