US PATENT SUBCLASS 72 / 441
.~ With means to selectably control movement of tool

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

429  DF  WITH MEANS TO DRIVE TOOL {11}
441.~ With means to selectably control movement of tool {3}
442  DF  .~.~> By drive means common to optionally selectable tools
443  DF  .~.~> To control speed of tool
444  DF  .~.~> By means to connect and/or disconnect tool from its drive

DEFINITION

Classification: 72/441

With means to selectably control movement of tool:

(under subclass 429) Apparatus provided with means for regulating or adjusting the rate or length of travel of a tool, or for permitting a tool to move or be stationary, said means acting only at the option of an operative.

(1) Note. Examples of disclosures included in this and indented subclasses are (a) means for starting a tool in its driving movement, (b) means for varying the speed or length of stroke of a tool, and (c) means for driving any of a plurality of tools by one or a plurality of drive means.