Link 3 of the clutch is keyed to shaft 7 and rotates about fixed axis A. Link 8 is keyed to shaft 9 and rotates about fixed axis B. Engaging collar 4 slides along link 8 and is connected by turning pair C to cylinder member 2 in side of which plunger 6 slides. Plunger 6 is connected by turning pair D to slide-block 1 which engages a groove in link 3. Slide -blocks 1 are pressed against the surface of link 3 by springs 5 when collar 4 is shifted to its extreme left -hand position. The clutch is disengaged by shifting collar 4 to the right.
$3452$CF,C$