dispositif d'alimentation

OBS: on peut étudier cette machine [carde] en 5 parties (...) un --(...) cylindre cannelé (...) cylindre de guidage (...) cylindre briseur (...) aussi ensemble d'alimentation p.20

OBS: the -- of a card are those parts which precede the main cylinder. [Their] purposes are to supply the lap (...) to open the fibers (...) and to deliver a uniformly thin sheet of fibers to the main cylinder.