Submerged Current - Motor. Page: 4 of 5

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ings, Fig. 3, or may be sectional, a joint be-
ing formed in the plane of the intermediate
radial arms 4; but I have deemed it unnec-
essary to illustrate this modification, as the
5 advantages thereof will be apparent to those
skilled in the art to which the invention ap-
Bolted or riveted to the hub-plate 3 is a re-
inforcing-plate 12, which in turn is bolted to
io the flange 13 of a collar or sleeve 14, fitted
upon the shaft 1, said collar or sleeve being
held from rotating independently of the shaft
by means of one or more set-screws 15, which
impinge terminally upon the shaft. It will
15 be understood that the elements comprising
the hub of the wheel embodying my inven-
tion are the hub-plate 3 and flanged collar 14,
with the interposed reinforcing plate or disk
12, and that these elements may be secured
20 together in any suitable manner to maintain
the parts of the wheel in their proper rela-
tive positions. Furthermore, extending di-
agonally from the extremity of each arm 4
inwardly to the hub, as from the extremities
25 of the intermediate arms 4 to the terminal
hub, are brace-rods 16, (shown clearly in Fig.
3,) the function of these brace-rods being to
give longitudinal stiffness to the structure.
Also in the drawings I have illustrated end
30 plates or heads 17, by which the extremities
of the water-wheel are closed; but it will be
understood that this feature of the invention,
as well as others hereinbefore mentioned, is
susceptible of modification to suit the condi-
35 tions under which the apparatus is used.
The above-described diagonal disposition
of the blades enables me to employ a large
number of blades in a given diameter of
wheel and to utilize to the maximum extent
40 the force of the water in driving the shaft,
and at the same time by this arrangement of
parts I have provided for the efficient move-
ment of the blades through the water in pass-
ing from and to the point of application of
45 power and therefore have disposed in a great
measure of the element of resistance or back
pressure in connection with devices of this
In Fig. 1 I have illustrated a construction
50 of wheel-housing adapted for use when a per-
manent or stationary arrangement of the
wheel is desired, and by referring thereto it
will be seen that the bearings 2 are upheld by
diagonally-closed beams 18, arranged in the
55 intervals between uprights 19 and serving to
support a top shield or cover 20, whereby the
wheel is protected at its upper side from float-
ing objects. This top shield projects forward
or upstream a considerable distance beyond
6o the front side of the wheel, and extending
downwardly and in the direction of movement
of the water from the front edge of this top
shield is a deflector 21, designed to prevent
the application of the pressure of the water
65 to the portion of the water-wheel above the
plane of its shaft and cause the force of the
water to be applied to the lower side of the

wheel when the latter is intended to be oper-
ated as an undershot wheel. Also the front
or upper end of the case or frame in which 70
the water-wheel is mounted is fitted with an
intermediate pivoted shutter 22, mounted
upon a support 23, rising from the base 24and
having connected therewith suitable operat-
ing devices, which in the construction illus- 75
trated consist of a transverse shaft 25, a
chain or chains 26, extending from the shut-
ter to said shaft, which performs the function
of a drum, an operating-spindle 27, and gear-
wheels for corn municating rotary motion from 8o
the operating-spindle to said shaft or drum.
Also a suitable key 28 may be employed for
facilitating the manual operation of the oper-
When the wheel is to be used in connection 8
with a tidal current, an adjustable deflector
29 (illustrated in dotted lines in Fig. 1) may
be employed, the position a representing that
which is occupied by the deflector when the
current is moving in a direction opposite to 90
that shown by the arrow in said Fig. 1, while
the position b shows that which is occupied
by this deflector when the current is moving
in the direction indicated by said arrow. In
the drawings the base or platform 24 is 95
shown arranged upon piles or supports 30,
suitably embedded in ballast and the bed of
the stream or body of water; but it will be
understood that the construction embodying
my invention maybe used in connection with oo
a barge or other floating support or may be
anchored in any suitable position, according
to the peculiarities of the stream or the con-
ditions of its use.
Any suitable form of lubricating devices 105
may be used in connection with the journals
of the wheel embodying my invention, and,
furthermore, it will be understood that when
the device is used in connection with tidal
currents alone the above-described shutter 22 1 o
may be omitted and also that various other
changes in the form, proportion, and the mi-
nor details of construction may be resorted
to without departing from the spirit or sacri-
ficing any of the advantages of this invention. 1x5
Having described my invention, I claim-
1. A current - wheel having a shaft and
radial arms, cross-sectionally-bowed blades
disposed diagonally with relation to the radii
of the wheel, with their rear edges located 120
contiguous to the periphery of the wheel, said
blades being secured at their front and rear
edges to different sets of radial arms, and
strut-braces connecting the arms near the
front and rear edges of the blades, and lo- 125
cated in the position of chords of the curves
described by said blades to brace said arms
and prevent relative movement of the arms
under the strain of the blades, substantially
as specified. 13c
2. A current - wheel having a shaft and
frame comprising radial arms, cross-section-
ally-bowed blades disposed diagonally with re-
lation to the radial arms and attached thereto


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Hardaway, Robert Early. Submerged Current - Motor., patent, January 23, 1900; [Washington D.C.]. ( accessed April 25, 2019), University of North Texas Libraries, The Portal to Texas History,; crediting UNT Libraries Government Documents Department.

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