Agriculture Reference
In-Depth Information
Repeat this process on the other side, moving the centre B with the pencil from D
to E, and the curve will be drawn; then cut the curved side to the line drawn, and
the camber slip will be completed. To prove the camber slip, lay it down and mark
all round it, then reverse it, and if the camber slip coincides with the lines drawn
by it, it will be correct. In using the camber slip always work from a centre line.
The emergence of the camber arch is contemporary with moving timber
frames back from the face of the brickwork of the window and door openings,
so removing the support the flat, or straight, arches gained from them. This is
also a time when one begins to encounter the use of rendered reveals and sof-
fits to window openings, painted white to reflect light.
As, following accepted fashion, window openings reduced in size with each
consecutive storey, especially on the terraced town houses, so generally did
the face heights of the flat/camber arches also, from 1¾ to 1½ to 1 brick high
respectively; and often the quality of execution diminished too. Ground-floor
arches were of best quality rubbers set finely gauged; first-floor arches of good
rubbers - not necessarily colour-matched - set with slightly thicker joints; and at
the top floor, utilising the lowest grade of rubber, as an axed arch.
In order to effect the appearance of gauged arch of red rubbers, espe-
cially when buff-coloured cutting bricks were used, the face would be 'colour
washed' [not limewashed] to the desired hue using ochres fixed with glue-size
and alum. A good example of this is the 'Red House', 60, Watling Street, Fenny
Stratford, Buckinghamshire, which dates from the early to mid-eighteenth cen-
tury, but was altered and enlarged in the late eighteenth century (Fig. 107).
Another practice to create the illusion of gauged work, where an axed arch
had instead been constructed was to 'tuck and pat' ['tuck pointing'] point its
face. This is an English term denoting a highly-skilled, refined method of point-
ing brickwork in which a pigmented base mortar joint, or 'stopping', is flushed-
in to the joints to match the natural colour of the bricks, or the applied colour
wash. Once sufficiently stiffened, it is then 'grooved' to directly receive a care-
fully placed 'ribbon' of lime putty:silver sand mortar trimmed precisely to size
to create the illusion of gauged brickwork. This technique could also be used
on remedial works to gauged brickwork as a means to create the desired aes-
thetics, as in this reference to repairs at Kensington Palace (Gaunt and Knight,
1804, 591):
William Whitehead Bricklayer
Repairing the piers to the entrance to the Palace Court next to the Town of
Kensington…241 ft. sup. Colouring and tuck pointing…at 7d.
………………………..£7.0.7. 29ft. 6. Gaged [gauged] arches repaired and
pointed with Roman cement coloured and drawn…at 1.4d. …£1.19.4. 223ft.
Red gaged brickwork to Piers with rais'd pannels cut out and made good with
