Improvements in Means for Ventilating Ships, Submarine Workings, and Diving Dresses.
Year: 1894

page_text: Date of Application, 26th Oct., 1894
Complete Specification Left, 26th July, 1895-Accepted, 19th Oct., 1895
PROVISIONAL SPECIFICATION.
[Communicated from abroad by JOHN FEATON, of Hazlett Street, Mining Agent,
and JOHN PACKER GORE MARTIN, of Vulcan Lane, Accountant, both of
Auckland, New Zealand.]
Improvements in Means for Ventilating Ships, Submarine Workings,
and Diving Dresses.
I, FREDERIO O'CONNOR PRINCE, of 37 Cursitor Street, London, E.C. Patent
Agent, do hereby declare the nature of this invention to be as follows:-
This invention relates to means for ventilating ships and submarine workings.
According to the first part: Into the hold, engine room, or other portion of
the ship to be ventilated is carried from the deck an air tight pipe terminating
in a bell-shaped mouth. The pipe makes junction with a vertical pipe which is
connected to a bend and extends upwardly some distance into the air and carries
on top an exhaust cowl or ventilator. Heat is proposed to be used for causing
an increased upward current of air in the pipes when the cowl or exhaust action
is not sufficiently effective. This heat is obtained and applied by means of a
gas burner, lamp, or jet of steam; the flame from a burner, or the steam jet
being admitted into the pipe at or near the deck. It may be found advisable,
space being available, to fix the upward bend of the pipe and the apparatus for
introducing heat therein in the "between deck space and so avoid risk of
damage thereto during heavy gales, or from seas tumbling inboard during foul
weather. An independent down draught shaft of sufficient diameter being provided
it would then be possible during the continuance of hurricane gales to close all
deck apertures or entrances precluding the possibility of any seas shipped finding
their way below.
In applying the invention to submarine workings, I proceed as follows:-
Into the diving bell or other water-tight chamber used where submarine workings
are being carried on, or into a diving dress worn by a single worker, will be
carried from the staging, platform, or deck of vessel employed, two air-tight
pipes; one pipe termed the exhaust pipe to be carried upwardly from a bend
on the deck surface a suitable length, capped with an exhaust cowl or ventilator,
and fitted with a lamp, or other apparatus for creating heat and so causing an
upward current of air as specified in the foregoing: The second, termed the
supply pipe used for down-draught, to be of somewhat wider diameter than the
exhaust pipe terminating at the surface or deck end with a wide bell-mouth.
In all cases it is contemplated to use screw jamb valves to be at the control
of the submarine workers, whereby the currents of air passing through the pipes
(upward and downward) may be regulated by them at will.
Dated this 26th day of October 1894.
F. OC. PRINCE,
Agent for Applicants.

page_text: F
Improvements in Means for Ventilating Ships, Submarine Workings,
and Diving Dresses.
I, FREDERIC O'CONNOR PRINCE, of 37 Cursitor Street, London, E.C., Patent
Agent, 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 means for ventilating ships and submarine workings.
To enable the same to be properly understood reference should be made to the
accompanying drawings.
According to the first part, into the hold, engine room, or other portion of
the ship to be ventilated, is carried from the deck A, an air tight pipe B,
terminating in a bell shaped mouth C. The pipe makes junction with a vertical
pipe D, which is connected to a bend E, and extends upwardly some distance
into the air and carries on top an exhaust cowl or ventilator F. Heat is
proposed to be used for, causing an increased upward current of air in the pipes
when the cowl or exhaust action is not sufficiently effective. This heat is
obtained and applied by means of a gas burner or jet of steam, the flame from
the burner, or the jet of steam being admitted into the pipe D, at or near the
deck at G. It may be found advisable, space being available, to fix the upward
bend of the pipe and the apparatus for introducing heat therein in the "between
deck space
H, and so avoid risk of damage thereto during heavy gales or from
seas tumbling inboard during foul weather. By providing an independent down
draught shaft J of sufficient diameter it would be possible during the continuance
of hurricane gales to close all deck apertures, precluding the possibility of any
seas shipped finding their way below.
"
In applying the invention to submarine workings I proceed as follows. Into
the diving bell or other water tight chamber used where submarine workings
are being carried on, or into a diving dress worn by a single worker, will be
carried from the staging, platform or deck of vessel employed, two air tight
pipes; one pipe being termed the exhaust pipe, to be carried upwardly from a
bend E on the deck surface a suitable height and capped with an exhaust cowl
or ventilator F and fitted under bend with a lamp or other apparatus G for
creating heat to cause an upward current of air, as specified in the foregoing.
The second, termed the supply pipe, used for down draught to be somewhat
wider diameter than the exhaust pipe, terminating at the surface or deck end
with a wide bell mouth, such as J. In all cases it is contemplated to use screw
valves of known construction under the control of the submarine workers, whereby
the currents of air passing through the pipes, upward and downward, may be
regulated by them at will.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :
1. The arrangement of means herein before described for ventilating ships.
2. The arrangement of means hereinbefore described for ventilating submarine
workings.
F. O'C. PRINCE.