Improvements in or connected with Chimney Cowls, said Improve- ments being also applicable to Ventilators and the like.
Year: 1896

page_text: Date of Application, 10th Feb., 1896
Complete Specification Left. 6th Mar., 1896-Accepted, 11th Apr., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Chimney Cowls, said Improve-
ments being also applicable to Ventilators and the like.
I, CHARLES HENRY UPRIGHT, of 70, Shrubbery Road, West Green, Tottenham,
Mechanic, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in or connected with chimney cowls, said
improvements being also applicable to ventilators and the like, the object being to
provide a simple attachment which will prevent down draught and in the case of
chimneys will prevent them smoking, at the same time allowing the broom to be
passed completely through and out of the top of the said chimney for cleaning
purposes.
My improved device can be readily attached to chimneys or ventilators and owing
to its simplicity of construction it is not liable to get out of order, while the bearing
surfaces employed in connection with it are so small that lubrication is hardly
necessary.
I wish it to be understood that the device or attachment hereinafter described is
equally applicable to chimney cowls or ventilators, and as it will only be necessary
to describe it in connection with one the following description will refer more
particularly to its application to chimney cowls.
In carrying my invention into practical effect, I provide a suitably shaped hood
or cover of slightly hollow form and which may be stamped out of sheet metal or
other suitable material and formed or furnished upon each side with a counter-
balancing arm or projection.
This hood or cover is hung or pivoted at the top of a short length of metal
tubing, or a short hollow body may be formed of sheet zinc or other suitable
material, said body or tube being designed to be slipped over the top of the
chimney, the bearings consisting of a small projecting pin, upon each side of the
aforesaid body or tube which pass through a hole or perforation in each side of
the hood or cover, the width of the bearing surface being slightly increased by
soldering to each side of the cover or hood a small metal block through which
the hole or perforation also passes, or in some cases in order that the bearings
may be protected from rain and damp the holes or perforations formed in the
sides of the cover or hood may only extend for a certain distance into the small
metal block and not pass completely through same, the sides of the hood or cover
in this case being passed over and sprung on to the bearing pins.
The hood when placed on its bearings is normally perfectly level and at right
angles to the top of the supporting body or tube, being retained in this position
by the aforesaid balancing arms or extensions, while to each arm or extension is
soldered or secured in any suitable manner a suitably shaped plate projecting
from same at right angles, said plates being designed to afford a sufficient bearing
surface for the wind. When in use the wind striking against the aforesaid plates
carried by the balancing arms or extensions, tilts the hood or cover over towards
the side of the chimney in the opposite direction to that in which the wind is
blowing so as to cover the chimney at that side and protect it from the wind, thus
preventing a down draught and allowing the smoke to freely escape.
Upon each side of the chimney and at right angles to the bearings I provide a
small projecting arm for the purpose of limiting the play or tilt of the cover or
hood, said arms being furnished at the ends with a washer or the like of rubber
leather or other suitable material for the purpose of deadening the sound when the
cover or hood strikes against or is stopped by the said arms.

page_text: My improved device when applied to either chimney cowls or ventilators may be
painted or enamelled in any suitable manner according to requirements and any
suitable and well known means may be employed for securing the body to the
chimney, ventilator or the like.
Dated this 10th day of February 1896.
F. G. CASSELL
(Of Cassell & Co.),
22, Glasshouse Street, Regent Street, London, W.,
Agent for the Applicant.
mprovements in or connected with Chimney Cowls, said Improve-
ments being also applicable to Ventilators and the like.
1, CHARLES HENRY UPRIGHT of 70, Shrubbery Road, West Green, Tottenham,
Mechanic, 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 :-
My invention relates to improvements in or connected with chimney cowls, said
improvements being also applicable to ventilators and the like, the object being to
provide a simple attachment which will prevent down draught, and in the case of
chimneys will prevent smoking, at the same time allowing the broom to be passed
completely through and out of the top of the said chimney for cleaning purposes.
My improved device can be readily attached to chimneys or ventilators and owing
to its simplicity of construction it is not liable to get out of order, while the bearing
surfaces employed in connection with it are so small that lubrication is hardly
necessary.
I wish it to be understood that the device or attachment hereinafter described is
equally applicable to chimney cowls or ventilators, and as it will only be necessary
to describe it in connection with one, the following description will refer more
particularly to its application to chimney cowls.
In carrying my invention into practical effect, I provide a suitably shaped hood
or cover of slightly hollow form and which may be stamped out of sheet metal or
other suitable material and formed or furnished upon each side with a counter-
balancing arm or projection.
This hood or cover is hung or pivoted at the top of a short length of metal tubing
or a short hollow body may be formed of sheet zinc or other suitable material,
said body or tube being designed to be slipped over the top of the chimney, the
bearings consisting of a small projecting pin upon each side of the aforesaid body
or tube which pass through a hole or perforation in each side of the hood or cover,
the width of the bearing surface being slightly increased by soldering to each side
of the cover or hood a small metal block through which the hole or perforation also
passes, or in some cases in order that the bearings may be protected from rain and
damp the holes or perforations formed in the sides of the cover or hood may only
extend for a certain distance into the small metal block and not pass completely
through same, the sides of the hood or cover in this case being passed over and
sprung on to the bearing pins.
The hood when placed on its bearings is normally perfectly level and at right
angles to the top of the supporting body or tube, being retained in this position
by the aforesaid balancing arms or extensions, while to each arm or extension is
soldered or secured in any suitable manner a suitably shaped plate projecting from
same at right angles, said plates being designed to afford a sufficient bearing
surface for the wind. When in use the wind striking against the aforesaid plates
carried by the balancing arms or extensions, tilts the hood or cover over towards

page_text: the side of the chimney in the opposite direction to that in which the wind is
blowing so as to cover the chimney at that side and protect it from the wind, thus
preventing a down draught and allowing the smoke to freely escape.
Upon each side of the chimney and at right angles to the bearings I provide a
small projecting arm for the purpose of limiting the play or tilt of the cover or
hood, said arms being furnished at the ends with a washer or the like of rubber,
leather or other suitable material for the purpose of deadening the sound when the
cover or hood strikes against or is stopped by the said arms.
My improved device when applied to either chimney cowls or ventilators may be
painted or enamelled in any suitable manner according to requirements and any
suitable and well known means may be employed for securing the body to the
chimney, ventilator or the like.
In order that my invention may be more fully understood, I will now proceed
to describe same with reference to the accompanying sheet of drawings in which
Fig. 1 is a side elevation of my improved cowl with the second position of the
hood or cover shown in dotted lines and
Fig. 2 is a view taken at right angles to Fig. 1.
According to my invention the hood or cover his hung upon pins or pivots p, p,
at the top of the body b designed to pass over the top of the chimney, the said hood
or cover being furnished upon each side with a counter-balancing arm a, a' carrying
a plate c, c', either soldered to sanie or secured by means of rivets. The hood or
cover h is furnished upon each side with a hole or perforation through which the
pins p, pl pass while the width of bearing surface for same is increased by means of
discs m, mi secured one upon each side to the cover or hood h for this purpose.
The body carries upon each side an arm d, d' each furnished at its extremity with
a washer of leather, rubber or other suitable material w, w' for limiting the play of
the hood or cover.
The dotted lines indicate the position of the hood or cover when acted upon by
the wind blowing in the direction indicated at x, x, which then covers or protects
the chimney at that side as shown.
The edges of the hood or cover may be beaded or furnished with a stiffening
wire if required for the purpose of strengthening or adding to the appearance of the
said hood, while washers, small nuts or the like such as f, f may be employed upon
the ends of the pins p, p' for the purpose of retaining the hood h in position and
preventing it from slipping about.
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 improvements in cowls or ventilators consisting essentially of a cover or
hood such as pivoted above same or to the top of a short body such as b designed
to pass over the chimney or ventilator, said cover or hood being furnished with
counter-balancing arms or extensions a, a, and having wind vanes or plates c, c¹, the
whole arranged, constructed and operating, substantially as herein described and
shown, and for the purpose specified.
2. In combination with a device such as above claimed the arms d, d, furnished
with washers or discs w, w' whereby the action of the hood or cover is limited,
substantially as herein described and shown in the accompanying drawings.
3. The improvements in or connected with chimney cowls or ventilators substan-
tially as herein described and shown and for the purposes specified.
Dated this 5th day of March 1896.
F. G. CASSELL
(Of Cassell & Co.),
22, Glasshouse Street, Regent Street, London, W.,
Agent for the Applicant.