Dear Folks,
Brick clamps were also very common during the colonial period in
Australia.The brickwork of farm houses built of clamp-burned bricks usually
display a great variation of colour and size, depending on the clay and the
success of firing the clamp. Of course, for the higher status house, the
bricks were well sorted as to quality, colour and size and used for
exterior and interior purposes as suited. The softer underfired bricks for
interior walls, well fired for exterior walls and the clinkers or flare
headers (and stretchers) sometimes used for decorative purposes.
Some illustrations:
*Spons Dictionary of Engineering. London, 1874, figs 1342 to 1346. (English
clamps "as experimented wit" in India since the 1820s).
*Bourry, E. Treatise on Ceramic Industries. London, 1911, fig 210. (I'd say
the figure is taken from an earlier publication but comes close to what I
have seen in the field and from written descriptions).
*There is a photograph of the side elevation of one in a publication by a
certain Winser (fig 8) but I can't just now find the book title.
The following are useful for written descriptions:
Knight, E.H. 'American Mechanical Dictionary', 1876, pp370/371.
Hudson, K. 'Industrial Archaeology'. London, 1976, p143
Tomlinson 'Cyclopaedia of Useful Arts', London ca1852/1853, p189.
There are also references in several of the British mid C19th builders'
periodicals.
Best Wishes,
Robert
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