The Hawaiian gazette. [volume] (Honolulu [Oahu, Hawaii]) 1865-1918, 1916-10-13

The second days session of the sugar
engineers convention was an interest
ing one. Before taking up the pr"gern
i. r. Hind submitted data on the Ma
kaweh pan referred to in the discusSi IN
Monday. The rule in Hawaiian prae.
tise is to have twenty per cent of sy.
rup in the pan before the strike. Tie
Makaweh pan works with 245 per cent
syrup, a clear gain of 22,5 per cent over
the average.
water per hour. In average practisr
one square foot of heating surface eva
porates one cubic foot of water. The
Or l2.5 pounds per square foot per hour
The pan is eight feet six in,hrs h1uh
and eleven feet in diameter.
William Ebeling, the veteran sugar
boiler at Makaweli said the work done
by this pan is perfect as it uakcs alb.
solutely uniform grain from top 10
bottom. at does the best work of
any pan / have ever seem he said.
and can finish pan In six draws.
Where to Put the Jacks
With R. Renton Hind in the chair
the discussion was turned to William
Wylhe's report on. milling, the princi.
pal toric~l'eing the best lnc alton for
the hydraulic jacks. The tendency now
is TO place these in steel iackets on top
OF the housing instead of under the
bed-plate. The ehairman's point was
that on top the mill rightly was in.
creased
Mr.. Hind explained the theory as be,
ing that in the new system all the
strains are on the bolts and not on
the housing. With breakage of the
housing eliminated the mills can now
go back to cast iron housings.
II. McCubbin opposed changing the
jacks on top of the mill for a variety
Of reasons, and said there was no gain |
in extraction and decided loss in |
time When a mill is grinding sixty
tons OF cane per hour every minute |
lost means a ton Of cane delayed He
sand 1t takes twenty minutes more to
change the jacks on top of the hOus-
ing than underneath. Joseph Meineckc
insisted that it was just the other way
around.
Top Jack Here To Stay
William A. Ramsay thought IL all
hinges on who changes the jacks, the
engineer, or the Japanese helper. This
is a step in advance and I believe the
top jack has come to stay" he said,
" As a matter of economy every mill
ought to have four or five extra lacks
on hand. Then If the feathers have to
be changed the whole jack can be taken
out and spare one put in Just as
you would change a wheel on an auto
mobile"
Mr.: McCubbin said he had not
changed his feathers for seven wears
and they are still good for another
crop. Also he mentioned record
made this year, having ground $4,000
tons Of sugar without removing his
top rollers. II
Many Advantages II
William Ebelipg thought the top jack
advantageous because il can be taken
out without loosening the kingbolt. Mr..
Weseoatt favored it because it reduced
friction on the kingbolt and Mr.. WI
lie agreed with him. Mr.. Hind thought
the top jack would entirely eliminate
the necessity for using ngbolts.
With the bottom jack there is a loss
in rigidity; with lateral tOrts and
strains and tendency TO break both
The bolts and the housings. With the
Jacks on top the pressure locks the mill
aud makes it absolutely firm and rigid.
Messrs. Wescoatt, Kopke, Cowan, Rem
ION and Duncan agreed with him, : |,
Messrs. Murray, Kinney and Winter
agreed with Mr., McCubbin, favoring
the bottom jack mainly because II
could be more easily got at. Mr.. Hind
slosed the discussion by asking for
committee report on il for next wear.
Bars and scrapers
The material of which to- make re-
turner bars was debated Mt length, and
Mr., Hind frankly acknowledged that
he was wrong in his "steel on steel''
theory a year ago, Cast iron is now
mostly used and not gunmetal bronze.
A suggestion that the metal OF the
Scraper should be according to the
ceived. Al
Hevolvipg knives to prepare the cane