Year: 1888

page_text: Date of Application, 23rd Mar., 1888
Complete Specification Left, 12th Oct., 1888
Complete Specification Accepted. 16th Nov., 1888
We, JOHN WILLIAM SIZER and ARTHUR LODGE SIZER both of 34 Kildon Road,
London, S.W., Stone Masons and Carvers, do hereby declare the nature of this
invention to be as follows:-
--
Our invention relates to appliances employed for inducing an up draught in Chimneys
and for ventilating purposes generally.
Numerous devices for inducing an effective up draught have been already introduced,
but many of these possess the great drawback of being very costly. Now, our
invention has for its object the production of an apparatus for the purposes aforesaid
which while being thoroughly efficient in working may be made at a trifling cost.
In accordance with our invention we proceed as follows; taking for instance the
case of what is known as a lobster back cowl or ventilator, the top of which rotates
upon a rod or spindle fixed within the interior of the shaft, we introduce into an
aperture formed in the back of the cowl or hoop, a short nozzle extending laterally to
within about the centre of the head, and in front of the inner end of said nozzle we
dispose at right angles, or other suitable angle relatively to the nozzle aforesaid a
spindle carrying a series of vanes, arms or wings of any suitable shape, but preferably
such as will ensure that the least possible obstruction shall be offered to the free
passage of the smoke, whilst the external air entering through the nozzle impinges
upon and against the series of arms or wings mounted upon the spindle aforesaid in
the manner of a fan blower which is thus caused to rotate and an induced up draught
is created.
The device according to our invention will also be found of especial utility as a
ventilator inasmuch as however light the wind may be, the rotating fan aforesaid being
perfectly balanced, would draw up the shaft all heated and vitiated air.
Dated this Twenty third day of Manch 1080
JAMES STEVENSON,
Gray's Inn Chambers,
20, High Holborn, W.C.,
Agent for Applicants.

page_text: We JOHN WILLIAM SIZER and ARTHUR LODGE SIZER, both of 34 Kildon Road,
London, S.W. Stone Masons and Carvers 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 :-
Our invention relates to appliances employed for inducing an up draught in Chimneys
and for ventilating purposes generally.
Numerous devices for inducing an effective up draught have been already introduced
but many of these possess the great drawback of being very costly. Now, our
Invention has for its object the production of an apparatus for the purposes aforesaid,
which, while being thoroughly efficient in working may be made at a trifling cost.
In order that our invention may be the better understood we have appended the
accompanying sheet of drawings in which Figures 1 and 2 are respectively a front
and back elevational view of the improved cowl according to our invention. Figure 3
is a side sectional elevation of same, and Figures 4, 5 and 6 are details of the
bearings.
In accordance with our invention we proceed as follows; taking for instance the
case of what is known as a lobster back cowl or ventilator-the top A of which
rotates upon a rod or spindle a fixed within the interior of the shaft B upon a trans-
verse stay Upon said transverse stay is attached by screws or equivalents a support
or bearing C, so arranged as to be capable of a limited degree of vertical adjustment
or regulation. A washer d secured to the end of the tube D surrounding the spindle a
serves to prevent the upper portion A of the cowl or ventilator from being displaced
or blown off by wind or other disturbing causes.
Into an aperture E formed in the back of the head A of the cowl or ventilator we
introduce a conical nozzle F the small or inner end e of which extends to near the
centre of the head. In front of the inner end e of said nozzle F we dispose at right
angles or other suitable angle thereto a spindle G carrying a series of vanes, arms or
wings of any suitable shape but preferably such as will ensure that the least possible
obstruction shall be offered to the free passage of the smoke whilst the external air
entering through the nozzle, impinges upon and against the series of arms or wings
mounted upon the spindle G aforesaid, in the manner of a fan blower, which is thus
caused to rotate and an induced up draught so created.
The improved device according to our invention will also be found of especial
utility as a ventilator, inasmuch as however light the wind may be, the rotating fan
aforesaid being perfectly balanced, would draw up the shaft all heated and

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:
1°. The improved chimney cowls and ventilators substantially as herein described
and shewn in the accompanying drawings.
2°. In chimney cowls and ventilators the adaptation thereto of a series of vanes,
arms or wings, arranged upon a horizontal spindle in combination with a conicaĺ
nozzle substantially as and for the purpose herein described and shown.
30. In the improved Chimney Cowl and ventilator herein described the method
which we adopt for preventing the displacement of the head, substantially as herein
set forth.