Figs. 4 and 5 give plans of the ground floor and first story, and Figs.
1, 2, and 3 give vertical sections. The second story is arranged like
the first, and serves as a drier. As we have said, there is a double
series of chambers for carbonization, drying, and work generally. These
two series are arranged on each side of a central portion, which
contains the heating and ventilating apparatus and a stone stairway
giving access to the upper stories. The heating apparatus is a hot air
stove provided with a system of piping. The rags to be carbonized or the
wool to be dried are placed upon wire cloth frames.
The carbonization is effected in the following way: When the heating
apparatus has been fired up, and has been operating for about half an
hour, the apertures, i, are opened so as to let the air in, as are also
those, m, which allow the hot air to pass into the chambers. The hot air
then descends from the top of the chamber into the wool or rags, and,
becoming saturated and heavier, descends and makes its exit from the
chamber through an aperture, n, near the floor, whence it flows to the
central chimney. This latter, which is built of brick or stone, contains
in its center a second chimney (formed of cast or forged iron pipes)
that serves to carry off into the atmosphere the products of combustion
from the heating apparatus.
Pages:
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54