Society of Glass Technology · [Sheffield] · leaf 213
factors can be varied by adjustment itwill be appreciated that the decrease in diameter at any part of thegathering due to its elongation by gravity can be compensated for,and the body and upper end can be made to conform to any recpuiredshape. The lower end or point of the gathering can be… … Fig. 9.— Paddle-needle Diagram. needle which tends to retard the motion of the glass through theorifice and constrict the issue of glass while the severing processtakes place. At the commencement of the up stroke the movementof the glass below the orifice discharge is changed by the upwardimpulse…
Glass
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