Amador ledger., 1910-04-22

injecting Oven for Cars-Meteor
Streams as a Resisting Medium
Troubles OF Insulation.
The use in Germany and Belgium Of
thin belts of steel for driving machinery
has been an experiment of great in
terest The belts, as described by
Reginald Kral to British engineers, are
made from about LIS to rs of an
inch thick and from about 2 to inches
wide, and one 6 inches wide and lao of
an inch thick readily transmits 200
horse power. In manufacture two
serious obstacles have been encountered.
That of obtaining a perfectly homo
geneous steel has been overcome by a
specially-made steel, which is given a
very high temper. The problem of
making joint has been solved by hav-
ing the ends sodered at the factory by
trained men. Brazing was not very
successful and the best results have
been obtained with a solder Of melting
point low enough-not above 200 deg,
Cent.-to have no effect on the temper.
A special steel tape, placed around the
pulleys and stretched to predetermined
tension, is used to find the exact length
of belt needed. Bare pulleys are soon
polished by the bands, and it has been
found better to use a covering of cork
and canvas cemented to the pulleys.
These belts, showing little, wear, are
run at speeds as high as 10000 feet a
minute.
The automatic electric passenger
elevator requires no attendant. Pres
sing the usual push button calls the
cage il not already in use, and when it
stops at the landing the door may be
unlocked and opened. 1t cannot start
again until a lever is moved that
closes and locks the landing door, In
the cage is push-button for each floor
served, and on momentarily pressing
one of the buttons the cage moves to the
corresponding floor, and there stops,
when the door may be opened for the
passenger to alight.
In the novel farming of + Y Rior-
dan, of London, positive electric ctr
rent of 10000 volts or more is sent
throuhg network Of wires at a height
of 6 Is feet, and the nitric oxides pro-
duced are supposed to be washed by at
moshperic moisture into lime spread on
the soil. The nitrate of lime resulting
is one of the best manures
The honor of being the oldest MUM
my, representing the most ancient en-
balming, is now definitely assigned to
one Ranefer, whose remains were found
by Prof. Flinders Petrie in 1891 near
the Medium Pyramid of King Snefru,
dating from about 1900 B. c. Though
the great age was recognized at once,
the mummy was deposited in the Mu
scum of the Royal College of Surgeons
in England, and practically forgotten.
This seems to have been due to the fact
that many mummies as old, and even
pre- e-dynastic, were reported, but late
investigation has shown that there are
no genuine mummes in the Cairo
Museum or the British Museum earlier
than the time of the New Empire,
about 1880 B. C. Bodies embalmed
in the tenth ard twelfth dynasties-2O00
and 2200 b. C.-were found in 1907,
though so fragile that they could not be
moved. The Medium mummy has been
of uncertain age on account of its haV-
ing been found in a plundered tomb, but
DR.. G. A. Reisner has lately made dis
coverles proving that its curious peculi-
arities belong to the. time of the fifth
dynasty, about 27O0 B. c. This gives
the specimen an age 500 years greater
than any other actual mummy known
and 100 years greater than any other in
a museum.
The new sail vehicle of q German in
ventor, described by Consul 7. H. Nor
ton of Chemnitz, promises good results
for speed contests and pleasure purposes
on smooth roads and sandy stretches,
like sea beaches. Unlike early clumsy
sail wagons, this vehicle is very light.
1t has light framework supporting a
saddle and the mast, and resting on four
wheels, one-on either side and larger
ones in front and behind, the rear wheel
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