Improvements in and relating to Cowls for Chimneys or the like.
Year: 1890

page_text: Date of Application. 25th Nov., 1890-Accepted, 17th Jan., 1891
COMPLETE SPECIFICATI
Improvements in and relating to Cowls for Chimneys or the like.
A communication from abroad by HERMANN FAULHABER, of Hall, Swabia, in the
Kingdom of Wurtemberg, Clergyman.
1, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors; 6, Lord Street, Liverpool, & 6, Bank Street, Manchester, both in
the County of Lancaster, and 323, High Holborn, in the County of Middlesex. Civil
Engineer, 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 revolvable cowls, the fixing and guiding of which are
Cowls hitherto in use have had the
performed above the fixed chimney pot cover.
disadvantage that their mobility, at the points of attachment, and revolution, was very
soon impaired by the action of soot and rust.
A cowl, according to this invention, is arranged in such a manner as to be fully
protected at its point of suspension, both against soot and smoke coming from the
chimney, as well as against rain or other moisture.
On the accompanying drawing, the cowl of this invention is shown in Figure 1 in
elevation, in Figure 2 in section, and in Figure 3 in plan.
Figure shows the points of attachment on a larger scale than the preceding
figures.
The fixed cover or diaphragm d is mounted on the smoke or steam shaft R by
means of the frame or supports a.
This cover supports, at its centre, an upright L, which has, at its upper end, a
dished head m (Fig. 4. A guide or sleeve F is placed over this upright L, which
carries, by means of the short projection and curved arms the cowl cover H.
The latter is provided in the usual manner with exit, orifices F
A ball is placed within the sleeve and upon the top M of the spindle, which
ball is preferably constructed of agate, but may be made of steel or the like.
The vane Wis affixed to the sleeve F, being held in place by means of the finishing
knob K placed at top, the lower conically tapered part of which enters the sleeve F,
whilst the outer parts s embraces, in the form of a ring, the upper end of the said
sleeve F. The wind vane W, the sleeve F and the finishing knob K are firmly
connected by means of a screw. The dimensions of the spindle L and of the finishing
knoh K are so chosen that the whole cowi arrangement, together with the wind vane,
rests loosely on the ball O, whilst the latter forus the movable connection between
the spindle and the finishing knob K.
In
In order to equalise the weight of the wind vane resting on the ball. a counter-
weight G is provided; in this manner, the draught-preventing cowl H, connected
with the vane W. can easily and lightly swing on its axis, whilst a guide ring i,
(Fig. 2) arranged at the bottom end of the sleeve, is subjected to little friction.
consequence of the above described method of suspending the cowl, the latter, at the
least current of air, is turned according to the direction of the wind in such a way
that the smoke or steam can always pass out unbindered, and a cutting off or driving
back of the same is rendered impossible.
In addition, however. to this very desirable property, the invention affords the
following advantages above ordinary cowls, namely:-—
(a) Soot or smoke cannot influence the points of attachment, as these are situated
5 above the cover d and are surrounded by the sleeve pipe F.
(b) The action of moisture or vapour on the bearings is perfectly avoided, as the
same are enveloped by the said sleeve F and the latter is completely closed at top by
the finishing knob K.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is
1. In a cowl for chimneys or the like, the combination and arrangement of a
fixed spindle I., surrounded by a sleeve F, which sleeve supports the cowl and the
wind vane, and of a ball O placed in a depression in the top of the above named
spindle, on which rests the whole weight of the cowl and the wind vane, substantially
as described.
2. The herein described arrangement of parts f
for chimneys or the like, substantially as set forth.
Dated this 24th day of November 1890.
the improved smoke cowl
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.