US PATENT SUBCLASS 271 / 134
.~.~.~.~.~ By relief of pack weight

Current as of: June, 1999
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271 /   HD   SHEET FEEDING OR DELIVERING

8.1  DF  FEEDING {8}
18  DF  .~ Separators {8}
42  DF  .~.~ Reciprocating {2}
131  DF  .~.~.~ Bottom feed {9}
133  DF  .~.~.~.~ With means to prepare pack or bottom sheet for feeding {2}
134.~.~.~.~.~ By relief of pack weight

DEFINITION

Classification: 271/134

(under subclass 133) Device wherein the means acts to support a portion of the stack above the lowermost sheet, thereby to facilitate feeding of the lowermost sheet unburdened by the downward force of sheets thereabove.

(1) Note. In most devices of this subclass it is not the entire weight of the sheets above the lowermost that is supported. Rather, the hopper containing the stack is provided with fixed or moveable projections into the downward travel of the stack such that at least one edge of a sheet (and the stack above the sheet) is partially and temporarily supported.