Images courtesy of Brian Szafranski
The Harrison Machine Works was founded by John Cox & Cyrus Roberts in 1848 and incorporated in 1878. They are known to have been a manufacturer of steam traction engines (ca 1880's), portable steam engines, the Belleville separator, the Great Western separator, weighers, baggers, wagon loaders, and the Dingee-Woodbury horse power. They used the name Jumbo and a portrait of P. T. Barnum's elephant of the same name on their machinery. The last steam engine sold was in 1937.
Information Sources
-
American Steam Engine Builders: 1800-1900 by Kenneth L. Cope, 2006 page 113
- Steam Power on the American Farm by Reynold M. Wik, 1953 page 255
- The Steam Tractor Encyclopedia by John F. Spalding & Robert T. Rhode, 2011 pages 193-197