A New or Improved Chimney Cowl.
Year: 1894

page_text: Date of Application, 13th July, 1894-Accepted, 18th Aug., 1894
A New or Improved Chimney Cowl.
I EDWIN WILLIAM LOVEGROVE of Friars Cottage, Bangor, North Wales,
Schoolmaster, 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 improved chimney cowl, which will effectually
prevent any down draught, and will ensure the proper passage of the smoke.
The cowl is movably fitted on the end of a fixed pipe, a vertical pivot with cup
bearing being employed to permit the cowl to turn freely.
The cowl is formed with a head or horizontal arm, having a vertical blade fixed
to it which ensures its being kept pointed away from the wind, in whatever part it
may be blowing. This head is divided for part of its length into two passages, one
leading from the chimney, the other opening to the atmosphere. Both passages
unite towards the end of the head. The open end of the air passage is pointed
towards the wind so that a current of air will pass through the cowl, when any
wind is blowing, and will draw up the smoke from the chimney.
In order that the invention may be more clearly understood, reference is had to
the accompanying sheet of drawings in which
Fig. 1 is a vertical section and Fig. 2 an end elevation of the complete cowl.
The cowl is formed with the tubular or cylindrical portion A and the horizontal
head B which is preferably rectangular in cross section, the tubular part com-
mencing at the lower end, as shown in Fig. 2. The cowl is fitted to the fixed
pipe C and is carried by a pivot pin a fixed by means of the cross bars a¹ and
turning in a cup bearing c in the pipe C. The pivot also passes through a cross
bar c' in the fixed pipe, which serves to support the pivot and keep it in a vertical
position.
The cowl can thus turn freely in any direction around the fixed tube.
It is turned by means of the blade or vane D on the end of the head B, which
keeps it in the proper direction according to the quarter from which the wind is
blowing.
The head is divided into two passages b and b for part of its length the end b' of
the passage b widening out and opening to the atmosphere. The vane ensures that
this end is always turned to the wind, so that the air will pass through the
passage and out at the other end. The passage 6¹ forms a continuation of the
chimney and the smoke will be drawn up owing to the suction caused by the current
of air flowing through the head from b.
There will thus be no danger of any down draught, as the wind will only serve
to increase the up draught.
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) A chimney cowl turning on a pivot at the end of a fixed pipe, having a head
with vane, divided into two passages one forming a continuation of the chimney,
and the other open at both ends, substantially as and for the purposes specified.
(2) In a chimney cowl fitted to a fixed pipe the combination with a pivot and
cup bearing and a vane, of a head, divided into two passages at one end, one leading
from the chimney and the other open to the air with enlarged end directed against
the wind, substantially as and for the purposes specified.

page_text: (3) The improved chimney cowl constructed and operating substantially in the
manner described and shown in the accompanying drawings and for the purposes
specified.
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Dated this 13th day of July 1894.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.