Patent GB-190320583-A (GB)
Title: Improvements in Spring Wheels for Vehicles.
Inventor: ROBINSON ARTHUR SAMUEL FRANCIS
Filed: 1903-09-24
Granted: 1904-09-22
Abstract: 20,583. Robinson, A. S. F. Sept. 24. Spring wheels.-Relates to spring wheels of the kind described in Specifications Nos. 15,663 and 22,476, A.D. 1902, and Nos. 1712 and 5184, A.D. 1903, in which rim and hub portions are maintained concentric by springs connected together by compensating-levers. To assist the driving of the one or the other portion, the shoes or rollers e of the spring levers a work upon tracks, fixed either to the hub or rim portion of the wheel and consisting of tangential faces d approximately parallel to the corresponding spring lever. Driving is effected by spring arms f, resembling large split pins, which extend between rollers h carried by the compensating-levers b. To permit relative motion between the rim and the hub, pins m on brackets n extend through slots p in connecting-rods j. In some cases, the arms f may be omitted. To reduce friction when sliding shoes are employed, rollers s, Fig. 3, carried by bolts passing through the channel rim o and the side plates v, may be provided. Fig. 3 shows segments of spring wheels of various constructions. Thus, at A and E, to limit radial movement of the middle portions of the spring levers, a pin 3 on the hub portion engages a slotted link 1 pivoted to the clamping-bolt w, while at B and D, the link is formed upon the connecting-rod j. To prevent any frictional retardation of the rollers n or shoes r upon their track from being transmitted to the spring levers, the connecting-rods, as shown at C and D, connect the pin k of the compensating- lever, a pin passing through the head of the clamping-bolt, and the pin of the lever roller, roller carriage, or shoe. The connecting-rods may comprise a pair of plates connected together by a shouldered bush, to the ends of which the side plates of the compensating-lever are riveted, in which case, a hinge pin k<1> extends through a hollow pin k carrying the bush. Each shoe may consist of a segment 11 retained in position by springs 12 attached to the clamping-bolt, or a spring path 13 fixed at one end to the segment and at the other end to the wheel, may be provided. To drive the parts of the wheel, the arms f mounted on a pin 15 on the rim portion may extend between rollers 16 on the hub, or, mounted on a pin 18, the arms may pass between blocks 20 on the hub and rollers 21 on the rim portion, or the arms may be attached to the pins of the compensating-levers, or to another pin 23 on these levers. In some cases, wooden blocks 25, Fig. 6, may have wearing-faces that extend through holes in the side plates of the hub portion and bear against the inner surface of the overlapping side plates v of the rim, while to prevent undue shock, the levers b may have a spring or springs 34 adapted to bear upon the roller track when the rim and hub are relatively displaced. The lever springs and compensating- levers may be arranged about midway between the hub proper and the rim proper, and as shown in Fig. 7, driving may then be effected by a die 26 on the one portion engaging a slot 27 in the other, or the die may be mounted on lugs projecting from the hub towards the rim. Annular cover plates secured to the rim portion, may overlap the plates of the hub to form a chamber for lubricant. Each spring lever may be wider at its middle part where the clamping-bolt passes through.