Press"er (?), n.
One who, or that which, presses.
Presser bar, ∨ Presser wheel Knitting machine, a bar or wheel which closes the barbs of the needles to enable the loops of the yarn to pass over them. -- Presser foot, the part of a sewing machine which rests on the cloth and presses it down upon the table of the machine.
© Webster 1913.