Improvements in Oil-gas Apparatus.
Year: 1889

page_text: Date of Application, 18th Sept., 1889
Complete Specification Left, 24th May, 1890-Accepted, 28th June, 1890.
PROVISIONAL SPECIFICATION.
Improvements in Oil-gas Apparatus.
I, EDWIN MANSFIELD, of 140 Great Clowes Street, Broughton, Salford, near the City
of Manchester, Gas Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
The improvements relate to apparatus employed in the manufacture of gas for
lighting, heating or other purposes, from mineral or other oils or fats, and more
particularly relate to that kind of apparatus known in Great Britain and elsewhere aş
Mansfield's Oil-gas Apparatus," and have for object the more effectual gasification of
the oil or fat by the better utilization of the heated products of combustion in such
like apparatus.
To accomplish this and to effect my improvements, I construct the outer casing of
the apparatus in form similar to that bitlierto employed under the method above
referred to and which is described in my specification No. 6647 dated May 18th,
1886 but I allow a greater amount of space for the products of combustion between
the bottom of the retort and the cover of the furnace, and I also form the hottom, or
the central portion of the bottom of the retort thicker than its sides, for the purpose
of retention of high temperature at that point where the oil dropping has a cooling
effect.
t
By this means I am able to revert to the earlier methods employed by me of
allowing the products of combustion to escape into the chimney at the upper part of
the apparatus, and yet avoid the great loss of heat which such position of escape
entailed in the earlier arrangements.
The feed pipe I pass, as in my later arrangements, through the bonnet of the retort,
by preference; but the same may also be passed through the side of the casing, as in
the older types.
Dated thin 17th day of Santamban 1000
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent..
COMPLETE SPECIFICATION.
Improvements in Oil-gas Apparatus.
I, EDWIN MANSFIELD, of Clowes Street, Manchester, Gas Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to he particularly described and ascertained in and by the following
statement
:
1
The improvements relate to apparatus employed in the manufacture of gas for
lighting, heating or other purposes, from mineral or other oils or fats, and more
particularly relate to that kind of apparatus known in Great Britain and elsewhere as
Mansfield's Oil-gas Apparatus" and have for object the more effectual gasification of
the oil or fat by the better utilization of the heated products of combustion in such like
apparatus.
To accomplish this and to effect my improvements I construct the outer casing
of the apparatus in form similar to that hitherto employed under the method above
referred to and which is described in my specification No. 6647 dated May 18th
1886, but I allow a greater amount of space for the products of combustion between
the bottom of the retort and the cover of the furnace, and 1 also form the bottom, or
the central portion of the bottom of the retort thicker than its sides, for the purpose
of retention of high temperature at that point where the oil dropping has a cooling
effect.

page_text: By this means I am able to revert to the earlier methods employed by me of
allowing the products of combustion to escape into the chimney at the upper part of
the apparatus, and yet avoid the great loss of heat which such position of escape
entailed in the earlier arrangements.
The feed pipe I pass, as in my later arrangements through the bonnet of the retort,
by preference; but the same may also be passed through the side of the casing as in
the older types.
+
But that the invention may be heller understood, I will by the aid of the accom-
panying drawings proceed more fully to describe means employed by me.
Fig. 1. shews an elevation, and Fig. 3. a plan view of apparatus arranged according
to my improvements; and Fig. 2. shews a vertical section thereof on line A. B, and
Fig. 4. a transverse section on line C. D.
The same letters indicate corresponding parts wherever they occur.
a, a, is the outer casing of the apparatus and b, b, the retort; c, c, is the space for
the heated gases to play about the retort, and c, c, that portion of such space which
is increased in accordance with the present improvements; while is the thickened
portion of the retort bottom on which the oil is permitted to drop from the feed
pipe which in the illustration shewn, is passed through the bonnet 7. g. The
direction of the heated gases, as they issue from the openings h, h, in the fireclay or
other cover or top of the furnace, is indicated by arrows, and after enveloping the
refort and delivering thereto a certain portion of their heat, they proceed direct to the
chimney e, e.
The gas, as made in the retort, passes through tho bonnet g, g, to the hydraulic, as
is well understood.
Variations in detail may be made, such as the form of the space or spaces, c, c, the
retort, b, b, the bottom thereof, and also in the various dimensions or inaterials
without departing from the peculiar character of the invention:
Having now particularly described and ascertained the nature of my inven
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. The employment, in oil-gas apparatus, of vertical retorts having their bottoms
or a portion thereof, thicker than their sides, for the purpose, and in the combined
manner substantially as shewn and described."
2. The construction of oil-gas apparatus, of the special character named, in such
manner as to allow a wide space between the bottom of the retort and top of the
cover to the furnace, for the purpose and in manner substantially as shewn and
'described.
3. The construction of oil-gas apparatus of the character indicated, substantially as
shewn in the drawings and herein described.
Dated this 22nd day of May 1890.
.
WILLIAM GADD,
E.,
64, Barton Arcade, Manchester, Agent.