公开(公告)号：US3983773A

公开(公告)日：1976-10-05

申请号：US566765

申请日：1975-04-10

申请人： Duane A. Davis ,  Michael P. Krenick

发明人： Duane A. Davis ,  Michael P. Krenick

IPC分类号： B23B35/00 ,  B26F1/02

CPC分类号： B26F1/02 ,  Y10T83/0596 ,  Y10T83/40 ,  Y10T83/8732 ,  Y10T83/8749 ,  Y10T83/8858

摘要： The apparatus of the present invention comprises at least one hole-punching device operated by a pneumatic cylinder for driving a punch rod through the peripheral surface and radially to the center of a roll of roofing sheet material. The method of the invention provides for the steps of preparing the sheet roofing material, winding the sheet into a roll, and punching a plurality of perforation holes in the roll from the surface to the center thereof.

公开(公告)号：US4041815A

公开(公告)日：1977-08-16

申请号：US680887

申请日：1976-04-27

申请人： Duane A. Davis ,  Michael P. Krenick

发明人： Duane A. Davis ,  Michael P. Krenick

IPC分类号： B26F1/02 ,  B26F1/24

CPC分类号： B26F1/02 ,  Y10T156/1057 ,  Y10T83/0481

摘要： The apparatus of the present invention comprises at least one hole-punching device operated by a pneumatic cylinder for driving a punch rod through the peripheral surface and radially to the center of a roll of roofing sheet material. The method of the invention provides for the steps of preparing the sheet roofing material, winding the sheet into a roll, and punching a plurality of perforation holes in the roll from the surface to the center thereof.

摘要翻译： 本发明的装置包括至少一个由气动缸操作的孔冲孔装置，用于驱动穿过圆周表面的冲头杆并且径向地驱动到一卷屋顶板材的中心。 本发明的方法提供了制备片材屋面材料的步骤，将片材卷绕成卷筒，并且从表面到中心冲压卷筒中的多个穿孔。