Abstract: This invention is concerned with a coaster for drinking cups comprising:a circular wall section;a base section enclosed within said wall section;a first rim means projecting upwardly from the base section and extending from the wall section toward the center of the coaster;a second rim means shorter in length than, but equal in height to, the first rib means, the second rim means projecting upwardly from the base and extending from the wall section towards the center of the coaster;the first and second rib means positioned so that a cup placed within the coaster may contact the top portion of each upwardly projecting rib means;the first and second rib means being separated an effective droplet removing distance from each other at a point approximately where both rib means contact the wall section.By appropriately spacing the rib means, condensation droplets that are formed on a drinking cup can conveniently pass from the cup into the coaster.

Abstract: A wheelchair hand propelled by the occupant. Levers on the sides in juxtaposition with the main wheels of the wheelchair are rotatable in the forward-backward direction about the main wheel axle as a fulcrum. A plurality of concentric ratchet rings affixed to each of the main wheels provides engagement for a discrete one of a plurality of pawls associated with each of the levers. The plurality of pawls is distributed progressively circumferentially about a shaft associated with each of the levers, and means are included to rotate the shaft to bring a discrete one of the pawls into operative relationship with a selected one of the concentric ratchet rings, thereby providing a selectable propulsion ratio. The ratchet teeth are oriented such that the pawls slide over them when the levers are pulled backward, but engage firmly when the levers are thrust forward.