The turn-ups
a, a, b, b, should not be less than 1-1/2 inches wide. Allow half an inch
at each end of b b for the turnover c. Turn a a up first, then b b, and
finally bend c c round the back of a a, to which they are soldered. A drop
of solder will be needed in each corner to make it water-tight. When
turning up a side use a piece of square-cornered metal or wood as mould,
and make the angles as clean as possible, especially near the joints.
[Illustration: FIG. 12.--Showing how the tray for sink is marked out.]
A drain hole, an inch or so in diameter, is cut in the centre of the tray.
To prevent the hands being injured by the tray, the front should be covered
by a 1/2-inch strip of zinc doubled lengthwise, or be made a bit deeper
than 1-1/2 inches in the first instance and turned over on itself.
Before the tray is put in position the basin hole must be filled in, except
for an opening to take the waste pipe. The plug is pad-sawed out of wood of
the same thickness as the top, to which it is attached by crossbars on the
under side. The whole of the woodwork, or at least those parts which are
most likely to get wetted, should then be given a coat or two of paint.
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