The Virginia enterprise. [volume] (Virginia, St. Louis County, Minn.) 1893-19??, 1900-08-10
USES: or COMPRESSED AIR.
AS Machine Lubricant and LOGON O
tive Fire Kinder.

+. 1--WE FIRE hlndler.
Among the many uses of air that for
illustrating the action CT a lubricant in i,
journal bearing in machine is one of
the most recent, and has been found very
satisfactory. This machine consists of =
steel piston or short shaft to be rotated
ana a 1astlron ring or cylinder which acts
as bearing for the shaft, the whole
beng supported on rollers mounted on Il
suitable frame. The shaft weighs fifty
and one-half pounds, is six and one-quar-
ter inches long and six inches in diam
eter. and its weight constitutes the total
downward pressure on the bearing The
than 10000 of an inch larger than tn,
shaft, Both cylinder and shaft are
ground exactly parallel.
The cylinder being set horizontall;
must be thoroughly clean and dry, and
the, shaft ALSO when inserted. 1t is ro-
tated WITH the band by, handle at the
end. At first the harsh, grating sound
Will be heard, and it turns with difficulty,
but by increased speed the grating ceases
and the power required to turn the shaft
is materially decreased until after a few
revolutions the shaft will be entirely free
him OF air between them. If making 500
revolutions per minute and the power
was stopped, it would continue to rotate.
about FIVE minutes, then the speed de-
creasing the piston would come in con
tact with the cylinder and with few
more revolutions come to a sudden ston.
An, interesting test which gives con-
elusive proof t,lat the shaft is rotating on
the film Of air between itself and the evil
inder is mace by forming Il circnit with
an electric bell. of which the shaft is one
| terminal and the. cylinder the other. An
almost continual ringing Of the bell will
| occur at first, which will gradually stop
and it will be silent as long as the shaft
rotates at any considerable speed
Anoi her use OF compressed cir which is
| attracting considerable attention is for
kindling. fire on a locomotive A tank
is placed on Il truck so as to make it con-
venlent to move about the roundhouse.
Attached is hose coupling for conncc-
ton with the compressed air system or
with the main reservoir of the engine.
| ard 4 hose terminating in a nozzle for
spraying the mingled oil and air and a
valve fol: controlling the relative proper
! tons. This valve is a very novel fcaturr
through and any oil adhcring to the out
side of the tube is removed The fires
| III about forty engines can be kind]pd
from one tank OF Oil. as it holds twenty
five gallons 10 raise sufficient heat to
move the engine under it's own steam
about forty-hve minutes is required
when the engine is cold, but if still warm
it may be accomplished in twenty-fyp
minutes.
The portability of this kinder and the
intense heat generated by it's flame make
it very easy to operate: When the con-
nections arenlade a handful of oily waste
is lighted and thrown into the ashpan to
START the flames. The nozzle. which is at
the end of a long tube. is placed in the
pan and the flame passes up through
the fuel until the latter is wholly ignited.
The tiredCor is kept closed to prevent the
admission of cold air and causes the
draft to pass up through the fuel. This
is found to be a decided Improvement
over the old method of blowing through
the iredoor with the jet of flame strik-
ing the tirebox sheets. Less injury is
said to be done to the inner sheets than
is done by a wood fire for kindling.
The. same apparatus is also used as a
b}oMp.pe, in Strengthening flames and
heating tires The heat in this way may
be applied to the needed places without
affecting those adjacent.-New York
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