Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1916-10-09

| steam pressure, moisture OF the steam
End yiscosity must be taken into con.
sideration. OIL Of too high a fash and
burning point viii not give proper In.
brication, any more than one with too
low. The steam in the cylinders is
more or less wet and il therefore be-
comes necessary TO use an oil which
contains some animal oil or fat in
order To take care OF the moisture.
The great majority OF cylinder and
pistol troubles are due to improper
| fabrication frequently caused by the
| oil used not being suited TO the con-
| dtticns and ii sometimes happens that
| the trouble Is not with the oil itself
| but with the method OF applying the
oil and the place where the oil is ap-
piled. II is quite a common practise
to reduce the quantity OF cylinder
oil used to the least possible amount
| thereby cutting down the oil bill and
in many cases this increases the frfc-
ton Of the engines, scores the cylin-
ders which increases the fuel bill and
instead Of economizing by reducing
the cost of fabrication, increases the
operating expense by using more fuel
and in repairs, etc.
No matter how little cylinder oil
you are using, far better results will
be obtained with a smaller quantity,
drop for drop at lower cost, by using
suitable oil with a force feed lubri-
Gator. The sight.feed or hydraulic lu-
bricator has served its purpose, and
to get better results, force feed lu-
bricator, which makes it possible to
regulate the feed by applying the same
amount on each stroke and remains
constant after ii is once set, should be
Used. We have found a saving Of from
forty to fifty per cent with force feed
lubricators. II therefore pays to
place the oil in the right place and you
will naturally require less oil, and
the same applies in the case of your
vacuum pans and boilers, which will
have less oil to contend with. ~,
II an open feed water heater or hot
well is used, the cylinder oil finds its
way into the boilers and the animal
fat in ordinary cylinder oil causes
coating on the boilers. If graphite is
used In combination with pure min
eral cylinder oil, the graphite will find
its way into the boilers and tend to
prevent the formation of scale
The thickest and best cylinder oil
becomes thin when heated so that 1t
squeeZes out from between the sur
faces 1t is supposed to Intricate. 1t
has been our custom for years to use
graphite in our main steam cylinders,
thereby cutting the cost of the oil to
a very low margin and yet maintain
ing the smoothest surfaces on the
cylinder walls, piston rings and rods.
This reduces the friction which is the
real reason for fabrication. 1t Is not
necessary to use great quantity of
graphite, for a small amount mixed
with the oil, or dry graphite fed d.
-ectly in the cylinders. will thereby
reduce the quantity OF cylinder oil to
a great extent.
Cylinder Oil Test ..s
A careful inspection Of the surface
of the cylinder, piston and valves
should be made and cleaned OF all de-
pOsits. An accurate record should be
kept of all running time and the oil
should be weighed and the feed ad.
justed to give the minimum amount
that would effect smooth and quiet
operation. At the close of each test
second inspection should be made and
observations taken as to the condition
of valves and cylinders Each sam
pie of oil tested should be reported
and data should be compared with
other samples. @-s.
Engine Oil e..
During 1913 there was installed at
Paia by Mr.. Paul Melchard of the
Standard Oil Co. a lubricating system
which has proved very successful 1t
consists of a 100-gallon drum placed
over the main engines; pipes we're led
from this drum to each cup on the
main engines and fitted to a u inch
cock to regulate the flow of the oil to
the bearings. The drip pans of the
engines were made oil tight and drains
led from these pans to a filter from
which 1t is pumped to the main tank |
above the engines.
A continuous stream of clean, cool |
oil is supplied to the bearings. A |
large quantity of oil is used but this
oil is collected, filtered and used over
again thereby saving an enormous
amount of oil which would otherwise |
be wasted.
The proper fabrication of power |
plant is worthy of the most careful |
study. The cost of operating an ex-
pensive engine may be reduced below |
that of cheap one simply because
the latter Is not properly fabricated. |
Without the right quantity of oil be-
tween the two rubbing surfaces, there |
will be friction loss which goes on
das by day, which means an increase |
in the fuel bills. This may not be |
noticed in some of the sugar factories |
where they have an ample supply of |
bagasse, but where bagasse and boiler
capacity are barely sufficient, and |
where fuel oil is used, as in many of |
the large factories, any unnecessary |
friction will increase the cost of pro-
duction
Test for Engine Oil /
II may not be out of place to men,
tim NJ fhic time thot hof0ro 0ivipcy Il