Demainbray's wharf jib crane model

Made:
1729-1753 in England

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Model of a wharf jib crane, maker unknown, England, 1729-1753. Once belonged to Stephen Demainbray.

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. This model was used by Stephen Demainbary in his lectures on natural philosophy. Demainbray worked as superintendent at the King's observatory at Kew from 1768 and his collection of instruments and apparatus was absorbed into the King's own collection.

On display

Science Museum: Science City

If you are visiting to see this object, please contact us in advance to make sure that it will be on display.

Details

Category:
King George III
Object Number:
1927-1928
Materials:
hemp, iron, ivory, lead, mahogany, paper
type:
model - representation
taxonomy:
  • visual and verbal communication
credit:
King's College, London

Cite this page

Rights

We encourage the use and reuse of our collection data.


Data in the title, made, maker and details fields are released under Creative Commons Zero


Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.