Flat disk 16 is keyed to drive shaft 15 and rotates about fixed axis A in hopper feed housing 1, carrying blanks 2 toward fixed aligning strip 3 which lines up the blanks in the required position as they leave the hopper to slide down a chute into a press. Improperly positioned blanks, as at 2', may clog or jam the hopper exit. This is prevented in the following manner. Cam 4 is driven from shaft 15 through gears 10, 11, 12, 13 and 14, and has a circular cut-out portion b. Follower 5 turns about fixed axis B and carries roller a which periodically drops into cut-out portion b. As a result, a sweeping motion is transmitted to link 6 through links 7, 8 and 9. Link 6, rigidly attached to link 9 and oscillating so that it enters a slit in hopper housing 1, sweeps away or dislodges incorrectly positioned work- piece 2'.
$3241$CmL,SF$