Improvements in the Construction of Single or Twin Boats or Vessels to be Propelled by Screws, Actuated by Human Power, on Seas, Rivers, Lakes, or other Waters.
Year: 1885

page_text: Improvements in the Construction of Single or Twin Boats or
Vessels to be Propelled by Screws, Actuated by Human
Power, on Seas, Rivers, Lakes, or other Waters.
We ANGELO JAMES SEDLEY of the Palatinate, New Kent Road, London,
Engineer, and EDWARD COLE of 71 Bridge Road, Hammersmith, Boatbuilder, do
hereby declare the nature of our invention for "IMPROVEMENTS IN THE CON-
STRUCTION OF SINGLE OR TWIN BOATS OR VESSELS TO BE PROPELLED BY SCREWS
ACTUATED BY HUMAN POWER ON SEAS, RIVERS, LAKES, OR OTHER WATERS," to be
as follows:-
We will first describe the construction of the boats :-
The single boats are for purposes where great speed is required & are fitted with
one or more centre boards in the line of the keel fore and aft and where one only
is fixed by preference about amidship which centre boards can be raised or lowered
at pleasure and further to maintain equilibrium the boat. or vessel is provided with 4*
one or more rigid or elastic outriggers or fins placed outside on each side just
about the surface of the water and these may be made of rigid or elastic materials,
metals wood india-rubber and woven materials may be used partially in the
construction of the said fins or metals only these fins can be made to collapse and
lie close to the sides of the boat or vessel.
The twin boats may have centre boards and fins as above described but either or
both may be dispensed with.
A particular feature of these boats is the width of the keel and kelson being
amidships horizontally about one thirty second part of the length of the boat or
vessel. It has also an upward camber towards each end of one inch in three feet
or thereabouts which is variable according to the length of the boat.
The propulsion is effected by a gimlet shaped screw or screws divided by
preference into three parts, having graduated and differential edges, pitches, areas,
& diameters, six blades are used (by preference) in three screws, each having two
or more blades The screw with the smallest diameter & quickest pitch is placed
on the screw shaft in front, the screw with the largest diameter & slowest pitch is
placed behind & the screw with the intermediate "pitch & diameter" is placed
between the two before described, & there is a clear space between each screw or

page_text: screws on the shaft. These screws are also applicable to ordinary boats & ships &
ordinary screws may be also used for the propulsion of the single or twin boats.
The screws in the single boats are placed astern as usual or at the sides and in
the twin boats astern of each or in the space between the hulls or astern of this
space. These boats may be steered by ordinary rudders but by preference folding
rudders are used and these and the screws may be lifted in shallow water or
over shoals.
These boats have mechanical arrangements similar to those of a tricycle and the
gearing to the main shafts of the screws is effected by chains, rope, belts frictional
or cog gearing. The screw shaft is provided with an universal joint by means of
which the screw may be raised or depressed in the water.
The single boat may be propelled by one or more persons seated in a line fore
and aft but in the twin boats other arrangements may be made. Where conjoint
operation occurs the pedals are suitably connected by gearing or by coupling rods
to act in unison.
•
By means of suitable saddles all the forces of the body may be brought into
operation. The boats may be provided with sails and be built in one or more
parts and the machinery can be arranged to take to pieces for sailing or for
shipment and we claim as our joint invention the various combinations herein
set forth.
Signed this 30th day of November 1805

page_text: UBBOLD
стороной бу DOLOWD,
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Power, on Seas, Rivers, Lakes, or other Waters.
We ANGELO JAMES SEDLEY of the Palatinate New Kent Road London in the.
County of Surrey Engineer and EDWARD COLE of 71 Bridge Road Hammersmith'
Boatbuilder do hereby declare the nature of our invention for IMPROVEMENTS IN
THE CONSTRUCTION OF SINGLE OR TWIN BOATS OR VESSELS. TO BE PROPELLED BY
SCREWS ACTUATED BY HUMAN POWER ON SEAS RIVERS LAKES OR OTHER WATERS
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
We will first describe the construction of the boats.-The single boats are for
purposes where great speed is required and are fitted with one or more centre boards.
in the line of the keel fore and aft and where only one is fixed by preference about
amidship which centre boards can be raised or lowered at pleasure and further to
maintain equilibrium the boat or vessel is provided with one or more rigid or
elastic outriggers or fins placed outside on each side just about the surface of the
water and these may be made of rigid or elastic materials, metal, wood, india-
rubber and woven materials may be used partially in the construction of the said
fins or metal only these fins can be made to collapse and lie close to the sides of the.
boats or vessel-The twin boats may have centre boards and fins as above:
described but either or both may be dispensed with. A particular feature of these
boats is the width of the keel and kelson being amidship horizontally about one
thirty second part of the length of the boat or vessel It has also an upward.
camber towards each end of one inch in three feet or thereabouts which is variable
according to the length of the boat The propulsion is effected by a gimlet or cork-
screw shaped screw or screws divided by preference into three parts having
graduated and differential edges pitches areas and diameters six blades are used
(by preference) in three screws, each having two or more blades the blade with the
smallest diameter and quickest pitch is placed on the screwshaft in front, the blade
with the larger diameter and slowest pitch is placed behind and the blade with
intermediate pitch and diameter is placed between the two before described there
is a clear space between each blade or blades on the shaft-These screw propellors
are also applicable to ordinary boats and ships & ordinary screws may be also used
for the propulsion of the single or double boats The blades may be perforated or
divided where they spring from the boss as shews in figures 5 and 6 or the screw
may be in the form (like a corkscrew) on a shaft shewn in Figure 7 The
propellors in the single boats are placed astern as usual or at the sides and in the
twin boats astern of each or in the space between the hulls or astern of this
space These boats may be steered by ordinary rudders but by preference folding
rudders are used and these and the screws may be lifted in shallow water or
over shoals
The boats have mechanical arrangements similar to those of a tricycle and the
gearing to the main shafts of the screws is effected by chains ropes band frictional
or cog gear.

page_text: The screw shaft is provided with a universal joint by means of which the screw
may be raised or depressed in the water.
The single boat may be propelled by one or more persons seated in a line fore
and aft but in the twin boats other arrangements may be made Where conjoint
operation occurs the pedals are suitably connected by belt band or chain gearing or
by coupling rods to act in unison.
By means of suitable saddles all the forces of the body may be brought into
operation The boats may be provided with sails and. be built in one or more
parts and the machinery can be arranged to take to pieces for sailing or for
shipment.
In the accompanying sheet of drawings,
Fig. 1 shews an outline of a water cycle actuated by four persons P P1 P2 P³
shew the geared wheels on the pedal cranks which by chains actuate the main
driver Mis the main driver driving the propeller by a band SP is the screw
propeller.
Fig. 2 shews a cross section of a single hull boat F is the flexible fin jointed
and falling like a table flap when not in action but rising as shewn on the centre
of gravity on the boat being disturbed F' is a fin which is a hollow vessel
tubular square triangular or boat shaped in section either of these fins can be used
C. C. are centre boards of metal or wood R is the flexible rudder (fully shewn in
Fig. 4) with universal hinges like a Japanese screen.
Fig. 3 shews a twin water cycle actuated as above described.
Fig. 4 is a sectional view of Fig. 3 from middle or centre of boats through the
centre line of the hull and also through the centre line on which the screw propeller
is placed S in the drawings shews the position of the seats or saddles.
Fig. 5. shews a gimlet propeller with hollow or perforated blades on a spiral
shaped shaft p¹ p² p³ p' are the perforations.
Fig. 6 is an end view of Fig. 5.
Fig. 7 is a skeleton corkscrew propeller for small vessels with a single twist
blade and variable pitch end on view.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed we declare that what
we claim is
The various combinations for the purposes herein described substantially as set
forth and shewn in the drawings accompanying this specification.
Dated this 28th day of August 1886.