Apparatus for the production of large glass containers

In an apparatus for the manufacture of large glass containers, comprising:

• a first preparatory mold;
• means for preparing a glass gob of a predetermined weight and feeding it to the first preparatory mold at a predetermined frequency to form a parison at the same frequency comprising a finished mouth of the glass container to be formed;
• a second prefinishing mold;
• means for linearly transferring the parison to the second, prefinishing mold;
• means for forming, at the same frequency, a prefinished parison in the second mold;
• two to four finishing molds;
• means for transferring the prefinished parison to one finishing mold;
• and
• means for finishing the prefinished parison in the finishing mold by blowing air into the prefinished parison;
• the improvement comprising:
• a. means for continuously rotating the finishing molds in a circular path at a rotational speed in a ratio of from 1:2 to 1:4 to the predetermined frequency;
• and
• b. said means for transferring the prefinished parison from the second mold to one finishing mold comprising means for feeding the unfinished parison at the predetermined frequency along a path substantially diametrical to the circular path;
• wherein two to four finishing molds are utilized for each first and second mold when the third molds are rotated at the appropriate ratio with respect to the predetermined transfer frequency.