Improvements in Means for Removing Steam and Vapours from Buildings, and for Promoting Ventilation, applicable also for the Prevention of Down-draughts in Chimnies.
Year: 1897

page_text: Date of Application, 9th Mar., 1897-4ccepted, 17th Apr., 1897
Improvements in Means for Removing Steam and Vapours from
Buildings, and for Promoting Ventilation, applicable also for
the Prevention of Down-draughts in Chimnies.
I JOSHUA WILLIAM TAYLOR, of 102 Bury New Road, Haulgh, Bolton, in the
County of Lancaster, Builder and Timber Merchant, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement and accompanying
drawings:
:-
The chief purpose of my present invention is to provide means which will readily
and efficiently remove steam and vapours from buildings and sheds such for example
as stabies, houses, steaming rooms and the like. The invention is also adaptable
for the promotion of ventilation and the prevention of down-draughts in chimnies.
In order that my said invention may be fully understood and the system mode
or manner in or under which the same is or may be used or carried into practical
effect, will now describe the same fully and with reference to the annexed sheet
of drawings.
Fig. 1 is a vertical section of the arrangement I use to carry my invention into
effect. Above the opening a in the ridge of the roof 6 I construct a circular,
square, polygonal or other suitably shaped casing c which is made of sheet metal
or other suitable material, standing upon a base 61 raised from the roof. The
casing c is connected to the base in as air tight a manner as possible so as to prevent
the entrance of the outer air at the foot of the casing.
To make the base of the casing still more secure against the entrance of air
I might board or cover the roof b with any suitable material. The top of the
casing c is closed by a roof or cover d which sits loosely upon the casing so as to be
easily removable when desired.
The cover has a hole at the top to allow of the escape of vapours to the outer
air. Within this casing c I arrange a conical body e consisting of thin sheet metal
plate coiled in a spiral form so as to form the cone, the respective coils being
arranged louvre fashion and separated by a space, the whole terminating in a conical
cap or apex as shown. To stiffen the said spiral cone and preserve the spaces
between the coils 1 might insert distance pieces or props fat intervals as
shown.
The said spiral cone sits upon or is secured to a bottom gutter g a portion of
which appears in section in Fig. 2. The gutter g is intended to receive the water
of condensation trickling from the cone e, and to lead the water from the gutter
I provide an outflow pipe h, the pipe h being water sealed to prevent the entrance
of air. The cone and gutter sit upon a ring i of angle iron or of other suitable
section attached to the foot of the casing c. The interior of the casing c constitutes
a spacious condensing chamber to condense steam and condensible vapours passing
through the cone e.
The mode of operation is as follows.
The only communication of the interior of the casing with the interior of the
building, being through the spiral louvre openings of the cone e, an upward air
enrrent is created as indinated ht

page_text: the building through the spiral louvre cone e into the interior of the casing e and
thence out through the opening in the movable cover d.
The air in the casing cis usually of higher temperature than the outer atmosphere,
although lower than the temperature of the air in the interior of the building.
Thus the contents of the casing tend to rise and assist the outflow of air and
vapours from the building. The casing being practically air-tight except at the
top, there are no influences to destroy or divert this upward current. The steam
and vapours are thus carried up through the cone e and are condensed wholly
or partially in the condensing chamber formed by the interior of the casing.
The moisture created by the said condensation settles upon the cone e and runs down
the same into the gutter g at the foot of the cone. From the gutter the said
moisture runs away through the scaled escape pipe h.
The overlapping of the respective louvres of the spirally coiled cone prevent any
of the moisture from falling back into the building.
To control the up drauglit, I might place a valve or damper (indicated in dotted
lines and marked in the drawing) or more than one such valve or damper in
the throat a of the uptake, which valve or damper could be opened and closed by a
cord or attachment from beneath. By making the cover d capable of being
readily opened or removed, instant access can be had to the interior of the
casing and to the cone and connected parts for cleansing and other purposes.
The cone is most readily and cheaply formed from a spirally coiled strip of
plate as indicated, but it might also be formed from a series of superimposed
gradually diminishing conical rings supported apart on slips or bearers as
indicated in Fig. 3, the necessary louvre spaces heing left between the respective
rings, so as to allow of the passage of the steam or vapours through the cone.
Instead of being round as described the cone e might be polygonal.
Another convenient mode of arranging the gutter and foot of the cone is shown
in the detached sectional view Fig. 4. Here the gutter g which might be of zinc
and of the sectional form shown is rivetted to the casing c.
The foot of the cone e is furnished with a sufficient number of supports / which
rest on the ledge of the gutter g, the foot of the cone projecting past the ledge a
little into the gutter.
Although primarily designed and hereinbefore described as a means for removing
steam and vapours from buildings, the indicated invention might be used as a means
for ventilation. On a reduced scale it might also be fixed as a ventilator or
chimney cowl for improving the draught and preventing smoking, in which case it
might wholly or partially be cast in fireclay or metal.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. The improved means for removing steam and vapours from buildings, for
promoting ventilation and for use in conjunction with chimnies, substantially as
described and as shown in the drawings.
2. As means for the indicated purposes, the casing or condensing chamber c
made air-tight or practically air-tight, except at the efflux opening, in combination
with the louvred cone e fitted with gutter and drain pipe, substantially as described
and shown.
3. In apparatus of the indicated nature the casing or condensing chamber c in
combination with a lid or cover capable of being readily opened or removed, for
the purposes and substantially as described and shown.
4. In combination with the indicated apparatus a louvred cope e formed from
spirally coiled sheet metal, or from successively superimposed diminishing conical
rings, or cast or otherwise formed from metal or other material substantially as
described and as shown.
5. In combination and as means for the indicated purposes, the casing c, the

page_text: movable cover d, the louvred cone e, and the gutter g with drain pipe h, the whole
mounted over an aperture communicating with an interior substantially as described
and shown.
Dated this 8th day of March 1897.
For the Applicant,
E. K. DUTTON & Co.,
5 John Dalton Street, Manchester, Chartered Patent Agents.