Dingo that is one cool old piece of equipment. Any idea what that flywheel used to drive?
This will give you an idea..................................
Apart from threshing work, portable engines were used to drive corn-mills, centrifugal pumps, stone-crushers, dynamos, chaff-cutters, hay-balers and saw benches. They were even used to generate electricity for floodlighting at football matches, the first instance being at Bramall Lane, Sheffield in 1878.
In general, the portable engine is hauled to the work area, often a farmyard or field, and a long drive belt is fitted between the engine's flywheel and the driving wheel of the equipment to be powered.
In a number of cases, rather than being towed from site-to-site, the portable engine was semi-permanently installed in a building as a stationary steam engine, although the wheels were not necessarily removed. In this configuration, they are generally called Semi-portable engines.
A more extreme use occurs where the engine is removed from the boiler and is re-used as a stationary engine. Often, the boiler is also re-used (without its wheels) to provide the steam. As of 2007, there are still examples of such dismantled portable engines working commercially in small rice mills in Burma (and, no doubt, elsewhere too). Such examples are easy to identify due to the curved saddle, below the cylinder block, that was used to mount the engine to the boiler. Thousands of 1 horsepower portable engines were built in China, during the Great Leap Forward of 1958. Every village and peasant was encouraged to build a small iron smelter and produce pig iron. To power the blowers to sustain the retort temperatures, small straw burning engines were built. It was all to no effect as the end pig iron was of very poor quality for any use.