Year: 1886

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to means for removing and neutralizing foul gases or
vapours from rooms, sewers and cesspools.
The said invention consists of a double chambered ventilator which is heated by
a stove or otherwise to create a draught, whereby the foul gasos or vapours are
drawn into the upper portion of one chamber and then carried down through it
and discharged into the other chamber. Moreover, by reason of the heat to which
they are subjected, the decomposition of the said gases or vapours takes place, and
thereby the poisonous effects of such gases or vapours are neutralized.
In the accompanying drawing
Figure 1 is a sectional elevation of the improved ventilator adapted to be
employed in connection with a cooking-stove.
Figure 2 shows a modification adapted to a chimney.
Figure 3 is a top view of the deflector removed from the ventilator at Figure 1.
Figure 4 is a section on the line & Figure 1.
Figure 5 is a section on the line y Figure 1.
Figure 6 is a view of a detail of the apparatus shown in Figure 1.
Figure 7 is a face view of the lower part of the apparatus shown in Figure 2.
Figure 8 is a section on the line a Figure 2.
Figure 9 is a face view of an air-ventilator arranged in a window-sash.
Figure 10 is a transverse section of the same on the line w, ḍrawn to an enlarged
scalo
The ventilator adapted for use with stoves is shown in Figure 1, and consists of
a length of straight pipe A having inclined pipes E F secured to its ends, which
pipes form a chamber k. A plate B is secured to the said pipes to form a chamber g
at the side of the same.

page_text: An air-inlet i is formed in the upper portion of the plate B to admit vapours and
gases to the chamber g and an exit opening his formed in the pipe A to allow the
gases to pass into the chamber k, out of which they pass after they have been
decomposed.
A pipe G connects the ventilator with a stove, the top plate of which is indicated
at M, and a pipe H leads to a chimney.
The chambers g, k and openings i, h, are used in the modification of my invention
shown in Figure 2, where the ventilator is arranged in connection with a
chimney J. The stove-pipe, in this case, enters through an opening T in the
plate B, and the heated air passes through the chamber k and enters the chimney
through the aperture j.
The ventilator, when used without a stove or
chamber G¹ in which a lamp P is placed to give
draught of air. A door Q affords access thereto.
will be removed and the opening T closed.
furnace, is provided with a lower
the heat to produce a current or
In this case, the pipe G Figure 2
When the device is to be used to remove the gas from sewers or cesspools, it
can be suitably enlarged and a fire-box or furnace may be substituted for the
chamber G¹. A pipe also extends from the sewer to the opening i to conduct
the gases.
When the ventilator is used with a cooking stove, I find it advantageous to use
a hood or housing C to direct the gases or vapours to the opening i, Figure 1.
In close rooms, an exterior ventilator is required to keep up a circulation of air.
For this purpose, I employ the apparatus shown in Figures 9 and 10. It consists
of an inner plate arranged before a series of perforations e in the window-sash,
a perforated stationary plate C outside the sash K, and a sliding plate a which has
holes b through it corresponding to the holes in the plate C and sash K, so that the
said holes may be more or less closed to regulate the draught; wire gauze may bo
placed over the holes in the plate c to exclude dust.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondents I declare that what I claim is :-
"
The improved ventilating apparatus operated by the heat of a stove, lamp or
furnace and comprising the two chambers g, k, the chamber g being provided with
an inlet opening i in its upper portion, and with the port h communicating with
the chamber k, with or without the ventilator f, a, e, as, and for the purposes,
hereinbefore specified.