Abstract: A motor control mechanism for adapting electric sewing machines to be used by handicapped people, is mounted on the sewing machine or adjacent thereto and includes a motor control means operatively connected between the machine motor and a variable control arm which is activated by the operator's arm, or head, or knee.

Abstract: A protruding lever is releasably attached to a conventional flush-tank pivoted flush handle, extending toward a locus of the user's convenient arm flexure. The user is thereby enabled to actuate the flush lever without contortion from conventional seated position. The invention swings away from the user when inadvertently contacted, while retaining rigidity in the direction of flush actuation. An elbow-conformal recess facilitates confortable actuation by the user's elbow. The invention is releasably clamped to and wholly supported by the conventional flush handle.

Abstract: A motorcycle sidecar securely accommodates a handicapped driver seated in a wheelchair. Handlebars are mounted directly in front of the driver for steering the motorcycle. Other controls, including a throttle, a front brake lever, and a clutch lever are mounted on the handle bars. A rear brake lever and a gear shifting control are conveniently located in the sidecar for manipulation by the handicapped driver. A retractable ramp is provided for permitting the driver to roll his wheelchair into the sidecar. Brackets are provided for securely attaching the sidecar to a conventional motorcycle.

Abstract: A wrist joint assembly is provided for use with a mechanical manipulator arm for finely positioning an end-effector carried by the wrist joint on the terminal end of the manipulator arm wherein the wrist joint assembly is pivotable about a first axis to produce a yaw motion, a second axis to produce a pitch motion, and a third axis to produce a roll motion, wherein the three axes are mutually perpendicular and have a common point of origin. The wrist joint assembly includes a disk segment affixed to the terminal end of the manipulator arm and a first housing member rotatably carried on the disk segment about the first axis. A second housing member is rotatably carried on the first housing member and a third housing member is rotatably carried on the second housing member whereby the third housing member and the mechanical end-effector carried thereon are moved in the yaw, pitch, and roll motion.