Improvements in or connected with Wheels for Vehicles Intended to Run on Common Roads

22,842. O'Brien, J., and O'Brien, A. G. Nov. 7. Spring wheels.-Blocks resting on springs slide in interchangeable boxes fitted between side plates attached to the rim. In the arrangement shown in Figs. 3 and 4, each box b extends across the rim and is screwed to the plates a . The upper edge at each end has a flange b adapted to engage with a flange on the metal base b of a wooden block b , which has been boiled in oil and formed with a convex surface. Each block rests on two or more helical springs contained in a box, and all are enclosed in a leather cover c attached to the boxes by metal rings c' and screws c . Fig. 14 shows a form in which each block bears directly on the ground and rests upon one spring, the boxes being divided by a partition b*. In another form, the springs are volute and each box is separated by a transverse partition. The boxes may be set obliquely across the rim, and in some cases, as shown in Fig. 17, the helical springs are elliptical in cross-section. The Provisional Specification describes a stud for the leather cover formed with a button-head set with emery.