| 摘要 |
1392274 Making envelopes K-H HONSEL 24 April 1973 [20 May 1972] 19309/73 Addition to 1342207 Heading B5D In an envelope making machine having cooperating first and second cylinders 10a, 11a carrying folding blades 13a-13a<SP>11</SP>, 16a and folding tongs 15a-15a<SP>11</SP>, 14a, and a third cylinder 12a carrying a folding blade 19a for cooperation with folding tongs 18a-18a<SP>11</SP> on the first cylinder, the second and third cylinders 11a, 12a have the same dimensions and are interchangeable. The machine further includes a pressure belt 17a which in operation has a greater linear speed than the peripheral speed of the first cylinder 10a. A gripper drum 22b conveys the folded envelopes on to a conveyer 26a. |
