Gebhard JaegerDied 11 Sep 1959 at age 85 (born 19 Jun 1874).German-American inventor, engineer and manufacturer who is credited with designing the first concrete mixing machine in 1905. His U.S. patent issued 19 Feb 1924 (No. 1,484,028), shows the familiar design long used on construction sites. He formed the Jaeger Machine Company, which became the world's largest manufacturer of concrete mixers (1906-1992). At age 18, he emigrated from Germany and settled in St. Louis, MO, then moved in 1900 to Pittsburgh, PA, where he invented and co-patented a machine to maken woven wire fencing. In 1902, he moved to Columbus, OH, and designed the Hayden Concrete Block Machine. He thereafter took out various concrete mixer patents, including a concrete mixer truck (1928), which delivered ready-mixed product to construction sites and contributed to extensive road building in the U.S.« |
