The clutch consists of housing 1, keyed to shaft 8 and rotating about fixed axis A, and centre-piece 2, keyed to shaft 9 and rotating about fixed axis B. On pins 4, centre-piece 2 carries friction cones 3 which engage internal conical surfaces of housing 1. Engaging collar 6 slides along shaft 9 and is connected by turning pair D to link 7 which, in turn, is connected by turning pair E to arm 10. Arm 10 turns about axis C of centre-piece 2. Cones 3 are pressed against housing 1 by spring 5. The clutch is disengaged by shifting collar 6 to the right.
$3450$CF,C$