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516 Suppressed Inventions and Other Discoveries
takes place. As the piston is forced down the exhaust port is opened, and
the incoming charge forces out the expanded gases.
There is no combustion in the cylinder, though hydrocarbon gas, escaping
the exhaust, explodes on uniting with atmosphere.
The engine has been operated with equal success on mineral, animal,
and vegetable oils.
SEWER GAS SERVES AS FUEL
From Modern Mechanix
Municipal trucks and other heavy vehicles operating in Berlin, Germany,
are being equipped with motors that enable sewage gas to be used as a
fuel. Several sewage gas tanking plants have been erected, where the gas
is compressed and stored in tanks for future use by truckmen.
Three of the tanks, each with a capacity of 500 cubic feet of the sewage
gas, will operate a five-ton truck at normal speeds for a distance of about
225 miles.
LIFE-LONG BATTERY STARTS TEST CAR 606,969
TIMES IN YEAR-LONG "TORTURE TESTS"
By Dr. J. Morgan Watt
From Science and Mechanics
Here is a story typical of how American ingenuity is constantly at work to
create new products that make life simpler and easier for all of us. The
beginnings of the story go back more than 100 years to the original
European invention of the storage battery and its gradual development and
improvement. Thomas Edison predicted a lifelong battery as long ago as
1889. But it was not until World War II that a captured Rommel tank
revealed that a remarkable battery had been perfected, good for an incredible
40 years or more of service!
Readers Digest told about this German-type battery in 1948. They also
reported on the action of the U.S. Government in breaking up, through the
Sherman Anti-Trust Act, the international cartels which had prevented the
manufacture of the European battery in this country. About two years ago,
an American company finally marketed the Life-Long 10-Year Battery,
the logical outgrowth of the most advanced European and American
developments. The American-made Life-Long Battery compares favorably
with its European predecessor.
In addition to the manufacturer's own rigorous test program to prove
this, independent laboratories investigated the new battery thoroughly.
For example, a leading commercial laboratory subjected a Life-Long Battery
to one of the most unique series of torture testa ever devised. Every
15 seconds, day and night without pause for 12 long months, the battery