| 摘要 |
1290829 Creasing sheet material PAPER CONVERTING MACHINE CO Inc 19 April 1971 [2 July 1970] 26787/71 Heading B6J [Also in Division B8] Sheets of soft absorbent material having been folded into four layers are passed in sets of two spaced laterally apart between rollers 25, 35, Figs. 2 and 3. The roller 25 carries two sets of creasing blades, two blades 33 laterally spaced and similar blades 32 diametrically opposite. Each blade is secured in a recess 51 in the roller by a clamp 52 secured by bolts received in internally threaded apertures 53 in the roller 25. The blades each co-operate with one of one pair of hard rubber pads 50 secured in a recess 55 in the roller 35 by a clamping bar 56 secured by bolts threadedly received in apertures 57 in the roller 35. The roller 25 is twice the diameter of the roller 35.
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