Designs for lantern dome, one dated 29 April 1799 (3)

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Sir John Soane office drawings: the drawings of Sir John Soane and the office of Sir John Soane
- Bank of England
  - Bank of England, City of London for the Governor and Company of the Bank of England, 1788-1834 (1352)
    - 1791-1801 Rebuilding of offices in the east wing and north-east extension (430)
      - Consols Transfer Office, 1797-1799 (75)

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Reference number

SM (23) 2/3b/1 (24) volume 74/74 (25) volume 74/75

Purpose

Designs for lantern dome, one dated 29 April 1799 (3)

Aspect

23 Plan for the [lantern] roof of the new Transfer Office and section of roof, showing radiating rafters 24 Two sections of the (Bailey) Dome [under the lantern] etc of Consols Transfer Office 25 (Bailey) Plan of the Lantern light - 3p^r Cent Consols Transfer Office and section of lantern, showing rectangular fenestration

Scale

(23, 25) bar scale (24) to scale

Inscribed

23 as above, D^o (eleven times), This Rafter on the Center of the Pier, x 6" 1. x, a key of A A A A This Circular Barr / to be so far extended from / the Center as to leave 12 / openings of 1^ft 9ⁱⁿeach which / Determine the Diam, 2" 6 24 as above, (Bailey) The Bank of England, some dimensions given 25 as above, settled July 28^th 1799 for to have this plan / with 12 figures in line of columns, (Bailey) The Bank of England

Signed and dated

(23) Bank 29^thApril 1799 (24) datable to 1799 (25) datable to July 1799

Hand

Soane office

Notes

Drawing 23 is a schematic plan of the lantern roof showing its circular structure with radiating iron rafters descending in two stages. The section shows it has a slightly pitched roof.
The sections of drawing 24 show the arches that pierce the pendentive dome, supporting the circular lantern above. The top section appears to be of the trunk arch and the bottom section of the groin arch. Coloured wash is used to highlight particular structural elements of the arches such as the stone springer and vaulting of common stock brick.
The inscription on drawing 25 refers to the decision to have twelve caryatids to support the perimeter of the lantern dome. These are sculpted female figures used as architectural supports instead of columns with entablature above. Pink wash is used to indicate the location of each caryatid around the oculus of the dome.

Level

Drawing

Digitisation of the Drawings Collection has been made possible through the generosity of the Leon Levy Foundation

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Sir John Soane's collection includes some 30,000 architectural, design and topographical drawings which is a very important resource for scholars worldwide. His was the first architect’s collection to attempt to preserve the best in design for the architectural profession in the future, and it did so by assembling as exemplars surviving drawings by great Renaissance masters and by the leading architects in Britain in the 17th and 18th centuries and his near contemporaries such as Sir William Chambers, Robert Adam and George Dance the Younger. These drawings sit side by side with 9,000 drawings in Soane’s own hand or those of the pupils in his office, covering his early work as a student, his time in Italy and the drawings produced in the course of his architectural practice from 1780 until the 1830s.

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