The Hawaiian gazette., 1914-07-03
new SYSTEM
MEANS BIG
/. SAVING

Messchaert Groove, Latest Discov-
cry in Principle Of Sugar Mill
Mechanics May Be Universally
Adopted Increases Extraction
Two Per Cent and Output by
Fifteen Per Cent,
William @, Han, manager Of Cation,
Neill and Company, has secured the
sole agency for the Messchaert Groove,
for which American and foreign patents
have recently been issued, IT gives
promise Of replacing the old system Of
crushing used in sugar mills
The Messchaert Groove is described
by Mr.. Hall as being discovery rather
than invention. The discovery OF this
new principle In min mechanics Il Al.
eady generally recognized as one Of
he most important advances made In
ugar milling in recent years.
IL has been widely adopted In Ha-
vail. The first Messchaert roll was IN.
tailed in the Oahu Sugar Company's a
NIL AZ Waipahu Christmas Day, 1913.
m June ~, ninety-seyen rolls provided
vlth tins Improvement were in use in
iractically all Of the larger sugar mills
this Territory and twentysthree are
| n operation elsewhere. et
| 4. A. @. Messchaert, chief engineer
II the Oahu Sugar Company discovered
IND has patented this mechanical prin-
J iple. The patent is a broad one ap-
1heable to all machinery which ex-
racts liquids from any substances by
pressure between rollers. Hence this
latent will not necessarily be linited
It's application to sugar milling ma
shinery.
/ History Of Discovery.
Mr.. Messchaert has prepared n brlef
history of this discovery for publica-
ion In one Of the technical ioufnais,
The discovery resulted from long
cries Of observations on the moistare
ontent Of the baRasse at different
g,uinf anint fhprc,,f, ~ = e'.,lll
studies were also made Of the stresses
developed in the rolls.
In part he states that s'fhe first
ynIptom observed where mills work
)oorly is that the bagasse shows wet
n spots, caused by an accumulation Of
luiee in break In the blanket as it
passes between the top-roll and the
feed-roll. This break is not filed np on
the returnef bar Consequently The
blanket is thinner and breaks at that
! place when i passes the discharge
roller.
"If the top-roll is very smooth i'm
places the break in the blanket will
be large on. account Of the greater alp.
The quantity Of juice accumulated at
that spot will be shot out at the first
relief Of pressure
i Where Remedy Was Needed.
Messchaert dedueed from this that
Z. the blame did not rest with the trash
, plate as other observers had supposed
He believed that the remedy would
have to be applied at the point .oi
greatest pressure which is at the point
of contact between the top and feed
oil. The first attempt TO remedy this
vas to keep the roller surface rough
ind prevent slipping. Frequent changes
| lf rolls was made, the old o1es beinl
sakeB ont and resharpened whenever
. they became smooth.
I An intermediate canvass belt carrier
, vas also tried. Belt carriers wer,
placed between all the mills III.
weNe.roller set, the bagasse from tn,
rusher feeding into the first mill on
feed plate.
The carriers did their work we'll ex
,ept that when working ut maximum
'apacity they closed the only outlet 10
L a.
, top Of the feed-roll. Hardly any iuicl
!, was extracted BY the feed roller, Oh
! bulk being carried over the returne
! bar leaving practically AL the work b
! be done by the discharge roller. m
result was drop In extraction. Their
!, was an increase in moisture content o
l the bagasse, contrasted the old metho
! worked at the same rate Of milling
! Second Remedy Unsuccessful.
J The next remedy that he tried wa
y TO devise method Of pumping out tn
~ Juice from in front of the feed an
y top roll. This was unsuccessful but
gave him the idea that he has develop
! ed into the patented Messehaer
i Groove.
lie says After we put ia fftee
$ cireumferential grooves one and thres
D. quarter inches deep, three-eighth Of a
e inch wide on the feed.roll Of Min Fonl
= the success Of the idea was fully dem
y onstrated immediately. While the oper
= ing between the top,roll, feed.roll an
! 1rive,roll was kept choking fun as b,
ie fore, the bagasse simply fell on IN
feed-roll and fed into the mill withou
~ the least effort, after the juice groove
* were installed. -
y Principle Explained. =.
4 He says that the philosophy Of II
N this: When there are no Juice groove
i. the juice has to run up hill TO get o.
is and thus forms little pool on top Z
nj the feedroll. The bagasse feeding ini
the mill has 20 force its way dow
" through this pool against considerab
ty stream pressure operating against Il:
he "It is VERY much like two nersoI