Improvements in or appertaining to the Pipes or Tubes of Heating, Cooling, or Evaporating Apparatus.
Year: 1894

page_text: Improvements in or appertaining to the Pipes or Tubes of Heating,
Cooling, or Evaporating Apparatus.
A communication by ANTOINE DUMAS, of Brévannes, in the Republic of France,.
Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool and 6 Bank Street, Manchester,.
both in the County of Lancaster and 323 High Holborn in the County of
Middlesex, Civil Engineer, 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 modifications in the construction of heating, evaporating or refrigerating
tubes, which form the object of this Application, are based on the possibility of
increasing at will, the metallic surfaces of the tubes, in such a way, as to produce,
firstly, by conductibility a superior evaporation, or refrigeration, and secondly, to
utilize in a more complete manner the gases which pass through the tubes of
apparatus of all kinds.
The various arrangements employed for the construction of these removable
partitions are shown on the accompanying two sheets of drawings.
Figures 1, 2, 3, and 4 of Sheet 1 and 9, 10, 11 and 12 of Sheet 2 show the mode.
of arrangement of straight partitions a, provided with heels or contact projections b
in Figures 1, 2, 3 and 4. These partitions have at their intersection a core c_
provided with a threaded hole d, allowing of a rod being fixed therein for drawing
them out of, or inserting them in, the tubes.
Figures 5, 6, 7 and 8 of Sheet 1 and 13 and 14 of Sheet 2 show arrangements.
of curved partitions g. The shape of these partitions readily insuring contact.
with the internal wall e of the tubes. These partitions are also provided with
central sockets c.
The arrangements shown in Figures 10, 11, 12, 13 and 14 are those which are.
preferably employed where the movable partitions are to be placed in the interior
of boiling tubes. In this case as is shown in Figures 11, 13 and 14 the transverse
partitions g are smaller than the vertical partitions a. They may be straight, as
shown in Figure 11 with or without contact pieces, or wavy or curved, see
partitions and n in Figures 13 and 14 respectively, in order to offer more-
surface in contact with the liquid.
The arrangement shown in Figures 10 and 12 may also be adopted for boiling
tubes. In this case in order to facilitate the movement of the liquid the walls of
the partitions are perforated with holes l.
Figure 15 shows a longitudinal section of the tube m in which the partitious
are fixed in such a way as to assume a helicoidal form. The thread of such
helix may vary and be progressive. This arrangement may also be adopted with
bent, wavy, perforated or like partitions according to the object for which they
are to be employed. It will readily be seen that the cleaning of the tubes is.
greatly facilitated by the use of these removable partitions.
The removable partitions may be made of any suitable metal, cast, drawn,.
rolled or sheet, and fastened together by rivets, bolts or flanges; these sheets
may be smooth or corrugated and their mode of manufacture may vary according
to their destination and use.

page_text: Having now particularly described and ascertained the nature of the said inven
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
The improvements in or appertaining to the pipes or tubes of heating, cooling
or evaporating apparatus, which consist in providing such pipes or tubes with
removable partitions, substantially as described and shown and for the purposes
set forth.
Dated this 24th dow of Anvil 1004