Improvements in Side Scuttles for the Lighting and Ventilating of Ships.
Year: 1894

page_text: Date of Application, 15th Nov., 1894
Complete Specification Left, 14th Aug., 1895-Accepted, 28th Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Side Scuttles for the Lighting and Ventilating
of Ships.
HENRY BURNETT WATSON, Engineer, High Bridge Works, Newcastle-on-Tyne,
JOHN STANLEY WATSON Engineer High Bridge Works Newcastle-on-Tyne,
do hereby declare the nature of this invention to be as follows:-
In our improved form of sidelight or side-scuttle the frame containing the glass
is held in position by two round pins or pivots which allow the frame to revolve.
The flat outer frame or flange which is jointed to the ships side or deckhouse is
constructed with a circular rim at right angles to the flat outer frame and on the
inside of this rim two grooves are formed of sufficient depth to receive the pivots
of the frame containing the glass.
On the outside of this rim a screw thread is formed which receives a round
jointing frame having an internal screw thread corresponding to that on the outside
of the rim and in such a manner that when a circular motion is applied the edge
of this round frame approaches to, or retreats from, the outer frame.
On the inside at one end of this round frame, is fixed in a groove the necessary
packing required to form a watertight joint between the face of the rim and the
face of the frame containing the glass. Such groove may be either formed in
the round frame itself or by means of a loose ring containing the groove attached
to the round frame.
The round jointing frame is also provided with handles by means of which it can
be moved & the packing brought to the level of the face of the frame containing
the glass & the face of the rim, thus forming between the two a perfectly water-
tight joint. On reversing the motion, the packing in the frame is drawn to a
sufficient distance to admit of the frame containing the glass revolving & opening
to any angle required.
Dated this 12th day of November 1894.
HENRY BURNETT WATSON.
JOHN STANLEY WATSON.
COMPLETE SPECIFICATION.
Improvements in Side Scuttles for the Lighting and Ventilating
of Ships.
We, HENRY BURNETT WATSON and JOHN STANLEY WATSON both of
High Bridge Works in the City and County of Newcastle-on-Tyne, Engineers,
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:-
Our invention refers to side scuttles or side lights for the lighting and ventilating
of ships and the object of our improvements is to provide means whereby the
position of the "light" and the degree of ventilation can be readily adjusted and
fixed as required and a completely watertight joint formed when the scuttle is
closed

page_text: In our improved arrangement the frame containing the glass is mounted on
pivots working in the fixed frame of the scuttle, which is attached to the ship's
side or deck house, so as to be revoluble therein to any degree of angularity and
according to our invention the said fixed frame has an inwardly projecting circular
rim or flange, screwed on its outer side, and carrying a round jointing frame
capable of circular motion for a limited distance so that by screwing it up fully
the scuttle is firmly and tightly closed and by unscrewing it the scuttle may be
opened to its full or any desired extent. Suitable stop devices and packing rings
and necessary details are provided as hereinafter set forth.
We will now describe our invention with reference to the accompanying drawings
in which
Figure 1 is a front elevation with the light closed but with the dead door open;
Figure 2 is a vertical section at right angles to Figure 1 showing all the parts
closed;
Figure 3 is a part plan view showing a detail;
Figure 4 is the same section as Figure 2 but showing the dead door open, the
glass door full open and the movable frame at its extreme inward position holding
the light.
Similar letters refer to similar parts in all the figures.
In our improved scuttle, C is the circular flat frame fixed to the wall and having
an inwardly projecting circular rim or flange E, screwed on its outer face to receive
the round jointing frame F which is correspondingly screwed on its inner face; in
the inner side of the fixed rim E are formed transverse slots D (Figure 3) in
which work the round pins or pivots B of the frame A carrying the glass. We
prefer to make these pivots hollow and containing a stop pin or ball b seated against
a spring or resilient substance such as rubber forming a spring cushion C so as to
tend always to force the pins or balls 6 outwardly, and in the inner face of the
rim E in the slots D we form a recess or notch d for the reception of the end of
the pin or ball b.
G, (Figure 1) is a handle for revolving the rim F, N is an operating ring on
the glass door A, L represents the usual dead door provided with a rubber packing
ring K into which a projecting lip on F is embedded to make a tight joint when
the dead door is screwed down.
The packing ring contiguous to the glass door may be arranged in any convenient
manner so as to be firmly nipped between the moving and fixed rims when the
parts are screwed up tight, or as we have shown, the rubber packing ring H may
be arranged in the inside of the frame E so that the edge of the glass frame will
press upon it and ensure a tight joint.
To limit the inward or opening travel of the revoluble rim F we may either
screw suitable catch stops to the plating or equivalently we may arrange upon the
rim F a spring stop device J, the bolt of which is normally pressed through said
rim by its spring and works against the screw thread on E. At a certain part of
the last or innermost thread we cut away a portion and so interrupt the thread,
then, when the rim has been unscrewed to its limit the bolt end is sprung into the
interval and thus further screwing motion is stopped. When it is required to take
the rim off, the bolt is manually withdrawn from the interval and the unscrewing
continued. This arrangement forms a neat and self-contained automatic device
and is our preferred construction.
The operation of our invention is as follows:-To open the light, raise the dead
door Land secure it in the ordinary manner; unscrew the frame F by the
handle G to its limit; pull the glass door A. inwards by the ring N until the pins &
enter the notches d when A can be freely turned to give the desired opening;
screw F outwards until its inner edge comes against the outer edge of the light
which is thus held in the required position as shown in Figure 4. To close the
light, unscrew F to its limit; shut the glass door A and then screw F outwards
which takes the door A with it (the pins 6 also being pushed into their casing by
this motion) and closes the whole as shown in Figure 2.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In a side scuttle the arrangement in combination with the pivoted glass
frame A of the jointing frame or rim F revoluble upon the inwardly projecting
flange E of the fixed frame C, and the means for operating same and the scuttle
substantially as herein set forth.
2. The improved construction and arrangement of ships' side lights substantially
as hereinbefore described and illustrated in the accompanying drawings.
Dated this 13th day of August 1895.
A. CRAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.