Link 1 is a round eccentric that rotates about fixed axis A. Slider 7, encircling eccentric 1, moves along slot a of link 8 which, in turn, slides in fixed guides p-p. Gear rack b of link 8 meshes with segment gear c of link 2 which turns about fixed axis 0. Moving along slot d of link 2 is slider 3 which is driven by connecting rod 9. Connecting rod 9 is connected by turning pairs F and E to slider 3 and link 6. When eccentric 1 rotates about axis A, link 2 oscillates about axis 0. Gear blank 4 on which teeth are to be cut is rotated by worm 5. When crank 6 rotates, the cutting tool, mounted on slider 3, cuts teeth on blank 4.
$1471$LG,FD$