IMPROVEMENTS IN OBTAINING ELECTRIC CURRENTS FOR LIGHTING AND OTHER PURPOSES
Year: 1884

page_text: and other Purposes.
1 RICHARD ROSE of 72 Leadenhall Street in the City of London Merchant
Shipper do hereby declare the nature of my invention for IMPROVEMENTS IN
OBTAINING ELECTRIC CURRENTS FOR LIGHTING AND OTHER PURPOSES to be as
follows:
This invention has reference to a new system of obtaining motive power for
actuating electro-magnetic machines and applying the currents so generated to the
purposes of lighting and other generally similar uses. In place of the ordinary
mode of actuating electric dynamos, I use a current of air which is caused to
impinge upon wind-vanes which rotate with the slightest current. Thus in applying
the invention to a railway carriage or a train of carriages. A double line of wind
vanes are arranged along the roof of the carriage Each wind vane gives motion
to a horizontal spindle extending from near the margin of the roof towards the
centre. At the extremity of the spindle it carries a worm wheel that gears with
a corresponding worm on a light horizontal shaft extending from end to end of the
carriage. The longitudinal shaft is geared to give motion to the armature of a
small light-running dynamo. This apparatus is arranged in any convenient part
of the carriage, and it need be only of sufficient power to furnish the light required
for the carriage in which it is fitted. The wind-vanes which are new in their
application to this purpose, are made by cutting a square sheet of metal of a
suitable size, in four radial lines from each angle of the plate towards the centre,
but not quite thereto. One angle of each of the triangular parts thus formed is
bent upward and over towards the centre where they are firmly united. Thus
arranged the vane presents four radiating cones to catch the air and when properly
suspended on a central spindle they turn with great velocity while the train is in
motion; and each contributes its quota of mechanical force towards giving the
armature of the dynamo its requisite speed. From the dynamo the electric current
is conveyed to an accumulator which stores up a sufficient quantity to more than
meet the requirements of the train during stoppages. From the accumulator the
current is carried to the lamps in the carriage, and thus each carriage has its own
independent electric arrangement at all times available for use and costless as
regards motive power.
CHA³ S. JOHNS,
Agent for R. Rose.

page_text: and other Purposes.
I RICHARD ROSE of 72 Leadenhall Street in the City of London Merchant
Shipper do hereby declare the nature of my invention for IMPROVEMENTS IN
OBTAINING ELECTRIC CURRENTS FOR LIGHTING AND OTHER PURPOSES and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
This Invention has reference to a new system of obtaining motive power for
actuating electro magnetic machines, or as they are now more generally entitled
dynamo-electric machines; and in applying the currents so generated to the
purposes of lighting and other similar uses Instead of actuating the dynamo-
electric in the usual way; according to this invention a current of air is employed
to obtain the requisite velocity of motion of the armature of the dynamo. Fig. 1,
of the acompanying drawing represents an elevation of an apparatus suitable for
lighting a railway carriage. The wind vane or fan A, which is the prime mover
of the apparatus is fixed to the upper end of a screwed spindle B and projects
above the roof of the carriage just sufficient to give the vane clear play. The
form of vane which has been found to be the most efficient in practice is shown in
plan in Fig. 2, which represents a sheet of metal cut to the figure which will form
the vane. A square sheet of zinc or other suitable metal is cut to the figure
indicated by the lines c, by inscribing a circle within the square. Four radial cuts
are then made from the angles d, to the points e, and the curved pieces f, are cut
out and rejected. The angles d, are then taken up in succession and bent over to
the centre of the plate, where they are soldered to a brass ring through which the
spindle B, passes. When thus arranged the vane presents the figure of four
radiating cones, or trumpet-shaped passages through which the air rushes with
forco and so causes the vane to rotate with great velocity. This form of wind vane
has been found to be the most efficient in practice, but it is capable of being
modified to some extent to suit particular requirements. The spindle B, passes
through the small carrying frame G, and thus the motion of the vane drives the
geared bevel wheels H, the lower one of which H', is fast to the bridge piece J,
which forms a guide to the armature J¹ of the dynamo-electric K. I have found
the small dynamo-electric machine as shown very suitable for the purpose of this
class of lighting. But as this particular dynamo does not form a part of my
invention it is unnecessary to describe it in detail. The dynamo in question is small
and portable, and occupies only a cubic space of about six inches each way. It is
by preference enclosed in a case which is fixed either inside or outside the carriage
as most convenient. The wires from the dynamo are carried to an accumulator
which is placed in any suitable part of the carriage, and from its terminals the
" leads
or conducting wires are carried to the lamps. When the train is in motion
the wind vane or vanes are driven round with great velocity by the impact of the
current of air, and during such motion the current of electricity will be continuosly
passing into the accumulator. The store of electricity thus obtained serving to
"

page_text: supply the lamps during any stoppages of the train at the various stations. In
those cases where it may be necessary to use two or more of the wind vanes
I prefer the arrangements shown in the diagram Fig. 3. Thus if two vanes are
found sufficient I prefer to place them at the front and rear as indicated by the
circles Land M, so that each vane contributes its quota of motion to the longi-
tudinal shaft N, by means of a worm wheel, and worm on the shaft, as is well
understood, or by any other suitable mechanical arrangement. If an increase in
the number of vanes is found requisite then I prefer to arrange them in parall-I
lines as indicated by the circles O, connecting them together by transverse spindles P,
so arranged as to impart rapid motion to the central shaft. By this system of
lighting each carriage carries its own independent dynamo-electric arrangement,
which is at all times available for use and under complete control. The vane or
vanes may be so arranged as to rotate either in a horizontal, vertical or angular
plane as may be found most suitable to obtain the requisito velocity in the
armature of the dynamo-electric machine.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
First. The system or mode of obtaining a current of electricity by means of
a current of air actuating wind vanes or fans, arranged so as to drive a dynamo-
electric machine substantially as hereinbefore described and shown.
Second. The general arrangement and construction of the wind vane or fan
and its connected parts; whereby the air is caused to actuate a dynamo-electric
machine or machines, for the purpose of inducing a current of electricity as herein-
before described and shown or any mere equivalent therefor.
Dated this 12th day of September 1885.