AN IMPROVED, PADDLE WHEEL TO BE USED FOR PROPELLING VESSELS IN THE WATER.
Year: 1870

page_text: LETTERS PATENT to Adam Wingard, of San Francisco, California,
United States of America, for the Invention of " AN IMPROVED,
PADDLE WHEEL TO BE USED FOR PROPELLING VESSELS IN THE WATER.'
"
Scaled the 12th April 1870, and dated the 26th February 1870.

page_text: NOW KNOW YE, that I, the said Adam Wingard, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of my said Invention, and in what
manner the same is to be performed.
My Invention relates to paddle wheels for vessels which arc driven
through the water by steam or other motive power.
The object which it is desired to accomplish by this Invention is to so
construct and arrange the buckets or floats of a paddle wheel that there
will be little or no loss of power in driving them through the water
occasioned by the pounding-and-lifting-which is supposed to exist when
the paddle wheel is provided with the ordinary transverse floats, and it
consists in constructing the paddle wheel of one or more wheels, each
one of which is provided with arms or spindles secured to a central hub.
These wheels are secured upon a shaft at the proper or required distance
apart. The extreme outer end of the spokes or arms is turned or other-
wise made smaller than the arm itself so as to form an axle, upon which
are placed the floats or buckets. The buckets consist of two central
hubs having three radiating wings standing in such a position that the
angle formed between each two is an obtuse angle, and which I call
tripartite buckets.
In order to give a better illustration of my Invention reference is had
to the Drawings accompanying this Specification and forming a part of
the same, in which Figure 1 is a side view, Figure 2 is a view of one of
the buckets or floats. The same letters of reference indicate identical
parts wherever they occur.
A is the shaft to which the paddle wheel is attached, and with which
it revolves; B, B, B, are three hubs attached to the shaft A at the
proper or required distance apart. Secured in these hubs and radiating
from them are arms C, C, C, their extreme ends being united by a
metal band D, which serves to strengthen and keep the spokes in
their proper position. Other bands may be employed at suitable
distances from the hubs when desired, to give greater strength to the
wheels. The outer end of each of the spokes or arms C is made smaller
than the arm itself, so as to form a journal a of sufficient length to
receive the buckets or floats and the collars which form the journal
boxes. The buckets consist of three radiating wings b, b, b, of the
proper or desired length, united by boxes d, d, at each end; these wings
taper towards their outer end, and are arranged about the hubs so that

page_text: the angles formed by the intersection of any two of the wings will be au
obtuse angle, the whole forming what I term tripartite or three-part
floats or buckets. One of these tripartite floats or buckets is placed
upon the journal a on the end of each of the arms C, so as to revolve
loosely about it, a small nut or projection e serving to prevent the float
from coming in contact with the band or rim D. One or more of these
wheels can be used to form one paddle wheel, but when I employ more
than one I arrange the buckets or floats so that they will alternate,
that is, each float is placed in such a position that it will be between the
floats on the wheel next to it on either side, as shown, thus enabling the
buckets to act upon the entire width of water without piling it up so as
to impede the following buckets, especially as they emerge or rise out of
the water. As the wheel revolves the buckets have no fixed rule or
position, but turn as the motion of the water induces them, but when
they strike the water one of the wings b'acting as a rudder causes the
other two wings to stand so as to present a V shaped opening or trough
to engage the water. As before stated the wings b, b, taper towards
their outer ends, thus allowing them to enter the water with less force
than if they were of equal width their entire length, while after they
have become submerged the greater width of the upper end causes them
to have full force at the exact point where it is most required, that is, in
making the sweep of the lowest part of the circle. At the junction of
the wings with the axle small longitudinal slots are made between the
two boxes upon which the buckets turn, which allow any air which may
become confined in the trough of the buckets by their being suddenly
forced into the water to escape, thus preventing a rebound when the
bucket strikes the water. In emerging from the water the buckets will
relieve themselves of the weight in the trough, the motion of the wheel.
and driving of the waves when the bucket has partly emerged causing it
to revolve and discharge the water, and in suddenly reversing the motion
of the wheel should it be caught when the crank is on the dead center
point the buckets will not impede its movements in any manner, but
will turn to the proper position to act in an opposite direction, allowing
the wheel to be immediately reversed.
In order to secure the wings of the buckets from spreading or moving
from their proper places when burdened with the weight of water
: נוז
1

page_text: By the use of this wheel I claim that a much greater speed can be
imparted to a vessel than can possibly be obtained when the ordinary
wheel with the same amount of power is used. The strain upon the
engine will be equal at all points of the revolution of the wheel, thus
preventing any jar or shaking of the boat which is being propelled, and
consequently allowing the engine to exert the greatest amount of force
it is capable of exerting for the amount of power employed.
Having thus described my Invention, what I claim and desire to
secure by Letters Patent is,-
First. The tripartite or three parted-buckets-or-floats-consisting_of_the_
tapering wings b, b, b, with their boxes d, d, each bucket revolving upon
an axle a, substantially as and for the purpose herçin described.
Second. A paddle wheel composed of one or more hubs B, B, each of
said hubs being provided with radiating arms C, C, and cach arm being
provided with as tripartite bucket similar to that herein described,
substantially as herein set forth.
In witness whereof, I, the said Adam Wingard, have hereunto set
my hand and canl this Tifth day of Tennan AT 1870
Witnesses,
JOHN L. BOONE.
WILLIAM R. BOONE.
ADAM WINGARD. (L.S.)