US PATENT SUBCLASS 83 / 634
.~.~.~.~ Adjustable mechanical advantage

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}
627  DF  .~.~ Tool driver movable relative to tool support {7}
633  DF  .~.~.~ Fixed axis lever {1}
634.~.~.~.~ Adjustable mechanical advantage

DEFINITION

Classification: 83/634

(under subclass 633) Apparatus wherein the point of connection between two or more of the actuating levers may be varied.

SEE OR SEARCH THIS CLASS, SUBCLASS:

527+, for means to change the datum plane of a tool or tool-presser stroke and see (1) Note thereunder for the line.

606, for adjustable driver for varying the mechanical advantage for an oscillating cutter.