A few brief comments about some of the names:
Some of those names are well documented and are often found in engine books. For example Nurnberg was the 'world leader' in building large gas engines in the early 1900's, and their designs were also used by other engine builders, e.g. Allis-Chalmers etc. In my 1909 booklet Large Gas-Engine Design (Lindsay reprint) there were 28 companies building very large gas-engines (i.e. over 1,000 hp), Nurnberg heads the list for most engines sold.
(I am pretty sure Nurnberg was actually the company known as M.A.N. Two seperate companies from Augsburg and Nurnberg became M.A.N in 1898, but they remained as seperate divisions with engines known by their original names as they made different designs for many years.)
John Cockerill of Seraing, Belgium is a famous name to anyone reading about iron, steel, steam engine building etc - they were (are) one of Europes great industrial companies, and were reknown for their steam engines from early days, they even had an interest in internal combustion engines as early as 1863 (Barsanti and Matteucci) as a competitor to Lenoir. Cockerill was one of the first companies to build engines to run on blast furnace gas - their four-stroke design was running in 1898. Cockerill built the French Simplex engines, I think this design was used in their gas and blast furnace gas engines.
Lyle Cummins book Internal Fire is excellent for this sort of info, it says that by 1900 a single cylinder of 1,300mm bore x 1,400mm stroke was developing 600 bhp at 90 rpm on blast furnace gas. (Junkers (with Oechelhauser) got his start designing two-stroke opposed piston engines to burn blast furnace gas, the first running in 1896).
Snow was another company reknown for their steam pumping engines, they sucessfully moved into internal combustion engines and were builders of massive gas engines.
Korting was another reknown German builder of engines. It is interesting to read in Internal Fire that they were (in)famous for over-turning Otto's patents in Germany (held by Deutz). Korting took Otto to court using the Beau de Rochas tract of 1862 which suggests the idea for a four-stroke cycle. And so the Otto patents were overthrown in Germany, and Korting and others were able to charge ahead with four stroke engines too.
According to Internal Fire, De La Vergne Machine Co. of New York City aquired the US rights to the Akroyd Stuart patents from Hornsby in 1893. Hornsby sent one of their engineers to New York to introduce Hornsby shop practises, and De La Vergne became the most sucessful four-stroke oil engine in the US during that era.
Professor Banki offered a high compression petrol (and later oil) engine design, built by Ganz & Co, Budapest from 1894. It boasted a startling high compression ratio (6.5:1) and efficiency (28%), this being achieved by water injection - lots of it. Lyle Cummins suggests the large amount of water used may have been a handicap to this design. I wonder what Banki design was being offered by 1916? (As the following post shows, this book was very out of date in 1916)
