Improvements in and relating to Wind Motors.
Year: 1893

page_text: Date of Application, 11th Sept., 1893-Accepted, 14th Oct., 1893
COMPLETE SPECIFICATION.
Improvements in and relating to Wind Motors.
I, FRANZ BEHRWIND of Habergasse 4, Bamberg, in the German Empire,
Mechanic, 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 :-
This invention relates to wind motors which rotate horizontally and its object is
to provide means for the automatic expansion of the sails when travelling with the
wind and their withdrawal when travelling against the wind.
In the accompanying drawings reference to which is hereinafter made,
Figure 1 illustrates in elevation one form of wind motor constructed to embody
these improvements and
.
Figures 2 and 3 are respectively representations of a plan and section of a modified
form of construction.
Similar letters of reference indicate similar parts where they occur in the
different drawings.
The frame-work of the apparatus illustrated in Figure 1 consists of the vertical
pillars or columns a a which support the cross beams or tubes bb. These beams
carry a bearing c for the upper end of the vertical axis d the lower end of which
bears upon the bush e within the footstep f. Suitable bosses or hubs g and i
provided with radial holes for the reception of the ends of the spokes / are secured
to the axle d. The outer ends of the spokes carry hinges m to which are secured
the frames of the canvas covered wings l. The wings are thus free to move so
that they may occupy positions in which they are folded flat against the spokes, or
they may stand at right angles thereto or in any intermediate position. In the
small view of the end of a spoke shewn in Figure 1 the two extreme positions of a
wing are shewn in full and dotted lines respectively. Stops n' are provided upon
the ends of the spokes and upon the wings to limit the amount of motion. The
means, for instance
power of the wind motor may be transmitted by any suitable
by the pulley or wheel k attached to the axle d.
A modified form of construction is shewn in Figures 2 and 3 where the rotating
axle of the previous figure is substituted by the fixed axle d upon which the spokes
rotate. In Figure 2 the different position of the wings are illustrated when the
apparatus is at work, the wind travelling in the direction of the arrow W. It will
be seen that those wings which are travelling with the wind are blown flat against
the spokes h so that they offer a resistance to the wind and cause the rotation of the
apparatus. The wings which are travelling against the wind are blown open as
shewn and offer little or no resistance. In place of the stops n¹ cords p may be
employed to limit the motion of the wings and these cords may if desired be elastic
to prevent a too rapid movement of the wings when opening. The spokes are also
preferably provided with indiarubber rings o which acts as buffers. Figure 3 is a
representation of a section taken along the line x Figure 2.
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 a horizontal wind motor the combination with the spokes of hinged wings
which are automatically placed in or out of action substantially as and for the
purpose hereinbefore described and as illustrated by the accompanying drawings.

page_text: 2. A horizontal wind motor constructed arranged and operated substantially as
herein before described and as illustrated by the accompanying drawings.
Dated this 9th day of September A.D. 1893.
WILLIAM E. HEYS,
Agent for the Applicant.