A Gazetteer of the British Iron Industry, 1490–1815
Isaac Wilkinson obtained patents, related to this in 1738 and 1757.20 The earlier patent is described as for cast-iron smoothing irons, but it also dealt with iron 'bellows', consisting of 'two cylinders of cast iron' with pistons.21 In 1737, he had cast 'a pair of cast iron cylindrical bellows' for his employers' Backbarrow Forge ...
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