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Creation of the Tin Can
Created by Peter Durand and made out of steel. Very unconventional, so thick that they had to hammer open the can and that is how it opened for a long time. -
Creation of the Commercial Canning Factory
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Creation of the first Can opener
The first can opener created by Ezra J. Warner. It used a chisel as a wedge to cut a hole throw the edge of the can and then a blade would them slice up the rest of the can. This was a very simple design mainly using wedges to poke an opening in the can and then splitting it open with a sharp wedge. -
Creation of the "Key" Opener
During this year, inventor J. Osterhoudt invented the Key Can Opener. It was fashioned so that a person could roll away the can's cover. It would create a 2nd class lever. The end of the key that was attached to the can would be the fulcrum, the can would be the load, and the "key's" handle would be the effort. Someone would twist the hnadle which would peel it open It's commonly used on sardine cans. -
Creation of the "Church Key" Can Opener
Invented in 1892 it was used to open "crown corks" that were commonly on glass bottles. It was single-handed lever that, when placed against the cap, it created a 1st class lever that, when pulled upwards, could crack off the cap. -
Church Key Opener used on tin cans
Using the Church Key Opener on Flat TopsThe church key opener is now being used to open flat top tin cans. Flat tops are what most cans are built as today. Using the same 1st class lever system, with the small point not in line with the main piece as the fulcrum, the can as the load and your hand as the effort, it could open the can. The opener could create openings in the can top tear open or just keep poking holes in it. -
Patent of the Pull Tab
The pull tab of the beverage can was patented in Thunder Bay by MIkola Kondakow. The pull tab was a basic 1st class lever and then a pulling motion. The person would take the tab of the can, push down until they heard the can open, and then pull back towards the edge of the can to open it. The this lever was created with the can's center being the load, the person's hand being a load, and rivet connecting the tab to the can being the fulcrum. -
Inventing of the Pop top can opener
Invented by Ermal Fraze, the pop-top can opener is one of the most commonly used openers since it is usually used on soda cans. Like the pull tab, it uses a short handle as its' load, the can as its' load, and the rivet connecting the two as it's fulcrum. It is very much like pull tab since it works the same. But, instead of also pulling backwards, the pop-top just needs to push downwards until the can opens and then the work is done. -
Modern Can Opener
The modern day can opener uses many different simple machines including gears, levers, and wedges. To use it you place the blade half of the opener on to the can and clamp hard. Then, you would turn the crank, the crank would move a gear and the gear would itself along the can and blade would cut open the can. The clamping mechanism is sort of like two 2nd class levers with the handles being where the effort was, the can being the load, and the piece connecting the two being the fulcrum.
