Year: 1888

page_text: Date of Application, 4th July, 1888
Complete Specification Left, 22nd Mar., 1889
Complete Specification Accepted, 27th Apr., 1889
JOHN HENRY KNIGHT Barfield, Farnham Surrey Engineer and Landowner do
hereby declare the nature of this invention to be as follows:-
In Engines worked by heavy Mineral oils, such heavy oils as are known as Kerosino
and Paraffin oils, such Engines as are described in my patents No. 2783 1887 and
No. 18555 1887. To light the charge of air and vapour I use a jet of flame produced
by burning the gas or vapour of the mineral oil. This jet may if necessary be urged
by an under pressure, the vapour being produced by heating a minature retort by
the heat of the burning vapour, or by heating a part of the pipe through which the
oil flows, that is the oil slowly flowing or trickling into the heated part of tho pipe, or
retort and issuing in a jet of burning vapour, this plays on to an incandescent substance
as described in my patent No. 13555 1887, or the incandescent substance may be
omitted and the flame directly communicated to the charge in the cylinder.
The vapour produced in the vaporiser of the Engine may be used as a lighting
flame, either with or without a jet of air urged under pressure.
In an inverted cylinder Engine (i.e. in which the crank shaft is underneath the
cylinder), the chamber for generating the vapour is made to project on one, or even
two or more sides, beyond the sides of the cylinder, and tho heating lamp for generating
vapour when Engine is cold is placed close alongside the cylinder, the chamber being
of an oval form in horizontal section, (or longer than it is broad,) so that when
the Engine is in action, the oil will be in actual contact with the hot plate forming
the cover or end of the cylinder.

page_text: JOHN HENRY KNIGHT of Barfield Farnham Surrey Engineer and Landowner
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 :-
In Engines worked by heavy Mineral oils such oils, as are known as paraffin and
Kerosine oils, for instance such Engines as are described in my Patent No. 2783
A.D. 1887 and No. 13555 of A.D. 1887. To ignite the charge of air and vapour I use a
jet of flame produced by burning the vapour of the oil taken from the vaporising
chamber of the Engine, instead of a separate lamp. To produce a hot smokeless flame
I use a jet of air similar to a Blow pipe. This hoats to a high temperature, to rod
or even white heat, a substance such as platinum; in fact any material which will
stand the great heat of the Blow pipe, and at the proper time the hot substance will be
placed in communication with the charge of vapour and air in the cylinder of the
Engine, by a cam, eccentric, or other means, as described in my patent No. 13555
of A.D. 1887, or a heated tube may be used. Or the incandescent substance may be
omitted and the flame applied directly to the contents of the cylinder.
Fig. 1 is a sectional plan of part of an Engine so fitted (only such parts being
shewn as are necessary to explain the invention). A Cylinder, B vaporising chamber
Z tube froin vaporising chamber taking vapour to form jet of flame, X tube taking
air from air pump of Engine D, or from Bollows; Y is an air bag or Recevoir to
produce a steady blast.
The air rushing from pump or bollows causes a strong blast on the platinum P
in the slide C, and at the proper time the heated platinum is brought into commg-
nication with the cylinder by the port R.
In one arrangement 1 conduct the air to form the Blast, round through, or
underneath the vaporising chamber, or any convenient part of the Engine so that it
can be heated and a hotter Blast, is thus obtained, see dotted lines W.
If Engino bas an opon vaporising chamber, that is, in which the vapour is sucked
by the piston into the cylinder, it is advisable to put a light check, or non Return
valve on pipo Z.
In an inverted cylinder Engine, that is in which the crank shaft is underneath the
cylinder, for instance such Engines as would be used in bonts, the chamber for
generating the vapour is made to project on one or more sides beyond the cylinder,
and the heating lamp for generating vapour when Engine is cold is placed closo
alongside the cylinder, underneath the projection of the vaporising chamber, such
vaporising chamber being provided with ribs, plates or Rods, similar to those described
in my patent No. 2783 of A.D. 1887, to warm the incoming air and diffuse the hent
produced in the cylinder, some of the oil will be in actual contact with the hot
plate forming the cover of the cylinder.

page_text: Fig. 2 shews Sectional Elevation of such an Engine, Fig. 3 is horizontal section
through vaporising chamber, A Cylinder E Piston, F vaporising chamber heated
when cold by lamp K, H Ribs, or plates for heating air, and diffusing heat produced
in cylinder; the air passing among these plates is warmed before entering the
cylinder; J air-inlet.
In Fig. 2 only such parts as are necessary to explain my arrangements are shown,
igniting slide, pump, cams etc. being omitted.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
(1) Taking a portion of the vapour produced in the vaporising chamber of a mineral
oil Engine to ignite charge in the cylinder, in place of a separate igniting lamp as
described above.
(2) The arrangement of vaporising chamber as described, for an invested cylinder
Engine, projecting on one or more sides beyond the Cylinder, the heating lamp being
placed underneath this overhanging or projecting part.
March 22nd 1889