. The book of the garden. Gardening. Fig. 484. the handle of a lever placed in the centre of each compart- ment, which, work- ing in an iron socket, fixed in the back wall, throws up the back half of the roof, for the purpose of top ventilation. This is, however, better seen in fig. 485, where the spiral screw is shown at a, working in a cog-wheel, b, which gives. the required movement; and in fig. 486, the toothed quadrant a is shown, which regulates the amount of ven- tilation, as well as maintains it in its Fig. Please note that these images are extracted from scanned page images that
. The book of the garden. Gardening. Fig. 484. the handle of a lever placed in the centre of each compart- ment, which, work- ing in an iron socket, fixed in the back wall, throws up the back half of the roof, for the purpose of top ventilation. This is, however, better seen in fig. 485, where the spiral screw is shown at a, working in a cog-wheel, b, which gives. the required movement; and in fig. 486, the toothed quadrant a is shown, which regulates the amount of ven- tilation, as well as maintains it in its Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McIntosh, Charles, 1794-1864. Edinburgh and London, W. Blackwood
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
