[102] Design for the iron posts and timbers for the roof at Holy Trinity Church, Marylebone, London, copied 18 January 1826

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Sir John Soane office drawings: the drawings of Sir John Soane and the office of Sir John Soane
- Churches and chapels
  - London: Holy Trinity Church, Marylebone, designs for construction and interiors, 1820-34 (120)
    - Design for iron posts and roof timbers for Holy Trinity Church, Marylebone, London, 1826 (1)

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Reference number

SM 54/4/18

Purpose

[102] Design for the iron posts and timbers for the roof at Holy Trinity Church, Marylebone, London, copied 18 January 1826

Aspect

Plan, elevation and section of the iron work supporting the roof. An iron post runs from the top of the Doric column and through the bressumer, and iron work curves to mirror the arch and is clamped to the bressumer above. Two oak braces emanate from the neck of the post and are attached to the bressumer for reinforcement. Iron rods are also shown connecting the bressumer and raising plates. The section shows rods also arranged horizontally to connect pieces of oak together. At the bottom is a plan of an iron post going through soft and hard wood of the roof, and it is connected by metal rods and plates

Scale

bar scale of 1½ inches to 10 feet

Inscribed

Iron Work supporting the Roof / Copy. / (to be returned) / No 18. / Plan of Cap / Circular Wrought Iron Bar / Stone Column / Bressumer supporting Gallery Front / Elevation of the Cast iron Standards / with the Oak Braces / Elevation of the Cast Iron Standards / Profile / Section through the Centre of Arch / Oak Brace / Bressumer / Bressumer / End of Gallery Roof Beam / Centre Roof Beam / Raising Plate / Raising Plate

Signed and dated

18 January 1826
Lincolns Inn Fields / Janry. 18th 1826

Medium and dimensions

Pencil, pen, coloured washes of blue, orange and yellow, and pricked for transfer on wove paper (753 x 542)

Hand

Soane Office, draughtsman
Soane Office Day Book for Wednesday 18 January 1826 records: Burchell, Mocatta, Richardson and Davis all as copying drawings for Marylebone Church

Watermark

SMITH&ALLNUTT / 1823

Notes

The use of iron pillars supports the timber for the roof, and also the arches forming the arcade at gallery level. Dean observed the use of iron in this situation at St Peter's Walworth, and is just as pertinent to Holy Trinity, Marylebone, as enabling the plaster covering to appear 'almost as thin as a paper chain'. Dean also noted this feature enabled Soane to make the arches as thin as the metal support would allow, and push the nave ceiling as high as it could go to maximise light.

Literature

Dean, 2006, p. 89

Level

Drawing

If you have any further information about this object, please contact us: drawings@soane.org.uk