Cleaning Discolored Silver
A very quick way to clean silver when it is not tarnished, but merely discolored, is to wash the articles in a weak solution of ammonia water. This removes the black stains caused by sulphur in the air. After cleaning them with the solution, they should be washed and polished in magnesia powder or with a cloth. This method works well on silver spoons tarnished by eggs and can be used every day while other methods require much time and, therefore, cannot be used so often.
How to Make a Small Electric Motor
By W. A. Robertson
The Field-Coil Core is Built Up of Laminated Wrought Iron Riveted Together
The Bearing Studs are Turned from Machine Steel
Two of Each Length being Required.