Improvements in and relating to Ships' Ventilators.
Year: 1890

page_text: Date of Application, 5th June, 1890.
Complete Specification Left, 26th Feb., 1891-Accepted, 28th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in and relating to Ships' Ventilators.
I, 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:
My invention relates to ships' ventilators, and is designed to afford the means
whereby a large supply of air may be admitted to a cabin, hold or other compartiment
of a ship in fine weather, whilst the ingress of water through the ventilator in
rough or storiny weather can be effectually prevented.
An important feature of my said invention consists in providing a rotating cowl
or cover having a suitable door or shutter whereby it may be easily closed in stormy
This cowl is suitably arranged
or wet weather to prevent the entrance of water.
over the upper end of the ventilating pipe and is provided with means whereby a
tight joint may be made between it and the said pipe.
My said invention also comprises other improvements hereinafter set forth.
In carrying my said invention into practice I proceed as follows, that is to say:-
I provide upon the upper or open extremity of the air or ventilating pipe, a cowl or
cover which rests upon the said pipe and can be caused to turn in any direction so
as to catch the wind more effectually. The said cowl is preferably provided with a
rim or flange having an annular groove or recess into which the upper edge
of the air pipe, or of a ring or annular piece secured thereon is adapted to enter,
suitable packing material being provided so that, by pressing down the cowl upon
the pipe or upon the said ring or annular piece, the said packing may be compressed,
thus forming a water-tight joint between them.
To provide for so pressing down the cowl upon the pipe, I find it advantageons
to employ a screw fixed in one part and fitting into a tapped hole in the other part.
For instance,
make the cowl and the pipe each with an internal cross-bar
extending diametrically across the same. In one of the said cross-bars, I fix the
said screw, and in the other cross-bar 1 form a tapped hole, or I provide this
cross-bar with a fixed nut into which the screw is inserted, so that the axis of the
said screw corresponds with the axis of rotation of the said cowl. By turning the
cowl in one direction, it will be drawn tightly down upon the pipe, by the said
screw whilst by turning the said cowl in the reverse direction, it may be released
Moreover the cowl
to permit of its being turned or adjusted to catch the wind.
can be very readily removed and replaced.
Over the opening or mouth of the said cowl, I provide a shutter or door for the
This cover is
purpose of preventing the ingress of water in stormy weather.
preferably pivoted or hinged at its upper part to the body of the cowl and is
provided at its lower part with a nut by which it may be secured to a screw
stud on the said cowl, or with any other suitable fastening device, so that the said
shutter or door may be thrown back to uncover the opening, or may be securely
closed over the same. A stop or rest is provided upon the cowl, upon which the
said door rests when thrown back.
My improved adjustable cowl may be employed with any of the usual or other
suitable ventilating pipes. I find it very advantageous to combine the said cowl
with ships' ventilators such as are described in the Specification of former Letters
Patent granted to me and dated 29th November A.D. 1888, No. 17,422.
For example, I combine my improved cowl with a cylindrical or other chamber
fixed on the deck over the ventilating-pipe and provided with perforations for the
admission of air through passages controlled by floats or valves, which, whilst

page_text: admitting air to the ventilating-pipe, prevent the entrance of water into the same.
By these means, I provide a ventilator from which water is effectually excluded,
and through which, either in fine or stormy weather, a certain quantity of air will
be supplied to the cabin, hold or other compartment; whilst, in fine weather, the
whole area of the ventilator can be opened for the passage of air and the cowl can
be turned into the most favorable position to catch the wind.
Dated this 5th day of June 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
Improvements in and relating to Ships' Ventilators.
1, THOMAS UTLEY, of 5, Woburn Hill, Stoneycroft, Liverpool, in the County
of Lancaster, Engineer, do hereby declare the nature of thus 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 relates to ships' ventilators, and is designed to afford the means
whereby a large supply of air may be admitted to a cabin, hold or other compartment
of a ship in fine weather, whilst the ingress of water through the ventilator in rough
or stormy weather can be effectually prevented without the necessity for the removal
or unshipping of any portion of the said ventilator.
For this purpose, 1 construct or provide the ventilator with an adjustable cowl
having a suitable door or shutter whereby the month or aperture thereof may be
easily closed in stormy or wet weather to prevent the entrance of water, and 1
provide suitable means whereby a tight joint may be made between the said cowl
and the ventilating pipe or passage. My improved cowl, therefore, does not require
to be removed or unshipped in stormy weather as is the case with the ordinary deck
ventilating-cowls.
In the accompanying drawings I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 represents, in vertical central section, one form of my improved ventilator.
Figure 2 is a similar view showing another form or modification of my invention,
and illustrating the application thereof to an ordinary or existing cowl-coaming.
Like letters indicate corresponding parts in these two figures.
A is a ventilating pipe; B is a cowl which is supported over the upper end of
the said pipe A, in such a manner that it can be turned into any desired position so
as to effectually catch the wind. C is a shutter or door adapted to close the mouth
or aperture of the said cowl. An annular groove or recess A. is formed in the
upper part A' of the ventilating pipe A, in which groove or recess is inserted a ring
or washer E of india-rubber or other suitable packing.
The cowl B is provided with an internal flange D. In the apparatus shown in
Figure 1, this flange is formed with an annular groove or recess D' in which is fitted
a ring or washer E of india-rubber or other suitable packing. The upper edge A²
of the ventilating pipe enters the said recess D', and the lower edge B' of the cowl B
enters the recess A*, so that, by pressing or screwing down the cowl Bas hereinafter
described upon the top of the said ventilating pipe, the said packing-rings E, E' arc
compressed and a water-tight joint is thus formed around the said cowl between the
same and the ventilating pipe. To provide for so pressing down the cowl upon the
ventilating pipe A, I employ a screw F firmly fixed in the one part, for example
the cowl, and fitting into a tapped hole in the other part. In the apparatus shown
in Figure 1, the cowl B. is provided with a cross-bar or cross-piece G, and in the
top of the ventilating pipe A is provided a cross-bar or cross-piece H. The
screw F is provided with a reduced screw-threaded portion F' which fits into a
correspondingly screw-threaded hole in the cross-bar G or in a boss G' formed

page_text: thereon, and the said screw is firmly secured and retained in position in the said
cross-bar by means of a collar F and lock nut G³. I provide, moreover, a
tapped or screw-threaded hole in a boss or nut H' on the cross-bar or cross-
piece H, into which the screw F is inserted so that the axis of the said screw
corresponds with the axis of rotation of the cowl. Therefore, by turning the
cowl B in one direction, the screw F will be caused to turn in the boss or fixed
nut H and thus draw the said cowl tightly down upon the ventilating pipe ;
whilst, by turning the said cowl in the reverse direction, it may be released to
permit of its being turned or adjusted to catch the wind. Moreover the cowl
can, by this arrangement, be very readily removed and replaced if necessary at any
time.
The shutter or door C is pivoted or hinged at I to lugs J secured to or formed on
the cowl B. C' is an annular recess formed around the inner face of the shutter or
door C and adapted to receive a ring C² of suitable packing for forming a water-
tight joint between the said shutter or door and the adjacent edge of the cowl. K is
a bolt pirotted at K' to lugs K2 upon the cowl B, and adapted to enter a suitable
slot in an extension C3 of the shutter C. Lis a nut, which is screwed upon the
bolt K, and by means of which the shutter or door C can be firmly clamped or
secured in its closed position. Any other suitable fastening device may, however,
be provided that will admit of the said shutter or door being opened and thrown
back to uncover the aperture or mouth of the cowl, and of its being securely closed.
over the same, as desired.
N is a stop or rest formed on or firmly secured to the upper part of the cowl B
to support the said shutter or door when opened and turned back upon its hinges as
shown in dotted lines in the drawing. B² is a thumb-screw or set-screw for retaining
or securing the cowl B in any position to which it may be adjusted to catch the
wind.
In some instances I dispense with the annular recess A* and packing-ring E.
Figure 2 illustrates a modification of my invention wherein the annular groove D'
and packing ring E' are dispensed with, the groove A* and packing ring E being
retained; and wherein the screw F is provided with left hand square threads instead
of right-hand V-shaped threads as in Figure 1; the said screw is, moreover, secured
in the cross-bar or cross-piece G by means of the collar F2 and G2 without the aid
of screw-threads in the boss G. G³ is a nut for preventing the accidental removal of
the screw F from the boss or nut H'.
When my improved cowl is to be applied to an existing ventilating pipe, I find
it advantageous to provide a flanged ring or annular piece As, Figure 2, which is
fitted and secured in the existing cowl-coaming or ventilating pipe A. and is
provided with the cross-bar H, and in which is formed the groove or recess A*
for the packing ring E. The said flanged ring A³ then forms practically a part of
the ventilating pipe A.
My improved cowl can be advantageously employed in combination with ventilating
pipes having floats or valves, such, for example, as those described in the Specification
of former Letters Patent granted to me and dated 29th November A.D. 1889,
No. 17422, or with any other suitable ventilating pipes or apertures.
Having now particularly described and ascertained the nature of my invention,
and in what manner the same is to be performed, I wish it understood that [
claim :-
First. A ship's ventilator so constructed that, whilst adapted for the admission of
a large supply of air, it can be conveniently closed to prevent the ingress of water,
without the necessity for the removal or detachment of any portion of the said
ventilator, substantially as hereinbefore described.
Second. An adjustable cowl provided with suitable means for closing its month
or aperture and for forming a water-tight joint around it, for the purpose above
specified.

page_text: Third. The improved ship's ventilator constructed substantially as described with
reference to Figure 1 or to Figure 2 of the accompanying drawings.
Dated this 14th day of February 1891
THOMAS UTLEY.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.