Sheet-material associating – Associating or disassociating – Sheet associating
Patent
1975-03-12
1976-06-08
Burr, Edgar S.
Sheet-material associating
Associating or disassociating
Sheet associating
270 86, B65H 4522
Patent
active
039617831
ABSTRACT:
Folding apparatus includes an endless grooved belt mounted for movement along a linear folding path opposite a second endless belt which is V-shaped in cross-section for coaction with the groove of the grooved belt to thereby create a fold in sheet material therebetween.
REFERENCES:
patent: 331281 (1885-12-01), Crowell
patent: 3202066 (1965-08-01), Palmer
Burr Edgar S.
Heinz A.
Morsell, Jr. Arthur L.
Pratt Manufacturing Corporation
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