Appendix to the specifications of english patents for reaping machines
An 1853 appendix of English patents for reaping machines, compiled by Bennet Woodcroft and published under the Commissioners of Patents in London. Its plates are engineering line drawings of early harvesting machinery, with Fig. 1 and Fig. 2 of an 1786 Pitt machine showing a horse-drawn cart and toothed cutting mechanism. The drawings show gears, wheels, frames and reel mechanisms in precise hatched linework, useful to a designer wanting clean technical diagrams with mechanical detail.
