. The book of the garden. Gardening. 384 PLANT-HOUSES. made to go round the sides and bottom of the gutter. This strap, which is made of iron, is pierced at the upper end for the bolt to pass through. These gut- ters are placed between two upright columns a a, fig. 516, having a bracket cast on them at o o for the gutter to rest on, 6 feet from the top. The tops of these pillars are cored out to allow the double joints of the suspension-bars, 1 2 3 4, to be inserted, a bolt of the best iron or soft steel passing through the jaws of the cast- iron pillars and joints of the suspension- bars
. The book of the garden. Gardening. 384 PLANT-HOUSES. made to go round the sides and bottom of the gutter. This strap, which is made of iron, is pierced at the upper end for the bolt to pass through. These gut- ters are placed between two upright columns a a, fig. 516, having a bracket cast on them at o o for the gutter to rest on, 6 feet from the top. The tops of these pillars are cored out to allow the double joints of the suspension-bars, 1 2 3 4, to be inserted, a bolt of the best iron or soft steel passing through the jaws of the cast- iron pillars and joints of the suspension- bars. These bars are l|-inch diameter, of best iron, made with double joints on both ends, as shown in section of gutter, the bolt / passing through the strap d and the sides of the gutter, and also through the double joints of the suspen- sion-rods. The strap d is to support the weight, and to prevent the sides of the gutters from being torn out by the strain of the suspension-rods. This gutter may be made from 50 to 100 feet of span, and requires transverse bars of round iron crossing the gutter to keep it in a straight line. The upright pillars may be made of any pattern to suit the design of the house, and should be, for an 80 feet span, at least 8 inches diameter, and metal. Fig. 518 shows another mode of sus- pending the gutters—for upon them the whole of the ridge-roof rests. Fig. 519, section on A B, shows, upon an enlarged Fig. scale, a section of the gutter and its con- nection with the roof astragals a «, as well as an open passage, formed by a per- forated plate of iron or open grating, to prevent the snow from choking up the gutter, and leaving a clear passage for the melted snow-water passing off at b. In fig. 520, the plan of the roof, are seen the tension-rods connected with the gutter stt a a a, while others are placed diagonally, b b, from the upright columns, and secured to the apex of the ridges, their use being to tie the roof together, and prevent vib
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
