US PATENT SUBCLASS 254 / 120
SINGLE THROW LEVER

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

120SINGLE THROW LEVER {6}
121  DF  .~> Rail or tie lifter
122  DF  .~> Lazy tongs
123  DF  .~> Lever-supported thrust bar
124  DF  .~> Mechanically actuated {2}
129  DF  .~> Adjustable {1}
131  DF  .~> Special engaging feature {2}

DEFINITION

Classification: 254/120

SINGLE THROW LEVER:

(under the class definition) Pushing and pulling implement comprising a lever engaging the load either directly or by means of a part supported by the lever only, the entire travel of the load while supported by the lever being produced by a single throw of the lever.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3+, 8+, 17, 32+, 36+, 44, 45+, 62+, 77+, and 105+, for implements comprising a lever capable of bodily travel in a step-by-step movement while under load.

SEE OR SEARCH CLASS

29, Metal Working,

248, and 268 for pushing and pulling implements of the single throw lever type in the form of pliers or tweezers.

74, Machine Element or Mechanism,

519+, for lever mechanism in general as elements. 212, Traversing Hoists,

342, for lever-type hoist.