Improvements in Navigable Vessels.
Year: 1898

page_text: Date of Application, 27th Dec., 1838- Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Navigable Vessels.
I GRAHAM FRASER Steel Manufacturer of New Glasgow, in the Province of
Nova Scotia and Dominion of Canada, do hereby declare the nature of my inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement;―
The object of the invention is to provide a new and improved marine vessel,
more especially designed for carrying coal, ore, grain or any other similar
material in buik, the vessel being substantial and strong, and arranged to permit
of conveniently loading it with the desued cargo, and of removing the same with
great case and without requiring manual labour, at the same time preventing
the can go from shifting.
The invention consists of novel features and pants and combinations of the
same, as will be fully described hereinafter and then pointed out in the claims
Reference 18 to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding parts
in all the figures
Figure 1 is a plan view of the improvement, aanged as a single propeller
steamer,
Figure 2 18 a longitudinal sectional elevation of the same,
Figure 3 is an enlarged transveise section of the same, on the line 3-3 of
Figure 2,
Figure 4 is a similar view of the same, on the line 4-4 of Figure 2,
Figure 5 18 a plan view of the improvement, arranged as a twin sciew steamer,
Figure 6 is a longitudinal sectional elevation of the same, and
Figure 718 an enlarged transverse section of the same, on the line 7-7 of
Figure 6
Refering to Figures 1 and 2, the vessel is provided with longitudinal bulk-
heads AA, arranged parallel to one another on opposite sides of the middle of
the vessel, said bulkheads terminating at the after end at a transveise bulkhead B
in front of the boiler room C, and the forward ends of said longitudinal bulk-
heads terminate at the collision bulkhead or chain carrier D, as plainly indicated
in the said figures The bulkheads A A rise from the transverse frames E upward
to the deck F of the vessel, the lower edges of the bulkheads resting on
keelsons E, as is plainly indicated in Figures 3 and 4 Transverse bulkheads G
are arranged a suitable distance apart and extend from one side of the vessel to
the other, so us to divide the hull thereof into compartments, one on the outside
of each longitudinal bulkhead A and between two adjacent bulkheads G and
oue between the two longitudinal bulkheads A and between two adjacent
transverse bulkheads G Hatches H are provided for each compartment thus
formed, said hatches being adapted to be closed by covers H' for the outer com-
partments and covers H2 for the hatches between the bulkheads A A, as plainly
indicated in the drawings.
For very light material such as grain, the middle hatch covers H are removed,
so that the middle compartments as well as the outer compartments can be filled;

page_text: but in loading ore or like heavy material, the middle hatches remain covered,
so that only the side compartments are filled with the material.
As indicated in Figure 2, the lower ends of the transverse bulkheads G rest
on a corresponding frame E, so that the entire vessel 18 rendered very strong and
durable, to readily early heavy loads without danger of straining the frame of
which the hull is constructed, it being understood that the longitudinal and
transveise bulkheads act as braces for strengthening the vessel
In the lower part of each bulkhead A there is provided for each side compart-
ment a doo I, adapted to be closed by a gate so that the material stored in the
compartment can be readily passed through the open door into a scoop or bucket J,
located in the corresponding middle compartment between adjacent frames E, to
bring the top of the bucket below the door, as is plainly indicated in Figures 3
and 4 The bucket J is carried by a suitable hoisting and lowering device K, of any
approved construction, for lowering an empty bucket and for 1ausing a filled one
out of the middle compartment, to carry the load to a suitable place of discharge
The bottoms L of the compartments may follow the lines of the frames E,
as indicated in Figure 3, but I prefer to make said bottoms slightly inclined
upwardly and outwardly, as indicated in Figure 4, so that the material contained
in a compartment readily slides by its own gravity through the door I into the
bucket, to avoid shovelling of the material by hand or other means
It will be seen that by the arrangement described, buckets may be let down
simultaneously into each of the middle compartments, for discharging material
from the several compartments into the buckets, and at the same time insuring
a quick unloading of the vessel.
In the arrangement shown in Figures 5, 6, 7, the longitudinal bulkheads A¹A'
extend from the stein to the bow, the engine 100m C¹ being amidships, and the
spaces between the bulkheads in the engine 100m are arranged for use as coal
bunkers or stores The engines are placed between said longitudinal bulkheads
and the sides of the vessel, and the sloping floors L', L' furnish sufficient room
for the shaft tunnels N, as will be readily understood by reference to Figure 7.
Otherwise the construction is the same as above described in reference to Figures 1,
2, 3 and 4. The sloping floors are not essential and can be removed when
light cargoes, such as gram, are carried Struts may be placed between the
bulkheads, to prevent the same from bulging when heavy cargoes ale carried.
As indicated in Figure 3, the bulkheads A may extend from the hatches to the
coamings thereof, but otherwise the bulkheads terminate at the deck.
By the anaugement described, the vessel 18 considerably strengthened for
carrying heavy cargoes, such as one, and the discharge of the cargo is greatly
facilitated The use of the bulkheads makes it practicable to locate the hatches
eloser together, for the purpose of obtaining quick trimming and delivery; and
the bulkheads also prevent the cargo from shifting, so that the safety of the
ship is materially increased Shovelling of the material when unloading the
cargo is entuely dispensed with, consequently the expense of handling the material
when unloading is greatly reduced.
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 18.—
1 In a maine vessel, the combination with the body of the vessel provided
with the keelsons EE and the transverse bottom frames E, of two parallel longi-
tudinal bulkheads spaced a short distance apart, one on each side of the longitu-
dinal centre of the vessel, said bulkheads extending from the transverse bottom
frames to the deck with then lower ends registering with the keelsons, transveise
bulkheads spaced a suitable distance apart and intersecting the longitudinal bulk-
heads, said fiansverse bulkheads extending from one side of the vessel to the other
and from the deck to the transverse bottom frames with their lower ends registering
with certain of said transverse frames, whereby the vessel will be strengthened,

page_text: and side and middle compartments formed, the muddle compartiments extending
below the bottoms of the side compartments to receive a bucket, and doors leading
from the side compartments to the middle compartments above the bottoms of
the same, substantially as herein shown and described
2. A marine vessel provided with two parallel longitudinally extending bulk-
heads on opposite sides of the longitudinal centre of the vessel, and transverse
bulkheads spaced a suitable distance apart and extending from one side of the
vessel to the other and intersecting the longitudinal bulkheads, to form outside
and middle compartments in the hull of the vessel, and doors leading from the
outside compartiments to the middle compartments between the bulkheads, and
aligned hatches for each set of compartiments, located adjacent to one another
in a transverse direction, substantially as shown and described
Dated the 27th day of Duas 1900
A M. & WM CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.