Society of Glass Technology · [Sheffield] · leaf 595
the bar by the spring,23, whilst the rollers, 15, are mounted on studs carried by the levers,20, which can swing on their studs, 20a, thus moving the upper endof the sliding bars up or down. The movement of these levers, 20,is controlled by the connecting rods, 24, the upper ends of which 164… … Fig. 140. of the levers, 31, the upper ends of which carry rollers, 32, whichare held in contact with the cams, 33, by the springs, 34. The cams are so arranged that the shear blades travel towardseach other in their upper position until theyreach, or nearly reach, the stream of glass, thenthe…
Glass
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