New or Improved Steam Generating or Vaporizing Apparatus.
Year: 1893

page_text: Date of Application, 9th Oct., 1893
Complete Specification Left, 25th June, 1894-Accepted, 28th July, 1894
PROVISIONAL SPECIFICATION.
A New or Improved Steam Generating or Vaporizing Apparatus.
I ALPHONSE REIS, of 30 Boulevard Léopold Antwerp, in the Kingdom of
Belgium, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is the construction of a rapid vaporizing apparatus,
enclosing within it a reservoir for steam and affording on its outside surface the
largest possible amount of heating surface while having inside an equal amount
of heating surface, giving an extended passage for the water and steam whereby
the water is prevented from being unduly carried away, and also the apparatus
can be readily cleaned by means of a scraper having cutters or wings with a profile⚫
corresponding to the coiled tube threads.
The improved apparatus is composed of a helicoidal or coiled tube forming
hollow wings and placed round a straight taper tube turned on its outside and
introduced into the hollow formed by the threads or coiling of the coiled tube, the
inside of the coil of which latter is tapered in conformity with the straight and
tapered tube in such a way that the straight tube is kept steam tight by being
encased in the coiled tube, thus forming a vaporizing or steam generating apparatus
the inner surface of which approximately is equal to the outer or heating surface,
and by such arrangement practically attaining the largest amount of heating
surface, the inner surface of which gives at the same time, owing to such
construction an extended passage for the water to be vaporized, such water being
forced to circulate between the two sides of the coiled tube and likewise heated in
a passage way so extended, that no water can be carried away with the steam, the
feeding being proportionate to the heating surface of the apparatus.
The straight tube not only serves as a complementary part of the steam passage
way but likewise as a steam reservoir, in such a manner that the apparatus forms a
complete steam generator of the greatest simplicity, of restricted and compact
dimension.
The conical shape of the straight tube serves for two purposes, firstly, it is more
easily capable of being inserted and taken out as often as the vaporizing coil
requires cleansing, and secondly, to give the passage way a sectional area increasing
from where the water enters up to the exit of the steam.
The water entrance and steam exit may be effected by any convenient tubes
placed both at the same extremity of the apparatus.
In order to strengthen the coiled tubes and prevent their giving way from their
proper position, ribs are applied which are outwardly interpolated between the
wings or threads.
Dated this 9th day of October 1893.
K. HADDAN,
Agent for the Applicant

page_text: COMPLETE SPECIFICATION.
A New or Improved Steam Generating or Vaporizing Apparatus.
I, ALPHONSE REIS, of 30 Boulevard Léopold, Antwerp, in the Kingdom of
Belgium, Manufacturer, 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 object of this invention is the construction of a rapid vaporizing apparatus
enclosing within it a reservoir for steam and affording on its outside Burface the
largest possible amount of heating surface while having inside an equal amount
of heating surface giving moreover an extended passage for the water and steam
whereby the water is prevented from being improperly carried off, and also capable
of being readily cleaned by means of a scraper having cutters or wings with a
profile corresponding to the cross section of the spiral passage way through which
the water and steam pass.
The improved apparatus is composed of a tube of which the surface is composed
of one or more helicoidal hollow flanges. The interior of this tube therefore
presents a free passage way from one end to the other having on its wall one or
more helicoidal grooves. The said tube is so made that the said free passage way
is tapered, and into this passage is placed a straight taper tube turned on its
outside and introduced into the outer tube, the inside of which latter is tapered in
conformity with the straight and tapered tube in such a way that the straight tube
fits therein and forms a base for the aforesaid helicoidal groove or grooves which
now become a spiral passage way of which the inner vaporizing surface is
substantially equal to the outer thus forming a vaporizing or steam generating
apparatus the inner surface of which approximately is equal to the outer or heating
surface, and by such arrangement practically attaining the largest amount of
heating surface, the inner surface of which gives at the same time, owing to such
construction, an extended passage for the water to be vaporized, such water being
forced to circulate between the two sides of the helical passage way and likewise
heated along so extended a way that no water can be carried away with the steam,
the feeding being proportionate to the heating surface of the apparatus.
The straight tube not only serves with its exterior surface to form a comple-
mentary part of the steam passage way aforesaid but likewise its interior serves
as a steam reservoir, in such a manner that the apparatus forms a complete steam
generator of the greatest simplicity and of restricted and compact dimensions.
The conical shape of the straight tube serves for two purposes, firstly, it is more
easily capable of being inserted and taken out as often as the vaporizing coil
requires cleaning, and secondly it permits of giving the spiral passage way a
sectional area increasing from one end to the other, that is to say from where the
water enters up to the exit of the steam into the interior tube.
By thus returning the steam along the interior tube the water entrance and
steam exit may be effected by any convenient tubes placed both at the same
extremity of the apparatus.
In order to strengthen the walls of the coiled tubular passage ways and prevent
their giving way from their proper position, ribs are applied which are outwardly
interpolated between the coils, for instance between each coil and the next.
An example of this construction of steam generator is shown in the annexed
drawing in which Fig. 1 is a longitudinal section and Fig. 2 a side elevation
thereof.
A is the outer tube whose surface is composed of a helicoidal hollow flange or
flanges, B is the interior tapered tube closing the hollow spaces in said flanges and
converting them into a spiral passage way or ways C. E is the water inlet. F the
steam outlet. a are the ribs or webs connecting and strengthening the flange or

page_text: flanges of tube A. bb are pressure screws passing through and engaging in a
flange at the end of tube B and bearing on the end of tube A for the purpose of
releasing tube B when desired.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A steam generating or vaporizing apparatus, composed of a tube with hollow
helicoidal flange or flanges in which a smooth conically shaped tube is inserted,
the outside of which converts the hollow space within the flange or flanges into a
spiral tubular passage way while the interior of the inserted tube constitutes a
separate steam reservoir, for the purpose set forth.
2. The construction of such apparatus with the water feed and steam outlet
both at the same end thereof and preferably at the broader end of the conical tube,
for the purposes set forth.
3. The construction of the interior of the helicoidal flange or flanges of triangular
cross section to permit of the use of a scraper with two cutting or scraping wings,
this scraper having its inclination and profile corresponding to the cross section of
the said interior.
4. The combination with an exterior flange on the central tube of two or more
screws for loosening the central tube for its removal at any time, substantially as
set forth.
021
1
T
1004
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant