Lever 1 oscillates about fixed axis A and has head b which engages slot a in link 5. Link 5 reciprocates in fixed guide B and acts on steel balls 2, confined in flexible tube 6, forcing the balls up in the tube and causing plunger 3 to move upward in fixed guide C. Plunger 3 is returned to its initial position by spring 4 which also keeps the balls in contact with link 5.
$3534$CFL,ML$