Philip Koehring (1876-1931)
The growth of the Koehring Machine Company in Milwaukee, Wisconsin, is a story of vision to foresee the need for hard roads. Philip Koehring, his brother William, and a third partner, founded the company in 1907. It would eventually grow into one of the largest equipment manufacturers in the world.
Koehring’s “boom and bucket” innovation streamlined the flow of concrete paving materials so as the machine was pulled forward, it mixed concrete and then distributed the final mix to the rear. He added two more advancements to improve the mechanization of concrete paving: self-propelling crawler tracks and engine power in place of steam power. He obtained 15 mixing and paving patents.
