Improved Means of Generating Electricity for Buildings.
Year: 1892

page_text: Date of Application, 19th Jan., 1892
Complete Specification Left. 19th Nov.. 1892-Accepted. 18th Mar.. 1893
PROVISIONAL SPECIFICATION.
.
Improved Means of Generating Electricity for Buildings.
SARAH JANE ROLLASON 50 Goldhurst Terrace South Hampstead London N.W.
(no business) do hereby declare the nature of this invention to be as follows:-
The object of my invention is to utilize the wind as a motive power for driving a
dynamo or machine.
Fixed on the buildings is an apparatus with sails having a vertical spindle made
to revolve by the sails attached thereto. Half of the apparatus is shielded (regulated
by the wind) to stop back resistance thereby bringing the whole force of the wind
on the exposed portion of the sails. There is fixed to the spindle a wheel which is
geared to drive a dynamo or machine at any speed required. The electricity
generated can either be stored or used direct.
Dated this 19th day of January 1892.
COMPLETE SPECIFICATION.
Improved Means of Generating Electricity for Buildings.
I, SARAH JANE ROLLASON of 50 Goldhurst Terrace, South Hampstead, in
the County of Middlesex, Gentlewoman, 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 :-
The object of my invention is to utilize the wind as the motive power for driving
a dynamo or machine.
Fixed on the buildings is a wind wheel provided with sails rotating about a
vertical axis. Half of the apparatus protected by a shield (which is automatically
regulated by the wind) to stop back resistance thereby bringing the whole force of
the wind on the exposed portions of the sails. There is fixed to the spindle a wheel
which may be geared or applied to drive a dynamo to generate electricity.
In the accompanying drawings
Fig. 1 is a section of elevation. Fig. 2 a plan of the sails, shield and outer
frame.
Fig. 3 is a section showing the connection of the sails to a portion of spindle c
and the arrangement of the two spindles C and L and the connection of the shield
with spindle L.
Fig. 4 is a section of a portion of spindle C, showing spindle C passing clear
through bearing of the shield down to its own bearing on the bottom portion of
the framework.
The sails A Fig. 1 and 2 being made of wood or other suitable materials are
preferably convex in form and are carried on curved arms b see Fig. 1 and 2. The
numbers required depend upon the size and strength of apparatus.
The arms bare secured to iron bosses provided with lugs. The bosses being
keyed or bolted at suitable distances on spindle C the arms b sails a and spindle
all rotate together when set in motion by the wind. On the concave side of each
sail a there are secured a number of ridges e Fig. 1 and 2 so as to lie at a'small
angle with the horizontal, their upper ends pointing towards spindle c. I have found
the addition of such ridges to be very advantageous and to give increased power in
the working of the wind wheel. The sails a do not extend right up to the spindle C
but between them and the inner edge of each sail a considerable space f is left for

page_text: the wind to pass through. The spindle C carries the whole weight of the wind
wheel with its sails and arms and passes clear through centre of the bearing which
carries the weight of the shield and continues down through the sleeve and
through to take wheel for driving. The sleeve is keyed or bolted to spindle C
and rotates on rollers h in trough which is bolted to bottom cross piece of X the
lower portion of the external framing. The trough j is made deep enough to hold
oil for rollers to work in. Around outer edge of sails A and inside the outer frame
work X is a round frame-work k Fig. 1 and 2 supported and secured on four or
more cross arms bolted to bearings y and carried on rollers h in trougli ; see
Fig. 1 and 4. The trough being screwed down to cross piece X' Fig. 1 and 4.
The top of frame-work k is connected by four or more arms & Fig. 1 and 3 to
spindle. The spindle is carried upwards through the top of apparatus X, the
vane m is secured to spindle 1. The frame-work k spindle and vane m revolve
together. The two sleeves Z and are bolted or keyed to spindle l, the sleeve g¹
carrying the weight of the spindle and vane and the sleeve Z taking the side
thrust. The spindle / passes clear through the trough of Z q' and cross pieces of Z
down below frame-work k² to form a pivot or top centre for the wind wheel. The
bearing O (see Fig. 3) on the top of the wind wheel takes the end of the spindle 7.
and this forms the top bearing of the wind wheel. Fixed from bottom to top of
frame work are boards or other suitable materials, to cover about a third of the
distance round to form the shield for shielding half of the apparatus see k Fig. 1
and 2 to prevent the wind from striking the convex side of sail a thus stopping
back resistance. The point of vane m is set in a line with edge of shield N' Fig. 2
so as to bring the whole force of the wind upon the concave portions of sails. The
Sinall arrow Fig. 2 denotes the direction the wind is supposed to be blowing thus
showing the object of shielding half the apparatus.
As the direction of the wind
changes the vane m regulates the position of the shield and causes it to travel
round sails a until the point of vane m faces the wind again. The weight of the
shield and its spindle and vane is wholly taken by the bearings y and g¹ so as
the friction of the bearings q of the wind wheel is only that due to the weight of the
wind wheel alone. It will be seen that by placing the framing X which supports
the moving parts outside both shield and wind wheel I am enabled to obtain a
lower bearing for the shield as described. This outer framing may conveniently
.take the form of a turret and be placed on the loftiest part of a building.
The wheel on spindle C is geared or arranged to drive a dynamo or machine at
any speed required the electricity generated can either be stored or used direct.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare what I
claim is :-
CLAIMS.
(1) In means of generating electricity for buildings the general arrangement of
wind-mill herein before described comprising a wind wheel rotating round a vertical
axis a shield rotating round the same axis and automatically shifted by means of a
vane and an external supporting framing outside both the wind wheel and the
shield which may conveniently take the form of an open turret substantially
described.
(2) In the apparatus claimed in Claim 1. the arrangement for taking the weight
of the shield with its spindle and vane so that such weight does not come upon the
working spindle of the wind wheel, but is independently supported, substantially as
described.

page_text: (5) In the apparatus claimed in Claim 1. the arrangement of the upper bearing O
of the wind wheel in combination with the spindle of the shield or vane sub-
stantially as described.
Dated this 18th day of November 1892.
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.