(under the class definition) Mechanisms, usually automatic in operation, for stopping a machine when a predetermined result is reached when some part of the machine fails to function, or the material fails or is disarranged, or when an operator's position renders him liable to injury.
(0.5) Note. This subclass includes devices having an electric motor drive where a mechanical stop mechanism stops the drive independently of any motor control or deenergization, even though the stopping of the drive incidently causes control or deenergization of the motor.
(1) Note. For organizations and constructions of the machines, such as presses, winding machines, etc., to which the stop mechanism is applied, see appropriate art class.
SEE OR SEARCH CLASS
100, Presses,
53, for presses not elsewhere provided for, which have interrelated or safety controls. 118, Coating Apparatus,
663+, for coating apparatus having automatic control means.
188, Brakes,
82.1+, for one-way brakes applied to elements rotating relative to stationary element to prevent retrograde rotation and see the notes thereto for other one-way brakes.
241, Solid Material Comminution or Disintegration,
36, for automatic power stop mechanisms applied to significantly included comminution.
318, Electricity: Motive Power Systems,
466+, and 477 for electric driven motor devices combined with a mechanical stop mechanism and the stopping operation requires control of the motor as well as operation of the stop mechanism. See Note (0.5).
369, Dynamic Information Storage or Retrieval,
79, for a phonograph cabinet closure braking actuator; and subclasses 232 and 234+ for phonograph braking by record structure actuation, and mechanism condition actuation, respectively.
