Society of Glass Technology · [Sheffield] · leaf 631
event any oil which drips from the nozzle from passing intothe inlet. In one construction, Fig. 159, the valve facing, b3, nevercomes in contact with the inner surface of the sleeve, E, and isformed on the end of a detachable sleeve, 66, which is mountedon the end of the barrel, B, and carries… … Fig. 160. integrally with the casing, A, and the spiral blades, b4, are formedintegrally with the barrel. The sleeve, E, may be formed with aninner valve surface, e1, which co-acts with the valve facing, bz,formed on the end of the barrel, or the outer end of the sleevemay be flared, as shown in…
Glass
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