Block house and blocks, 19th century

Block house and blocks, 19th century

C021/7824 Rights Managed

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Caption: Block house and blocks, 19th-century artwork. Block houses are a small, isolated type of fortification. The blocks at bottom are designs used for block-and-tackle lifting systems. These are systems of ropes and pulleys, with the rope threaded between the pulleys. The design of a block-and-tackle system enables the lifting of heavy loads. For just the blocks, see C021/7825. Artwork from 'Encyclopaedia Metropolitana' (1845).

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Keywords: 1800s, 1845, 19th century, architecture, artwork, black-and-white, block, block and tackle, block house, block-and-tackle, blockhouse, blocks, book, building, design, designs, diagram, encyclopaedia metropolitana, engineering, forces, fort, fortification, heavy, historical, history, illustration, lifting, load, mechanics, monochrome, no-one, nobody, page, publication, pulleys, rope and pulley, ropes, tackles, technological, technology

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