Introduction
An Allen key, also known as a hex key or a hex wrench, is a common tool used to tighten or loosen screws or bolts with hexagonal sockets. It is a simple yet effective tool that can be found in most households and workshops. However, have you ever wondered who invented the Allen key?
Early History of Hexagonal Fasteners
The use of hexagonal fasteners dates back to the early 1900s. They were primarily used in the automotive industry, where they were found to be more reliable than square-headed bolts, which tended to slip or round off when tightened too much.
However, the early hexagonal fasteners were not standardized, and each manufacturer had their own unique design. This made it difficult for mechanics and technicians to find the right tool for the job.
The Invention of the Allen Key
The Allen key was invented in 1910 by a man named William G. Allen. Allen was a Canadian-born engineer who worked for the Allen Manufacturing Company in Hartford, Connecticut. The company specialized in making cold-drawn steel tubing, and Allen was tasked with finding a way to make the tubing stronger and more reliable.
During his experiments, Allen came up with the idea of using a hexagonal socket to hold the tubing in place. He also designed a matching L-shaped wrench that could be used to tighten or loosen the bolts.
The Popularity of the Allen Key
The Allen key quickly gained popularity among manufacturers and mechanics. It was easy to use, reliable, and could be used in tight spaces where other tools could not.
In the 1930s, the Allen Manufacturing Company changed its name to the Allen Group, and the Allen key became known as the "Allen wrench." The company also began to produce other tools and fasteners, including the popular socket head cap screw, which is still used today.
The Legacy of William G. Allen
William G. Allen's invention of the Allen key has had a lasting impact on the manufacturing and automotive industries. The standardized hexagonal socket and L-shaped wrench have made it easier for technicians and mechanics to find the right tool for the job.
Today, the Allen key is used in a wide variety of industries, from construction to electronics. It is a simple yet effective tool that has stood the test of time.
Conclusion
In conclusion, the Allen key was invented by William G. Allen in 1910. His invention has had a lasting impact on the manufacturing and automotive industries, and the Allen key is still widely used today. Whether you're tightening a bolt on your car or assembling furniture, the Allen key remains a reliable and essential tool.