Year: 1896

page_text: We, WILLIAM HORNSBY, ROBERT EDWARDS, DAVID ROBERTS, and JOHN
YOUNG, all of Richard Hornsby and Sons, Limited, Spittlegate Iron Works,
Grantham, in the County of Lincoln, Engineers, do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in explosion engines having a combined
vaporizer and combustion chamber connected to the working cylinder by a
contracted neck or opening such as are described in the Specifications of former
Patents No. 7146 of 1890; No. 15994 of 1890, and No. 3909 of 1892.
In carrying out our improvements the combined vaporizer and combustion
chamber is water-jacketed at the part nearest the neck or cylinder end, and in
Bome cases water-jacketed at the back and at the other end; the part between the
water-jacketed portions is not water-jacketed, and serves as the vaporizer portion
of the chamber and can be externally heated as required.
Or we employ a combustion chamber, wholly jacketed and provide it with an
internal pipe or chamber passing into it, or quite through it, which is not water-
jacketed and forms the vaporizer which can be either cast with the combustion
chamber or made detachable so as to be easily renewable as required.
In some cases we combine two vaporizers attached by necks to the cylinder end,
employing a separate injection nozzle for oil to each vaporizer, or a combination
one, and we employ either one pump to each, or one for the two, as most
convenient.
Dated this 7th d... of auch 1004
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
We, WILLIAM HORNSBY, ROBERT EDWARDS, DAVID ROBERTS, and JOHN
YOUNG, all of Richard Hornsby and Sons, Limited, Spittlegate Iron Works,
Grantham, in the County of Lincoln, Engineers, 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 improvements in explosion engines having a combined
vaporizer and combustion chamber connected to the working cylinder by a
contracted neck or opening such as that described in the Specifications of foriner
Patents No. 7146 of 1890; No. 15994 of 1890 and No. 3909 of 1892, the object
of the invention being to keep down the heat of those parts of the said chamber

page_text: which are not directly required for vaporizing the liquid hydrocarbon or igniting
the combustible mixtures.
In carrying out our improvements the combined vaporizer and combustion
chamber is water-jacketted at the part nearest the neck or cylinder end, and
sometimes at the back end also the unjacketted part, in both cases, serving as
the vaporizer and igniter proper and being adapted to be externally heated if
required.
Or we employ a combustion chamber, wholly jacketted and provide it with an
internal pipe er chamber passing into it, or quite through it, which is not water-
jacketted and forms the vaporizer, which internal pipe can be either cast with
the combustion chamber or made detachable so as to be easily renewable as
required.
In some cases we combine two vaporizers attached by necks to the cylinder end
and employ a separate oil injection nozzle to each vaporizer, or a combination one,
and we can use either one pump to cach, or one for the two, as most convenient.
With this construction the size of the vaporizers can be considerably reduced.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a longitudinal section shewing a vaporizer which is jacketted at the
cylinder end, and,
Figure 2 is a similar view shewing a vaporizer jacketted at the two ends and
with the intermediate part uncovered:
Figures 3 and 4 are longitudinal and transverse sections respectively shewing
the arrangement wherein the vaporizer is provided with an internal pipe or
chamber:
Figure 5 is a longitudinal section shewing the arrangement wherein two vaporizers
are employed:
Figure 6 is a view similar to Figure 1 illustrating a slight variation.
Similar letters of reference relate to similar or corresponding parts in the several
figures.
a is the working cylinder, is the contracted neck, c is the vaporizer or
combustion chamber and d is the water jacket which surrounds the working cylinder
and extends around the ends of the same so as to surround the said contracted
neck b.
In the arrangement of our invention shewn in Figure 1 the vaporizer is
represented as made in two parts suitably jointed and united together and the
cylinder end of which is surrounded by a jacket e which communicates through
openings f, with the water space forined by the jacket d so that the cylinder and
vaporizer will be cooled by the same water circulation.
g is the aperture through which the oil or the like is introduced the said aperture
being formed in the unjacketted part of the vaporizer which during the working
of the engine will be much hotter than the other or jacketted part thereof.
In the arrangement of our invention shewn in Figure 2 the vaporizer is formed
in three parts the cylinder end portion of which is jacketted in the manner
hereinbefore described and the outer portion of which is also jacketted and provided
with pipes h, h for the water circulation, which pipes may be connected either to the
cylinder jacket or to a separate circulating tank, the intermediate portion is as
before stated unjacketted, the aperture 9 for the inlet of the oil or the like being
formed in this unjacketted part which in working the engine becomes hotter than
the two end portions.
In the arrangement of our invention shewn in Figures 3 and 4 a pipe i extends
through the interior of the vaporizer the two ends of the said pipe being open so as
to allow of its being heated by means of a lamp. This pipe is represented as
being made separate from the vaporizer and attached thereto by any suitable
means, the said pipe having on its outer side ribs or flanges j, j for affording a
large heating surface. In this modification the water jacket extends completely
around the vaporizer but does not come into contact with the heating tube as will

page_text: be clearly seen by reference to Figure 4. The aperture g through which the oil
or the like is injected is arranged opposite to the tube i so that the oil as it is
injected will come into contact with the heated walls of the said tube.
The arrangement of our invention shewn in Figure 5 is only a duplication of the
arrangement shewn in Figure 1, that is to say, the cylinder end of each of the two
vaporizers is surrounded by a jacket the apertures g, g being represented as connected
with a common oil pipe k. It will be obvious that with this modification the
cylinder is provided with two contracted necks b instead of with one only as has
hitherto been usual. It is to be understood that either of the forms of vaporizer
described may be used in duplicate in place of the form shewn in Figure 1.
The modification shewn in Figure 6 is identical with that shewn in Figure 1
except that on the unjacketted end of the vaporizer we have represented an air
admission valve as being applied.
In the different figures, the water jacket of the vaporizer is shewn connected to the
water jacket of the cylinder by openings, if desired, however, separate inlet and
outlet pipes may be employed in which case there is no direct communication between
the vaporizer jacket and the cylinder jacket. We sometimes arrange cocks or
valves in these openings or pipes whereby the amount of water supplied to the
water jacketted part of the vaporizer can be controlled.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In an explosion engine such as described in the before mentioned patents
a vaporizer formed in two parts of which the part nearest the cylinder is
water jacketted, whilst the end furthest from the cylinder, into which oil, gas or
other vapour is immediately introduced, is not water jacketted, substantially as
described.
2. In an explosion engine such as described in the before mentioned patents a
vaporizer made in three parts and having the end nearest the cylinder and also the
outer end water jacketted, whilst the central portion is unjacketted so that the
latter can retain heat for vaporising oil and igniting a mixture of oil, gas or other
vapour and air admitted into the vaporizer, substantially as described.
3. In an explosion engine such as described in the before mentioned patents a
vaporizer with the part nearest the cylinder water jacketted and the other end
unjacketted as referred to in Claim 1 the said unjacketted end having an air
admission valve placed on it, as well as an admission inlet for gas, oil or other vapour,
substantially as described.
4. In an explosion engine such as described in the before mentioned patents a
vaporizer water jacketted all over externally and provided with an internal pipe
or vaporizer ignition tube, which will remain hotter than the remainder of the
vaporizer for the purposes of vaporizing the oil, and igniting the explosive charges
as required and which can be heated by a lamp, substantially as described.
5. In an explosion engine such as described in the before mentioned patents two
or more vaporizers placed side by side and provided with a dual or separate
admission for oil or vapour, substantially as described.
Dated this 20th day of December 1896
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.