Year: 1895

page_text: Date of Application, 3rd Dec., 1895-Accepted, 4th Jan., 1896
A communication from abroad by THE BUCKEYE MANUFACTURING COMPANY,
of Anderson, County of Madison, State of Indiana, United States of America,
Manufacturers.
I, WILLIAM LLOYD WISE, of 46 Lincoln's Inn Fields, in the County
of London, Consulting Engineer and Chartered Patent Agent 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 upon that class of gas engines in which
each charge of gas is ignited by an electric spark and in which the cylinder is
cooled by means of a water jacket surrounding the same; and the objects of the
invention are, first, to more effectively cool the end of the cylinder in which the
explosion takes place, secondly, to enable the lime deposited by the water to be
more readily removed from the interior of the water space and without disturbing
the cylinder-head or plate carrying the sparker, and thirdly to avoid the necessity
of packing the main head or ring against the explosion pressure, as more fully
hereinafter set forth.
Referring to the drawing,
Fig. 1 is an end elevation of a portion of a gas engine provided with these
improvements,
Fig. 2 an end elevation of the cylinder with the main head removed, and
Fig. 3 a vertical section of the end of the cylinder provided with my
improvements.
Referring to the drawing by numerals, 1 designates the cylinder proper in which
the piston works and which is contracted at its extreme rear end to form the
explosion chamber. Cast integral with the cylinder is the water jacket 2, whose
rear end terminates about where the cylinder begins to contract. Bolted over the
open end of the cylinder, by bolts 3", is the plate 3, carrying the sparking devices,
this plate being packed against the explosion pressure. A hollow head or ring 4
is fitted over and encircles the projecting end of the cylinder and is substantially
flush with the end surface of the same. This hollow head is bolted, by bolts 4*, to
an annular exterior flange 5 formed on the cylinder near its end and also, by
bolts 4, against the adjacent end of the water jacket, these two joints being packed
against the water pressure only. This hollow head practically is an extension of
the water jacket, as it completes and extends the water chamber around the
projecting end of the cylinder.
It will be observed that by this construction it is not necessary to pack the head 4
against the explosion pressure, it needing only to be packed against the water
pressure; the advantage of this feature will be appreciated when it is understood
that the water pressure is never more than one pound to the inch while the
explosion pressure is frequently as high as two hundred and fifty pounds to the inch.
It will also be seen that by removing the hollow head access may be readily had to
the interior walls of the water chamber, and especially the projecting end of the
cylinder, for the purpose of removing the lime accumulations. Another advantage
is that a large body of water will be maintained entirely around the explosion
chamber, where on account of the intense heat it is most needed.

page_text: As is obvious, changes in construction may be made without departing from the
spirit of the invention; for instance, the rear end of the cylinder may be closed
by a solid plate cast with the cylinder, or by a plug, screwed or otherwise
fastened therein; and further that the sparker may be located at some other
place if desired.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a gas engine, the combination of the cylinder provided with a water jacket,
a sparker carrying plate bolted over the end of the cylinder, and a head encircling
the end of the cylinder and bolted and packed against the cylinder and the adjacent
end of the water jacket, substantially as described.
2. The combination, in a gas engine, of a cylinder carrying a water jacket, said
jacket terminating short of the rear end of the cylinder, the projecting end of the
cylinder being flanged annularly, a plate bolted over the projecting end of the
cylinder and carrying the igniter, and a hollow head encircling the projecting end
of the cylinder and bolted to said annular flange and against the end of the water
jacket, as and for the purpose set forth.
3. In a gas engine, the combination of a cylinder having formed integral with it
a water jacket, said jacket terminating short of the rear end of the cylinder the
projecting end of the cylinder being contracted and provided with an annular
flange near its end, an igniter carrying plate bolted over the end of the cylinder,
and a hollow head fitting over the end of the cylinder and packed against said
annular flange and the adjacent end of the water jacket, as and for the purpose
set forth.
4. In a gas engine, the combination of a cylinder surrounded by a water jacket,
this water jacket being open at its rear end, a hollow head encircling the rear
end of the cylinder and packed against the same and the water jacket and being
removable independently of said rear end of the cylinder and jacket, substantially
as described.
2
Dated this 3rd day of December 1895.
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.