Egg topper
Egg toppers or egg openers are cutlery items that are designed to make it easier to open soft-boiled eggs . To do this, they mechanically cut through the shell around the tip of the egg.
The usual design of egg heads consists of a hollow ring containing a loop made of sheet steel with teeth pointing inwards, which is pulled together by a scissor-like mechanism and thus cuts the eggshell in a controlled manner.
Another construction consists of a ring with internal, eccentrically rotating small blades. The ring is placed on the egg, the blades hook into the shell and cut through it by turning.
Another shape corresponds approximately to a pair of scissors with an additional cuff, which is used for positioning and fixing on the egg.
In addition, there are constructions that consist of a bell to be placed on the egg with a sharp ridge pointing inwards, which cuts the shell through a blow with a weight (depending on the model also supported by spring force).
Ferdinand Fleischmann from Mödling received a patent in 1907 for an egg opener with teeth and scissor mechanism, which was an improvement on older models.
Egg topper with scissor mechanism
Egg topper with eccentric blades
Web links
Individual evidence
- ↑ Clack - the cause of the eggshell breaking point (YouTube video)
- ↑ United States Patent Office, Patent Number 875419, December 31, 1907