Device for producing thread-stitched book blocks

Details Device for producing thread-stitched book blocks Device for producing thread-stitched book blocks

2011-01-18

2011-01-18

Izaguirre, Ismael (Department: 3765)

Sewing

Special machines

Book sewing

C112S222000, C412S035000

Reexamination Certificate

active

07870828

ABSTRACT:
A device for producing thread-stitched book blocks from a stack of signatures are arranged flat one on top of the other and are stitched together by stitched seams formed at right angles to the folds by a binding thread passed repeatedly in double strands through the folds of the signatures. The device has a first stitching needle that inserts the binding thread and a second stitching needle that draws the binding thread through the fold from the inside. A punch needle, which passes through the fold from the inside edge to form a punched hole, is arranged opposite the first and second stitching needles, each of which forms a stitched seam. The section of the needle that is used to pierce a fold has a polygonal cross-sectional shape.

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“Polygraphische Technik”, Veb Fachbuchverlag, Leipzig, Germany 1978, 1stEdition.

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