(under the class definition) Structure comprising a series of diagonal levers pivoted together at their mid-points and at their ends by which arrangement the device as a whole can be extended and retracted.
SEE OR SEARCH CLASS
14, Bridges,
45, for a lazy tong draw bridge.
74, Machine Element or Mechanism,
521, for a lazy tong mechanical movement. 135, Tent, Canopy, Umbrella, or Cane,
131, and 145 for lazy-tong type frameworks for portable shelters.
182, Fire Escape, Ladder, or Scaffold,
69.1+, for a lazy tong means for extending an extension ladder and subclass 141 for a platform elevating means which may include lazy tong extension means.
187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,
211, and 269 for an elevator with lazy tong elevating means.
