Model of wharf jib crane
Model wharf jib crane, before 1753. The original crane was designed for Mr. Ralph Allen, a quarry owner at Bath, Avon. The rope passes over a vertical pulley and between two horizontal pulleys, the small roof keeps it dry. The gearing enables a large weight to be lifted using little effort and the horizontal pulley allows the arm to be turned easily.
- King George III
- Object Number:
- wharf jib cranes
- King's College, London
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