The Mount Holly news. [volume] (Mount Holly, Burlington Co., N.J.) 1891-1942, 1918-08-13

ton. The speed at which the different
parts should run and the power re-
quired to drive them are carefully cal
culated
The pulleys must be kept in line so
that the entire surface of the belt will
run on them if all the power is to be
transmitted. Also the strain on belt
is much greater If it is allowed to pro-
ject over one side of a pulley, and
thus be pulled across the rim. A belt
will not stay on the pulleys unless the
shafts are parallel. If belt is too
loose, there will be a constant ten
dency for 1t to slip on the pulleys and
the parts which it drives will not have
their proper speed. Such belt also
tends to run off the pulleys and wear
out the belt and the pulley facings.
On the other hand. belt should not
be too tight.
Whenever the tagging comes off a
pulley, 1t should be replaced imme-
diately. Covered iron pulleys have
considerably more adhesion than I'M
covered ones of the same size with the
same belt tension. The important
thing in covering pulley is to get the
leather or other tagging as tight as
possible. Otherwise is will soon pull
off again. Obviously, the nails or riv-
cts should not be left projecting above
the surface to injure the belt.
Running Leather Belts,
All leather belts should be run with
the grain or hair side next to the pull
ley. The outside Of belt must stretch
O little every time It goes over a pull
ley, and. IS the flesh side is more elias
tic than the hair side, the belt will
last longer If run in this manner. Also
the grain side is smoother and will
transmit more power because it brings
more surface into actual contact with
the face of the pulley. A leather belt
which has become dry and hard can
be made soft and pliable again by
cleaning 1t thoroughly and applying
:neat's-foot oil. castor oil, or some other
reliable belt dressing.
Rosin or mixtures containing enough
rOsin to leave the surface Of the belt
in q sticky condition should not be
used to keep belt from slipping They
will make the belt more adhesive for
a short time, but 1t will soon become
glazed and slip more than before the
rosin was applied. Lubricating oil is
injurious to all kinds of betting, which
should be kept as nearly free as pos
,sible from this substance. A leather
belt that has become saturated with
oil can be restored in large measure by
,scraping it as clean as possible and
packing 1t ip dry sawdust for three or
four days. Sponging the belt with gas
, oline, or even dipping II, viii remove
the oil quickly. Too much gasoline,
however, may take all the dressing out
of the belt, and If 1t seems too dry
after the gasoline has evaporated,
more dressing should be applied. OIL
can be washed off rubber belt with
soap and water without injury to the
belt.
The lacing of belt should be such
that it will pass over the pulleys with
little or no shock or jar, A lacing
should be fastened otherwise than by
tying knot, especially if the belt runs
over an idler or tightener
Service of Separator.
The. total amount of service which q
separator will give depends more than
anything else upon the care andsoiling
of the bearings. This is especially true
OF steel separatOrs. Before the ma
chine is started on the seasons work,
it is imperative that it be gone over
carefully to see that all journals and
boxes are in proper shape and plenti-
fully supplied with oil. Since the sep.
aratOr has so many parts which move
at high rate Of speed and the whole
machine is subject to constant strain
and vibration while in motion, any
parts that are not perfectly solid and
tight are almost sure to give trouble
before the season is over The failure
of any one part will stop not only the
machine, but the entire thrashing crew
as well. .s.>.'> ~ = .-----
A good grade of oil should always be
used. Oil of inferior grade will cause
more wear on the bearings. and may
necessitate more frequent stopping.
Lengthening the working life of ma
chine as expensive as separator by
even a few days, or the saving of only
q few hours time by the crew, will
more than pay the difference between
the cost Of inferior and high-grade
lubricating oil A good grade of light
oil will cover the bearings which it is
intended to Intricate more thoroughly
and quickly than will thick, heavy oil.
In hot weather. thicker and heavier
oil can be used more satisfactorily than
Is possible in cold weather. A Bearing
is more likely to be continually lubri-
Gated when. small amount of oil is
applied frequently than when large
quantity is applied at rare intervals.
II oil is applied to bearing while the
machine is in motion it will be quickly
and evenly distributed over the bear
ing surface.