.~ Stored material-movement-derived energy provides moving force
DEFINITION
Classification: 226/121
(under subclass 120) Device wherein power absorbed from the movement of material itself is subsequently utilized in a later material-moving effort.
(1) Note. This subclass does not include patents disclosing a spring motor in which the spring is tensioned by means other than a movement of the material.
SEE OR SEARCH CLASS
225, Severing by Tearing or Breaking,
15, for similar apparatus combined with a tearing edge.
352, Optics: Motion Pictures, 184, for motion picture apparatus where a film is fed by the action of a film buckle.
