US PATENT SUBCLASS 83 / 624
.~.~ With application of force to opposite ends of tool supporting crosshead

Current as of: June, 1999
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83 /   HD   CUTTING

523  DF  MEANS TO DRIVE OR TO GUIDE TOOL {35}
613  DF  .~ With simple rectilinear reciprocating motion only {13}
624.~.~ With application of force to opposite ends of tool supporting crosshead {2}
625  DF  .~.~.~> By relatively movable fixed axis levers
626  DF  .~.~.~> By connecting rod articulated with tool support

DEFINITION

Classification: 83/624

(under subclass 613) Apparatus wherein alternate-motion-creating force is applied to both extremities of an elongated tool carrying member which is restrained by guides at each extremity to travel in a rectilinear path, the extremities being located in the areas closest to the respective cross-head guides.