etching press
Apparatus with two cylinders; to print, an engraved and inked plate and a sheet of paper are pressed between them.
flywheel 
Lever that controls the press cylinders.
bottom cylinder 
Roller located beneath the press bed; together with the top cylinder, it exerts the pressure required to achieve a good impression of the figure.
top cylinder 
Roller located above the press bed; together with the bottom cylinder, it exerts the pressure required to achieve a good impression of the figure.
felt 
Thick piece of fabric placed beneath the paper before it is put under the press; the felt cushions and distributes the pressure.
press bed 
Plate that moves between the two cylinders, supporting the engraved board and the paper.
pressure screw 
Part that controls cylinder pressure.