公开(公告)号：US3981212A

公开(公告)日：1976-09-21

申请号：US327488

申请日：1973-01-29

申请人： William B. McCain ,  James F. Cosgrove ,  Elmer D. Bewersdorf

发明人： William B. McCain ,  James F. Cosgrove ,  Elmer D. Bewersdorf

IPC分类号： B26D7/06 ,  B26D11/00 ,  B26D7/16

CPC分类号： B26D11/00 ,  B26D7/0625 ,  B26D7/0675 ,  B26D2007/0081 ,  Y10T83/2192 ,  Y10T83/461 ,  Y10T83/6476 ,  Y10T83/6579 ,  Y10T83/6582 ,  Y10T83/7633 ,  Y10T83/7653

摘要： 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.

摘要翻译： 三刀式修剪器被构造成将用于刀具的驱动器（一个前刀和两个侧刀）从用于夹持片材的驱动器（例如书本的片材）分离，同时被修整。 车站的刀具不同步运行，因此移动质量与先前形成的所有刀具同时朝同一方向移动的平均度相比。 分离驱动器还使得书籍能够从第一个刀具站提前到第二个刀具站。 就这样，有更多的时间允许转移，因此没有必要赶上这本书。

公开(公告)号：US3931963A

公开(公告)日：1976-01-13

申请号：US555698

申请日：1975-03-05

申请人： Elmer D. Bewersdorf

发明人： Elmer D. Bewersdorf

IPC分类号： B65H45/12 ,  B65H45/00

CPC分类号： B65H45/12

摘要： A folding machine having opposed discs respectively presenting a yieldable and an unyieldable annulus in tangential contact for imparting a score line to a sheet fed therebetween, inverting the scored sheet, the scored sheet after inverting is then folded (as by folding belts) to form a backbone after which the backbone is creased by being squeezed along its length to finish the fold.

摘要翻译： 折叠机具有相对的盘，其分别呈现切向接触的可屈服和不可弯曲的环形空间，用于向送入其间的片材赋予刻痕线，使得刻痕片材翻转，然后翻转后的刻痕片材折叠（如通过折叠带）形成 主骨架之后，骨架通过沿其长度被挤压而完成折叠。