IMPROVEMENTS IN ROTARY MAGNETO-ELECTRIC MACHINES
Year: 1865

page_text: LETTERS PATENT to Theodore Faucheux, of 21, Caversham Road,
Kentish Town, in the County of Middlesex, Civil Engineer, for the
Invention of IMPROVEMENTS IN ROTARY MAGNETO-ELECTRIC MACHINES."-
A communication from abroad by Mr. Henry Brandon, Engineer, of
Paris, in the Empire of France.
Office of the Commissioners of Patents, with his Petition and Declara-
tion, on the 18th May 1865, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THEODORE'
FAUCHEUX, of 21, Caversham Road, Kentish Town, in the County of Mid-
dlesex, Civil Engineer, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
ROTARY MAGNETO-ELECTRIC MACHINES," and have petitioned Her Majesty to
grant unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn Declaration that the said Inven-
tion was communicated to us by a foreigner residing abroad.
NOW KNOW YE, that I, the said Theodore Fancheux, do hereby declare
that the following Complete Specification under my hand and seal fully
describes and ascertains the nature of the said Invention, and in what manner

page_text: the same is to be performed in and by the following statement, reference
being had to the Drawings hereunto annexed, that is to say :-
The object of the Invention is to facilitate the collection of the electrical
currents generated in the movable parts of the machine, so as to direct them
immediately through a fixed conductor, and thence to transmit them to a
given point. For this purpose I lead the current from each coil or group of
coils by means of a conducting wire to a piece of metal, the general receiver
of the electricity on the revolving axis carrying the discs, but which is
insulated from the shaft as well as from its bearings, and from all other
objects, except at the point where a fixed insulated conductor is in contact
with the revolving piece of metal in such a way as to unite all the separate
currents into one.
A description of the annexed plan will show how this is accomplished.
A is the shaft or axis carrying the discs; round a part of this shaft near one
end is a cylinder of gutta percha or other substance sufficiently non-con-
ducting C, C, outside which and thus insulated is fixed the piece of metal D
the end of which is also insulated from the cap E by the washer R. The
piece of metal D works in a lubricating box P, which is fixed to the frame-
work B of the machine, but insulated therefrom by the gutta percha or india-
rubber slab C¹; and the edges of this box will be continually in contact with
the piece of metal, whilst its upper part K can be adjusted or tightened by
means of the screw V acting on the intermediate piece M. The current
generated in the coils or discs is led to the piece of metal D along a wire a,
which by means of a female screw is attached to the male screw v and thence
traversing the lubricating box P, and its upper part K may be conducted off
by the wire a¹ to any required point.
Having now described the nature of the foregoing Invention, and the
necessary mode of procedure, I declare that I claim the arrangements as
above described and for the object before described.
In witness whereof, I, the said Theodore Faucheux, have hereunto set
my hand and seal, this Twentieth day of April, One thousand eight
hundred and sixty-five.
1. FAUCHEUX. (L.S.)