Abstract: A prosthetic appliance comprises a supporting part and an extremity-shaped part which is articulated to the end portion of the supporting part. A sheath surrounds the supporting part, and a cup-shaped element is permanently connected to the sheath and detachably connected to the extremity-shaped part and bounds a compartment in which the end portion of the supporting part is received with freedom of movement relative to the cup-shaped element. The cup-shaped element may be snugly received in a depression of the second part and circumferentially surrounded by a rim of the latter, being flush with an end face thereof.

Abstract: An electric storage battery arrangement includes a frame which is to be mounted in the prosthetic device, and a storage battery which is insertable into the frame. A snap-holding arrangement holds the storage battery in the frame and includes a lever pivotable in the frame between a releasing and a holding position, being biased toward the releasing position and having one arm that holds the storage battery in the frame. Electric contacts are mounted on the lever, such contacts being arranged in the electric circuit of the drive of the prosthetic device and being in an electric contact with the terminals of the storage battery when the latter is fully inserted in the frame. The lever has a pair of cylindrical projections received in a depression of the frame and held therein against displacement other than pivoting by an arresting member connected to the frame.