IMPROVEMENTS, IN IRON STEAM SHIPS, AND IN BOILERS, AND MACHINERY FOR PROPELLING THE SAME
Year: 1854

page_text: LETTERS PATENT to John Moore Hyde, of the City and County of Bristol,
Iron Ship Builder, for the Invention of "IMPROVEMENTS, IN IRON STEAM
SHIPS, AND IN BOILERS, AND MACHINERY FOR PROPELLING THE SAME"
Sealed the 15th May 1855, and dated the 29th November 1854.
PROVISIONAL SPECIFICATION left by the said John Moore Hyde at
the Office of the Commissioners of Patents, with his Petition, on the
...29th November 1854.
JOHN MOORE HYDE, do hereby declare the nature of the said Invention
for IMPROVEMENTS IN IRON STEAM SHIPS, AND IN BOILERS, AND MACHINERY FOR
PROPELLING THE SAME," to be as follows, viz. :-
I construct the ship as hereafter described, so as to receive and employ a
single blade propeller; so secured and placed that its outside edge shall be in
astraight line with the run of the ship when not in use, and which propeller I
propose to balance by a weight on the shaft or driving wheel inside the ship;
the opening occupied by the same to be enclosed by a sliding plate when the
ship is under canvas. Also, I construct the after part of iron ships in such
manner that the stern post of the ship and the main post of the rudder shall
terminate as far below the 'deck as possible; the main post of the rudder from
this point to be. formed of brass or other non-magnetic material, that that the
local attraction of such iron ships may be reduced.
Also, with regard to boilers, I subdivide the ordinary flue or tubular boiler
into two or more parts, by means of diaphragms, so that there shall be two or
more horizontal surfaces of water within the same shell, and so arranged that
the flues, or tubes-in-each division shall pass through each body of water.
Also, I introduce an intermediate annular chamber between the cylinder
Price 8d1

page_text: and condenser of surface-condensing steam engines, for the purpose of col-
lecting the oil and tallow carried by the steam from the cylinders. The whole
of these improvements are intended to be employed in or in conjunction
with each individual iron ship, in order to the perfection of the same.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Moore Hyde in the Great Seal Patent Office on the
28th May 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MOORE HYDE, in the City and County of Bristol, Iron Ship Builder, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of November, in the year of our
Lord One thousand eight hundred and fifty-four, in the eighteenth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Moore Hyde, Her special licénce that I, the said John
Moore Hyde, my executors, administrators, and assigns, or such others, as
I, the said John Moore Hyde, 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 "IM-
PROVEMENTS IN IRON STEAM SHIPS, AND IN BOILERS, AND MACHINERY FOR PRO-
PELLING THE SAME," upon the condition (amongst others) that I, the said John
Moore Hyde, by an instrument in writing under my hand and seal, 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 John Moore Hyde, do hereby declare
the nature of my said Invention, and in what manuer the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
I. The nature of my said Invention, which has already been intimated
generally by the. Provisional Specification filed on application for the said
Letters Patent, is hereby further and particularly described as follows:-My
improvements in iron steam ships, and in boilers, and machinery for propelling
the same, consist,-
יי,

page_text: (First,) in the construction of the after part of the ship, by adapting it for
the reception of a single blade propeller (suitably balanced), the outside edges
whereof to be within the "lines" of the ship, such construction also pro-
viding that the propeller may be shut off from communication with the water
outside the vessel when not in use, and when the ship is under canvas, so that
the propeller when stationary may be no drag upon the progress of the vessel.
(Second,) in the construction of the stern post of the ship, and the main
post of the rudder, by making the same to terminate as far below the deck as
possible, though the main post of the rudder from this point is continued
upwards by a post or bar of brass, or other non-magnetic material, so that the
"local attraction" of such iron ships may be reduced.
(Third), the construction of the steam engine boiler to be used in my
improved iron steam ships, by making it similar to the ordinary flue or tubular
boiler, but divided into two or more parts, so as to have two or more horizontal
surfaces of water within the same shell, and so arranged that the flues or tubes
in each division pass through each body of water, and the steam spaces of
each division communicate together. Also in the construction or arrangement
of the engine for propelling the ship. An intermediate receiver, hereafter
described, is introduced between the cylinder and condenser, to collect the oil
and tallow usually carried by the steam from the cylinders into the condensers
of surface-condensing steam engines.
II. Description of the Drawings annexed, particularly describing and
ascertaining in what manner the said Invention is to be performed or carried
into practical effect.
In Sheet 1, Fig. 1, a longitudinal view (partly in section), and Fig. 2, a
transverse view (partly in section), exhibit the manner in which I construct
the after part of the ship, so as to receive a single blade propeller, which is so
arranged and placed that the outside edges thereof shall be within the "lines"
of the ship, the said propeller to be in a vertical position when not in use; such
propeller to be balanced by an adjustable weight on the shaft or driving wheel
inside the ship, so as to counteract or counterpoisė its leverage, to prevent
vibration; the opening occupied by the same to be enclosed by plates sliding in
grooves, so as to continue the run of the ship from the screw post to the stern
post, when the propeller is not in use and the ship is under canvas. The said
Figs. 1 & 2 also exhibit how I construct the after part of iron steam ships,
so that the stern post of the ship and the the main post of the rudder shall
terminate close to the skin or plates of the ship, whilst the main post of the
rudder is to be continued upwards in brass or other non-magnetic material,
the decks of the ship adjacent to the compass being secured to wooden beams;

page_text: which arrangements prevent the magnetism of the after part of the vessel
being concentrated in the said stern post and rudder post, and admit of
placing the steering compass in such position that the magnetic influence of
the ship is, as regards the said steering compass, balanced. Should the con
struction of the ship, however, be such as to prevent the said steering compass
from being placed in that position where the magnetic influence is in equi-
librio, then, in that case, I use vertical bars of soft iron, placed so as to balance
any amount of error remaining; thus the correcting material being the same as
that of which the ship is constructed, any change taking place in the condition
of the one, will be balanced by that of the other. In Sheet of Drawings
No. 1, aforesaid, at Fig. 1, A denotes the single blade propeller within the
run or lines of the vessel; B, B, sliding plates, moving in suitable grooves, to
cover the opening for the propeller, and to continue the run of the stern
post; C, C, chains to raise or lower the same. At Fig. 2, the propeller A
is counterpoised the weight D on the driving wheel or shaft; B, sliding
plates; C, C, chains to raise or lower the same, which are shewn secured to
belaying pins in the ship's bulwarks, and may be unshipped whenitis requisite
to let down the sliding plates; G, bulk-head, to be formed partly of wood
and partly of iron, the upper part from G to the deck being of wood; W, W,
wooden beams; E, E, the ends of the stern post and the main post.of.the
rudder; E, the connecting part of the rudder, carried up through the deck
to the steering wheel, and made of brass or other non-magnetic material.
..1
In Sheet of No. 2 Drawings, Fig. 3, a transverse section of boiler;
and Fig. 4, longitudinal section of boiler, exhibiting the manner in which I
subdivide the ordinary flue or tubular boiler into two or more horizontal.
parts, by means of partitions or diaphragms, so that there shall be two or
more horizontal surfaces of water within the same shell, and so arranged that
-the-flues-or-tubes-in-each-division-shall-pass-through-each-body-of-water,
the steam space on each side of the said diaphragm being connected with
suitable pipes to equalize the steam pressure, the feed being supplied to each
division in the usual way. In the Figs. 3 & 4, D, D, denotes the partition or
diaphragm; S, S, steam spaces; W, W, water spaces; T, tube the steam
spaces; F, F, furnace. The same letters of reference, whether occurring in
Fig. 3 or Fig. 4, denote the same parts. Fig. 5 (in said Sheet 2) is a sec-
tional view, which exhibits how I construct the intermediate annular chamber
and receiver, which-I-introduce between the cylinder and condenser of surface-
condensing steam engines, for the purpose of collecting the oil and tallow,
otherwise carried by the steam from the cylinder into the condenser, and
thereby injuring the process of condensation; the said chamber being sur
i
1.

page_text: rounded with cold condensed water in its passage, as feed to the boiler or
boilers, when it chills and condenses the tallow and oil carried by the steam
out of the cylinder, the said oil and tallow passing from the bottom of the
chamber into a receiver or receiving vessel, from which it may be cleaned out
when required; through which receiving vessel, and also through the said
chamber, the condensed water is pumped into the boiler. In said Fig. 5 a
denotes the exhaust pipe from the cylinder; 6, the annular chamber aforesaid
surrounding the pipe d, the upper end of which pipe leads to the condenser,
and the lower end by a smaller pipe c to the receiving vessel d. Into
this vessel and through the said pipe the oil and tallow which is chilled
in the pipe a is received, as also is the condensed water from the condenser
through the pipe e. fis the pump whereby the said water is drawn from
the receiver, and is delivered through the pipeg to the annular chamber b,
and through the said chamber and the discharge pipe h into the boiler.
In order to provide for the difference of expansion and contraction between
the pipe a, which is of copper, and the chamber b, which may be of iron,
stuffing boxes are provided at m, m, and the entry opening in the chamber at
22 is secured by an india-rubber ring, tightly compressed between the metal
of the said chamber and a flange made upon the pipe a for the purpose.
Having now described the nature of the said invention, aud in what manner
the same is to be performed, I declare that I do not claim any of the details
of the mechanism or arrangements of parts herein set forth and described; as
considered seperately and apart from this Invention, as the said details may be
modified in a variety of ways; but I claim to maintain the exclusive powers
granted to me by the aforesaid Letters Patent, as regards the Invention of
"Improvements in Iron Steam Ships, and in Boilers, and Machinery for
Propelling the same," the nature and character whereof are set forth in the
outset of this Specification, and afterwards exemplified in detail.
In witness whereof, I, the said John Moore Hyde, have hereunto set my
hand and seal, this Twenty-eighth day of May, in the year of our Lord
One thousand eight hundred and fifty-five.
Signed and sealed in my presence,
F. W. CAMPIN,
Patent Agent, 156, Strand.
J. M. HYDE. (L.S.)