An Improvement relating to Ships' Ventilators.
Year: 1898

page_text: Date of Application, 13th Dec., 1898
1000
1.900
Date of Application, 13th Dec., 1898
Complete Specification Left, 13th Sept., 1899—Accepted, 19th Dec., 1800
PROVISIONAL SPECIFICATION.
An Improvement relating to Ships' Ventilators.
We, ROBERT THOMPSON, Shipbuilder, of The North Sands Shipbuilding Yard,
Sunderland, SEPTIMUS JONATHAN GLOVER, Shipowner, of 88, Bishopsgate Street,
London, and JAMES PORTER, Marine Engineer, of 19, Pitman Street, Canton,
Cardiff, do hereby declare the nature of this invention to be as follows;-
This invention relates to ships' ventilators of the kind wherein a cowl or the
like is arranged over a coaming or tube fixed to the deck or equivalent
around the ventilating hole or orifice therein. To prevent the entry of water at
this hole or orifice in rough weather, it is customary to close it indirectly by
removing the cowl and then stopping the mouth of the coaming with the aid
of a plug. In practice, however, the coaming is apt to get displaced or be rendered
defective whereupon free access for water results and the safety of the ship is
endangered; the object of the present invention is to obviate such risk.
To this end, we provide about the ventilating orifice or hole in the deck or
equivalent a seat for a plug for obtaining the direct closure of same, in con-
junction with the usual plug at the top of the coaming or not as desired.
According to one mode of practically applying the invention, to the underside
or inside of the deck or a wall of the space to be ventilated and around the orifice
or hole therein, surrounded with the ordinary coaming, we fix a tapered throat-
piece or gland whereinto a corresponding plug is adapted to be inserted and
withdrawn to accomplish the closing and opening of the said ventilating orifice
or hole. This plug may be fitted with a rubber or other packing ring or rings
for procuring additional tightness and it is furnished with means, such as an
eyebolt, for enabling it to be conveniently manipulated from the top of the
coaming.
Thus it will be seen that in the event of the coaming being washed away or
damaged, the orifice in the deck or equivalent is still, or can be effectually
stopped thereby avoiding the risk attending the present plan. A further ad-
vantage accrues, for if the coaming is displaced and cannot be replaced for a time,
the joint of the plug and orifice can be caulked to temporarily maintain the
necessary security.
Dad this 19th day of Ducamber 1898
PRYOR & HARVEY,
Agents.
An Improvement relating to Ship's Ventilators.
We, ROBERT THOMPSON, Shipbuilder, of The North Sands Shipbuilding Yard,
Sunderland, SEPTIMUS JONATHAN GLOVER, Shipowner, of SS, Bishopsgate Street,
London, and JAMES PORTER, Marine Engineer, of 19, Pitman Street, Canton,
Cardiff, do hereby declare the nature of this invention and in what manner the

page_text: same is to be performed to be particularly described and ascertained in and by
the following statement:
-
This invention relates to ships' ventilators of the kind wherein a cowl or the
like is arranged over a coaming or tube fixed to the deck or equivalent
around the ventilating hole or orifice therein. To prevent the entry of water at
this hole or orifice in rough weather it is customary to close it indirectly by
removing the cowl and then stopping the mouth of the coaming with the aid
of a plug. In practice, however, the coaming is apt to get displaced or be rendered
defective, whereupon free access for water results and the safety of the ship is
endangered; the object of the present invention is to obviate such risk.
To this end, we provide about the ventilating orifice or hole in the deck or
equivalent a seat for a plug for obtaining the direct closure of same, in con-
junction with the usual plug at the top of the coaming, or not as desired.
The accompanying drawing is a central vertical section and it illustrates, by
way of example, one mode of practically applying the invention.
According to the example, to the underside or inside of the deck A or a wall
of the space to be ventilated, and around the orifice or hole B therein that is
surrounded with the ordinary coaming C and communicates with the usual
shaft D, we fix a tapered metal throat-piece or gland E whereinto a correspond-
ing plug F is adapted to be inserted and withdrawn to accomplish the closing
and opening of the orifice or hole B.
The arrangement of the throat-piece or gland E relatively to the deck A,
orifice B and shaft D, may be various. As shown, it is formed with an inter-
mediate flange e for riveting it to the deck A, and its top is fitted within the
orifice B, while the top of the shaft 1) encloses, and is riveted to its bottom.
The plug F is constituted in the known way, though, as represented, it may be
fitted with a rubber ring or rings f, f for procuring additional tightness; and it
is furnished with means, such as an eye-bolt f¹, for enabling it to be conveniently
manipulated from the top of the coaming C.
Thus it will be seen that in the event of both the plug at the coaming C and
the plug F being fitted, and the coaming being washed away or damaged, the
orifice or hole B is still closed by the plug F, or if the latter plug be not.in
position in the first instance, then, on the coaming becoming defective, it can be
easily inserted in its seat at E to effectually stop the hole or orifice. thereby avoid-
ing the risk attending the present plan. A further advantage accrues, for if the
coaming C is displaced and cannot be replaced for a time, the joint of the plug F
and orifice B can be caulked to temporarily maintain the necessary security.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed we declare that what
we claim is ;-
1. The improvement relating to ships' ventilators consisting in providing about
the ventilating orifice or hole in the deck or equivalent a seat for a plug for
obtaining the direct closure of same, in conjunction with the usual plug at the
top of the coaming, or not as desired, substantially as set forth.
2. For use with ships' ventilators of the kind referred to, the combination of
a throat-piece or gland, such as E, and a plug, such as F, both arranged sub-
stantially as, and for the purpose hereinbefore described in reference to the
accompanying drawing.
Dated this 12th day of September 1800
For the Applicants,
PRYOR & HARVEY,
Chartered Patent Agents,
3, St. Nicholas' Buildings, Newcastle-on-Tyne.