An Improved Wind Motor.
Year: 1896

page_text: Date of Application, 22nd Dec., 1896-Accepted, 13th Feb.. 1897
An Improved Wind Motor.
I, REUBEN BROADBENT, of Murray Street, Gawler in the Province of South
Australia, Gentleman do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
Motors hitherto constructed have usually had their working parts arranged in
such a manner that the wind acting upon the sails of the appliance imparts a
rotary motion to a spindle on which a crank is arranged. The said crank being
in direct and immediate communication with the pitman of a pump or other
appliance imparts motion thereto. It is found however in practice that the force
of the wind is frequently insufficient to maintain the motor in work and that the
direct strain upon the crank impedes the progress of the inachine to such an
extent that the sails are frequently unable to complete the revolution and to
gain the full effect of the stroke unless a very large sail area is provided.
The special objects of this invention are to arrange such intermediate gearing as
will cause the lifting strain to be more economically distributed, thereby enabling
the motor to continue working with comparatively slight wind and small sails, to
provide a means whereby the length of stroke may be automatically adjusted to
suit the variations of wind pressure, & to provide a means whereby a quick return
stroke may be given to the motor, particularly when used for pumping water.
In order to achieve the first object of this invention, the spindle which carries the
sails is provided with a worm wheel which gears into a tangent wheel from whence
motion is obtained by means of a crank or eccentric acting upon a suitable bridle
or pitman which is attached to the rod of the pump or other appliance and for the
purpose of obtaining the second object of the invention I arrange a bell crank
between the pitman or bridle and the rod of the pump or other appliance and by
means of a wind cup and lever device connected with the said bell crank, the wind
force according to whether it is strong or light acts upon the bell crank and by
altering the relative positions of the fulcrum points correspondingly decreases or
increases the length of leverage on one side of the fulcrum, thereby giving an
increase or decrease of movement to the other extremity of the bell crank to which
the connecting rod of the pump or other appliance is attached. In order to
achieve the third object, instead of driving the pump rod from a disc or crank as
herein before stated I use in lieu thereof a suitably constructed cam or cams which
allow the plunger rods or other equivalent gearing to descend quickly and freely
after the upward stroke has been completed.
That the invention may be clearly understood I will now proceed to describe
the same in detail having reference to the accompanying illustrations, in which,
Figure 1 represents a side elevation of the appliance;
Figure 2 section of the same;
Figure 3 a front view partly in section;
Figure 4 side elevation showing application of automatic stroke regulator;
Figure represents a side elevation of the wind motor, sundry parts being
removed therefrom so that the drawing may not appear complicated;
Figure 6 outline showing alternative arrangement of cams.
Similar letters of reference are used to denote like parts wherever they occur in
he drawings.
A is the main casting and is provided with suitable bearing bosses at B within
which the spindle C revolves. Sails of any well known make are provided at D.

page_text: E is a worm wheel securely fastened to the spindle C. F is a tangent wheel
which is attached to a spindle G, the said spindle being placed at right angles to
the spindle C above mentioned. The tangent wheel Fis so arranged that its teeth
engage and are engaged by the threads of the worm wheel E. "Attached to the
spindle G and at either end thereof and preferably outside of the casting, disc
plates such as H are fastened and are provided with crank pins J as shown in the
drawings. K is a bridle or pitman which works from the crank pins J and is
attached to any convenient connecting rod K¹ by means of a pin L as will be well
understood. The connecting rod passes through and may be guided by the lower
: part of the main casting A. M is a socket which may be fastened to a frame or
standard and is provided with ball bearings such as N. This socket forms a
convenient support on which the main casting is revolubly arranged and takes its
bearing upon the balls N above mentioned. O is a tail rod having a vane O
attached thereto so that the sails of the motor may be directed and maintained in
'the best position to receive the force of the wind. In Figure 4, P is a tee-shaped
lever, the upper eud of which is attached to a wind cup Q, one of the smaller arms
of the lever is provided with a spring or is weighted at R, the other end is
provided with a pin S which works into a slot T in the upper arm of the bell
crank T, the lower arm of the said bell crank being connected with the rod of the
pump or other appliance. The whole bell crank works upon the fulcrum pin T.
One end of the bridle or pitman engages the bell crank T by means of a pin or
slide block U which works in the slot T', and a link V is provided for the purpose
of maintaining the distance between the pin S on one end of the tee-lever Pand
the extremity of the bridle or pitman K, the said link may be adjusted by means
of nuts as shown.
In the drawings I have shown disc plates on either end of the spindle G, but it
is to be distinctly understood that cranks, eccentrics or other equivalent gearing
inay be used in lieu of the discs without departing from the nature of my invention.
In like manner it is to be understood that the tangent wheel F may be arranged
below the worm wheel E or in such other position as may be convenient.
The action of the motor is as follows:-
By means of the vane O' the main casting is so directed that the wind engages
the sails D and causes the spindle C to revolve. The worm wheel E being
fastened to the spindle C also revolves therewith and in turn imparts motion to the
tangent wheel F so that the disc plate H being attached to the common spindle G
receives rotary motion therefrom. It will therefore be seen that by means of the
bridle or pitman K connected to the crank pins J of the revolving disc plates H,
vertical motion may be imparted to the pump rod K or other appliance as
indicated in the drawings.
It
It will also be seen that by the interposition of the worm wheel E and the
tangent wheel F the driving spindle C necessarily makes several complete
revolutions to each complete motion of the pitman K and the working strain
being thus distributed the motor can be maintained at work with less wind than
would be the case if the pitman received a direct strain from à crank or eccentric
in immediate communication with the main spindle in the ordinary manner.
will further be seen that by the interposition of the weighted tee-lever P, the
link V and the bell crank T connected with the bridle or pitman, the length of
stroke will be varied by the action of the wind acting upon the wind dise Q,
thereby altering the relative position of the fulcrum points T and U.
Referring to Figures 5 and 6-
A is the main casting, having bearing bosses at B, within which the spindle C
revolves by aid of any convenient sails. E is the worm wheel, securely fastened to
the spindle C. F is a tangent wheel which is attached to a spindle G, the said
spindle being placed at right angles with the spindle C above mentioned. The
tangent wheel F is so arranged that its teeth engage and are engaged by the
threads of the worm wheel E. Attached to the spindle G I arrange the cam H
the said cam may be single or double ended, or, several separate cams may be used

page_text: as shown in the alternative sketch Figure 6. K is an end link which is attached
to any convenient connecting rod K', and works vertically between the lugs K',
and within the guide K, which is suitably arranged upon the main casting. Kis
a roller bearing mounted upon the connecting link K' and so arranged that it
comes immediately above and in the path of the cam or cams H¹. The pin K'
which carries the roller bearing K is arranged within a slide bed K³, a spring K
being provided for the purpose of keeping the bearing in position as shown. The
end link K is preferably slotted or recessed at K³, so that it will clear the
spindle G. A buffing spring X or other equivalent is added to the appliance
where convenient so as to relieve any jar or knock which might be caused by the
fall of the plunger. The action of my appliance may be briefly described as
follows:-
When the sails upon the main spindle C transmit motion by means of the
intermediate gearing above specified to the spindle G, as will be well understood,
the cam H is caused to revolve in unison therewith, and in so doing lifts the end
link K' by means of the roller bearing K until the extremity of the up stroke is
reached, after which the weight of the end link and connecting rods causes the
gearing to descend by gravitation as soon as the end of the cam clears the roller.
The operation of lifting the plunger is repeated as the cam continues revolving.
A buffing spring or plate of indiarubber or other suitable material may be applied
where necessary or convenient to relieve the jar of the descending plunger. If so
desired, the plunger may be connected to a weight and lever device (such as Y Z)
Figure 6 as will be well understood from reference to the drawings.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In an improved wind motor, a worm wheel such as E attached to the main
spindle C and a tangent wheel such as F, the said tangent wheel being arranged
so as to engage and to be engaged by the worm wheel so that motion obtained
from the wind sails may be imparted through the said worm wheel E and tangent
wheel F to a crank eccentric or disc plate such as H, substantially as described
and illustrated.
2. In an improved wind motor, a bell crank such as T, one arm of which is
connected to the bridle or pitman K, the other end attached to the rod of the
pump or other appliance as shown, in combination with a link such as V and
a weighted tee-lever such as P, the said lever being provided with a wind cup such
as Qas and for the purposes set forth.
3. In a wind motor, a cam or cams (such as H¹) attached to a revolubly mounted
spindle which is actuated by wind power, and an end link (such as K') attached to
a connecting rod or equivalent thereof, provided with a roller bearing device (such
as K, K7) constructed and arranged substantially as described and illustrated, as
and for the purposes set forth.
4. In a wind motor as herein described, a slide or bed (such as K³) for the
reception of the pin which carries the roller bearing, and a spring (such as K') for
governing the position of the latter, substantially as described and illustrated."
5. In a wind motor as herein described, a buffing device (such as X) or
equivalent thereof.
6. The herein specified improvements in wind motors, substantially as described
and illustrated, as and for the purposes set forth, as a combination of parts.
Dated this 21st day of December 1896.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.