Workshop receipts
Workshop receipts is a practical handbook of trade recipes and techniques compiled by Ernest Spon, Robert Haldane and Charles Warnford Lock, published in London and New York by E. & F.N. Spon in 1883 for tradesmen and workshop practitioners. Its pictures are plain line diagrams of apparatus, including a cutaway valve body with inlet and outlet, a pivoted lever frame with pulley, a pipe fitting set into brickwork, and a vertical sectional mechanism, giving designers clear mechanical forms and schematic detail.
