Scientific American, Vol. 32, No. 22 (1875)
This is a weekly American science and invention periodical, Scientific American volume 32, number 22, published in New York in 1875 for a general readership of mechanics, inventors and engineers. Its pages carry wood-engraved drawings of machines and devices, shown in exploded or cutaway views with lettered parts. The figures here include a wheel with a cutaway hub, a ditch-cutting frame on wheels, McKinley's walk and road cleaner with geared drive, and Abbott's Little Giant hub borer clamped to a bench; a designer might borrow their clean line work and labelled-detail layout for technical diagrams.
