Observatory roof John Smeaton
Product images of Observatory roof
Sectional elevation [top] of the cap structure and base rings of the observatory roof at Thorley Hall, Hertfordshire, and a detail view [bottom] of one of the lidds, which enable movement in the structure.
Top inscription: ‘Section of the Caps and three Rings of Mr. Raper’s Observatory’ Bottom inscription: ‘Section of the Lidds of Mr. Raper’s Observatory at Thorley Hall’
Original drawing from Designs by the late John Smeaton made on various occasions in the course of his employment as a Civil Engineer from the year 175[?] to 179[?], Volume 4. Containing Designs for Bridges and Buildings. Collected and arranged by John Farey, 1821.
John Smeaton (1724-1792) was a British civil engineer, he was elected a Fellow of the Royal Society in 1753.
John Farey (1766-1826) was a British geologist and surveyor, he worked on the published reports of John Smeaton’s work between 1809 and 1812.
- Image reference: RS-17821
- ©The Royal Society
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