The grime-covered can ... a metal can, buyers could clamp the edge of the can between two wheels and twist the handle of one of the wheels to move the blade around the lip. The Star can openers ...

The first can opener was a blade that sawed around the can's edge, leaving a jagged rim. U.S. Pat. No. 19063 How did the first tin cans get ... a jagged rim of raw metal as they went.

Locked onto the side of the tin, the key is used to open cans of corned beef — no external can opener ... metal clip to remove the key, flip the key around, pop it over that clip, and then twist ...

They said the metal was too thick for normal tin openers to cut through and often only scraped the surface. (Picture: Pembo362/ YouTube) Customers have long complained getting the lid off can be ...

Make clean, safe cuts to the thickest of food tin lids without exerting ... and automatically cut into the metal lid or along the lip of the can. Manual openers also require a lot of twisting ...