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image SM 37/2/12

Reference number

SM 37/2/12

Purpose

[3] Design for a roof truss, ?1829

Aspect

Plan and elevation of Truss for New Roof to Whitehall Chapel (see Model)

Scale

bar scale of 3/8 inch to 1 foot

Inscribed

as above, labelled: 9 of these Trusses / 2 Jack Trusses, A Principal Beams 18 by 12 and 14 by 9 fir / B Oak King Posts 9 by 9 / C Queen Posts 8 by 9 / D Principal Rafters 12 by 9 / E Collar Beams 12 by 9 / F Top Collar Beams 10 by 9 & 6 by 9 / G Struts 8 by 9 / H Struts 6 by 9 / I Common Rafters 6 by 3 / K Poll Plates 6 by 4 / L Joists on Top 6 by 3 / M Oak Corbels 13 by 6 / N Oak Plates 10 by 6 / O Oak Plates 9 by 6 / P Binding Joists 12 by 9 / Q Purloins 8 by 6, In Plan, Angle Ties 12 by 9 / Dragon Pieces 9 by 6 / Hip Rafters / Inch ¼ Boarding to flat / Inch Battens for Slates / Inch ½ bolts to King Posts BB / Inch ¼ bolts to Queen Posts CC / Inch bolts to feet of Principal Rafters / ¾ bolts to all the other Posts / Role 3 In diamtr / Inch ¼ deal Gutter boards and / Bearers 4 by 2½ / Gutter 4 feet wide, A, B (twice), C (twice), D (twice), E, F, G (6 times), H (twice), I (twice), K (4 times), L (3 times), M (4 times), N (twice), O (twice), P (4 times), Q (4 times), 2'0'' (twice), Copy (twice)

Medium and dimensions

Pen and sepia washes, pricked for transfer on wove paper (243 x 648)

Hand

Charles James Richardson (1809-71, pupil and assistant 1824- 1837)

Watermark

Smith & Allnutt 1827

Notes

The drawing is dated to 1829 by Walter L. Spiers (1848-1917, curator 1904-17). A note in the Soane Museum says that the corner of the drawing is dated '19th' but the rest of the corner, which is now missing, presumably had the full date and was seen by Spiers. The corner has since been further damaged so that now no part of the date is present on the sheet. The model referred to in the drawing is in the Museum, numbered M1216. There is also a model of a jack truss, numbered X230. There are three other models for the roof of the Banqueting House in the Soane Museum (M1215, M1217 and M1221). The first of these models shows a method of strengthening the trusses of the existing roof structure. Soane's original intention, no doubt, was to preserve Jones's roof but it was ultimately decided to build a new one as the existing structure was in a very dilapidated condition. The new roof was covered with slates with a lead flat on top.

Level

Drawing

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