Improvements in Ventilators and Chimneys.
Year: 1896

page_text: Date of Application, 7th Oct., 1896
Complete Specification Left, 7th July, 1897-Accepted, 11th Sept., 1897
IDIONAL DI BUITI
Improvements in Ventilators and Chimneys.
I, THOMAS SKERMAN 22 Tavistock Terrace Holloway Road, N. Tin and Zinc Worker,
do hereby declare the nature of this invention to be as follows:-
This invention relates to inprovements in ventilators and chimneys and consists in
the employment of one or more auxillary draught producers which may be of any
convenient form and which catch and direct the air in a downward or upward direction
as required for the purpose of aiding the draught in ventilators or chimneys; the
auxillary draught being conveyed through suitable channels. The chambers forming
the auxillary draught producers may have when desired, movable cowls. The
arrangement may be employed upon moving vehicles for the purposes of ventilation
or the like.
I, THOMAS SKERMAN 22 Tavistock Terrace Holloway Road London, N. Tin and Zine
Worker, 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 invention relates to improvements in ventilators and chimneys and consists in
the employment of one or more auxillary draught producers which may be of any
convenient form and which catch and direct the air in a downward or upward direction
as required, for the purpose of aiding the draught in ventilators or chimneys, the
auxillary draught being conveyed through suitable channels. The chambers forming the
auxillary draught producers may have, when desired, movable cowls. The arrange-
ment may be employed upon movable vehicles for purposes of ventilation or the
like.
I will now for purposes of illustration refer to the annexed drawings in which :-
Figure 1. is a side elevation of my invention applied to a building.
a is the chimney or shaft which is connected by the channels b to the draft
producers c. d is a movable cowl which is open as shewn at e for a certain distance
round its circumference and is supplied with a vane f which is so arranged as to cause
the cowl to be maintained in such a position that the currents of air and wind will
enter apertures in same, and owing to the closed back g will be deflected in a

page_text: downward direction, thus passing up the channels b to the main chimney or shaft a
and so tending to increase the upward draught of same. If desired the cowls may be
fixed and according to the direction of the wind will either cause an up or down
draught to take place in same, as in the event of the wind blowing upon the closed
part of the cowl a certain amount of air or gas will tend to be withdrawn from the
open side, thus producing an upward draught in the cowl. The vanes may be 80
arranged upon a movable cowl so as to cause an up or down draught according to the
part of the cowl exposed to the currents of air or wind. The channels b instead of
being carried up the chimney as shewn in the drawing may be caused to communicate
with a suitable part of a house or structure for purposes of ventilation either for the
withdrawal or entrance of air according to the direction in which the vane is placed
upon the movable cowl. In the case of moving vehicles it will be readily seen that a
very efficient means of ventilation is thus provided, as the cowl may be placed upon a
suitable part of the vehicle and will either cause the withdrawal of air from same or
cause a current of air to enter the vehicle.
Although I have described one way in which I carry out the object of my invention,
it will be readily understood that there are various modified arrangements which may
be employed without departing from the principle of my invention.
It will be seen that the draught producers will be of great service in drawing gases,
foul air or the like from buildings or other places when the cowl is so arranged as to
cause an up draught in same.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1. The combined construction and arrangement of the various parts substantially
as described and illustrated herein.
2. One or more draught producers which are in communication with suitable
channels, said draught producer consisting of a movable or fixed cowl having apertures
partly round the circumference of same so that according to the direction in which the
currents of air or wind strike the cowl an upward or downward draught will be
produced in same, this draught being used for ventilating and other purposes.
Dated this 7th day of July 1897.