An Improved 'Method of Cooling Exhaust Fans used 'for 'Smoke, Heated Air, or Gases.
Year: 1890

page_text: Date of Application, 23rd Dec., 1890
Complete Specification Left, 23rd Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
An Improved 'Method of Cooling Exhaust Fans used 'for 'Smoke,
Heated Air, or Gases.
I, SAMUEL ELLIOTT of Newbury in the County of Berks. Contractor do hereby
declare the nature of this invention to be as follows:-
My invention has for its object the keeping cool and lubricating exhaust fans
used for the purpose of extracting or forcing smoke. or heated. air or furnace.or
other heated gases and has especial reference to the fan used by me in my
apparatus for an improved methiod of and apparatus for the treatment of smoke
Letters Patent for which were granted to me No. 12460 of 1889 and by means
of my present invention I am enabled to use a fan for the extraction or forcing of
gases of a very high temperature.
The means of effecting this is by a jet of water brought in by a water pipe
having two inlet branches throught through the outside case of the fan so as to
have their outlet one on either side of-the-inside cheek of the fan close to -and
almost impinging,apon the spindle upon which the cups or vanes of the fan. are
fixed.
The effect of this is that the water is by the rapid rotary action converted into
a.constant spray which keeps cool not only the spindle and bearings but also the
cups or vanes and inside of the fan and it also prevents the oil or lubricant of
the bearings from being burnt or dried up.
Where the fan. is used for the
extraction of smoke as in my said abovementioned Patent it also keeps the cups
or vanes of the fan clean and perfectly free from any accumulation whatever of
unconsumed carbon.
Dated this 23rd day of December 1890.
COMPLETE SPECIFICATION.
An Improved Method of Cooling Exhaust Fans used for Smoke,
Heated Air, or Gases.
I SAMUEL ELLIOTT of Newbury in the County of Berks. Contractor 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 has for its object the keeping cool and lubricating exhaust fans
used for the purpose of extracting or forcing smoke or heated air or furnace or
other heated gases and has especial reference to the fan used by me in my
apparatus for an improved method of and apparatus for the treatment of smoke
Letters Patent for which were granted to me No. 12460 of 1889 and by means of
my present invention I am enabled to use a fan for the extraction or forcing of
gases of a very high temperature.
The means of effecting this is by a jet of water brought in by a water supply
pipe, having two inlet branches brought through the outside case of the fan, so
as to have their outlet one on either side of the inside cheeks of the fan, close to,
and almost impinging upon, the spindle upon which the cups or vanes of the fan
are fixed.
In the accompanying drawing in which similar letters of reference indicate
similar parts.

page_text: Figure 1 is a vertical section of an exhaust fan shewing the arrangement of my
water supply pipe and Figure 2 is an end inside sectional view.
A represents the spindle of the fan with the vanes or cups fixed thereto. B and
C the cheeks. D the water supply pipe having the two inlet branches d d
passing through the cheeks and impinging on the spindle A. so as not to impede
the draught of the fan. The effect is that the water brought in by the inlet
branches d d is, by the rapid rotary action of the fan converted into a constant
spray which keeps cool not only the spindle and bearings but also the cups or
vanes and inside of the fan and it also prevents the oil or lubricant of the bearings
from being burnt or dried up.
When the fan is used for the extraction of smoke, as in my said above mentioned
Patent, it also keeps the cups or vanes of the fan clean and perfectly free from
any accumulation whatever of unconsumed carbon.
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. In an exhaust fan for the extraction or forcing of smoke heated air or gases
a water supply pipe having two inlet branches one on either side of the vanes and
impinging on the spindle so as not to impede the draught of the fan.
2. In an exhaust fan used for the extraction of smoke heated air or gases a
water supply pipe having two inlet branches substantially as shewn and described.
Dated this 22nd day of October-1891.-