Improvements in and connected with Chimney Cowls and Ventilators.
Year: 1896

page_text: Date of Application. 28th Nov., 1890
Complete Specification Left, 28th Aug., 1897-Accepted, 23rd Oct., 1897
COLII NYOV., TOD
Complete Specification Left, 28th Aug., 1897-Accepted, 23rd Oct., 1897
PROVISIONAL SPECIFICATION.
Improvements in and connected with Chimney Cowls and
Ventilators.
I, THOMAS JAMIESON, of 105 Saltmarket, Glasgow, Slater, do hereby declare the
nature of this invention to be as follows;-
This invention relates to an apparatus for ventilating ships and buildings said
apparatus being also applicable for use as a chimney cowl. A part of the apparatus
is adapted for curing smoky chimneys.
In carrying out my invention for a ventilator I construct the apparatus with
a central shaft outside of which two, three, or other number, of concentric rings
are placed at a short distance from each other and rising like steps. The rings are
held in proper position by means of vertical supports. Fitted on top of the outer
ring is a truncated cone, or more than one truncated cone may be super-posed
over the ring. The whole is capped by an ornamental cone, or a cap, or such like
The rims of the truncated cones are flanged or bent vertically or are provided with
vertical rims. A deflecting cone or its equivalent may be located in the centre of
the ventilator.
The ventilator may be made of any suitable shape and design.
In the case of a chimney cowl the construction may be much the same but the
ornamental top and also if necessary the truncated cones may be dispensed with.
If desired the concentric ring arrangement may be used by itself and the trun-
cated cone arrangement by itself as found most suitable.
To assist the updraught of chimneys and to prevent back smoke I also use a
backing plate and smoke guide which is fitted at the back of the grate or range.
This backing plate confines the smoke to a channel, groove or passage in it and
delivers it (the smoke) direct to the chimney without the possibility of back smoke
gathering at the back of the grate and oozing round the edges of the grate into the
room.
Dated this 27th day of November 1900
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION
Improvements in and connected with Chimney Cowls and
Ventilators.
I, THOMAS JAMIESON of 105 Saltmarket, Glasgow, Slater, 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 an apparatus for ventilating ships and buildings said
apparatus being also applicable for use as a chimney cowl.

page_text: And in order that my said invention may be properly understood I have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a vertical section of one construction of the cowl or ventilator.
Fig. 2 is a vertical section and Fig. 3 a plan of another construction of the cowl
or ventilator.
Fig. 4 is a vertical section and Fig. 5 a plan of a third construction of the cowl
or ventilator.
Referring to the drawings:-
In carrying out my invention for a ventilator, as shown at Fig. 1, I construct the
apparatus with a central shaft a outside of which two, three, or other number of
concentric rings b are placed at a short distance from each other and rising like
steps. The rings are held in proper position by means of vertical supports c.
Fitted on top of the upper and outer ring b is a truncated cone d; or more than
one truncated cone may be superposed over the ring as shown at d. The whole
is capped by an ornamental cone, or a cap, or such like e. The rims of the truncated
cones are flanged or bent vertically or are provided with vertical rims f. A deflect-
ing inverted cone g is located in the centre of the ventilator as shown. This cone
has a deep vertical rim or straight part g¹. h, h¹, are supports.
In the case of a chimney cowl, as shown at Figs. 2 and 3, the construction
may be much the same but the ornamental top e and also if necessary the truncated
cones d, d, may be dispensed with.
The top part d, d, e, of the ventilator Fig. 1 is fitted in place in the upper ring b
as shown and can be removed when necessary.
The deflecting cone 9 may either be made removable, its supports merely
resting in the brackets 2, or it may be made so as to turn up out of the way when
desired, as shown at Figs. 4 and 5, where the two supports h¹ rest upon inwardly
projecting brackets h3 secured to the ring b whilst the third support h is hinged
to the side of the ring b.
In Figs. 4 and 5 the single ring b is secured to the shaft by radial supports c¹.
The ring can be made with an ornamental crown i at top.
An ornamental crown i is shown as fitted on the cowl Figs. 2 and 3.
It will be seen that when the parts d, d, e, are lifted off the upper ring b
Fig. 1 the remainder of the cowl or ventilator is the same as that at Figs. 2 and
3 with the exception of the crown i.
The apparatuses shown on the drawings can be used as desired either as cowls or
ventilators.
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
consider novel and desire to claim is:-
1. The combination of the shaft, concentric rings 6 secured to the shaft, and
the deflecting cone g, gl, arranged above the outlet of the shaft, substantially as
herein before described with reference to the drawings annexed.
2. The combination of the shaft, the concentric rings 6 secured to the shaft,
the deflecting cone g, g¹, and one or more truncated cones d, substantially as herein-
before described with reference to the drawings annexed.
Dated this 26th day of August 1897.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.