AN IMPROVED MOTOR DRIVEN EXPSION HYDROCARBON VAPOUR
Year: 1885

page_text: I CHARLES KEMPSTER Junior of Kinton House in the parish of Great Ness
and County of Shropshire of no occupation do hereby declare the nature of my
invention for AN IMPROVED MOTOR DRIVEN BY THE EXPLOSION OF HYDROCARBON
VAPOUR to be as follows:-
The object of this invention is to provide a Motor for Stationary or Locomotive
Engines to be driven by the explosion of gas derived principally from mineral oils
or spirits and I believe that the said Motor on account of the comparatively small
bulk of its fuel can be used where Steam or ordinary Gas Engines cannot be made
available.
The Motor has eight exploding chambers, divided into four pairs, grouped into
two sets. The chambers (marked A) of each pair being exploded in rotation, one
of each set alternately, in the order of the following figures 1, 2, 3, 4, 5, 6, 7, 8, and
by means of valves each chamber is refilled with gas, immediately after its fellow
chamber in the pair has been fired. The driving wheel has two cranks at right
angles to each other so that when full power is required four chambers can be
exploded at each revolution. Each chamber (A) has, if necessary, its outer end
composed of two plates and between the said plates is a spring, the outer double
end being movable inwards or outwards by means of the rod (K) turned by
handle (J) whereby each chamber is made larger or smaller as required. Each
pair of chambers is supplied by two pumps (G) one pump being for gas, the other
for air, of such sizes respectively as shall best ensure perfect combustion. Each
pump (G) has a double valve enclosing a spring somewhat similar to the double
ends of chambers (A) and by turning the handle (J) each pump is risen or lowered,
thereby increasing or diminishing the amount of gas and air pumped in the same
ratio as the altered size of the chambers (A). Any or all of the said chambers
can, if desired, be instantly stopped working by turning either of the handles (H)
which movement shuts off the gas from the pumps and at the same time opens a
valve in chambers (B) to allow free working of pistons.

page_text: Improved Motor Driven by the Explosion of Hydrocarbon
Vapour.
I CHARLES KEMPSTER Jar of Kinton House, Nesscliffe, Shrewsbury, of no
occupation do hereby declare the nature of my invention for AN IMPROVED
MOTOR DRIVEN BY THE EXPLOSION OF HYDROCARBON VAPOUR and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object of this invention is to provide a Motor for either stationary or
locomotive purposes to be driven by the explosion of hydrocarbon vapour, which
Motor, on account of the comparatively small bulk of its fuel may be used where
steam or ordinary gas engines are not available.
A
A
A
A
A. A
A A
The motor has eight exploding chambers, divided into four pairs, grouped into
two sets. The chambers (A) being exploded in rotation in the following order
1. 2 3 4 5. 6. 7. 8. When ignited the exploded gas passes from
chamber (A) into the piston chamber (B) through the openings (L) and by its
pressure against the piston puts the machinery in motion. By means of valves
each chamber is refilled with gas immediately after its fellow chamber in the pair
has been fired. The driving wheel has two cranks at right angles to each other,
so that when full power is required four chambers can be exploded at each revo-
lution N 1. (Plate 2.) Each chamber A (Plates 1. 2. 3.) has for its outer end a
circular plate P (Plates 1. 2) capable of being moved inwards or outwards by
means of the rod K (Plates 1. 2. 3.) turned by handle J (Plates 1. 2. 3.) whereby
each chamber can be made larger or smaller according to the power required.
Each pair of chambers is supplied by two pumps G (Plates 1. 2. 3) one pump
being for gas, the other for air of such sizes respectively as shall best ensure
perfect combustion. Each pump has a double valve enclosing a spring G 1.
(Plates 2. 3.) The object of the said spring being to render the plunger collapsible,
and by turning the handle J. each pump is, by the vertical cogged bar J 1.
(Plates 2. 3.) risen or lowered, thereby increasing or diminishing the amount of
gas and air pumped, in the same ratio as the altered size of the said chambers A.
Any or all of the said chambers can be stopped working by turning the handles H.
(Plates 1. 2. 3) the lower end of axle of the said handle being keyed in the cog
wheel H. 1. (Plates 1. 2. 3.) The cogs of the said wheel fit into and turn the
cogged wheels on the top of each pump G. 2 (Plates 1. 2. 3) and thereby directs
the gas either into the exploding chambers A through the valves F1 and pipe F.
(Plates 2. 3.) or back into the gas holder through the valves F 2 (Plate 2.) and
pipe 01 (Plate 2) as required, at the same time the said handle H. on being
turned draws open the valve I. (Plates 1. 2. 3.) in piston chamber B. with which
it is connected by means of the rod and crank H 2. (Plates 1. 2. 3). The drawing
open of this valve allows free working of piston when the gas is shut off from
either of the pumps. The principal parts of the said engine may be thus briefly
described-
M. (Plate.2) Cistern for holding the oil or spirit.

page_text: O. (Plate 2) Evaporating chamber connected with cistern M, near the bottom
by a stop cock which lets the liquid in as required and at top by a pipe M 1.
(Plate 2) which equalises the pressure, between the evaporating chamber and the
cistern.
01. (Plate 2.) Pipe to convey the gas from evaporating chamber to gas pumps.
G. (Plates 1. 2. 3.) Four sets of pumps, two pumps in each set, one for gas the
other for air.
F. (Plates 2. 3.) Pipe conducting gas from pumps into exploding chambers.
A. (Plates 1. 2. 3) Exploding chambers.
L. (Plate 1.) Openings, closed by spring door, through which the exploded gas
passes from chamber A into chamber B.
B. (Plates 1. 2. 3.) Piston chambers.
N. (Plates 1.-2. 3.) The two piston rods, attached to driving wheel by cranks at
right angles to each other N 1. (Plate 2.)
Q. (Plates 2. 3.) Two pump rods, for driving Pump wheels. These rods are
attached to driving wheel by cranks at right angles to each other in same manner
as cranks of piston rods Q 1. (Plate 2.)
R. (Plates 2. 3.) Fly wheel.
R 1. (Plates 2. 3.) Axle of Fly wheel, having four cranks, two for Piston rods
and two for Pump rods.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. That by having the eight exploding chambers and thus enabling four
explosions to be obtained at each revolution, the Motor can be driven with
greater regularity than any gas engine hitherto invented.
2. That by means of the movable ends to the chambers A. the quantity of gas
used can be regulated exactly to the power required. This for a Locomotive gas
engine being of the utmost importance.
3. That by means of the handles H. the power can be further regulated from
One to Four explosions in each revolution.
4. That having the cranks of the driving wheel at right angles it is thereby
possible to obtain the four explosions of gas in each revolution.
5. That by having the two piston chambers B. the bad effects of overheating of
the pistons is in a great measure avoided, as the engine may, for ordinary work,
be driven by one piston, while the other cools.
Dated this 5th day of February 1885.