Today, bottles are designed with the aid of a computer. Glass manufacturers discuss the size and shape of a bottle with their customers before it is made. Manufacturers can also work out the minimum amount of glass that is needed to make a bottle.
Modern design means that bottles are lighter and cheaper than they used to be, but still strong enough that they do not break when they are opened or handled. Making sure that a bottle stands up and pours well is also important!
Making a light bulb
The glass parts of light bulbs, known as envelopes, are made on a fully automated machine running at high speed. A ribbon of molten glass from the furnace is blown into little blisters by a continuously moving chain of blow heads. Each blister drops into a mould as it passes under the glass ribbon. The glass bulbs are then cut from the ribbon by a rotating disc and collected on a conveyor belt, where they are taken to be annealed.
Glass bottles are made in a variety of shapes and sizes.
New bottle shapes are designed with the aid of computer images.
Picture Credit : Google