Des machines employées dans les constructions diverses
A French engineering treatise by J.-A. Borgnis, published in Paris by Bachelier in 1818, setting out machines used in construction work for builders and engineers. Its engraved plates show labelled mechanical diagrams: a wheeled frame with a geared drive, a long bridge-like machine with rollers, a multi-sheave tool plate with a water wheel, and a close view of a large spoked wheel on a timber cradle. A designer could draw on the crisp hatched line work and the schematic handling of gears, spokes and timber framing.
