Vacuum feed mechanism

Details Vacuum feed mechanism Vacuum feed mechanism

1975-06-16

1977-02-22

Saifer, Robert W.

Sheet feeding or delivering

Feeding

Separators

271132, B65H 312

Patent

active

040088898

ABSTRACT:
A pneumatically operated mechanism for feeding envelopes or other similar stacked articles from a stacked position into a second position where stamping, gluing or the like may be performed. The feed mechanism includes a pneumatic cylinder having a fixed piston rod and a movable cylinder driven by a slide wheel mechanism in such a manner as to create a vacuum at a reciprocating, article engaging, slide shuttle when the cylinder is moved in one direction. When the cylinder is moved in a reverse direction the vacuum is released, allowing the article engaging shuttle to return to the stacked articles for reapplying the vacuum for removing an article.

REFERENCES:
patent: 898721 (1908-09-01), Cheesman
patent: 1999836 (1935-04-01), Guilbault
patent: 2004882 (1935-06-01), Vorms
patent: 3334894 (1967-08-01), Van Acker
patent: 3490763 (1970-01-01), Darwin
"Converting Mechanisms for Rotary-Linear Motion" Product Engineering; vol. 30, No. 9; pp. 64 & 65; Mar. 2, 1959.

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