AN APPARATUS PERMITTING THE DIFFERENT PARTS OF MACHINERY WORKING IN THE "WATER OF SCREW VESSELS. WITH WELLS TO BE EXAMINED AND MENDED
Year: 1858

page_text: LETTERS PATENT to Jozé Luis, Patent Agent, of No. 1B, Welbeck St.,
Cavendish Sq, London, in the County of Middlesex, for the Inven-
tion of AN APPARATUS PERMITTING THE DIFFERENT PARTS OF MACHINERY
WORKING IN THE "WATER OF SCREW VESSELS. WITH WELLS TO BE EXAMINED
AND MENDED."-A communication.
Cavendish Sq, London, in the County of Middlesex, for the Inven-
tion of AN APPARATUS PERMITTING THE DIFFERENT PARTS OF MACHINERY
WORKING IN THE "WATER OF SCREW VESSELS WITH WELLS TO BE EXAMINED
AND MENDED."-A communication.
Sealed the 17th September 1858, and dated the 28th June 1858.
PROVISIONAL SPECIFICATION left by the said Jozé Luis at the Office
of the Commissioners of Patents, with his Petition, on the 28th June
1858.
I, Jozé Luis, Patent Agent, of No. 1B, Welbeck St., Cavendish Sqro,
London, in the County of Middlesex, do hereby declare the nature of the
said Invention for "AN APPARATUS PERMITTING THE DIPPERENT PARTS OF
MACHINERY WORKING IN THE WATER OF SCREW VESSELS WITH WELLS TO BE
EXAMINED AND MENDED," (a communication to me from a foreigner residing
abroad,) to be as follows:-
The utility of wells in screw vessels is now generally acknowledged, but it
is not sufficient to prevent the inconveniences which arise to this submarine
propeller. In fact, it is necessary not only to examine the screw, but to repair,
if required, the parts which are submerged without being obliged to put the

page_text: It
vessel in dock. On this condition only this system presents the desirable
security, the repairs being then & in all cases practicable & economical.
is to attain this end that I have made the present apparatus.
In steam vessels with wells the screw is placed in a framework which slides
on two guides fixed on the sternposts of the vessel. This framework is made
use of to descend into the well a sort of box, to which it must be attached
after having opened a valve to permit the water to enter the box by degrees
as it descends till it rests on supports. When this is done, and the frame-
works is fixed to guides by means of two bolts, the valve before-inentioned is
now shut, and with the aid of a hand pump the water is emptied out of the
box, into which a man can now get by passing through a sort of chimney at
the top of the box. When in the box he turns the screw, which causes a
cylinder connected with the box, and having a close fitting rim of india-rubber,
to move, when this rim presses strongly against the rundle belonging to the
supports, and he is sure the joint is well made, which he may be by turning a
tap placed for that purpose. The tap in this instance must give no water.
He then unscrews a little fastening, which allows the water in the cylinder and
in the tube in which the driving shaft works to run into the box, whence it is
withdrawn by the pump before mentioned. The cylinder is fixed to the box
by means of screws. The cover of the cylinder is now removed, thus per-
mitting an examination of the inner part of the cylinder, the shaft, & cushions
in which it works. If it is necessary to change or repair the cushions (a
frequent case) this is how one must proceed:-The shaft is pushed into a
certain position, the screws which hold the cushions on the sternposts are
removed, then a sling is placed on the shaft, which is rested in the ordinary
manner by means of a chain brought through the chimney of the box. In
continuing to push the shaft the cushion is drawn out of the tube; it can
then be slipped along the shaft, and each of the parts slung by the aid of two
ring screws. The two bolts being now withdrawn the cushion can easily be
removed. It must be remarked, however, that the manoeuvre just mentioned
is just the same as that employed to do the same work when the vessel is in
dry dock, consequently my apparatus in no way complicates it.
In giving
the tube in which the shaft works a certain form, the shaft can be drawn into
the vessel, where it can be changed or repaired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jozé Luis in the Great Seal Patent Office on the 27th
November 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOZE
Luis, Patent Agent, of No. 1B, Welbeck Street, Cavendish Square, London,
in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of June, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Jozé Luis, Her special licence that I, the said Jozé Luis, my executors,
administrators, and assigns, or such others as I, the said Jozé Luis, my
executors, administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "AN APPARATUS PERMITTING THE DIFFERENT
PARTS OF MACHINERY WORKING IN THE WATER OF SCREW VESSELS WITH WELLS
TO BE EXAMINED AND MENDED," (a communication,) upon the condition (amongst
others) that I, the said Jozé Luis, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
⚫ NOW KNOW YE, that I; the said Jozé Luis, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (and accompanying Drawings) (that is to say) :-
:-
The utility of wells in screw vessels is now generally acknowledged, but it is.
not sufficient to prevent the inconveniences which arise to this submarine
propeller. In fact, it is necessary not only to examine the screw, but to
examine & repair, if required, the parts which are submerged without being
obliged to put the vessel in dock. On this condition only this system presents
the desirable security, the repairs being then and in all cases practicable &
economical. It is to attain this end that I have composed this present_
apparatus. In steam vessels with wells the screw is placed in the framework
A. (Figs. 1, 2, 3, 4,) which slides on two guides a, a, (Figs. 1, 2, 3, 4,) placed:

page_text: on the sternposts B, B, (Figs. 1, 2, 3,) of the vessel; I make use of this
framework in order to descend into the well a sort of box C (Figs. 2, 3, 5),
to which it is buttoned after having opened a valve C (Fig. 5) to permit the
water to enter in the box by degrees as it descends till it rests on the
supports D, D, (Figs. 1, 2, 3, 5, 6,) and the framework A (Fig. 2) is fixed
to the guides a, a, (Fig. 2,) by means of two bolts b, b, (Figs. 1, 2, 3,) the
valve e (Fig: 5), before mentioned, is then shut, and by means of a hand
pump F (Figs. 2, 3, 5), the water is emptied out of the box, into which a
man can now get by passing through a sort of chimney C. When in the box
he turns a screw G (Figs. 2, 5), which causes the cylinder H (Figs. 2, 3, 5),
to move; the cylinder has a close fitting cap of india-rubber as soon as the
cap presses strongly against the rundle belonging to the supports D', and he.
is sure the joint is stopped, which he may be by turning a tap h (Fig. 2),.
placed for that purpose, (the tap in this instance must give no water,) he then
unscrews a fastening h' (Fig. 2), which allows the water in the cylinder H.
& in the tube of the shaft I to run into the box C, whence it is drawn by
the pump F, before mentioned; the cylinder H is then fixed to the box C by
means of nuts c', c', and the bolts c", c"; the cover g (Figs. 2, 5) is then
removed, thus permitting an examination of the inner part of the cylinder H,
and shaft I, and the cushions J, in which it rests. If it is necessary to change
or repair the cushions (a frequent case), this is how one must proceed.
The shaft I is pushed into a certain position, (see Figs. 2, 3,) the screws
which hold the cushions J on the sternposts are removed, then a sling is
placed on the shaft I, .which is rested in the ordinary manner by means of
a chain brought through the chimney C' of the box; in continuing to push
the shaft the cushion J is drawn out of the tube of the sternpost (see
Figs. 2, 3), it can then be slipped along the shaft in the position indicated by
red ink in the plan, and slung by the aid of two ring screws. The two bolts
K being removed, the cushions can easily be withdrawn. I must remark,
however, that the manoeuvre I have just mentioned is the same as used when
the vessel is in dry dock, consequently my apparatus in no way complicates it.
In giving the tube L in which the shaft works a certain form, the shaft I
can be drawn into the vessel, where it can be changed or repaired.
A, frame of the screw, Figs. 1, 2, 3, 4; A', A', cushions in which the shaft
of the screw works, fixed on the framework A, Figs. 2, 8; a, a, guides of the
framework of the screw, Figs. 1, 2, 3, 4; B, B, sternpost and false stern-
post of the screw vessel, Figs. 1, 2, 3; C, sheet iron box, Figs. 2, 3, 5;
C', chimney of the box, Figs. 2, 3, 5; C, valve for admitting water into the
box C when being immersed, Fig. 5; D, D', supports on which the cushions

page_text: rest, fixed to the framework of the screw and to the box C, Figs. 1, 2, 3, 5, 6;
D', a support with bow, on which the rundle of india-rubber presses, Fig. 6;
b, b, bolts fixing the framework to the guides, Figs. 1, 2, 3; F, pump to
empty the water out of the box, Figs. 2, 3, 5; G, screw for moving the
cylinder H along the supports D, Figs. 2, 5; H, cylinder bearing the india-
rubber rundle for forming a joint on the support D', Figs. 2, 3, 5; h, cock for
seeing if the joint of the cylinder is well made, Fig. 2; h', cork stopping the
opening by which the water is let out of the cylinder, Fig. 2; I, driving shaft,
Figs. 1, 2, 3, 5; c', c', nuts helping to fix the cylinder to the box, Fig. 5;
c", c", bolts, Fig. 5; g, cap to the cylinder H, Figs. 2, 5; J, cushions of the
driving shaft I, with duplicate piston ring adjusting itself in the support D'
(Fig. 6), & serving to fix it on the sternpost, Figs. 1, 2, 3, 5, 9; K, K,
bolts binding the two parts of the cushions together, Figs. 1, 2, 3, 9; L, tube
of the driving shaft, Fig. 7; M, distance between the two-sternposts of the
vessel, and consequently the length of the well, Fig. 2.
In witness whereof, I, the said Jozé Luis, have hereunto set my hand
and seal, this Twenty-seventh day of November, in the year of our
Lord One thousand eight hundred and fifty-eight.
J. LUIS. (L.S.)