Peter Rooke explains the fundamentals of magnetism and describes how to make your own magnet charger - Part 1 of 2
One man and many friends bring a piece of history back to life
ets assume we want to run a 10 kilowatt, 1,800 RPM DC generator with our antique 30 HP tractor. We are told we'll need about 17 HP to power the generator at the full 10-kilowatt output. The tractor's belt pulley capability will undoubtedly be sufficient since this rating is always less than the engine's rating by just a few horsepower. This is because of the slight amount of loss attributable to gears and bearings. The rated speed of the belt pulley is 1,000 RPM. The pulley is 10 inches in diameter and 7 inches wide.
At one time, perhaps up through the 1940s, it was very common for an industrial complex to have one large power unit to power the whole operation by means of one or more long lineshafts.
A Pennsylvania man makes his own portable sawmill and recreates up-and-down sawmill history.
Fairbanks-Morse-powered Myers pump makes double trouble for a pair of restorers.
Readers' Engine Questions: Upright, Mower Colors, Busy Bee, Merry, Monac, Stover Novelty Works...
Readers Engine Questions: Mystery Lawn Mowers & Maytag Mixtures