Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1917-12-05
BOILER INSURANCE HARD TO GET
W|THOUTPROPER INSPECTION Law

tenn was not attractive enough 10 WAY
rant the in! estmeEt.
/ Recent developments n II, manIp.
ulation o. lOW-gr; de massc .itC1 EIaV
cause a change CT opinion Il tAis G.
rCction.'
Repairs
! Commenting on repairs OF suear
house machinery, the committee
states:
Heretofore it has not been the Gus
! tom for this committee to comment on
factory repairs, but since it IS comm N
! knowledge that these repairs rO-.5;i
tutc Il large and increasingly ,mPCr
: tant item in the factory cost Of "Mdn
ufacture Of Sugar, it seems to be an
appropriate subject for discussion
! The entire factory from the build
( ing to the smallest piece OF machinery
is subject to wear and tear, and there
fore to requirements. but that portion
OF the factory equipment which does
the hardest work, and in which the
mos serious and expensive break
! downs occur, is the milling or crush
: ing department. The most powerful
engines, the most complicated gearing
and the heaviest and most expensive
machinery is situated in this depart.
ment, and therefore the greatest
amount OF repairs and renewals occur
here. and TO a much greater extent
| than in previous years because of The
recent improvements in methods of
milling, and the advances in milling
efficiency which have been made
Repairs are constantly required IN
all other departments of factory, but
the cost of these repairs remains prac-
tically stationary from year to year,
consisting mainly of cleaning, renewal
OF tubes, piping, repairs to brickwork,
etc, ETC., so that for this report it IS
proposed to confine discussion to the
repairs in the milling department, be.
cause 1t is in this that great increase
in expense has taken place In late
years:
The introduction OF the Messchaert
drainage groove in 1914 marks the be-
ginning of a notable increase in the
extraction OF juice obtained by cane
crushing mills used in this country.
One OF the reasons why the Mess.
chaert groove when applied to a cane
crushing mill, produces an increase in
the extraction Of juice from the cane
is because it (the groove) so increases
the grip on the mat of cane or ba-
gasse, or what amounts to the same
thing, so prevents slipping, that the
rollers can be set much closer to.
gether than when these grooves are
not used. This. being the case it is
obvious that where the grooves are in
use the mill is very liable to be over.
loaded, and the frequent breakages OF
mill rollers, mill cheeks and gearing
seem to point to the fact that mills
are at times overloaded to a consider
able extent; with close setting Of the
mills any piece of metal entering the
rollers with the cane causes a mucn
greater strain on the machinery than
when the rollers are set further apart,
and closer setting of the rollers de.
mands greater power in the driving
engine, which In turn produces a
greater strain on the gearing, and as a
consequence greater liability to
breakdown of serious nature.
In consequence of experience
gained during the last few years it has
been found necessary to alter and
greatly strengthen the design of mill
checks, intermediate gearing and tho
size Of roller shafts and power Of driv-
ing engine, while different qualities of
material in cast iron and steel for the
rollers themselves have been sue 2ass.
fully experimental with.
1T is hardly necessary to point out
that excessive repairs in the milling
equipment such as have been TIC re-
cent experience of some factories, Gre
due to the endeavor to obtain 10.
creased yield of juice from the cane
with weak and inadequate equipment
OF olds design; the expense ATTENDING
current and permanent repairs in
such cases added to the loss of time
and delays in harvesting the crop,
sometimes more than offset the gain
made during the season by the In.
creased quantity Of juice extracted.
and there are cases in which. II is an
open question whether or not it be
better financial policy to scrap an en-
tire milling plant rather than attempt
to add on or build up an old design by
stronger parts or requirements.
1t is of the first Importance that
steady and continuous operation of
the machinery in the milling depart.
ment of sugar factory be assured,
and this can only be done by substan.
tial repairs carefully carried out.
This committee In thus drawing
attention to the matter of factory re
pairs does so for the purpose OF invit
ing discussion, and hopes that valu.
able hints and information Y,a1, r,.,,,.