Society of Glass Technology · [Sheffield] · leaf 457
cted, theknife, 109, may be pusheddown clear of the bottom ofthe parison mould by a rod,100c, passing through theshaft, 100, and worked by asolenoid, 102. Specifications165800 and 164763 are referredto. (4) Brit. Pat., No. 165453,July 10th, 1917.—This relatesparticularly to the blowingmoulds and…
Glass
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