Society of Glass Technology · [Sheffield] · leaf 658
on oflocking or unlocking thetable controls the air for packing the metal into the pIG jog mould, for operating the plunger, 66, which forms the mouth of the bottle, for operating themould cover, 91, and for blowing-up the parison in the mouldagainst this cover. The construction of the valve and…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
