The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1937-10-07

Convicted heat-the kind given off
by open fires and hot air furnaces
produces warmth by heating the
air. On the other hand, it was found
that radiant heat consists of rays
which warm the body without nee
essarily having much effect on the
surrounding air.
AS the result of this research, and
Investigations by scientists connect
ed with other industrial concerns,
engineers have found the answer to
widely-varying problems in heating
brought about by changed condi-
tons of modern living. They have
conquered the difficulties of install
ing IS miles of steam conduits be-
meath the swarming arteries of traf-
fic in New York to pipe warmth
from central heating plants to 1000
office and residence buildings. On
the opposite end of the scale is
the successful installation of sep
arate heating system in a bird
house.
Aforementioned Bird House.
The steam-heated bird house,
probably the only one in existence,
is the property of California wom-
an. In training canaries to sing,
she found it most effective to keep
them shut up in large outdoor
houses, completely insulated against
outside noises so that the birds would
hear nothing but the sound of phono-
graph records being played. This
brought on the problem of air-condi-
tioning the bird house, and a COM
plete ventilating and steam heating
system was installed, with steam
heat pipes enclosed in the walls.
Managers of the nations trans
continental anyways, faced with the
difficulties of passenger comfort on
winter flights, took their problem to
heating engineers, who have devel-
oped unique system for warming
the huge passenger planes that now
roar across the sky trails.
AS the result of scientific research
and experiments, cross-country
planes this winter will be warmed
by flying steam heat" designed to
maintain temperature in the cab
ins of at least 10 degrees even dur
ing the coolest weather. The flying
heaters, which weigh only 140
pounds, produce enough steam to
heat a fve-room house on the
ground. Using only eight quarts of
water, the miniature boilers are
heated by exhaust gases from the
engines, and the temperature is reg
ulated either by thermostats, or by
controls in the pilots compartment.
Provision is made for a complete
change of air in the transport planes
every four minutes, so that the at
mosphere does not become 'stuf-
fy."
Thawing Out Iron Ore.
Before the take-off of each flight,
and before the exhaust from the en-
gines has had a chance to start the
steam heater in operation, the inte-
riors of the huge planes are warmed
by special mobile heating units,
maintained at the airports. These
units, mounted on small trucks,
pump warmed air into the cabins,
thus bringing the temperature to
the desired level before passengers
enter the ship.
Not only is human comfort in the
wintertine dependent on scientific
developments, but the business life
of the nation as well, for industrial
schedules must be maintained de-
spite weather conditions. Here
again, research experts in one in
dustry came to the rescue of an
other when engineers of the B. F..
Goodrich company solved stub
born problem at the root of all in
dustry by making it possible to ship
iron ore in zero weather from the
Great Lakes district.
On the shores of Lake Superior,
where snow and ice close in while
the big ore boats are still running,
carloads of wet iron ore freeze into
solid chunks before they can be un-
loaded. To meet this emergency,
the engineers devised hose of spe-
cially compounded rubber through