Abstract: A tire inspection apparatus for detecting defects in tubeless truck tires. The apparatus includes a support base having first, second and third supports, the first and third supports being pivotable between a first position and a second position. A wheel assembly is rotatably supported on each of the first and third supports of the support base with each wheel assembly having an upper portion and a removably interconnected, axially aligned second portion. A connector arrangement is provided on each wheel assembly for removably interconnecting together the first and second portions of the assembly and a lifting apparatus is mounted on the second support of the support base for lifting the first portion of the wheel assembly and for moving the first portion of the wheel assembly into and out of alignment with the second portion of the wheel assembly.

Abstract: An improved hand truck apparatus for use in moving loads up and down stair which includes a pair of novel stair tread engaging assemblies which operate smoothly and in a relatively friction-free manner. The stair engaging belts of each of the stair tread engaging assemblies is supported by a plurality of freely rotating, spaced-apart rollers which are grooved to closely receive and support the lower portion of the belts in the manner to positively guide the belts around the belt supporting frames of the assemblies as the rollers freely rotate about their individual axles. The roller supporting frame of each of the stair tread engaging assemblies is uniquely provided with guide means for guiding the stair tread engaging belts into the channels formed in the rollers and for preventing undesirable frictional contact between the belt and the supporting frame as the belt travels about the supporting rollers.