Improvements in Ships' Ventilators, chiefly designed for use in connection with Deck Ventilators.
Year: 1891

page_text: Date of Application, 9th Nov., 1891
Complete Specification Left, 26th May, 1892-Accepted, 2nd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Ships' Ventilators, chiefly designed for use in
connection with Deck Ventilators.
1, THOMAS UTLEY, of 5 Woburn Hill, Stoneycroft, Liverpool, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to ships' ventilators, and is chiefly designed for use in
connection with deck ventilators. The object of the invention is to improve the
construction of such ventilators.
In carrying my invention into practice I employ floats or valves, for closing the
air passages of the ventilator when and during such times as the ventilator is
temporarily submerged in water, of the character described in the Specification of
a prior Patent granted to me No. 17422 A.D. 1888.
An important feature of my present invention consists in arranging the chambers
containing the said valves in such a manner that they cause little or no obstruction
in the thoroughfare of the ventilating shaft. For this purpose I arrange the said
valve chambers either in the wall of, or wholly outside, the ventilating shaft, while
communicating with the said shaft by suitable passages. I provide each shaft
according to its size with one, two or more sets of valve chambers.
In order to facilitate the examination of the valves without necessitating the
entire removal of the valve chambers, I provide the latter with side doors which
can be very readily removed when required to allow of any desired examination.
When such doors are provided, the valve chambers may be permanently fixed to
the shaft.
Another feature of my invention is the provision of a water-tight door for
closing the cowl head combing. Heretofore this has been done by an ordinary
plug, which is not so quickly fixed in position or removed as my door. This door
may be hinged and held down by a screw clamp such as is usual in port hole
fittings.
Datad this 7th day of November 1901
THOMAS UTLEY.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Ships' Ventilators, chiefly designed for use in
connection with Deck Ventilators.
1, THOMAS UTLEY of 5 Woburn Hill, Stoneycroft, Liverpool, in the County of
Lancaster, 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 ships ventilators and chiefly to deck ventilators and has
for its object to improve the construction of such apparatus.
In carrying my invention into practice I employ air-chambers fitted with valves
or floats, for closing the air passages of the ventilator when and during such times
as the said ventilator is temporarily submerged in water, of the character described
in the Specification of a prior Patent granted to me No. 17422 A.D. 1888 but with
the improvements hereafter specified.
An important feature of my present invention consists in so placing or fixing

page_text: such air chambers in the casing or shaft as to occupy very little of the interior
space thereof and thereby to cause little or no obstruction to the free passage
of air.
Another feature of my invention is the provision of a movable cap or hood
at the top or head of the casing or shaft which in fine weather may be raised
and opened so as to allow an ordinary movable bell mouth weather cowl to be
fitted upon the casing or shaft. Another feature of my invention is the provision
of a door in the outer side of the air-chamber to facilitate the examination of the
valves without having to move such air-chamber from its position.
In the accompanying drawings which illustrate my invention
Figure 1 is a vertical central section through my improved ventilator when
arranged as used in bad weather, the cowl head combing being shown closed by the
water tight cap or hood.
Figure 2 is a horizontal section on the line a x Figure 1.
-
Figure 3 is a vertical section of the upper part of my apparatus showing the
water tight cap or hood open and the bell mouth ventilator in position as used in
fair weather.
Like letters of reference indicate corresponding parts throughout the drawings.
A is the ventilator casing or shaft which I prefer to make of cylindrical form;
B, B are the air chambers two or more of which are provided in each ventilator
according to the size thereof; B' B' are passages forming communications between
the air-chambers and the casing or shaft A. As indicated in the drawings, I fix
the said air-chambers B, B in the wall or side of the casing or shaft A in such a
manner as to occupy as little of the interior space thereof as possible and thereby
to cause little or no obstruction to the free passage of air in the casing or shaft.
I sometimes arrange the air-chambers B, B wholly outside the casing or shaft A
while communicating therewith by suitable passages.
In order to facilitate the examination of the valves without having to remove the
air-chambers I provide the latter with a side door B2, B² placed on the outer side
of the casing or shaft which can be very readily opened when required to allow of
any desired examination. When such doors are provided the air-chambers may be
permanently fixed to the casing or shaft.
The upper end of the cylindrical casing or shaft A will be so constructed as to be
capable of being opened, and fitted in fine weather with a removable bell mouthed
ventilating tube C as indicated in Figure 3 so as to allow large volumes of air to
pass down the casing or shaft. In bad weather when it becomes necessary to close
the casing or shaft the bell-mouthed tube C is removed and the casing or shaft A is
closed at the top by means of a water-tight cap or hood D which I provide for the
purpose. This cap or hood is hinged to the side of the casing or shaft at D' and is
held down by a screw clamp D2. In fine weather when the bell mouthed ventilator
is in use, the cap or hood D is allowed to hang down by the side of the ventilator as
shown in Figure 3.
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. The placing or fixing in a ship's ventilator of the air-chambers in the wall of
the ventilating casing or shaft either partially or wholly outside such wall and
communicating with the casing or shaft by suitable passages, substantially as, and
for the purpose specified.
2. The combination, with the casing or shaft A, of the air-chambers B, B fixed
in the wall of the casing or shaft A, either partially or wholly outside the said wall,
passages B B forming communications between the casing or shaft A and the air-
chambers, and doors B², B2 for the air-chambers substantially as described, and for
the purpose specified.
3. The combination, with the ventilating casing or shaft A, of a movable water
tight cap or hood so as to admit of the casing or shaft D being open during ordinary

page_text: fair weather and whilst open being fitted with a bell mouth cowl C, and of being
closed by the said movable water tight cap or hood in bad weather, substantially as
described.
4. A ship's ventilator constructed substantially as described with reference to the
drawings and operating as, and for the purposes, specified.
Dated this 26th day May 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.