Link 5, turning about fixed axis A, is designed as a slider along which slotted link 2 with slot a-a moves. Slotted link 2 has roller 4 which enters a slot in disk 3. Disk 3 rotates about fixed axis B. When crank 1 rotates at uniform velocity, disk 3 rotates with nonuniform velocity.
$998$LG,5L$