Improvements in Ventilators.
Year: 1889

page_text: Date of Application, 1st Oct., 1889
Complete Specification Left, 1st July, 1890-Accepted, 16th Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in Ventilators.
THOMAS WHITEHEAD, Practical Doctor of Defective Chimneys, Flues and Ventila-,
tion, Manufacturer of Patent Ventilators and Galvanised Iron Chimney Tops, Stove
Pipes, etc. 58 Great George Street, and 17 Nile Street, Liverpool, do hereby declare
the nature of this invention to be as follows:-
My invention applies to Improvements in Extracting and Weatherproof Ventilators,
adapted specially for ship's use, but applicable also to buildings and other places, as
rendering such Ventilators more efficacious than hitherto.
The advantages of it will be better understood from the accompanying description
and drawings.
A. plain pipe or air-shaft fixed through contre of base K. B, D. F and V-upright
guards fixed on K, supporting a cap or weather-cover I. The arrows show course
of intruding wind and weather-sprays entering at E (as representing the weather
side) the guards D D directing them into a deep curved recess, forcing them right
and left through the syphon passages CC--formed by the guards D D and B-the
mouths of the passages gradually contracting cause them to spurt forcibly over exit G—
behind centre of baffle-guard F, extracting vitiated air, smoke etc. from G, and
expelling it by outlet H and through chamber C into outer air, thus utilising wind
and water-spray force as a motive power to extract and expel.
The guard underlying the two extreme points of B is introduced as a special
protector against sprays from heavy seas, but can be dispensed with in the case of
buildings etc.
The exit aerial space being greater than usual and the guards being specially
arranged as to offer no friction, allow the vitiated air to escape from the place venti-
lated with much greater facility, and also renders the ventilation more effective and
natural than hitherto.
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1059
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COMPLETE SPECIFICATION.
Improvements in Ventilators.
THOMAS WHITEHEAD, Practical Doctor of Defective Chimneys, Flues and Ventila-
tion, Manufacturer of Patent Ventilators, and Galvanised Iron Chimney Tops, Stove
Pipes, etc. 58 Great George Street and 17 Nile Street, Liverpool, 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 applies to Improvements in Extracting and Weatherproof Ventilators,
adapted specially for ship's use, but applicable also to buildings and other places, as
rendering such Ventilators more efficacious than hitherto. The advantages of it will
be better understood from the accompanying description and drawings accompanying
the Provisional Specification. A. plain pipe or air-shaft fixed through centre of base K.
B. D. F and V upright guards fixed on K supporting a cap or weather-cover I. The
arrows show course of intruding wind and weather sprays entering at E, (as
representing the weather-side) the guards D D. directing them into a deep curved
recess, forcing them right and left through the syphon passages CC-formed by
the guards D D and B-the mouths of the passages gradually contracting cause them
to spurt forcibly over exit G-behind centre of baffle-guard F, extracting vitiated air,
smoke, etc. from G, and expelling it by outlet H and through chamber C into outer
D31.

page_text: air thus utilising wind and water spray force as a motive power to extract and
expel.
The guard V underlying the two extreme points of B is introduced as a special
protector against sprays from heavy seas, but can be dispensed with in the case of
buildings etc.
The exit aerial space being greater than usual, and the guards being specially
arranged as to offer no friction, allow the vitiated air to escape with much
greater facility, and also renders the ventilation more effective and natural than
hitherto.
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 claim is :-
1st. An entirely new arrangement and position of interior vertical guards (herein
described as forming the chambers C and directing guards D D) with the object
and principle of utilising wind and spray force as an extracting and expelling agent.
I claim to have avoided the great defect in all previous existent Ventilators of this
class, cis the penetrating of the weather force through the outer guards into the
air-shaft and utilised the weather force to positive advantage, substantially as
described.
2nd. The position and object of the splash guard V in combination with the guards
and chambers as described.
3rd. An entirely new arrangement of interior curved guards with the object of
avoiding friction to exit air and also allowing greater freedom of escape to same.
Dated this Thirtieth day of June 1890.
THOMAS WHITEHEAD.