1
Roberta L Zald, Stanley L Adams, David P Welch: Web unwind-splicer apparatus. The Procter & Gamble Company, Thomas J Slone, Fredrick H Braun, Richard C Witte, June 30, 1987: US04676447 (5 worldwide citation)

An apparatus is provided wherein web material is unwound from successive rolls of web material by imparting a constant draw in the web material. The web is then forwarded through a constant tension zone to downstream equipment such as a converter for manufacturing disposable absorbent products. The ...


2
David P Welch, David R Bennett: Continuous motion spiral stacker. The Procter & Gamble Company, Frost & Jacobs, October 15, 1985: US04547113 (4 worldwide citation)

Apparatus and method for accumulating generally flat articles of substantially the same size and shape into stacks of specific count. The apparatus comprises at least one vertically oriented spiral member having an exterior leading edge and an interior trailing edge. A prime mover rotates the spiral ...