Improvements in Gas and Oil Motor Engines.
Year: 1895

page_text: Date of Application, 5th Sept., 1895
Complete Specification Left, 4th July, 1896-4ccepted, 22nd Aug., 1896
PROVISIONAL SPECIFICATION.
Improvements in Gas and Oil Motor Engines.
I, HENRY CAMPBELL, of The Imperial Gas and Oil Engine Company, West
View, Halifax, in the County of York, Engineer, do hereby declare the nature of
this invention to be as follows:-
The first part of my invention has reference to means to be employed for
governing either gas or oil engines. The means I employ for this purpose consist
in the first place of making use of an ordinary horizontal reciprocating rod
actuated by gearing from the crank shaft of the engine. The forward end of this
rod is used, in my case for the purpose of opening the exhaust valve but onto the
forward end of the said rod, I mount thereon loosely a pendulum governor. When
the engine is running at its normal speed a finger of the pendulum governor comes
into contact with a short rod attached to one end of the lever, the other end of the
said lever being connected to a horizontal rod in connection with the inlet valve
therefore when the engine is running at its normal speed, at each backward move-
ment of the pendulum governor, the finger strikes the short rod and opens the
inlet valve, but if the engine is running too quickly the finger lowers and misses
the short rod, failing to strike it consequently the inlet valve will remain closed
until the engine reaches its normal speed, whereupon the finger will assume its
horizontal position and strike the rod to open the valve.
The second part of my invention refers to oil engines and my improvements
therein consist in a new form and construction of vaporiser which is cylindrical in
form and preferably connected to the valve box of the engine but it may be
attached to any other suitable and convenient part of the engine. The vaporiser
is composed of two tubes or cylinders one within the other leaving an annular
space between them. The inner cylinder or tube of the vaporiser is open at both
ends. The ignition tube enters at one end thereof and a lamp at the opposite end
and in consequence of the upper end being open there is an updraught causing the
lamp to burn freely, the hot air arising therefrom impinging against the said tube
with a considerable degree of heat. The inner side of the outer tube of the
vaporiser is made with a division plate or diaphragm which prevents the oil or
combustible mixture ascending directly upwards to the outlet of the suction valve
by which means the combustible mixture is more quickly distributed.
A vaporiser constructed as herein described will not easily foul, but it is easy to
manufacture, and cheap in construction, and by applying it or fixing it to the valve
box scope is afforded to apply the system of governing described in the forepart of.
this specification.
Dated this 4th day of September 1895.
TASKER & CROSSLEY,
Halifax, Patent Agents.

page_text: Improvements in Gas and Oil Motor Engines.
I, HENRY CAMPBELL, of The Imperial Gas and Oil Engine Company, West
View, Boothtown, Halifax, in the County of York, 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 :-
The first part of my invention has reference to means to be employed for
governing either gas or oil engines. The means I employ for this purpose consist
in the first place of an ordinary horizontal reciprocating rod actuated by gearing
from the crank shaft of the engine. The forward end of this rod is used, in my
case, for the purpose of opening the exhaust valve but on to the forward end of
the said rod, I mount thereon loosely a pendulum governor. When the engine is
running at its normal speed a finger of the pendulum governor comes into contact
with a short rod attached to one end of the lever, the other end of the said lever
being connected to a horizontal rod in connection with the inlet valve therefore
when the engine is running at its normal speed, at each back-ward movement of
the pendulum governor the finger strikes the short rod and opens the inlet valve,
but if the engine is running too quickly the finger lowers and misses the short rod,
failing to strike it, consequently the inlet valve will remain closed until the engine
reaches its normal speed, whereupon the finger will assume its horizontal position
and strike the rod to open the valve.
The second part of my invention refers to cil engines and my improvements
therein consist in a new form and construction of vaporiser which is cylindrical in
form. The vaporiser is composed of two concentric tubes or cylinders between
which is an annular chamber. The inner cylinder or tube of the vaporiser is open
at both ends. The ignition tube enters at one end thereof and a lamp at the
opposite end and in consequence of the upper end being open there is an up-draught
which causes the lamp to burn freely the hot air arising therefrom impinging
against the said tube with a considerable degree of heat. The inner side of the
outer tube of the vaporiser is made with a division plate or diaphragın which
prevents the oil or combustible mixture ascending directly upwards to the outlet
of the suction valve.
My invention will be fully understood by reference to the annexed sheet of
drawings illustrative thereof, wherein :-
Fig. 1. is elevation of my improved apparatus for regulating and governing the
supply of gas or oil to motor engines, the framework of the engine being
omitted; and Fig. 2 is plan of same. Fig. 3. is sectional elevation and Fig. 4. plan
taken on line 1-2 of Fig. 3. of my improved construction of vaporiser for oil
engines.
Referring firstly to Figs. 1 and 2. letter A represents the crank shaft of the
engine and B a pinion mounted thereon which gears with and drives a spur wheel C
carrying a crank pin D to which is secured one end of a connecting rod E attached
at its opposite end to the ordinary horizontal reciprocating rod F adapted to slide
backwards and forwards in a bearing in the bracket G. The front end of the
said rod F. is used, in the present case for the purpose of opening the exhaust
valve by abutment at every forward stroke with the exhaust valve spindle H, and
to the same end of such rod I attach loosely a pendulum governor I centred on a
stud J and provided with a counterbalance weight K. The finger 11 of said
governor when the speed of the engine is normal occupies a horizontal position and
at every backward stroke of the rod F is brought into engagement with the end of
a short rod L supported in a bearing in the bracket G parallel with the rod Fand
connected at its opposite end to a lever M pivoted at Mi and coupled by connecting
rod N to the oil or gas inlet valve spindle D. Each time the finger l' strikes

page_text: against the short rod L the lever M is oscillated on its fulcrum in the direction
of the arrow and by means of connecting rod N opens the inlet valve P admitting
a charge of gas or oil to the mixing chamber or vaporiser of the engine which
continues until the speed of the engine is accelerated beyond the requirements of
the load whereupon the governor causes the finger l' to lower, as indicated by
arrow, clear of the end of the rod L which it therefore fails to strike at each
backward stroke and allows the inlet valve P' to remain closed and prevent further
supply of gas or oil until the engine regains its normal speed whereupon the
finger I assumes its horizontal position and the supply of oil or gas recommences.
The finger I is prevented from moving upward by the stop piece Q held in
position by spring Q
Referring to the second part of my invention which is illustrated in Figs. 3
and 4, R represents a vaporiser for oil engines which is preferably connected to
the valve box S, but may be attached to any other suitable and convenient part of
the engine as found necessary, said vaporiser comprising two concentric tubes or
cylinders R1, R2, between which is an aunular space or chamber R³ closed at the
top by a loose plate T and sealed at the bottom somewhat as shewu. The inner
tube R is open at both ends into one of which enters the ignition tube U, whilst
at the opposite end is placed the lamp V of any ordinary construction, such open
ends of the tube creating an updraught which causes the lamp to burn more freely,
and the products of combustion to impinge upon the tube U with a considerable
degree of heat. The inner side of the outer tube R¹ of the vaporiser is made with
a division plate or diaphragm W commanding a part of the area of the chamber R³.
intermediate of the inlet valve and the vapour outlet X in order that the oil or
combustible mixture may not be drawn directly to said outlet but will have to pass
around the chamber R³ and thus be brought into contact with a larger area of
heating surface and over the more heated portions of the inner tube R² whereby
complete vaporisation of the oil is more readily brought about.
In addition to the advantages named a vaporiser constructed as herein described
will not easily foul, is easy to manufacture, and cheap in construction, and by
fixing it to the valve box, scope is afforded to apply the system of governing
described in the fore part of this specification.
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 :-
Firstly. In oil or gas engines the combination, with the ordinary reciprocating
rod actuated from the crank of the engine, of the meaus for regulating and
governing the supply of oil or gas to the vaporiser or mixing chamber
substantially as herein shewn and described.
Secondly. In oil engines, the construction of vaporiser in the manner and for
purposes substantially as herein shewn and described.
Dated this 3rd day of July 1896.
TASKER & CROSSLEY,
Patent Agents,
Halifax, Agents for Applicant..