Improvements in or relating to Steam or Vapour Generators.
Year: 1896

page_text: Date of Application, 16th July, 1896-Accepted, 24th Oct., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Steam or Vapour Generators.
We, AMEDEE AUGUSTE PHILIPPE of 90 Boulevard Richard Lenior, Paris,
in the Republic of France, Civil Engineer, and GEORGE SHENTON, Copthall
House, Copthall Avenue, in the County of London Gentleman, 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 production of motive force intended for the traction of road vehicles
requires peculiar conditions different from those of motors generally.
For operating machines in general and vessels it is sufficient to produce steam
in sufficient quantity at a regular pressure; for the traction of carriages it is not
so, the effort varies continually according to the load to be drawn, the inclines, the
state of the roads and the startings which may take place upon rapid ascents,
upon a bad road, and with the maximum of load. Under these conditions, the
rate of traction to the load which is 0-030 upon a good horizontal road may have
to rise to 0-200 an effort seven times greater.
It is understood that it would not be practical to transport and to operate a
motor and a generator seven times more powerful, than those which would, be
necessary for ordinary work, and it would be even less practical to have, a motor
force too weak to overpower all the resistances without leaving the carriage in
distress.
It would therefore be of importance to construct a generator, accumulator of
heat, or of force, based upon another physical principle than that of the heat
surfaces, capable of giving steam of variable tension; that is what we accomplish
by our new generator in which heat surface is replaced by metallic mass and by
the energy of the heat generated, and easily regulated.
When moving at a normal traction upon a horizontal level, the tension of the
steam can be from 5 to 6 kilogrammes and this; tension can, rise instantaneously
to 20 and 25 kilogrammes in order to pass up an incline and it can reach, 30
to 40 kgr. and more for starting in bad conditions of the road.
In order to obtain this result we have constructed a generator, very small in
cubic volume, the heating surface of which is less important coefficient, than the
metallic mass thereof which as a good conductor of the heat, forms an accumulator
of caloric which it yields instantaneously at the moment of necessity.
In the annexed drawing
Fig. 1 is an elevation in vertical section of the upper part, and Fig. 14 a
continuation thereof showing the lower part of a generator of 3 horse power able
to develop 10 to 15 horse power instantaneously.
Fig. 2 is a horizontal section through the line 2-2.
Fig. 3 is a horizontal section through the line 3-3.
Fig. 4 is a horizontal section through the line 4-4.
Fig. 5 is a horizontal section through the line 5-5.
Fig. 6 is a horizontal section through the line 6-6.
Fig. 7 is a horizontal section for instance on line 5-5 illustrating.a, modified
form having two concentric series of rods (G) and tubes.
A is the receiver for the steam.
B the escape of the combustion gases.

page_text: heat can be regulated according as the load moves on horizontal, ascending, or
descending grades.
This easy regulation of power will procure great economy even while using a
more expensive combustible than coal and coke.
Our generator is easily dismounted for cleaning or replacing of parts which
compose it, the only pieces to be changed being the iron sleeves at little cost when
corroded by the action of the heat.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed we declare that what
we claim is :-
The mode of construction of our improved generator and accumulator of heat
by the employment of a metallic mass in contact on one side or portions thereof
with the calorific source and on the other side or portions with the water to be
vaporized; such metallic mass being composed of sleeves or equivalents receiving
the direct action of the furnace and transmitting heat to rods traversing tubes,
which receive and absorb the heat of the combustion gases; the whole capable of
operating by mass and surface in order to give the maximum of useful effect
with the minimum of weight and capacity; all substantially as illustrated and
described.
Dated this 16th day of July 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents for Applicants.