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  • image SM 77/1/17

Reference number

SM 77/1/17


[47] Working drawing for girders


Plans and elevations for two varying types of girder


bar scale of 3/4 inch to 1 foot


Robert Knight Esqre. Plan and Elevation of Girder under lead flat A.B., Plan and Elevation of Girder under the Chamber wall C.D., No.11 / 12 July 1819 / SamllLake

Medium and dimensions

Pen, yellow, blue and Indian red washes, pricked for transfer on wove paper (355 x 504)


Undated, probably George Bailey (1792-1860), pupil and assistant (August 1808 - January 1837) and Edward Foxhall (1793-1862), pupil and assistant November 1812 - January 1821


The topmost girder is a queen post truss girder, the one below is a variant.
The captions to the drawings refer to the 'lead flat A.B.' and the 'Chamber wall C.D.' Drawing [43] for the timbers is marked 'AB' and 'CD' and drawing [39] shows the first floor plan with the wall to the servants' rooms ('Chamber wall') and also the flat lead-covered roof ('lead flat').



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