US PATENT SUBCLASS 72 / 444
.~.~ By means to connect and/or disconnect tool from its drive

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

429  DF  WITH MEANS TO DRIVE TOOL {11}
441  DF  .~ With means to selectably control movement of tool {3}
444.~.~ By means to connect and/or disconnect tool from its drive

DEFINITION

Classification: 72/444

By means to connect and/or disconnect tool from its drive:

(under subclass 441) Apparatus provided with a tool-moving means and a power source therefor, wherein the means can be joined to its power source or be separated therefrom while the tool is stationary, at the choice of the operative.

SEE OR SEARCH CLASS

83, Cutting,

571+, for disclosure of similar structure for driving a cutting tool.