08/28/2026
In the summer of 1821, the turnpike from Philadelphia to Erie was completed. Hardman Philips built what was the only screw mill in the US at that time. It is another amazing story of technological progress in the wilderness. The screw factory site is at Point Lookout beside the Moshannon Creek passed, as the only power available at that time was provided by a water wheel. These early screws, 1,000 gross per week, had a blunt tip, as the sharp tip process didn't exist. In fact in the end it was that improvement that doomed the endeavor, as well as the long road to market. In 1824, the Franklin Institute Exhibition in Philadelphia had this to say about Hardman's screw, made by American invention of his own iron; "The screws are superior to the best imported, and we hope that they will soon be brought into general use". Unfortunately, the wire tipped point and route to market ended the endeavor around 1837. The old factory burned in 1859. In 1915 the DAR acquired a piece of ground at the site and erected a memorial now visible at the site. The Foundation is looking to upgrade the monument and to apply for a PHMC historic marker.