Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1973-01-29
1976-09-21
Yost, Frank T.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83268, 83404, 83422, 83424, 83467, 83925A, B26d 706, B26d 716
Patent
active
039812120
ABSTRACT:
A three-knife sheet trimmer is so constructed as to separate the drive for the knives (one front knife and two side knives) from the drive for the clamps which hold the sheets (e.g., the sheets of a book) stationary while being trimmed. The knives at the stations are operated out of phase, and the moving masses are therefore balanced compared to the previous form of these trimmers where all knives move in the same direction at the same time. Separating the drives also enables a book to be sooner advanced from the first knife station to the second knife station. This being so, there is a greater allowance of time in which to make the transfer, and hence there is no need to rush the book.
The stops at the several knife stations against which a book is advanced may be adjusted simultaneously, and the separate feed means which advance or feed the books first from the first knife station to the second knife station and then out of the second knife station, may be opened or spread apart simultaneously either for re-adjustment to accomodate books of a different size or for the purpose of clearing a jam.
REFERENCES:
patent: 1892327 (1932-12-01), Buccicone et al.
patent: 2482685 (1949-09-01), Moyer
patent: 3146650 (1964-09-01), Sarring et al.
patent: 3167987 (1965-02-01), McCain
patent: 3499355 (1970-03-01), Wiatt et al.
patent: 3570344 (1971-03-01), Bryson et al.
patent: 3575076 (1971-04-01), Baldwin et al.
Bewersdorf Elmer D.
Cosgrove James F.
McCain William B.
Kinzer James B.
Yost Frank T.
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