US PATENT SUBCLASS 29 / 218
.~.~.~.~ Parallel or tong type, side entrance

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
213.1  DF  .~ Valve applying or removing {4}
215  DF  .~.~ Engine valve spring compressor (only) {3}
217  DF  .~.~.~ Screw operated {1}
218.~.~.~.~ Parallel or tong type, side entrance

DEFINITION

Classification: 29/218

Parallel or tong type, side entrance:

(under subclass 217) Apparatus in which the compressor includes spaced parallel or tong type bars, each having co-planar jaws at one end for engaging the spring from the side, the other ends of the bars being connected by a screw operated mechanism for moving the jaws and bars toward or away from each other in a compressing operation.

(1) Note. The bars may be parallel and maintained parallel by the mechanism, or may be substantially parallel but pivoted to the mechanism, which mechanism operates the bars around the pivot in quasi tong type.

SEE OR SEARCH CLASS

81, Tools, for a hand tool of general utility or an assembling tool which structurally recognizes only one work part.