Title: Staple draft devices

Abstract: This invention relates to a staple draft device comprising a pair of feed rollers and a pair of drawing-off rollers, said pairs determining therebetween the course of a staple lap to be drawn off, there being at one side of said course a feed roller with needle-like projections and a control roller also with such projections, and at the other side of said course a supplementary needled-surface roller which co-operates solely with said needled-surface feed roller, and a single levelling-down roller which is smooth, co-operates solely with said needled-surface control roller, and is preferably positively driven at an angular speed such that the peripheral speeds of said levelling-down and control rollers with needle-like projections are equal.

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Inventors: Roger, Gauvain (Buhl, FR)

Application Number: 450151
Filing Date: 1974-03-11
Publication_date: 1976-03-09
Assignee: Societe Alsacienne de Constructions Mecaniques de Mulhouse (Mulhouse, FR)
Primary Class(es): 19/258 19/295
Other Classes:
US Patent Ref:

460083	Sep, 1891	Dunham et al.	19/260.
2219666	Oct, 1940	Solanas	19/236.
2644988	Jul, 1953	Haythornthwaite et al.	19/261.
3417436	Dec, 1968	Masurel	19/258.

Other Refs: 264,57494,895

Jan, 1927	UK
Nov, 1897	DD

Primary Examiner: Newton, Dorsey
Assistant Examiner:
Attorney: Holman & Stern