Soda can dating
These were called "cone tops", as their tops had a conical taper up to the smaller diameter of the cap.Cone top cans were sealed by the same crimped caps that were put on bottles, and could be opened with the same bottle-opener tool.The ring was riveted to the center of the top, which created an elongated opening large enough that one hole simultaneously served to let the beverage flow out while air flowed in. Fraze had forgotten to bring a can opener and was forced to use a car bumper to open a can of beer.Thinking there must be an easier way, he later stayed up all night until he came up with the pull tab.
In 2008, an aluminium version of the crowntainer design was adopted for packaging Coca-Cola's Caribou Coffee beverage.These early cans did not have a 'pull tab', instead they had a 'crown cork' (beer bottle top).All modern UK canned beer is descended from these small, early cans which helped change the drinking and beer-buying habits of the British public.Various breweries used crowntainers and conetops until the late 1950s, but many breweries kept using the simple cylindrical cans.
The popularity of canned beverages was slow to catch on, as the metallic taste was difficult to overcome with the interior liner not perfected, especially with more acidic sodas. First for the distributors, flat-top cans were more compact for transportation and storage and weighed less than bottles.Into the 1970s, the pull-tab was widely popular, but its popularity came with a significant problem, as people would frequently discard the pull-tabs on the ground as litter, or drop them into the can and risk choking on them.