Windmill Page: 4 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
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pair of rings 24 being secured to the arms 22 a link 41 to the longer end of a corresponding
near their outer ends. The pairs of rings 23 bell-crank lever 42 mounted upon the cor-
and 24 clamp the inner ends of radial spokes responding end of a bracket 43 fast on the
25 constituting the main supports for the shaft 5. The shorter ends of the levers 42
5 vanes to be described. Connecting the are connected by other links 44 to a sliding 70
spokes 25 at a point about midway of their collar 45 mounted on the shaft 5, and this
length are hoop sections 26, and connecting collar is engaged by the yoke end 46 of a bell-
these spokes near their outer ends are other crank lever 47 the other end of which is con-
hoop sections 27. The hoop sections 26 and nected to a rod or wire 48 which extends
10 aY constitute the supports for the corre- down through the swiveled sleeve 2 and ulti- 75
sponding ends of segmental vanes 28, which mately enters the rod 8, as shown at 49, and
in shape are similar to those generally used passes centrally down through the swivel 9
upon windmills. These vanes have their to a point within reach of an operator sta-
narrower ends connected by pivotal sup- tioned on the ground. Each lever 40 carries
15 ports 29 to the hoop sections 26, while near at the end of its longer arm a weight or ball go
their outer ends the vanes 28 are connected 50 which may be adjusted along said arm as
to straps 30, one end of each strap being desired. The spokes 25 are strengthened by
pivotally connected to the hoop sections 27, brace rods 51 extending from near the ex-
as indicated at 31. The other end 32 of each treme outer end of the shaft 5 to the spokes
20 strap is pivotally connected to a ring 33 of 25 at a point between the ring 27 and the ring 85
the same diameter as the ring made up of the 26. The shaft 5 may be tapered toward its
sections 27. This ring 33 is capable of outer end after passing through the hub 21
movement in a plane parallel with the axis and the brace rods 51 may be fast at the ends
of the wheel and at the same time has im- adjacent to the shaft to a taper sleeve 52
25 parted to it a movement of rotation, so that which will grip the taper end of the shaft go
the vanes may be caused to approach each without the necessity of other fastening de-
other to bring their working faces into a po- vices.
sition nearly at right angles to the direction When the windmill is in the inoperative po-
of movement of the wind currents, or the sition the vanes are all set edgewise toward
30 vanes may be brought with their edges into the wind currents. When the vanes are thus 95
the plane of movement of the wind cur- set on edge to the wind currents the levers
rents, or said vanes may be brought into any 34 are both drawn in a direction against the
intermediate position between these two po- action of the springs 36, which means that
sitions. When the edges of the vanes are the rod or wire 48 has been drawn downward,
35 presented to the wind the wheel is, of course, rocking the lever 47 on its pivot to draw the 100
at a standstill, since there can be no reaction sleeve 45 away from the hub 21, and the
between the wind currents and the wheel weighed levers 40 have been moved with the
vanes. When, however, the vanes are balls forced outward away from the axis of
brought into a position at right angles to the the wheel.
40 direction of the wind currents then the re- Now, let it be assumed that it is desired to 105
active force of the wind will cause the rota- start the wind-wheel in operation, it being
tion of the wind-wheel at a speed and with a understood that the face of the wheel is
development of power depending upon the always presented toward the wind. The
angle with which the working faces of the wire or rod 48 is loosened and then the springs
45 vanes are presented to the wind and also 36 are permitted to act, throwing the ball 110
upon the speed of the wind currents. levers 40 with their weighted ends in toward
In order to adjust the relative positions of the axis of the wheel and the vanes are
the ring 33 and the hoop sections 27, which brought to a comparatively flat angle to the
latter for convenience will hereinafter be wind. The wheel is now caused to revolve
So termed a ring, these two rings are connected by the action of the wind and as it gains in 115
by levers 34, each having one end 35 pro- speed the ball ends of the levers 40 tend to
jecting beyond the face of the ring 27, and move outward away from the axis of the
the end 35 of each lever connected to the wheel against the action of the springs 36
ring 27 by a spring 36. The lever arm 35 is with the result that the vanes are moved
55 provided with a number of perforations 37, toward the edge position to an extent de- 120
and connected to the lever arm 35 through pending upon the speed of the wheel and
any one of these perforations is a link 38 ex- upon the wind pressure. The wheel is there-
tending, and connected to the longer arm fore self-adjusting to the wind since as the
through any one of a number of perfora- speed of the wheel increases the outward
60 tions 39 therein, of another lever 40 pivot- tendency of the balls 50 will react upon the 125
ally supported on the end of one of the spokes springs and so move the vanes toward the
25. It will be understood that there are two inoperative position, and should the speed
levers 40 at diametrically opposite points on decrease the springs will come into action
the wheel, and there are two levers 34. The and move the vanes toward the operative
65 shorter end of each lever 40 is connected by position. 130sa
889,413
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Reference the current page of this Patent.
Tucker, Holland G. Windmill, patent, June 2, 1908; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511701/m1/4/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.