IMPROVE- MENTS, IN OIL LAMPS POR RAILWAY CARRIAGES, SHIPS' CABINS, AND OTHER PURPOSES
Year: 1858

page_text: LETTERS PATENT to Alexis Jean Dessales, of 13, Rue des Enfants
Rouges, Paris, in the Empire of France, for the Invention of "IMPROVE-
MENTS, IN OIL LAMPS POR RAILWAY CARRIAGES, SHIPS' CABINS, AND OTHER
PURPOSES."
Sealed the 14th August 1858, and dated the 27th February 1858.
COMPLETE SPECIFICATION filed by the said Alexis Jean Dessales at the
Office of the Commissioners of Patents, with his Petition and Declaration,
on the 27th February 1858, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXIS
JEAN DESSALES, of 13, Rue des Enfants Rouges, Paris, in the Empire of
France, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN OIL
LAMPS. FOR RAILWAY CARRIAGES, SHIPS' CABINS, AND OTHER. PURPOSES," 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 I verily believe myself to be the true and first inventor.
thereof:
NOW KNOW YE, that I, the said Alexis Jean Dessales, do hereby declare
that the following Complete Specification under my hand and seal fully de-

page_text: scribes and ascertains the nature of my said Invention, and the manner in
which the same is to be performed, reference being had to the accompanying
Drawings (that is to say):
:-
My improvements in oil lamps refer principally to lamps for lighting railway
and other carriages from the roof, but are also applicable to similar lighting
purposes, such as the cabins of ships, where the lamp is suspended from the
ceiling of the cabin, and the light required to be generally diffused.
I form the oil box circular underneath, but in the centre of which I place
my burner, supported and connected with the oil box by two arms or oil
passages. To the exterior of one of the arms I fix a lever for the purpose of
working or sliding forward a moveable wedge, to which a valve rod is attached.
This valve rod passes from the wedge through an internal tube in the arm, and
terminates in a valve plate at the mouth of the supply pipe. At the outside
of. the valve plate is a spinal spring, which being inside the reservoir presses
upon the valve plate, when the lever is reversed and effectually prevents the
flow of oil to the burners when not required for use. The oil is introduced at
the orifice on the surface of the oil box by moving a slide packed with leather,
which on being returned to its original position closes hermetically the orifice.
The burner is adapted for a flat wick, which is placed on a metal wickholder,
and can be removed or replaced at pleasure.
DESCRIPTION OF DRAWINGS.
Figure 1 represents a transverse vertical section of a lamp with reflector
and lanterns constructed according to my Invention, fitted and adapted to the
roof of a railway carriage.
Figure 2 represents an external view of the lamp. The form of the oil box
is circular. The oil is introduced at the orifice on the surface of the oil box
by means of the slide packed with leather. A, Figs. 2, 3, and 4, which sliding
or working on the plate B, exposes the orifice for the introduction of the oil,
or closes it hermetically. On the arm D is a lever E, intended by its.action
on the sliding wedge H, to which a valve rod passing through a tube I in the
interior of the arm D, to open or close at pleasure the mouth of the supply
pipe according as the lever is turned along the arm or across the burner.
Figure 3 represents a plan, the orifice for the introduction of the oil.
Figure 4 represents the same in section.
Figure 7 represents the wick holder.
Figures 5 and 6 represents a variation of the means of producing the same
effect as explained in Figure No. 2.
Having described the nature of my Invention and the manner in which it is

page_text: performed, I would have it understood that what I claim and desire to protest
by the before in part recited Letters Patent is, -
Firstly, the application externally of a lever on the arm of the oil passage
for the purpose of working a valve plate in the interior the supply pipe, in
such a manner as to allow either of the oil flowing freely to the burner or of
cutting off the supply altogether.
Secondly, the application of a leather packed slide for closing hermetically
the orifice by which oil is introduced to the oil box.
In witness whereof, I, the said Alexis Jean Dessales, have hereunto set
my hand and seal, this Twenty-seventh day of February, in the year of
our Lord One thousand eight hundred and fifty-eight.
DESSALES.
(L.S.)