Improvements in and relating to Watertight and other Doors, Ports, Scuttles, and the like.
Year: 1890

page_text: Date of Application, 15th Jan., 1890
Complete Specification Left, 5th Mar., 1890-Accepted, 5th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Watertight and other Doors, Ports,
Scuttles, and the like.
I, WILLIAM GRAHAM CLARK of 7 Carmichael Street, Govan, in the County of
Renfrew, Shipyard Manager, do hereby declare the nature of this Invention (as
communicated to me from abroad by James Stewart Clark of 42 Gran Via Bilbao, in
the Kingdom of Spain, Naval Architect,) to be as follows:-
This Invention relates to an improved method of and means for hinging, locking
and opening water tight doors, ports and scuttles in ships the said method and means
being also applicable to other doors. Under the Invention the door, port or scuttle
may have any desired number of fastenings these being all secured and opened or
unlocked at one operation and from either side. The door is hung or centred on a
shaft which may be vertical or horizontal and is carried on cam hinges the straps of
which are secured to the bulkhead or framing or to the door itself. On the shaft there
is fitted eccentrically a worm wheel geared with a screw on a separate shaft and
which second shaft may pass through the bulkhead or framing a hand wheel being
situated on
both ends of it so that it may be worked from either side of the
bulkhead or framing or the worm shaft may be turned by ratchet or lever mechanism
or it may have a bevel wheel upon it geared with a like wheel passing to any desired
point. By giving the worm shaft half a turn the shaft carrying the door or the like
is moved backwards so as to withdraw the catches from or enter them into their
fastenings simultaneously.
Dated this Fourteenth day of January 1890.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to Watertight and other Doors, Ports,
Scuttles, and the like.
I, WILLIAM GRAHAM CLARK of 7 Carmichael Street, Govan in the County of
Renfrew, Shipyard Manager, do hereby declare the nature of this invention and in
what manner the same is to be performed as communicated to me to be particularly
described and ascertained in and by the following statement :--
This Invention relates to an improved method of and means for hinging, opening,
closing and fastening water tight or other doors, ports and scuttles in ships the said
method and means being also applicable to other doors, and under the Invention the
door, port or scuttle may have any number of fastenings considered to be desirable, all of
which are secured or opened at one operation and from either side of the bulkhead
or from the deck above or below.
The door is hung or centred on a shaft carried on cam hinges the straps of which
are secured to the bulkhead or to the door if desired, or instead of cams, the shaft
may have cranks with sufficient throw to draw the door backwards or forwards to
give the amount of fastening desired or it may have ratchet teeth working in racks
made on the hinges.
On sheet 1 of the accompanying drawings figure 1 is a front elevation figure 2, a
sectional elevation and figure 3, a transverse section of the first described arrangement
and wherein the door, port or scuttle A is hung on a shaft B, having cams secured
upon it the straps C, of which are bolted to the bulkhead or instead of cams, cranks
centred on the brackets U, and connected to the shaft B, may be used. On the shaft B,
a worm wheel D, is also fitted eccentrically and geared with a worm screw E, passing

page_text: horizontally through the bulkhead, to enable the door A, to be opened from either
side. The hinges F, which are secured to and carry the door A, have the holes
through which the shaft B, passes formed elliptical to enable the shaft to turn without
giving the door a lifting motion. On the worm wheel D, being turned, the shaft B,
is moved backwards or forwards drawing the door A, with it and on turning the
wheel D, to close the door the wedge pieces H, which are secured to it and of which
any desired number may be employed are forced under the fastenings G, connected
to the bulkhead or outer frame of the door thus tightly wedging the door A, against
the frame or abutment J, the hinges F, pressing the door firmly against the frame J,
on the. side at which they are fitted.
Where there is little room or the door is very heavy a ratchet or ratchets may be
fitted to the worm screw E for the purpose of turning it or the shaft B may be
extended to the deck above or below and worked by a lever, which lever on being
moved through an arc will turn the shaft and free the door from or enter its catches
into the fastenings G.
Figure 1 sheet 2 illustrates in front elevation, figure 2 in horizontal section and
figure 3 in vertical cross section the modification in which instead of employing cam
hinges the shaft B has ratchet wheels a fitted on it these being geared with racks
made on or secured to the parts F" of the hinges F.
The parts F¹ slide in inclined guides y attached to the bulkhead and by turning the
shaft B, which may be effected by any of the means before referred, the door is moved
horizontally so as to enter the wedge pieces H into or withdraw them from the
fastenings G.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me,
I declare that what I claim is :-
In water tight and other doors, ports, scuttles and the like the combination of
apparatus for hanging, opening, closing and securing the door, port or scuttle, sub-
stantially as hereinbefore described and in part shewn on the accompanying sheets of
drawings.
Dated this Fourth day of March 1890.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.