A wheelchair clamp connects together a pair of wheelchairs situated side by side so that one attendant can move two wheelchair patients at the same time. The brace is moveable between a stowed position and a deployed position. 1 to 5 parts by weight of an organosulfur compound, an unsaturated carboxylic acid or a metal salt thereof, an inorganic filler, and an antioxidant. Each or a predetermined number of the support assemblies include a mounting structure secured to an outer end thereof at a predetermined orientation. More specifically, the first application marker uses TIFF tags within an Exif application marker and the second application marker uses a FlashPix compatible structured storage stream, while the entropy coded data includes restart markers to define tile boundaries within the entropy coded image data.