Abstract: A top-load, bottom-feed friction feeder which includes a power source having connected thereto a main feed wheel and an eccentric wheel. A stone wheel is located adjacent the main feed wheel. The stone wheel can be adjusted and the feeder can continuously feed pieces which have a wide variety of sizes, stocks and orientations.

Abstract: A label applying machine in which envelopes or the like are fed past a label affixing station and a web carrying labels is advanced in stepped incremental movements past the station to affix the labels to the envelopes or the like in predetermined, timed, spaced relationship, the machine including sensing means for sensing the positions of the labels and envelopes or the like and having electronic controls for adjusting the positions to obtain accurate registry between the labels and envelopes or the like.

Abstract: A machine for folding flexible sheets, such as paper, and more particularly blueprints and the like, comprises a plurality of fold stations, each including a pair of pinch rolls and a deflector selectively operable to cause a sheet of material fed to the machine to be fed between a pair of pinch rolls and thus folded, or to be fed past the pinch rolls and not folded, an infeed tray to feed a sheet of material to the fold stations, a plurality of first sensing devices on the infeed tray spaced apart in the direction of travel of the sheet to sense the presence of a sheet of material on the infeed tray, and a sensing device at each fold station to sense the presence of a sheet being folded at that station, said sensing devices operatively connected with the deflectors to operate the deflectors to cause the sheet of material to be folded at the next succeeding fold station only when the sheet of material is sensed simultaneously by the spaced sensing devices on the infeed tray and the sensing device at the next