This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
In boiling eggs the usual method of dropping the eggs from a spoon into the boiling water often results in a burn, as well as in cracking of the eggs by the fall. In removing the eggs from the hot water and taking one out at a time, no two will be cooked alike. To overcome these difficulties I constructed an egg boiler as illustrated.
Ill: The Eggs are Prevented from Becoming Cracked and All are Easily Handled in One Operation
A pan was procured - tin or aluminum as desired - about 1 in. deep and 5 1/2 in. in diameter, and holes were drilled in the bottom having dimensions as shown. A handle was attached to the center with washers and nuts. The small ends of the eggs are set in the 1 3/8in. holes and the whole pan set in a vessel of boiling water. When the boiling is completed, the entire lot of eggs are removed at the same time. As the device with its load of cooked eggs is quite pleasing in appearance, it may be set on a plate and the eggs served from it on the table. - Contributed by W. E. Crane, Cleveland, O.