Year: 1886

page_text: I, OLIVER IMRAY of N° 28 Southampton Buildings Chancery Lane in the
County of Middlesex Fellow of the Institute of Patent Agents 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 :—
This invention relates to apparatus for generating gas or combustible vapour
from petroleum and other liquid hydrocarbons, and for applying such gas or
vapour as fuel for boilers, the apparatus being so arranged as to combine in one
the gas generator and the boiler.
In the accompanying drawings Fig. 1 is a vertical section, Fig. 2 is a horizontal
section on the line xx of Fig. 1, Fig. 3 a horizontal section on the line y y of Fig. 1,
and Fig. 4 illustrates the gas generator detached from the apparatus, and Fig. 5 is a
vertical section shewing a modification of the apparatus.
The vertical boiler A is of annular form having a central vertical passage B,
which leads upward from the fire box D¹ to a chamber C at the top. Between the
exterior cylindrical shell a, and the interior cylindrical shell a' there are a number
of upright tubes b, which connect the fire box with the heating chamber C. The
chimney D is provided with a damper d. A 'water pipe E having any number of
coils e and furnished with a stop valve e¹ is led into the heating chamber C, and
thence passes downward to the lower part of the boiler. A steam pipo H provided
with a valve L and having also a number of coils I leads upward from the steam
space of the boiler as indicated at h through the heating chamber C to the exterior
thereof, and thence inward through a passage M (Figs. 1, 3 and 4) into the upper
part K of the casing of the gas generator. This casing is extended as a tube W
down the central vertical passage B and around it is an annular flue by which some
of the products of combustion ascend from the fire box to the chamber C. Within
the upper part K of the casing of the gas generator is a spherical or spheroidal
chamber O, from which a pipe T¹ extends downward within the tube W nearly to
its closed bottom. The upper part of O is screwed into the casing K. By a pipe R
•

page_text: the petroleum is supplied to the chamber O, and by a pipe S gas and vapour pass
from O. The pipes R and S, as well as the steam pipe H are led through the
passage M (Figs. 1, 3 and 4). The casing K rests by ribs K¹ upon the top of the
boiler. From the pipe S a branch pipe Ŭ leads down to the burner T, which rests
upon the grate V in the fire box D¹ so that it may be detached or removed when
not in use.
The operation of the apparatus is as follows: The heated gases rising from the
fire box (in which for starting a fire may be kindled upon the grate V) pass upward
through the tubes b and passage B into the chamber Cand thence to the chimney D
heating on their way the casing W and K of the gas generator, the coil I of the
steam pipe and the coil e of the water pipe, thus simultaneously heating the feed
water on its way to the boiler, the gas generator and the steam flowing into it.
The steam generated by the boiler passes through the coils I and pipe H along the
annular passage in the generator and up through the tube T¹ to the chamber O,
where it meets the oil flowing in a regulated quantity from the pipe R and trans-
forms it into vapour. The mixed steam and oil vapour pass away by the pipe S,
part being conducted by the branch U to supply the burner T.
In the modified form of apparatus shewn in Fig. 5 the upper chamber of the
generator has within it a shell O¹, into which the steam from the pipe T¹ escapes
by numerous lateral holes. At the closed top of the pipe T is a deflecting disc d¹
and below it are two or more discs . The oil supplied by the pipe R which has
its mouth below the disc d' becomes vaporised by intermixture with the steam
in O. The disc d' prevents unvaporised oil from passing to the eduction pipe S,
and the discs d break the current of steain and spread out the oil for vaporisation.
Besides the steam used for the generator additional steam may be led from the
boiler by the pipe H¹, this steam being superheated, if desired, by passing through
a coil I in the chamber C.
The apparatus shewn in Fig. 5 is generally similar to that illustrated in Figs. 1,
2, 3 and 4 corresponding parts being marked by similar letters.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1. Apparatus for conversion into gas and combustion of liquid hydrocarbons
constructed and arranged substantially as herein described with reference to Figs. 1,
2, 3 and 4 of the accompanying drawings, wherein a vertical tubular boiler having
a burner, a central fiue, and upper hot chamber, has combined with it a retort
situated in the chamber and flue, and pipes and coils so arranged that the steam
generated in the boiler and superheated mingles with oil in the retort vaporising
it, and combustion of part of the fluid thus produced is applied for heating the
boiler and retort.
2. The modified apparatus constructed and arranged substantially as described
with reference to Fig. 5.