Improvements in Boat Propulsion and the like.
Year: 1895

page_text: Date of Application, 18th Nov., 1895
Complete Specification Left, 17 h Aug., 1896-Accepted, 18th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Boat Propulsion and the like.
WILLIAM TURNER LORD Stamford Brook Villa Hammersmith London W.
Architect do bereby declare the nature of this invention to be as follows:-
I form levers with parallel bars or other suitable arrangements so that in the
case of boat paddles or sculls, the blades are held at right or other suitable angles
to the length of the boat and the power is thereby applied more fully in the
direction required, and not in the varying directions as now, which expends a large
part laterally. I also arrange to feather. Concisely stated it is the application of the
principle of the bar parallel ruler, the blade being combined with one of the bars
at outer end of a double shafted oar so as to work at right angles to the boat
throughout the stroke, and the feathering is done by universal joints or other
suitable means.
Dated this 18th day of November 1895.
WM. TURNER LORD.
WILLIAM TURNER LORD Stamford Brook Villa Hammersmith London W.
Architect do bereby 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 :-
Paddles are made in such a way as to hold the blades at about right angles to
the boat all through the stroke, this is done by utilizing the principle of the bar
parallel ruler, and in most cases combining with it one or more universal joints, so
as to enable the main shaft, which carries the blade of the paddle, to be revolved,
for feathering. The Figures 1, 2 & 3 in the drawing (in which the same parts
have the same reference numbers) will make this apparent: R is a rowlock of
suitable shape (some forms of which are shewn in Figures 4 & 5) which gives free
movement every way, whilst holding the bars parallel: this is also maintained by
the parts E E. F F and G G G.
In Fig. 1. A is a handle the centre pin of which works in a sleeve or socket in E.
and is connected by a universal joint H to the shaft C. at the outer end of which
is another universal joint H. a pin from which, in this case, passes through a sleeve
or socket on G. and the paddle blade being fixed to this pin, moves with it, aud
the shaft C. and handle A. in feathering: the shaft B is connected by suitable
joints to the outer ends of the bars E & G.
Fig. 2 is a modification, in which the shaft C. is carried by and revolves in the
sleeve J. this is connected to the shaft B. by one or more bars F and no universal
joint is required inboard the outboard parts are the same as in Fig. 1.
In some cases it may be desirable to make the paddle feather without revolving
the handle, in which case it can be done by binging the blade in the middle of its
breadth, to the edge of G as shewn in the outboard part of Fig. 3. this would

page_text: enable it to fall flat as it skims the water on the back stroke, whilst on the forward
stroke it would be kept vertical by the pressure of the water on its face, and a
suitable stop can be used to prevent it turning too far. Fig. 3 also shews one way
of using the system in a face to front position, this is done by jointing the shafts at
the rowlock and pivotting the jointed parts in such a rowlock as is shewn in Fig. 5,
which rowlock has guide rods M M upon which the guides L L run, upon which
guides the rods K K K K. Fig. 3 are pivotted, the other ends being pivotted in
any suitable way to the shafts of the paddle, so that when the inboard part is pulled
from front to back, the outboard end also moves front to back against the water,
and the boat is propelled the reverse way. Fig. 5 is a face view of the above
rowlock, in which O is a frame in which the twin paddle shafts B and C are
pivotted at P. P. to allow the horizontal movement of the paddles and also to control
the parallel action of the apparatus. In the ends of this frame O. are fixed or
pivotted the rods M M. which are carried by the supports N N and QQ: these
rods M M serve as guides for the slippers or guide blocks L L. which have pivots
or pins upon which the ends of the connecting rods K K K K in Fig. 3 work.
The centre part of Fig. 5. from N to N, is equally applicable to the paddles in
Figs. 1 and and becomes part of them when so used.
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. Paddles which keep the blades square (or thereabouts) to the boats
length.
2. Paddles which keep the blades square with the boat and permit of
feathering.
3. Paddles as herein set forth.
WM. TURNER LORD.