Roosa's pump came out in 1947 and was first used in Hercules diesels in Oliver Cletrac crawlers in 1952. Around 1953, Continental started using them around 1954. Then Buda in 1956 (later bought by Allis Chalmers).
There are two Bosch rotary pumps. American Bosch (AMBAC) was being developed around the same time as Veron Roosa's pump. They were in competetion with each other . . at least with the smaller pumps. The Robert Bosch rotaries from Europe along with Lucas CAV, Rotodiesel, etc. were all built under license from Stanadyne. That began in 1953. They paid to utilize Roosa's basic design.
AMBAC became a separate company from the Robert Bosch company during, WWI when the US seized all their holding that were in the USA.
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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