Year: 1888

page_text: I JAMES ROOTS 19 St. Marys Road Westbourne Park W. Engineer do hereby
declare the nature of this invention to be as follows:-
The engine is designed to consume the heavier petroleums such as kerosene, tea
rose paraffin, etc. The closing cover at the back end of the cylinder is cast with a
groove in it, into which groove is fitted a short piece of flattened brass or copper tube,
the upper part of which tube projects outside of the cylinder and has fixed to it a
funnel shaped chamber packed loosely with layers of wire gauze, on the lid or cover
of this chamber is attached the mouth of the oil supply pipe, between which and the
hand-controlled tap or valve is a piece of thick glass tube held firmly by four pro-
tecting wire bars or a metal tube with slots cut in it. Into the same cap or cover is
fitted the main air tube which is passed through a portion of the exhaust pipe to heat
the air first before reaching the oil, an additional supply of air may pass through
perforations in the cover. The before mentioned groove in the cylinder cover is
continued round it on the inside of the cylinder to the bottom of tho cover and the
flattened tube divides into four or more smaller tubos above where the groove
branches so that half of the tubes pass down one groove and half in the other and
again pass outside the cylinder directly into the admission valve box below it. The
pipes may also be placed round the inside of the cylinder in the clearance space, or in
the place of the pipes, flat channels may be formed in the cylinder cover. The oil
supply is regulated by the centrifugal governor on rising, lifting a lever, the other
end of which acts directly on the oil supply valve. The piston on the outstroke draws
in air through the pipe, (which may have a governing valve in it) heated by the
exhaust products and then air and oil together through the wire gauze in the funnel
chamber, then through the tubes passing through the cylinder, and which are heated
directly by the combustion of the charge, so that when the charge enters the cylinder
the petroleum and air are perfectly mixed. A glass tube is also fitted at the side of
the petroleum reservoir to shew the level of the oil within.

page_text: I, JAMES ROOTS, of 19 St. Marys Road, Westbourne Park, Middlesex 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:-
This invention is designed to consume the heavier petroleums, such as Kerosene,
Tea Rose Paraffin, or Crude Petroloum. The closing cover at the back end of the
cylinder is cast with a groove in it, into which groove is fitted brass or copper tubes
connected by a port with a funnel shaped chamber, packed loosely with layers of wire
gauze, on the lid or cover of this chamber is attached the mouth of the oil supply
pipe, between which and the band controlling tap or valve is a piece of thick glass
tube held firmly by four. protecting wire bars or a metal tube with slots cut in it.
Into the same funnel shaped admission chamber is fitted the main air tube which_is.
passed through a portion of the exhaust pipe to heat the air first before reaching the
oil; an additional supply of air may pass through perforations in-the-cover. The
before mentioned groove tubes, or channels-in-the cylinder cover are continued round
the cover on the insido to the bottom of the cover, and the channel divides into four
or more tubes, or grooves for the purpose of contracting the passages and also in
order that the air and petroleum may take up more heat in their passage; they then
pass directly by one channel to the admission valve box below the cylinder.
The oil supply is regulated by the-centrifugal governor which on rising lifts a lever,
the other end of which acts directly on the oil supply valve. The piston on the out-
stroke draws in air through the pipe heated by the exhaust products and then air and
oil together through the wire gauze in the funnel chamber, then through the tubes or
grooves in the cylinder cover and which are heated directly by the combustion of the
charge, so that when the charge enters the cylinder, the petroleum and air are
perfectly mixed. A glass tube is also fitted at the side of the petroleum reservoir to
show the level of the oil within.
Figure 1 of the annexed drawings shows the manner in which the tubes or channels
are cast in the cylinder cover.
Figure 2 is a section of the same.
Figure 3 shows another arrangement of the same tubes or channels cast in the
cylinder cover.
Figure shows another modification of the arrangement in which four tubes are
fitted into one groove cast in the cylinder cover.
Figure 5 is a section of the same.
Figure 6 shows a section of the cylinder end with the admission chamber.
Figure 7 shows other details of the engine.
Figure 8 is a diagram indicating the action of the governor on the supply valve.
The saine letters of reference refer to the same parts in all the Figures.
A is the cylinder, B the cylinder cover, C the tubes or channels cast in the cylinder
cover. the admission port in the cover admitting the petroleum and air to the
channels C. C is a closing plate covering the tubes or channels C and separating
them from the cylinder. D the admission or mixing chamber. D¹ the channel con-
veying the petroleum and air to the port C' in Figures 1 and 4 but in Figure 3-they

page_text: are admitted to C¹ direct from the mixing chamber D to the port C¹. E is the
petroleum reservoir. F the red hot tube igniter heated by the ordinary oil lamp G.
His the petroleum supply valve. H¹a rod having a semi-universal joint communi-
cating the movement of the lover H² to the plunger or valve H. It is a bell crank
lever, by means of which on the rising of the governor I the free jointed rod H¹ is
withdrawn from the movement of the rod H³, thus preventing the valve or plunger H
being actuated and cutting off the oil supply.
Jis the pipe supplying the air to the chamber D which is first heated by passing
through the exhaust box. K is the admission valve to the cylinder A. K is the
channel connecting the valve box K of the cylinder A with the tubes or channels C.
S is the ordinary sight feed drop tube fitted in the petroleum supply tube. T is the
band connecting the pulley on the governor with that on the crank shaft W. W' is
a toothed wheel having half the teeth of the wheel W³, into which it gears.
In Figures 1 and 3, it will be observed that the tubes C are cast in the cylinder
cover itself and closed from the cylinder by the plate ( which forms one wall of the
tubes or channels C.
In Figures 1 and 4 the charge of air and petroleum is drawn by the suction of the
engine through the gauze in the chamber D by the channel D', through the port C¹
round the tubes or channels C into the space or channel K¹ directly into the valve
box K by the admission valve to the cylinder A.
In Figure 3 the charge of petroleum and air are drawn directly from D by the
port C, through the tubos or channels C cast, as shown, into the valve box K.
Figuro 8 is a diagram illustrating the method of controlling the supply valve with
the parts not in correct position to render the working more clear.
It will be observed that the tubes or channels C formed, cast, or placed in the
cylinder cover aro separated from the charge during explosion by the plate C², so that
there is not moro cooling surface at the time of explosion than in an ordinary gas
engine.
am aware that heating channels have been used before, placed in the explosion
chamber of a petroleum engine but this arrangement by largely increasing the cooling
surface offered to the charge at the moment of explosion prevents completo combus-
tion and seriously affects the economy of the engine.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what
claim is :-
¦--
1. Forming grooves or channels in the inner face of the cylinder cover closable by
a plate for beating air and petroleum in their passage through said grooves under the
suction action of the piston, the grooves being separated from the explosion chamber
of a Petroleum Engine, as set forth and substantially as shown in the annexed
drawings.
2. Forming in combination with the grooves or channels C a passage K' in the
same cylinder cover for conveying the heated charge of petroleum and air by the
valve K directly to the cylinder, as described.
3. In a Petroleum Engine, the admission chamber D, the grooves or channels C,
the
passage K' leading immediately to the cylinder by the valve K all arranged as
shown on the annexed drawings and as described.
4. The means or appliances by which the plunger H is operated and the supply of
petroleum governed, as set forth.