(under subclass 592) Elevating devices comprising some means tending to return to carrier from dumping position, or a buffer of some kind, or a counterweight.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601, for returns combined with run-out carriers.
602, for returns or buffers combined with inclined elevators.
719+, for similar devices combined with a vertically swinging load support.
SEE OR SEARCH CLASS
16, Miscellaneous Hardware, 193+, and 216 for sash balancers and weights.
89, Ordnance,
39, for gun mount counterpoises.
104, Railways,
249+, for buffers.
187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,
404+, for counterbalance means for an elevator car.
212, Traversing Hoists,
279, 178, and 195+ for cranes having counterweight or counterbalance features.