(under the class definition) Cushioning devices arranged to check the momentum of the reciprocating bed of a machine, such as a printing-press, lathe, planing-machine, etc., near the end of its stroke. In some cases the energy stored up in overcoming the momentum of the bed is utilized for starting it in the opposite direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119, 130, for a press cushion fluid spring device and solid material spring device, respectively.