Abstract: A therapeutic wheelchair that includes an auxiliary frame attached to the main frame of the wheelchair. An auxiliary drive wheel is mounted in the auxiliary frame and is coupled through a drive linkage to a pair of leg operated levers whereby the auxiliary drive wheel is rotated as the levers are moved up and down to propel the wheelchair. A lifting mechanism is provided for raising the auxiliary drive wheel so that the wheel can be driven through the levers without propelling the wheelchair to provide therapy to a person confined to the chair or alternatively, allowing the chair to be used in a conventional manner.

Abstract: Apparatus for performing a series of operations upon a workpiece that include at least one modular mechanical unit having a worktable for supporting workpieces thereon. The worktable is periodically indexed by a Geneva wheel so that a workpiece on the worktable is intermittently moved through a plurality of work stations positioned about the worktable. A gear drive unit is employed to power the Geneva wheel as well as a movable tool support unit mounted in each of the work stations to move a tool mounted upon said support into and out of contact with a workpiece moved by the worktable into the work station. A number of modular units can be cojoined and arranged to be driven from a common prime mover.