History of Key Machines

The first production pin tumbler lock cylinder was invented by Linus Yale, Jr., in 1861. The need for mass produced keys became more prominent in America as the use of pin tumbler cylinders were being used for security of homes, business and government agencies throughout the country.  This overwhelming need of mass produced keys led to the reciprocating file cutter invention. There are very few of these rare file cutters that have survived over the years.       

         In 1895 the first key machine patent was granted to Edmund R. Darling of Providence Rhode Island. Mr. Darling licensed the Graham Manufacturing Company to manufacture and distribute his key machine. 

       Graham offered this machine in a hand crank and a flat belt driven model. With either machine you received a large fiber or a steel saw type cutting wheel. They were both available in sizes from 6" to 9" in diameter.   

Keys are uniquely made in all shapes and sizes depending on the cylinder type. Each key machine was designed to cut specific or multiple types of keys formatted with the cylinder. This has led to a multitude of different designed and engineered key machines being produced over time.  

 The museum currently has over 300 key machines in it's collection spanning from the 1800's through present time.