|Client:||Ipswich Borough Council|
|Architect:||Margaret and Richard Davies Associates|
|Contractor:||Collins and Curtis Masonry Ltd.|
|Material:||W.T. Lamb & Sons replacement Architectural Terracotta to match existing Royal Doulton material|
In the spring of 2004 Lambs were asked to consider the possibility of supplying terracotta details to repair the finials and copings at Ipswich Town Hall. The present Town hall was built in 1867/8 to a design by Bellway and Hardy Architects and described by Nicholas Pevsner as "Italianate, with a French pavilion roof over the raised centre, and quite undistinguished." The current web page Visit-Ipswich is more generous, it says "A building of grand Victorian proportions," and points out that it was built out of Bath stone, red sandstone, Portland stone and that it has statues, representing Commerce, Justice, Law & Learning and agriculture, sitting high above the Civic balcony.
The original urns and pineapple finials were produced in Lambeth by Doulton & Co, who later became Royal Doulton, and it must have been a very early example of Henry Doulton's expansion into decorative wares. These units can be attributed to Doulton because of the makers stamp found in the base of some of the units.
The failure of the original Royal Doulton terracotta pieces was due to the common problem of rusting iron supports. Multi piece decorative pieces and those with narrow necks were often given additional support by the insertion of iron rods with the space around the rod poorly filled with weak concrete and rubble. The expansion of the rusting metal split the terracotta causing partial or complete failure. Lambs were given the order and the task of reproducing the failed terracotta and the first activity was to visit site to take composite rubber moulds, as can be seen here being taken by the Workshop Manager from the Portland Stone details. With the addition of numerous photographs and detailed measurements the rubber casts are taken back to the workshop for the next stage of production.
Fired clay products will shrink at two stages during manufacture and therefore moulds and drawings have to be scaled up to allow for the loss of size during drying and firing. Two types of clay, a buff and a red were used in the production of these units, thus adding to the complicated shrinkage calculation. The fine detail of the pineapples and leafy bowl moulds were first filled with slipped red/buff clay, to maintain the fine detail, and then polished to a finish. Once the clay had dried and the moulds were removed the units were placed in the dryer where they would sit for several months to carefully dry and avoid shrinkage cracks. The plaster moulds also have to be dried before being reused.
Once the units are dry enough they are carefully loaded onto the kiln trolley and rolled into the specially manufactured gas fired kiln. This kiln has a 6 day cycle taking the temperature over 1000degrees centigrade and down again within 6 days until the moment of truth when the kiln doors are opened. Once drawn from the kiln the units are carefully checked before packing ready for dispatch to site.
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