CERTAIN IMPROVEMENTS IN MACHINERY POR PROPELLING
Year: 1864

page_text: PROVISIONAL SPECIFICATION left' by Peter Armand le Comte de Fon-
taine Moreau at the Office of the Commissioners of Patents, with his
Petition, on the 6th October 1864.-A communication from Pierre
Charles Nesmond, residing at 45, Rue des Vieux Augustins, Paris, in
the Empire of France.
I, PETER ARMAND LE COMPTE DE FONTAINE MOREAU, of the General Patent
Offices, 10, Rue de la Fidélité, Paris, in the Empire of France, and 4, South
Street, Finsbury, London, Patent Agent, do hereby declare the nature of the
said Invention for "CERTAIN IMPROVEMENTS IN MACHINERY POR PROPELLING," to
be as follows,,that is to say:
The Invention relates to steam propellers (the steam being produced by
evaporation or by the combustion of a gas capable of producing it without
condensation) being with double action, and differing from the other motive
propellers, either terrestrial, marine, or aerial, 1stly, on account of the draught
from the furnace not being produced by steam injection, but being the result
of the afflux of some part of the air which the vehicle containing the motive
power rapidly displaces or compresses by its progressive forward movement.
This air is introduced into the furnace through openings properly prepared
on the fore part of a closed ash-box set under the grate, and in case
of need on some part of the fire-box.. 2ndly, on account of the steam being
thus capable of being disposed of after having worked as motive power to
ordinary machinery, is conducted out by passing through the chimney stack
up to its orifice, more or less bent backward, by means of a tube entirely

page_text: closed, terminating outside with one or several orifices made in a direction
exactly opposite to the movement of the apparatus, and so prepared as to increase
the forward impulse produced by the mechanism by means of the re-action,
still sufficiently energic, which the half distended steam produces when com-
pleting its condensation into the atmosphere; such arrangements of apparatus
and the effects of their appendices will be hereafter described. This propeller
will not only give to boats and locomotives on railways a greater speed without
increased expense, but will permit of easily transforming engines, such as those
used for agricultural and other purposes by the addition_of_plate board and
tender, into small locomotives capable of running on public roads or streets, by
moving every kind of vehicle for ascending mountains however steep, for
working agricultural and other implements, and for other useful purposes.
To carry out the Invention I prepare on the fore part of the vehicles con-
taining the propellers, and communicating to
to the after part, openings com-
municating with the fire-place and equal by their superficies to of their front
part for the purpose of completely neutralising the resistance of the air. The
gratė must be much reduced, otherwise the consumption of fuel would increase
proportionally, to the increase of speed..
Iconstruct the chimneys in two ways, according to the place; they may be
vertical up to the extreme top, and then bent or elbowed backward in a con-
trary direction to that of the movement, so as to present a short open hori-
zontal tube fitting nearly at right angles with the vertical tube, or the
chimneys may be elbowed from the upper part of the smoke box so as to
direct them always backward in a horizontal direction, or even inclined so as
to terminate close to the ground or water at a distance more or less removed
from their setting point to the tubes which are to conduct outside the re-acting
steam. They vary in size according to the dimensions of the machines, but
only one collector tube is employed for each propeller; but in case of many
steam cylinders being employed I cause them to communicate by branches
with each of them, in order that the receiving in of the steam takes place at
the same point where its expulsion generally takes place. This tube is bent
in the shape of a coil, having its diameter nearly the same as the chimney
through which it runs to the full extent to get out from the top, and con-
tinuing a little further to terminate with two apertures bent in a direction
contrary to the movement or otherwise.