Self Acting Ventilator for the Purpose of Extracting Steam, Hot Air, or Smoke from Buildings and Workshops.
Year: 1887

page_text: Date of Application, 15th Mar., 1887
Complete Left, 1st Dec., 1887
Complete Accepted, 6th Jan., 1888
Self Acting Ventilator for the Purpose of Extracting Steam, Hot Air,
or Smoke from Buildings and Workshops.
JOHN TAYLOR of 151 Lower Chesham, Bury, in the County of Lancaster, Joiner
& Builder, do hereby declare the nature of this invention to be as follows:-
This Ventilator is designed for the purpose of extracting Steam, Hot Air, or Smoke
from Buildings and Workshops and can be constructed of Wood, burnt clay or pot, Glass
or Metals of any kind and is formed without Louvres or Covers of any description at
the top, but inside of which is inserted a contrivance for the purpose of creating a
strong up draught, and at the same time prevents rain, snow or dirt from descending
into the Buildings.
The trunk of the Ventilator can be made square or rectangular in section, and is
intended to pass through the roof in the ordinary way, and the way in which the
above named contrivance is formed is as follows.
About half way between the roof and the extreme top of the Ventilator, two sides
of the trunk which are opposite each other are projected outwards in an angular or
circular form in order that the cross section at this part may be three times the area
of that of any other part, above or below the two points where the projection begins.
In the middle of the trunk at the projected part is inserted an angular or circular
trough parallel to the two projecting sides of the trunk, any rain or condensed steam
which may drop into this trough is allowed to pass through one or both of the
perpendicular sides of the trunk onto the slates of the roof, this trough being
inserted in the middle of the projecting part of the trunk leaves the outlet on each
side equal in area to the section of trunk above or below the points of projection,
when the steam rises to the underside of the trough the two outlets begin to contend
against each other for an equal share of work and the result of this contrivance is a
strong draught which carries away steam or hot air very rapidly.
JOHN TAYLOR,
Applicant.

page_text: Self Acting Ventilator for the Purpose of Extracting Steam, Hot Air,
or Smoke from Buildings and Workshops.
JOHN TAYLOR Joiner and Builder 151 Lower Cheshamn Bury, (Lanc.) 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 :—
This ventilator is designed for the purpose of extracting steam, hot air, or smoke
from Buildings and Workshops, and can be constructed of Wood, Burnt clay, pot,
glass, or metals of any kind, and is formed without louvres, or covers of any description
at the top, but inside of which is inserted a contrivance for the purpose of creating a
strong up draught, and at the same time prevents rain, snow, or dirt from decending
into the Building.
The trunk of the ventilator can be made circular, square, or rectangular and to any
size, and is intended to pass through the roof in the ordinary way, and the way in
which the above named contrivance is formed is as follows:-
About half way between the roof and the extreme top of the trunk, the two sides of
the trunk which are opposite each other, are projected outwards in an angular or
circular form, in order that the cross section at this part may be about three times the
area of that of the trunk at the top.
In the middle of the trunk at the projected part is inserted an angular or circular
trough A.
Any rain which may enter the top of the trunk will drop into the trough and is
allowed to pass through the sides of the trunk on to the slates of the roof as at
hole B.
This trough being inserted in the middle of the projecting part of the trunk leaves
two outlets, one on each side of the trough, which together are about equal in area to
the outlet at the top of the trunk.
When the steam rises to the underside of the trough at point C the two outlets then
begin to contend against each other for an equal share of work, and the result of this
contrivance is a strong up draught, which carries away steam, or hot air very
rapidly.
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 :-
1st. The projection or projections of trunk as specified.
2nd. The Insertion of trough for the purpose of preventing rain, snow or dirt
decending into the building also for the purpose of creating a draught as described in
specification.