| 摘要 |
1,017,687. Winding webs. H. E. MEYER, [trading as MASCHINENFABRIK MAT KRONERT]. Aug. 4, 1964 [July 17, 1963], No. 30685/64. Heading B6B. A web 18 being wound on to a web-roll 4 is guided over rollers 19, 8 and 6. Roller 6, which bears against the periphery of the webroll due to the tension in the web, is mounted on a pair of pivoted arms 5 which carry a counterweight. 20 to balance the weight of the roller 6. The pivot axis of the arms is provided with a ratchet mechanism 19<SP>1</SP> which limits the movement of the arms to one direction only. Two ratchets may be provided, operative selectively, so that the arms may pivot counterclockwise as shown in Fig. 2 or clockwise when the roller 6 bears against the underside of the web-roll 4 as in Figs. 3 and 4 (not shown). |
