<P> The container is then picked up from the mould by the "take - out" mechanism, and held over the "deadplate", where air cooling helps cool down the still - soft glass . Finally, the bottles are swept onto a conveyor by the "push out paddles" that have air pockets to keep the bottles standing after landing on the "deadplate"; they're now ready for annealing . </P> <P> The forming machines hold and move the parts that form the container . The machine consist of basic 19 mechanisms in operation to form a bottle and generally powered by compressed air (high pressure - 3.2 bar and low pressure - 2.8 bar), the mechanisms are electronically timed to coordinate all movements of the mechanisms . The most widely used forming machine arrangement is the individual section machine (or IS machine). This machine has a bank of 5--20 identical sections, each of which contains one complete set of mechanisms to make containers . The sections are in a row, and the gobs feed into each section via a moving chute, called the gob distributor . Sections make either one, two, three or four containers simultaneously . (Referred to as single, double, triple and quad gob). In the case of multiple gobs, the shears cut the gobs simultaneously, and they fall into the blank moulds in parallel . </P> <P> After the forming process, some containers--particularly those intended for alcoholic spirits--undergo a treatment to improve the chemical resistance of the inside, called internal treatment or dealkalization . This is usually accomplished through the injection of a sulfur - or fluorine - containing gas mixture into bottles at high temperatures . The gas is typically delivered to the container either in the air used in the forming process (that is, during the final blow of the container), or through a nozzle directing a stream of the gas into the mouth of the bottle after forming . The treatment renders the container more resistant to alkali extraction, which can cause increases in product pH, and in some cases container degradation . </P> <P> As glass cools, it shrinks and solidifies . Uneven cooling causes weak glass due to stress . Even cooling is achieved by annealing . An annealing oven (known in the industry as a Lehr) heats the container to about 580 ° C (1,076 ° F), then cools it, depending on the glass thickness, over a 20--60 minute period . </P>

Guardian uses raw materials and other inputs to make glass