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APPARATUS AND METHOD FOR REPAIRING ELONGATED FLEXIBLE STRIPS HAVING DAMAGED SPROCKET FEED HOLES ALONG THE EDGE THEREOF
APPARATUS AND METHOD FOR REPAIRING ELONGATED FLEXIBLE STRIPS HAVING DAMAGED SPROCKET FEED HOLES ALONG THE EDGE THEREOF
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机译:修复沿边缘具有损坏的链轮进给孔的加长柔性条的装置和方法
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1495038 Repairing damaged film perforations J S STANFIELD and P W TRESTER 22 Oct 1975 [29 Nov 1974] 43269/75 Heading G2E Film-strip having damaged or missing sprocket holes along one edge is repaired by attaching a reinforcing strip having corresponding sprocket holes. The film 22, whose sprocket feed perforations 24 may have been damaged or even torn away altogether, as seen in Fig. 2, passes from a supply spool 26 into the repair section of the apparatus, which is mounted on a support frame 44. The repair strip 34 is provided in the form of a roll of tape 32, already prepared with perforations which correspond with the perforations in the film-strip, and having a pressure sensitive adhesive on one side. The film is wound off spool 26, and passes between a pair of rollers 50, 52, the lower of which is heated, so as to smooth and straighten out the film. It then passes over guide rollers 70, 71 to the actual repair station which comprises two rollers 56, 58, between which the film and tape are passed in contact. The lower roller 58 has a smooth metal surface with sprocket teeth 60 round its periphery (seen more clearly in Fig. 4 (not shown)). The upper roller 56 carries a resilient rubber sleeve 74, having a series of apertures (114) (Fig. 4) which correspond with the sprocket teeth 60 (see also Fig. 7 (not shown)). As the film and repair tape are brought into contact between rollers 56, 58, they are initially aligned by a sprocket tooth passing through a sprocket hole in each. They are then laminated together as they are wound on by means of a handle, and are passed between a further pair of rollers 64, 66, which apply further heat and pressure. The film is finally wound on to a take-up reel 38. Thus the sprocket holes in the tape form reinforcement or replacement holes for those in the film.
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机译:1495038修复损坏的胶片穿孔J S STANFIELD和P W TRESTER 1975年10月22日[1974年11月29日] 43269/75标题G2E沿一条边缘损坏或缺少链轮孔的胶条通过安装具有相应链轮孔的加强条进行修复。如图2所示,胶卷22的链轮进给孔24可能已经损坏甚至完全撕裂,它从供片轴26进入设备的维修区,该维修区安装在支撑框架44上。修复带34以带卷32的形式提供,该带已经准备好与膜条中的穿孔相对应的穿孔,并且在一侧上具有压敏粘合剂。胶卷从卷轴26上卷绕下来,并在一对辊50、52之间通过,辊的下部被加热,以使胶卷平整。然后,它通过导辊70、71到达实际的修理工位,该工位包括两个辊56、58,胶片和胶带在两个辊之间相互接触。下辊58具有光滑的金属表面,该金属表面在其周缘周围具有链轮齿60(在图4中更清楚地示出(未示出))。上辊56承载有弹性橡胶套筒74,该橡胶套筒具有一系列孔(114)(图4),其对应于链轮齿60(也参见图7(未示出))。当膜和修复带在辊56、58之间接触时,它们首先通过穿过每个中的链轮孔的链轮齿对齐。然后当它们通过手柄缠绕时将它们层压在一起,并在另外的一对辊子64、66之间通过,这对辊子进一步施加热量和压力。膜最后被缠绕到卷带盘38上。这样,带中的链轮孔形成了增强或替换膜中的孔的孔。
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