Abstract: Apparatus for supplying a predetermined number of piston rings to a work station including a vertically movable slide plate interposed between a charge-side chute and a discharge-side chute. Both the chutes have inclined grooves formed on side surfaces thereof for suspending the piston rings for sliding movement by gravity and the slide plate also has grooves adapted to receive a set number of rings from the charge-side chute at one position and to discharge the same from the slide plate to the discharge-side chute at another position. An adjuster is provided for controlling the number of the piston rings to be fed to the slide plate and discharged to the discharge side chute.