Improved Means for the Propulsion of Ships or such like Crafts.
Year: 1888

page_text: Improved Means for the Propulsion of Ships or such like Crafts.
I, JOSEF STENARD senior a citizen and resident of the City of Troy in the County
of Rensselaer and State of New York one of the United States of North America,
Manufacturer 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 present invention relates to that class of mechanical appliances which are used
for the propulsion of ships and similar water craft.
In carrying out my invention, I place two tubular slides, one on each side of the
stem, within the hold of the ships. These are arranged parallel to each other and
below the water line. Proper guides are provided in which these tubular slides move
endwise. Through the whole length of each of these tubular slides passes a rod
adapted to move endwise in the said slide. Upon the inner end of this slide is a box
or trough in which, in proper guides reciprocates a coupling block or cross head. In
this trough or box work two metallic stops, one at each end, and adapted to be pulled
out of and pushed into said trough. To produce this motion, each stop has a long
stem. Between these stoms is a proper support to which is pivoted an oscillating
lever. The stems work in either end of this lever, in slots provided for that purpose.
The levers are loose on the said stems but are connected to the stops by means of
helical springs wound round the said stems. Upon each end of the lever is a friction
roller. These rollers are arranged on opposite sides of the lover. I also provide an
inclined metallic guide, so arranged that when in one position, it will so guide one of
said rollers, on said lever, that the end to which said roller is attached, will be
deflected towards said box or trough, and one of the metallic stops pushed into said
trough. But when said metallic guide is reversed, it will push the other end of the
lever to the trough, pushing the stop at that end into the trough or box and pulling
the first named stop out, on account of the tilting motion of the fever.
Upon the other and outer ends of tho tubular slides aforesaid, are formed projections.
This end of the slides extends without the ship into the water, and the projection of
cach slide extends still further in the water in the same line as the slide. The slides
are parallel with each other, and parallel to the water line of the ship. To the outer

page_text: end of these projections are hinged short stems, one stem to each projection, on which
is mounted a disc shaped paddle. Upon each of these paddles, and on the same side
with the said stem, is attached a short bracket, beside the said stem which short
bracket is pivotally attached to a short bar or link. This link is attached by a hinge
joint, to the outer end of the rod which moves in the said tubular slide, so that said
link connects said bracket and said rod. Within the ship is placed an oscillating
lever, centrally pivoted. This lever is oscillated by two steam engines whose pitmen
are attached to said lever, one on each side of the said central pivot. To each end of
this lover is attached a connecting bar which connects it with the reciprocating
coupling blocks or cross heads within the troughs or boxes on the inner ends of the
tubular slides. The whole mechanism to be constructed as herein illustrated in the
drawings.
Figure 1 is a plan view of the mechanism of my invention, and the outline of the
stem of a ship.
Figures 2, 3 and 4 are detail views of the outer end of the tubular slide, the paddle
in various positions, and part of the accompanying mechanism.
Figures 5 and 6 are axial sectional views taken on different angles illustrating the
trough or box on the inner end of the tubular slide.
Figure 7 illustrates the lever which as before described, works the stops in said
trough or box.
of figure 5.
Figure 8 is a section taken on the line
Figure is another sectional view taken on the line y', y' of figure 5.
A, A, A and A respectively designate the ends and sides of the said trough or
box. N, N are the reciprocating heads which move in said troughs or boxes.
F, F the said tubular slides.
I the rods moving in said tubular slides. The inner ends of these rods are rigidly
attached to the reciprocating heads N.
G is the paddle on either side of the stem.
F is the projections on the ends of said tubular slides, and 1', the stem by which the
paddle is hinged to said projection.
P the brackets upon said paddles, and R the link connecting the said bracket P
and the said rod J.
T and Tare the two metallic stops working in and out of the said box or trough,
the mortice in which they work.
and
U is a support upon which is pivoted the oscillating lever S. This oscillating
lever S which is pivoted at s, is constructed with the slots c, c, and the rollers 1, P.
U, U', are the stems of the stops T and T", which pass through the slots c, and c of
the lever S.
fand are the helical springs wound around the stems U, U¹, and connecting the
lever S and the stops T and T.
S is the inclined guide which controls the motion of the lever S.
V, V designate the guides in which the reciprocating heads N runs.
designates the brace by which the slides are held in proper position.
Y designates an oscillating lever pivoted at o, within the hold of the ship. The
cylinders Z, Z connected by the rods X, X' drive this lever. K and K, are the bars
which connect the lever Y and the reciprocating heads N. These heads are connected
to these bars by the bolts m. w is the guide in which the slide F runs when it is
desired to move the ship forward, the inclined guide is placed in such a position that
it will push in the stop T into the box or trough. Then when the steam is let on and
the lever Y begins to move, it will by means of the bars K push the cross head N
forwards until it comes against the stop T. Through this part of its motion it will
only bave moved the rod I, which extending without the tubular slides as illustrated,
will have turned the paddle G from the position illustrated in Figure 2, to that
illustrated in Figure 3. Then the cross head N resting upon the stop T, will carry
the rod I, tubular slide F and paddle G through the remainder of its stroke pushing
the paddle with its full breadth against the water without the ship, but when the
lever Y makes its return stroke, it will move only the rod I, until the head N comes

page_text: against the end A of the box or trough. Through this part of the motion the paddle G
will, by the drawing in of the rod I be returned to the position illustrated in Figure 2.
Through the remainder of this stroke the tubular slide will be drawn back to its first
position so as to be ready for another stroke. This occurs alternately on opposite sides
of the ship, and so the ship is propelled forward. To back the ship, the guide Sx is
reversed so that the other end of the lever will be deflected, and the stop T pushed in.
If while this motion is being made, the head N should press against the stop T, the
levor S will expand the spring f, until the pressure is removed and then the springf
will by its resistance draw out the stop T. When the stops have thus altered their
places, the motion of the paddle will be reversed, and so the ship will be moved
backward.
In Figures 10, 11, 12, 13, 14 and 15 is illustrated a modification of my invention.
In this the stops are designated by c and c³, the reciprocating cross-head by M, the
sides of the box or trough by A, B, A, B¹. The guide in which the cross head M
moves is designated by i, the Vs moving in those guides by d'. The other parts
which it has in common with the first described example of my invention, are similarly
designated by the same letters of reference. But instead of the oscillating lever S
heroinbefore described, there is provided a triple armed lever H, H, H", which is
pivoted to the bottom of said trough or box at I and has its arms Hand H working
on either side of the partition J. To these arms are attached respectively the heads D
and D', which move in the segmental grooves L and L'. Each of these heads has a
slanting face, which works on the rounded bottom of the stop. To let the one stop
down and raise the other, the lever H is turned one way, and to raise the one stop and
let down the other, it is turned the other way. Otherwise this device is applied and
used as herein before described.
Having now fully described and ascertained what tho nature of my said Invention
is, and how the same is constructed and used, I do hereby declare that what I claim
as my Invention and desire to securo by Letters Patent is,
1. The combination with the oscillating lever Y pivoted as specified, within the hold
of a ship, and means for moving the same substantially as described, of the bars K,
connecting said lever Y with the reciprocating cross-heads N, the said reciprocating
cross heads N moving in the boxes or troughs A, A, A, A, the said boxes or troughs,
attached to the ends of the tubular slides F, F, the stops T and T, working in said
troughs or boxes. The inclined guide S*, the lever S having slots c and c pivoted at s,
and having rollers », r, the stems U, U attached to said stops, and the springs f
wound round said stems and connecting said lever S, and said stops, all substantially
as and for the purpose set forth.
2. The combination with the tubular slides F, F, the rods I moving therein, and
the projections F, of said slides of the stems P, connecting said projections and the
paddles, the paddles G connected to said slides as aforesaid, the brackets P¹ upon said
paddles, and the link R connecting said brackets and the rods I, all substantially as
and for the purpose set forth.
3. The combination of the mechanism hereinbefore described and claimed with a
ship or other water craft, for the purpose of propelling the same, substantially as
hereinbefore described.
Dated this 21st Just A 1000
T. R. SHILLITO,
89, Chancery Lane, London, W.C.,
Agent for the Applicant.