Title: Sheet feeding apparatus utilizing a spirally slotted stacking wheel

Abstract: In a sheet stacking system employing a spirally slotted wheel and a stripping plate to remote sheets from the wheel and form them into a stack, the sheets are conveyed to the stacking wheel by a vacuum drum having a slot around its circumference into which extends the extremity of the stacking wheel. The sheet continues to be held on the drum surface by the vacuum until it encounters the stacking wheel extremity which, by virtue of the lower peripheral speed of the stacking wheel, acts against the vacuum to strip the sheet from the drum. The stacking wheel axis may be mounted for pivotal movement about the vacuum drum axis to accommodate different output stack sizes, permitting the formation of a sheet store buffer.

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Other info:

Inventors: Chapman, Christopher P. (Hayling Island, GB)
Boulter, David G. (Clanfield, GB)

Application Number: 952182
Filing Date: 1978-10-17
Publication_date: 1980-09-16
Assignee: De La Rue Systems Limited (London, GB2)
Primary Class(es): 271/3.03 271/3.01, 271/178, 271/196, 271/214, 271/307, 271/315, 414/798.3, 414/798.5
Other Classes:
US Patent Ref:

3049346	Aug, 1962	Evansen	271/4.
3116668	Jan, 1964	Novick	271/187.
3162439	Dec, 1964	Poland et al.	271/187.
3355169	Nov, 1967	Seyl	271/187.
3545746	Dec, 1970	Ledger et al.	271/196.
3682473	Aug, 1972	Kuyt	271/3.

Other Refs:
Primary Examiner: Stoner, Jr., Bruce H.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak