Improvements in Apparatus for Steering Marine Vessels.
Year: 1893

page_text: Date of Application, 4th Oct., 1893
Complete Specification Left, 21st Mar., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Steering Marine Vessels.
I, JOHN WILLIAM MACKENZIE, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40 Chancery Lane in the County of London, do
hereby declare the nature of this invention, a communication to me from Emil Heyman
and Adalbert Chechon, both of the City of New York, in the County and State of
New York, in the United States of America, to be as follows:-
This invention for Improvements in Apparatus for Steering Marine Vessels, has for
its object to provide an apparatus which shall be simple in construction, effective in
use and permit of shifting the stern end of a vessel both when the same is. being
propelled or in motion or stationary.
This invention consists in the combination with a marine vessel provided with a
transverse channel at the stern end of two polygonal drums mounted in said channel
at the ends of the same, endless chains passed over said drums, paddles or rings
fixed on said chains, which rings or paddles are parallel with the longitudinal axis
of the vessel, and means for rotating the drums.
The drums are driven by means of a sprocket wheel on the front end of each
shaft, a sprocket wheel driven by any suitable power and a driving chain passed
over said sprocket wheels.
The invention further consists in the combination with the endless chains on the
said drums of standards on the bars uniting the chains sliding rings or paddles
guided on the standards racks on the ring or paddles and pinions gearing on the
racks and fixed on shafts mounted on the standards whereby by turning said shafts
said paddles can be moved toward or from the free ends of the standards.
Dated this 4th dor of October 1893
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Steering Marine Vessels.
I, JOHN WILLIAM MACKENZIE, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40 Chancery Lane, London, in the County of
London, do hereby declare the nature of this invention, a communication to me
from Emil Heyman and Adalbert Chechon, both of the City of New York, in the
County and State of New York in the United States of America, and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
This invention for Improvements in Apparatus for Steering Marine Vessels, has for
its object to provide an apparatus which shall be simple in construction, effective in
use and permit of shifting the stern end of a vessel both when the same is being
propelled or in motion or stationary.
This invention consists in the combination with a marine vessel provided with a
transverse channel at the stern end, of two polygonal drums mounted in the said
channel at the ends of the same, endless chains, passed over the said drums, paddles
or wings fixed on the said chains, which wings or paddles are parallel with the
longitudinal axis of the vessel, and means for rotating the drums.

page_text: The drums are driven by means of a sprocket wheel on the front end of each
shaft, a sprocket wheel driven by any suitable power and a driving chain passed
over the said sprocket wheel.
The invention further consists in the combination with the endless chains on the
said drums of standards on the bars uniting the chains, sliding wings or paddles
guided on the standards, racks on the wings or paddles and pinions gearing in the
racks and fixed on shafts mounted in the standards whereby by turning the said
shafts the said paddles can be moved toward or from the free ends of the
standards.
In the accompanying drawings
-
Fig. 1 is a longitudinal section of a vessel provided with my improved steering
device;
Fig. 2 is a plan view of the same, parts being broken out and others in section.
Fig. 3 is a vertical transverse view on the line 3-3 Fig. 2.
Fig. 4 is an enlarged detail view of one of the paddles and its adjusting
mechanism.
Fig. 5 is a vertical transverse sectional view on the line 5-5 of Fig 4; and
Fig. 6 is a horizontal sectional view on the line 6-6 of Fig. 4.
Similar letters of reference indicate corresponding parts.
The vessel A has a longitudinal channel A¹ in which are mounted two polygonal
drums a a over which run endless chains 6 having wings or paddles d secured to the
links of the same. The drums are rotated by any suitable power, so that the vessel
is propelled by means of the said paddles. If desired, the longitudinal channel
may be dispensed with and the vessel propelled by side paddle wheels, or any other
motor for propelling the same may be employed. The vessel is provided at its
stern with a transverse passage or channel B which serves for receiving the steering
mechanism. At each end of the said channel a shaft C is mounted in suitable
supports transversely to the channel and parallel with the longitudinal axis of the
vessel and on each of the said shafts C a polygonal drum D is mounted, on the
inner end of each shaft C is also mounted a sprocket wheel E and over said
sprocket wheels and a sprocket wheel F located on deck, a chain G passes so that
by turning the wheel F in one direction or the other, by hand or by power the
drums D D are rotated. Over the drums D D are passed endless chains H which
are formed of a series of links each having the length of one of the sides of the
polygonal drums D. To each link a paddle or wing J is fastened in some suitable
manner and is suitably braced. The said wings or paddles dip into the water a
greater or less length according to the draught of the vessel. When the drums
are rotated, the wings or paddles are moved lengthwise in the channel B and the
downwardly projecting wings which are in the water acting in the same manner as
the paddles of a paddle wheel, propel the stern end of the ship in one direction or
the other.
In order to adapt the steering device for different loads the paddles or wings are
made adjustable as shown in Figs. 4, 5 and 6. The wing or paddle J is provided
at its top and bottom with pins J projecting from the side edges which pins are guided
in the slots on standards K that are secured on cross pieces I uniting the opposite
links H. A rack M is secured on one surface of the paddle adjacent to each side
edge and said racks are engaged by pinions N fixed on a transverse shaft O
journaled in suitable bearings P on the standards K which shaft is provided at one
end with a head Q to permit of applying a key for raising or lowering it. The
bearings P are provided with screws P' which can bind on the shaft O thus serving
for locking the same in place when required. When a greater dip of the paddles
is required, for example when the ship is not heavily loaded the shaft Q is released
and by means of a key is turned in such a manner as to move the paddle J outward
and then the shaft Ŏ is locked in place by means of the screw P¹ or any other
suitable device. When the ship is loaded rather heavily the paddles or wings J
can be moved toward the inner ends of the standards K by turning the shaft O
and then the said shaft O is locked in place.

page_text: Having now particularly described and ascertained, the nature of my said inven--
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination, with a vessel provided at its stern with a transverse passage,.
of a polygonal drum mounted at each end of said passage, endless chains passing
over said drums paddles on the links of said chains which paddles are parallel with
the longitudinal axis of the vessel, and means for turning said drums substantially
as set forth.
2. The combination with a marine vessel provided with a transverse channel at
its stern end, of a shaft parallel with the longitudinal axis of the vessel at each
end of said channel, polygonal drums mounted on each of said shafts, endless
chains passing over the drums and wings or paddles projecting from the links of
said chains which wings or paddles are parallel with the longitudinal axis of the
vessel, a sprocket wheel on the front end of each shaft, a sprocket wheel on part
of the vessel, and a driving chain passed over said sprocket wheels substantially as
set forth.
3. In a marine vessel, the combination with a polygonal drum and endless chains
passed over the same, of cross bars uniting the chains, slotted standards on the.
cross bars paddles or wings having guide pins projecting into the slots of the
standards, racks fixed on the said paddles or wings, pinions engaging said racks
and a shaft journaled on the standards and carrying said pinions, substantially as.
set forth.
Dated this 21st day of March 1894.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents..