Mounting arrangement for dual wheels

Claim 1

Apparatus for mounting a second wheel to a first wheel carried on an axle having a plurality of externally threaded studs projecting therefrom, said apparatus comprising in combination: a plurality of fastening elements for fastening the first wheel on the studs projecting from the axle to secure the first wheel to the axle, each fastening element including an internally threaded nut portion on one end adapted to be threaded onto the corresponding stud to secure the first wheel thereon and a solid externally threaded shank on the opposite end integral with said nut portion and projecting outwardly therefrom to provide an outward continuation of the corresponding stud; an adapter having a body portion and flat first and second flanges on opposite ends of said body portion, said first flange having a plurality of openings therein for receiving the corresponding shanks of said fastening elements to mount said adapter on said shanks; a plurality of nut elements adapted to be threaded onto the externally threaded shanks and against said first flange to secure said adapter on said fastening elements; and means for mounting the second wheel on said second flange with the second wheel located outwardly of the first wheel, said mounting means including a plurality of externally threaded bolt members projecting from said second flange and a plurality of nuts adapted to be threaded onto said bolt members to secure the second wheel thereon.