Mechanical Powers according to the latest Improvements, including White’s Patent Concentric Pulley

This engraving illustrated the “System of Mechanics” article in the second volume of William Henry Hall, The New Royal Encyclopaedia, or Complete Modern Dictionary of Arts and Sciences (London, 1788). The “Blake delin.” signature in the lower left probably refers to William Blake (1757-1827), a noted English poet, painter, and printmaker. The “Lodge sculp.” signature in the lower right is probably that of John Lodge, a London engraver.
Ref: “Of a System of Concentric Pulleys, Already Known as White’s Patent Pulleys,” in James White, A New Century of Inventions (Manchester, 1822), pp. 33-42.
Currently not on view
date made
ca 1790
place made
United Kingdom: England, London
Physical Description
paper (overall material)
overall: 15 in x 9 in; 38.1 cm x 22.86 cm
overall: 15 1/16 in x 9 1/8 in; 38.25875 cm x 23.1775 cm
ID Number
catalog number
accession number
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Prints from the Physical Sciences Collection
Data Source
National Museum of American History


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