Explosive-Engine. Page: 3 of 4
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UNITED STATES PATENT OFFICE.
WILLIS W. COOPER, OF FLOMOT, TEXAS.
EXPLOSIVE-ENGINE.1,285,562.
Spefication of letters Patent.
Patented Nov. 19,1918.
Application filed January 9, 1917. Serial No. 141,388.
To all whom it may concern:
Be it known that I, WILLIS W. COOPER, a
citizen of the United States, residing at
Flomot, in the county of Motley and State
5 of Texas, have invented certain new and
useful Improvements in Explosive-Engines;
and I do hereby declare the following to be
a full,'clear, and exact description of the in-
vention, such as will enable others skilled
10 in the art to which it appertains to make and
use the same.
This invention has for its object to pro-
vide an improved engine of the internal
combustion type, in which the explosion oc-
15 curs between two oppositely moving pistons
arranged in a single cylinder and connected
with independent crank shafts.
Another object is the provision of a novel
type, of valve -gear whereby the valves are
20 mechanically actuated during operation of
the engine.
Another object is the provision of means
for effectively cooling the cylinder and pis-
tons ,by water forcibly circulated' there-
25 through.
With these and other objects in view, the
invention consists in the novel construction,
combination and arrangement of parts as
will be - hereinafter specifically described,
3o claimed and illustrated in the accompanying
dra wings, in which
figlure I represents a side ee'ation of the
engine, partly broken away,
Fig. 2 represents a plan view thereof,
35 Fig. 3 represents a fragmentary sectional
view through the cylinder of the engine.
Fig. 4 represents a sectional view on the
line 4--4 of Fig. 3, and
.0Fig. 5 represents a sectional view on the
40 line 5-5 of Fig. 3.
Referring to the drawing in detail, where-
in similar reference numerals designate cor-
responding parts throughout the several
views, the numeral 10 indicates a suitable
45 supporting base upon which is mounted the
cylinder 11, having a longitudinal bore 12
and a jacket providing a water chamber 13.
Pistons 14 are arranged in the bore of the
cylinder and cooperate therewith to provide
50 the combustion chamber 14a. Piston rods 15
are pivotally connected with the pistons 14,
extend outwardly through the outer open
ends of the cylinder 11 and are connected
with the crank pins 17 of the crank shafts16, which latter are rotatably supported 55
upon the base 10 on opposite ends of the
cylinder 11.
Fly wheels 18 are carried by the crank
shafts 16, and the latter are provided with
pairs of crank pins 19. The crank pins 19 60
of the two shafts 16 are connected by the
rods .20, which are arranged on opposite
sides of the cylinder 11 and the crank shafts
rotate in opposite directions.
A valve housing 21 is detachably secured 65
to the medial portion of the cylinder 11 by
bolts, or equiva-'ent means 22, and incloses
the inlet and exhaust ports 23 formed in
the central portion of the cylinder. In-
wardly opening valves 24 are arranged in 70
the ports 23, and the interior of the housing
21 is divided by a partition into inlet and
exhaust chambers having connection with
an approved type of carbureter 22a and an
exhaust pipe. 75
A cam shaft 26 is journaled at one end in
the housing 21 and is provided with spaced
cams adapted to engage and actuate the
stems of the valves 24. The terminal of the
shaft 26 opposite the housing 21 is connected 80
by bevel gear wheels 28 with the crank
shaft 16, so that rotary movement is im-.
parted to the shaft 26 during operation of
the engine. The shaft 26 is, formed in two
parts or sections, which are connected by the 85
universal joint 27, so as to permit the parts
of the shaft to move into various angular
positions. The timer mechanism 29 of the
ignition system of the engine is preferably
connected with the terminal of the shaft 26 90
and operated thereby, and 'is connected with
the spark plugs 30, which are secured in the
central portion of the cylinder 11.
A bevel gear wheel 31 meshes with a bevel
gear wheel 32 connected with the vertically 95
disposed shaft 33 of a pump 34, whereby
the latter is driven from the cam shaft .36
during operation of the engine. The inlet
manifold 35 of the cooling system of the
engine is connected with the outlet port of 100
the pump 34 and is provided' with a plu-
rality of branches 37, which communicate
with the water chamber 13 of the main cyl-
inder and with a chamber formed in the'
wall of the valve housing 21 for cooling the 105
latter. The inlet port of the pump 34 is
connected with the water outlet manifold
36, which is provided with a plurality of
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Cooper, Willis W. Explosive-Engine., patent, November 19, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1256689/m1/3/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.