Improvements in Bulkhead Ventilators.
Year: 1895

page_text: Improvements in Bulkhead Ventilators.
I, THOMAS UTLEY, of Sefton House, Crosby Green, West Derby, Liverpool,
in the County of Lancaster, Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to ventilators for application to bulkheads and provides a
ventilator that will allow the air to circulate freely from one compartment to
another on opposite sides of the bulkhead but will not allow water to pass through
it so that should one compartment or hold become flooded by reason of a collision
or otherwise the water will be effectually prevented from passing through into
the next compartment or hold. The construction of the ventilator is the same as
that described in the Specification of prior Letters Patent granted to me
No. 17422 A.D. 1888 but is made double, so that the valves or floats on one side
will prevent the passage of water in one direction and those on the other side
will prevent the passage of water in the other direction.
The two sets of valves or floats are contained in a common frame which is
secured in an opening in the bulkhead.
I combine with the ventilator a door arranged beneath the valves or floats and
in the frame of the ventilator so that a throughway can be afforded for air
independent of the valve chambers. This form of the apparatus is specially
intended for use in ships that carry cattle. In some cases as in cargo boats the
door might be dispensed with.
I preferably pivot the aforesaid door at top and bottom in slots provided in the
ventilator frame extending in a direction at right angles to the hulkhead, so that
when the retaining bolts have been loosened the door can be drawn away from
the bulkhead, and then turned through an angle of 90°,and retained in that
position somewhat as indicated in regard to the side light described in the
Specification of prior Letters Patent No. 20085 A.D. 1894.
Dated this 12th date of Annil 1905
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Bulkhead Ventilators.
I, THOMAS UTLEY, of Sefton House, Crosby Green, West Derby, Liverpool,
in the County of Lancaster, Engineer, de 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 ventilators for ships' bulkheads and provides a
ventilator that will allow the air to circulate freely between two compartments
Price B

page_text: separated by a bulkhead but that will not allow water to pass through it so that
should one compartment or hold become flooded from any cause the water will be
effectually prevented from passing through the ventilator into the next compart-
ment or hold. The ventilator is constructed somewhat similarly to that described
in the Specification of prior Letters Patent granted to me No. 17422 A.D. 1888
but it is made double, so that the valves or floats on one side will prevent the
passage of water through the ventilator in one direction and those on the other
side will prevent the passage of water in the other direction. The two sets of
valves or floats are contained in a common frame which is secured in an opening in
the bulkhead.
1 sometimes combine with the ventilator a door arranged beneath the valves or
floats and in the frame of the ventilator so that a thoroughfare independent of the
valve chambers is afforded for the passage of air from one compartment to another.
This feature of the apparatus is specially intended for use in ships that carry
cattle. In some cases, as in cargo boats, the door may be dispensed with.
I preferably pivot the aforesaid door at the top and bottom in slots provided in
suitable guides attached to the frame and extending in a direction at right angles
to the bulkhead, so that when the retaining bolts bave been loosened the door can
be drawn away from the bulkhead, and then turned through an angle of 90° and
retained in that position somewhat in the manner indicated with regard to the side
light described in the Specification of prior Letters Patent No. 20085 A.D. 1894.
Referring to the accompanying drawings,
Figure 1 is a vertical transverse section of my improved ventilator, and
Figure 2 is a horizontal section of the same on the line x, x Figure 1.
A is the bulkhead in which is formed an opening to receive the frame B of the
ventilator which is firmly secured to the bulkhead by bolts screws or other suitable
means. C, C are the valves or floats which automatically close the thoroughfare
through the ventilator when the compartment or hold on either side of the bulkhead
is flooded. The construction of these floats is similar to that of the floats described
in the Specification of prior Letters Patent No. 17422 A.D. 1888. In the
present instance however I provide two sets of floats viz. one set on one side of the
bulkhead and another set on the other side of the bulkhead, so that whichever of
the compartments separated by the bulkhead becomes flooded one set of valves or
floats will be carried to their seats and the passage through the ventilator closed.
In addition to the ventilating passage controlled by the floats C I sometimes
provide another opeinng D in the frame B of the ventilator, and a door E for
closing said opening when required. The door is carried by pivots E¹, E¹ at top
and bottom which pivots are adapted to slide in slots or grooves provided in
guides F, F attached to the frame B in a position at right angles to the bulkhead.
E' indicates one of the screw fastenings of the door, which fastening is of the
well-known type common in ships' ventilators. After loosening the said fastenings
and drawing the door away from the opening D by sliding its pivots in the grooves
of the guides F, F the door can be turned about the pivots through an angle
of 90° and 'then retained in that position by the means described in the Specifi-
cation of Letters Patent No. 20085 A.D. 1894 with reference to side lights. The
door is furnished with the usual rim E' for making a water-tight joint with an
india-rubber ring G in the frame B around the opening D.
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 :-
1. A bulkhead ventilator having two sets of valves or floats 'arranged" with one
set on each side of the bulkhead substantially as, and for the purpose, specified.
2. In such a ventilator" a separate opening adapted to be closed by a door
which is constructed and arranged to slide in guides at right angles to the
bulkhead substantially as described; and for the purpose specified.

page_text: 3. A. bulkhead ventilator constructed substantially as described with reference to-
the accompanying drawings and operating as, and for the purposes, specified.
Dated this 28th day of November 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.