Improvements in Means or Arrangements for Projecting Water from Ships and other Vessels for the purpose of Propelling and otherwise Moving them.
Year: 1895

page_text: Date of Application, 11th Jan., 1895
Complete Specification Left, 11th Oct., 1895-Accepted, 11th Apr., 1896
PROVISIONAL SPECIFICATION.
Improvements in Means or Arrangements for Projecting Water
from Ships and other Vessels for the purpose of Propelling and
otherwise Moving them.
I EDGAR SMART of No. 3 Darenth Road Stamford Hill in the County of
Middlesex Civil Engineer do hereby declare the nature of this invention to be as
follows:-
My invention relates to the propulsion and manoeuvring of ships and other
vessels by means of water projected from them and my said invention consists in
the use of a series of two or more steam injectors for imparting a high velocity to
a single stream of water for the said purpose.
According to my said invention I so arrange and connect the several injectors
that the stream of water issuing from the first of the series passes to the other or
to the several others in succession whereby the velocity of the stream so passing
is augmented.
Dated this Eleventh day of January 1895
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Means or Arrangements for Projecting Water
from Ships and other Vessels for the purpose of Propelling and
otherwise Moving them.
"
I EDGAR SMART of No. 3 Darenth Road Stamford Hill in the County of
Middlesex Civil Engineer 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:-
My invention relates to the propulsion and manoeuvring of ships and other
vessels by means of water projected from them and my said invention consists in
the use of a series of two or more steam injectors or ejectors for imparting a high
velocity to a single stream of water for the said purpose.
According to my said invention I so arrange the several injectors or ejectors
that the stream of water acted ou by the steam issuing from the first of the
series passes to and is further acted on by the other or by the several others in
succession whereby the velocity of the stream so passing is augmented.
Figure 1 of the accompanying drawing illustrates in section part of an apparatus
for propelling or otherwise moving a ship or other vessel by means of a stream of
water projected from it the part of the said apparatus illustrated in the said figure
being a portion of the water conducting pipe in which three injectors or ejectors
are arranged in series according to my said invention.
Figures 2, 3, 4, 5 and 6 of the said drawing illustrate diagrammatically in plan
convenient arrangements for the propulsion and manoeuvring of ships and other

page_text: vessels by means of water projecting apparatus consisting of conducting pipes
having steam injectors or ejectors placed in series within them according to my
said invention. In the several figures illustrating the said arrangements the hulls
of the vessels are indicated by broken lines.
In all the figures of the drawing the water conducting pipes or the main portions
thereof are marked a the injectors or ejectors are marked and the pipes by
which steam is conducted thereto are marked c. The direction in which water is
caused to pass through the water conducting pipes by the action of the steam
supplied to the injectors or ejectors when the apparatus is in action is indicated by
the arrows.
In the arrangement illustrated in Figure 2 which is designed to admit of a vessel
being driven either ahead or astern the straight fore and aft portions of the
water conducting pipe a are placed in the same vertical plane as the keel and
are connected by loop pipes de provided at the parts marked f, fgg with valves
(not shown in the drawing) which admit of communication between the said
portions of the pipe a and either of the said loop pipes de being opened or closed.
In each of the said loop pipes is placed a separate series of injectors each series
being supplied with steam by means of a separate pipe furnished with a valvė
(not shown in the drawing) by means of which steam may be admitted to and
shut off from either series. The ejectors in the pipe d are arranged with their
nozzles in the direction necessary to cause water to enter the pipe a at the stem of
the vessel and to be projected from the said pipe at the stern of the vessel as
indicated by the arrows drawn in full lines and the nozzles of those in the pipe e
are arranged in the direction necessary to cause water to enter the said pipe a at
the stern and to be projected therefrom at the stem of the vessel as indicated by
the arrows drawn in broken lines. This arrangement is used as follows:-
When the vessel is required to be driven ahead the valves at the parts ff are
opened and the valves at the parts 9 9 are closed and steam is admitted to the
injectors in the loop pipe d. When the vessel is required to be driven astern the
valves at the parts are closed and those at the parts g g are opened and steam
is shut off from the ejectors in the said loop pipe d and admitted to those in the
loop pipe e.
:―
The arrangement illustrated in Figure 3 is also designed for driving a vessel
either ahead or astern as may be required. The said arrangement is similar to
that described with reference to Figure 2 with the exception that the fore portion
of the water conducting pipe a is bifurcated the mouths of the two branches being
situated one in each bow of the vessel.
In the arrangement illustrated in Figure 4 which is also designed for driving a
vessel either ahead or astern two pairs of water conducting pipes a a arranged near
the sides of the vessel are employed one pair being near the bows and the other
near the stern which pipes are so curved that both their inlet and exit ends open
at the sides of the vessel. In each of the said pipes a series of ejectors is placed
the nozzles of those in the forward pair of pipes being in the direction necessary
for driving the vessel ahead and those in the other pair being in the direction
necessary for driving it astern.
Figure 5 illustrates an arrangement for use in manoeuvring vessels the said
arrangement consisting of two sets of main water conducting pipes connected with
loop pipes having ejectors mounted within them and furnished with valves (not
shown in the drawing) as described with reference to Figure 2 the said two sets of
pipes being placed transversely in the vessel one in or near the bows and the
other in or near the stern. By means of the said arrangement streams of water
may be simultaneously projected from the port side near the bows and from the
starboard side near the stern as indicated by the full line arrows or vice versa as
indicated by the arrows drawn in broken lines the vessel being thereby turned in
either direction according to requirements. Or the vessel may be otherwise
manoeuvred by causing streams of water to be projected on one side only both
from the apparatus near the bows and from that near the stern or by causing a

page_text: stream of water to be projected only from the apparatus near the bow or only
from that near the stern.
Figure 6 illustrates a modification of the arrangement illustrated in Figure 5.
for use in manoeuvring vessels. In the said modification the two sets of apparatus
consist each of straight water conducting pipes each of which pipes has mounted
within it a series of injectors or ejectors those in one pipe having their nozzles
turned to the port side and those in the other pipe to the starboard side similarly
to the ejectors in the arrangement illustrated in Figure 5. Where as illustrated
in the said Figure 6 the two series of ejectors in each pair of water conducting
pipes are supplied with steam by branch pipes from one main pipe the said branch
pipes are furnished with valves to provide for steam being admitted to one series.
and shut off from the other according to requirements.
Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed I would observe that I
make no general claim to the use of steam injectors or ejectors singly for pro-
pelling and otherwise moving vessels and that I do not limit myself to the mere
arrangements hereinbefore described but I declare that what I claim is :-
The improvements herein before described in means for propelling and otherwise
moving ships and other vessels by projection of water from them which improve-
ments consist in the arrangement in a water conducting pipe of a series of two or
more steam injectors or ejectors substantially as and for the purpose hereinbefore
described.
Dated the Eleventh day of October 1895.
W. T. WHITEMAN,
Agent for the Applicant.