Improvements in Ships' Ventilators.
Year: 1898

page_text: Improvements in Ships' Ventilators.
I, CHARLES KING TUTIN, of 9, Back North Bridge Street, Monkwearmouth,
Sunderland, in the County of Durham, Plumber, do hereby declare the nature
of this invention to be as follows:-
My invention relates to improvements in ventilators for the cabins, saloons and
other parts of ships, and has for its object to provide a means whereby such
ventilators may be opened and closed more quickly and easily than those hitherto
employed.
My invention consists in providing, in the usual ventilating tube, a central
boss, supported by suitable stays, the upper half or thereabouts of the said boss
having an internal or female screw thread formed thereon, with which engages
an externally threaded nut having in its centre a square hole, through which,
and the said boss, passes a shaft or spindle of square formation in cross section.
and adapted to fit the said hole, and be rotated with the said nut, and by such
rotation to be moved longitudinally in either direction.
The upper or outer end of the said shaft or spindle is connected to a cover
arranged in the form of mushroom-head, and adapted to fit upon, and entirely
close the outer end of the said ventilating tube when the said shaft or spindle
is moved inwardly, and to be raised from, and uncover the outer end of the said
ventilating tube when the shaft or spindle is moved in the opposite direction.
such rotation of the said shaft or spindle being effected from the inside by the
means of a suitable handle, or from the outside by means of the before mentioned
cover, a suitable stop or stay being provided for preventing the said nut from
being unscrewed from the said boss beyond a certain distance, while a pair of
dies may be provided at the lower or inner end of the said nut for gripping the
said shaft or spindle and holding it in the desired position.

page_text: of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:
My invention relates to improvements in ventilators for the cabins, saloons, and
other parts of ships, the object of which is to provide means for opening and
closing the same (from inside the cabins or the like if desired) more quickly and
easily than such ventilators hitherto made and used.
In order that my invention may be fully understood, reference is hereinafter
made to the accompanying drawings, of which,
Fig. 1 is a vertical section of my improved ventilator, showing the position
of the internal arrangements when the vertically operating rod is in a fixed
position, and the ventilator closed as shown by full lines, or open as shewn by
dotted outline.
Fig. 2 is a like section but shewing the position of the internal mechanism
when the said rod is free to be moved vertically for raising (as shown) or closing
the ventilator as in Fig. 1.
Fig. 3 is a section upon the line A B Fig. 1.
My invention consists in providing in the usual ventilating tube A, a central
boss B, supported by suitable stays C connected to A, the upper half or there-
abouts of the said boss being provided with an internal or female screw-thread,
with which engages an externally threaded hollow nut or plug D, in the crown
of which a square hole is formed, through which, and the said boss B, passes a
shaft or spindle E. of square formation in cross section, so as to be free to slide
vertically in the plug D, but not to rotate therein but therewith, the upper and
outer end of the said shaft or spindle E having fixed thereon a cover or canopy F,
preferably of mushroom formation or concave upon its under surface, and adapted
to, at all times form a rain shelter for the tube A, even when raised for ventila-
tion, as shewn by full lines in Fig. 2, and dotted outline in Fig. 1, and to entirely
cover and enclose the upper end of the said tube, when lowered as at Fig. 1. and
in order that when F is so lowered the upper end of A may be closed against
all rough winds and weather, I may form in the upper surface or rim of A an
annular ridge or channel G, in which I place and fix a resilient ring H. which
may conveniently be of rubber or rubber composition or other suitable material
that will readily form an air tight connection between A and F.
The lower half or thereabouts of the boss B is coned internally, in which rests
a pair of disconnected dies or plugs J and K. formed internally to fit against the
shaft or spindle E. and externally to fit the coned formation of B. The manner
of operation is as follows.
Assuming that the ventilator is closed as at Fig. 1, and that a right handed
screw thread unites B and D, if a right handled turn be now imparted to the
spindle or shaft E from inside the cabin or the like by the means of a handle L
on the lower end of E, or a left handed turn from above by means of the cover F,
it follows, that a like motion would be imparted to the plug or nut D, by reason
of E being of rectangular formation in cross section, and such rotation of D
would unscrew it from the boss B. as far as permitted by an adjustable ston M.
mounted in one of the stars C. and such unscrewing and raising of D would leave
free the plugs J and K..so that the shaft E and its cover F may be raised to any
height desired, limited by the length of E, and the handle L abutting against B.
the plugs during such raising taking approximately the positions shewn in Fig. 2.
and when the said canopy has been raised to the desired height. a reverse motion
imparted to E. by either of the means stated, would screw the plug D back again
into B, by which operation the lower surface of D would collide with the plugs.J
and K and force these back into the cone in B. these then grasping the spindle E
and holding it in the position placed. a repetition of which operation would be
emploved when E is to be again lowered and fixed in any other position, or for
entirely closing A as at Fig. 1.
To facilitate cleaning, lubricating the moving parts, and for other purposes,

page_text: the stop M may be turned clear of the plug D as at Fig. 2, thus permitting D,
J and K to be entirely removed from B if required.
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) The herein described improved ventilator adapted to be operated upon
from below and above, and fixed in any desired position by the mere rotation of
the canopy spindle substantially as set forth and shewn.
(2) The improved ventilator, consisting of the usual tube A, carrying in stays C
a boss B, screwed internally to receive a screw plug D and coned to receive a
pair of plugs J and K, the said plug D having a central rectangular hole through
which passes a spindle or shaft E carrying at its upper end a canopy F, and at
its lower end a handle L, the raising and lowering of E and F being effected
and fixed in any desired position by the mere rotation of the same, the whole
connected combined and operating substantially as and for the purposes described
and shewn.
Dated this 9th day of March 1899
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, London, E.C.,
Agent for the Applicant.