MENTS IN PADDLE WHEELS OR PROPELLERS FOR SHIPS OR LIKE VESSELS
Year: 1884

page_text: I GEORGE THOMPSON DICKINSON of the City and County of Newcastle upon
" IMPROVE-
Tyne Gentleman do hereby declare the nature of said Invention for
MENTS IN PADDLE WHEELS OR PROPELLERS FOR SHIPS OR LIKE VESSELS" to be as
follows:-
My Invention has for its object to so construct paddle wheels or propellers for
ships or like vessels that a very effective and smooth action is obtained in the
propulsion of such vessels-According to my Invention I provide the periphery of
the wheel with helical or screw like blades, the outer part of the said blade or
blades being curved the mid portion being preferably more elevated than the end
portions so that as the wheel is rotated the said blades give a very effective and
smooth action in propelling-I prefer to construct the wheel of a number of
annular frames or subwheels with recesses in their peripheries so relatively
situated as to receive the inner portions of the screw blades and retain them
firmly in their position upon the wheel-The subwheels are maintained at the
requisite distance apart upon a shaft which is or be rotated by the ordinary means.
I may use the said paddle wheels or propellers at the sides of the vessel or at
the end thereof, or both at the sides and the end or at any other suitable part of
the vessel as may be most convenient they being used in pairs each wheel of the
pair having the blades reversely placed.

page_text: COMPLETE SPECIFICATION.
I, GEORGE THOMPSON DICKINSON of the City and County of Newcastle-upon-
Tyne Gentleman do hereby declare the nature of my invention for "IMPROVE-
MENTS IN PADDLE WHEELS OR PROPELLERS FOR SHIPS OR LIKE VESSELS" and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My Invention has for its object to so construct paddle-wheels or propellers for
ships or like vessels that a very effective and smooth action is obtained in the
propulsion of such vessels. According to my Invention I provide the periphery of
the wheel with helical or screw like blades, the outer part of the said blade or
blades being curved the mid-portion being preferably more elevated or broader than
the end portions so that as the wheel is rotated the said blades give a very effective
and smooth action in propelling.
And in order that my said Invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in all the figures.
Figures 1 and 2 represent views at right angles to each other of a paddle wheel
or propeller constructed according to my Invention and Figure 3 is a view of one
of the blades separately. A is the shaft of the wheel or propeller and B are the
herein before described helical or screw like blades. The wheel carrying the said
blades I prefer to construct of a number of annular frames or subwheels C with
recesses c in their peripheries so relatively situated as to receive the inner portions
of the screw blades B and retain them firmly in their position upon the wheel the
fastening being effected by bolts and lugs or in any other suitable way. The sub-
wheels are maintained at the requisite distance apart upon the shaft A as shewn
clearly in Figure 2, and the said shaft is or may be rotated by the ordinary means.
I do not limit myself to any particular method of arranging the body of the wheel
or structure which carries the blades B nor to any particular number of the said
blades nor to any particular method of connecting the said blades to the said wheel
or structure.
I may use the said paddle wheels or propellers at the sides of the vessel or at the
end thereof, or both at the sides and the end, or at any other suitable part of the
vessel as may be most convenient they being used in pairs each wheel of the pair
having the blades reversely placed.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1st For propelling ships or like vessels, a paddle wheel or propeller provided
with helical or screw like blades at or towards its periphery, arranged substantially
as hereinbefore described with reference to the accompanying drawings.

page_text: 2nd For propelling ships or like vessels, a paddle wheel or propeller provided
with helical or screw like blades at or towards its periphery, with the mid portion
more elevated or broader than the end portions, substantially as herein before
described and illustrated in the accompanying drawings.
3rd For propelling ships or like vessels, a paddle wheel or propeller provided
with helical or screw like blades at or towards its periphery, the said blades being
supported by sub wheels or structures secured at a distance apart upon the driving
shaft, substantially as bereinbefore described with reference to the accompanying
drawings.