Scientific American, Vol. 5, No. 47 (1850)
Scientific American, volume 5, number 47 from 1850 is a weekly American periodical reporting on patents, inventions and mechanical improvements for a general readership of inventors and mechanics. Its pages pair dense columns of text with precise line engravings of machines, and the two pictures here show a grain drill with its wheels, seed tubes and frame, and a tall pile-driving or hoisting frame with a long ladder-like braced stand, both drawn with clean outlines and cross-hatching a designer could borrow for technical diagrams.
