| 摘要 |
<p>1,136,051. Laminated fibrous webs. JOHNSON & JOHNSON. 2 June, 1966 [17 June, 1961], No. 24655,66. Heading B5N. [Also in Division D1] Apparatus for cross laying webs, strands or as shown a thread comprises a belt 37 driven e.g. over pulleys 35, 36, a belt 38 within belt 37 and driven thereby e.g. by notched engagement 39, a guide such as a tube 40 for the thread attached to the inner belt, plates 43 to guide the belts along straight paths such that as the belts are driven the guide 40 reciprocates and lays the thread on a pair of conveyers 50, 51 each having means such as upstanding pins 60 to hold the thread. The web of threads e.g. of cotton may on leaving the conveyers 50, 51 be brought on to a paper or non-woven fabric and bonded thereto as reinforcement; a second non-woven fabric may be bonded on top. Alternatively a web e.g. of rayon is contacted with a warp of adhesively coated yarns to form a scrim. Suction means 60, 61 are provided to assist in positioning the thread on the pins and the conveyers may be tilted outwardly where the thread first engages the pins. By varying the distance of guide 40 from belt 38 the guide may follow a loop or figure eight path. By correct arrangement of transverse and conveyer speeds the threads may be laid at any desired angle to the direction of motion of the conveyers. In Fig. 4, not shown, the path or travel of the guide is at an angle to the transverse axis of the conveyers so that the speed of the conveyers can be allowed for and the yarn laid at right angles to the longitudinal axis of the conveyers. Two or more pairs of such belts may be arranged above the conveyers to lay successive, interspaced threads.</p> |
