FRICTION SCREW PRESS MECHANISM

When vertical disks 1 and 2, keyed to shaft A, rotate, motion is transmitted by one of them to flywheel 3 which is rigidly attached to the top of vertical screw 4. When disk 1 is shifted in to contact with flywheel 3, screw 4, connected by a screw pair to fixed threaded member 5, propels ram 6 downward with increasing velocity throughout its stroke until ram die 7 strikes the work lying on anvil d…