James A Cosby

US Patent:

40381307, Jul 26, 1977

Filed:

Jul 16, 1975

Appl. No.:

5/596407

Inventors:

James Lynwood Cosby - Parkville MD
Gordon Lawrence Morgret - Baltimore MD

Assignee:

Koppers Company, Inc. - Pittsburgh PA

International Classification:

B31F 100

US Classification:

156473

Abstract:

Herein disclosed is a corrugating machine for forming a single-face corrugated paper web from a pair of webs passing therethrough. The corrugating machine comprises a first corrugating roll and a second corrugating roll parallel to and in meshing engagement with the first corrugating roll, the second corrugating roll carries a web of corrugated paperboard material around a portion of the outer periphery thereof. A floating guide continuously urges the corrugated web against the outer periphery of the second corrugating roll and is automatically self-adjusting for compensating for irregularities in the second corrugating roll and the corrugated web. An adhesive roll is in contact with the corrugated web extending around the second corrugating roll for applying adhesive to the tips of flutes on the corrugated web. A pressure roll carrying a facing web on the outer periphery thereof is in contact with the adhesive covered tips of the corrugated web forming the single-face corrugated web.

US Patent:

40861201, Apr 25, 1978

Filed:

May 19, 1976

Appl. No.:

5/687906

Inventors:

James L. Cosby - Parkville MD
Gordon L. Morgret - Baltimore MD

Assignee:

Koppers Company, Inc. - Pittsburgh PA

International Classification:

B31F 100

US Classification:

156473

Abstract:

An improved web guide structure of the self-adjusting type for a corrugated web single-facer machine including a plurality of laterally spaced guides for continuously and yieldably urging a corrugated medium web against a lower corrugator roller, a support rigidly mounted to the single-facer for pivotally supporting the guides, and a gravity-actuated and adjustable biasing means for urging the guides against the corrugated web at preselected pressures. The guides preferably include a trailing guide portion that remains in engagement with an adhesive applicator roll when the roll is moved out of engagement with the corrugated web to maintain alignment of the guides with the roll. Springs may also be used in conjunction with the support to apply greater or lesser pressure to all of the guides simultaneously. The method includes applying pressure at selected lateral locations across the width of the corrugated web, such pressure being yieldably applied to each of the guides by an elastic member or by gravity-actuated counter-weights.