Grand Rapids herald., 1892-01-15

siderable attention to perfecting the
valve gear of engines. They wish TO
enconomize on the space in the piston.
Formerly at least two inches has been
allowed between the piston and the
cylinder head; now we make our
engines with only one-fourth of an
inch space. Electricity is the coming
thing in pumping outfits. Little atten-
ton has been given to this until
recently; but some rapid advancements
will be made along that line. There is
no reason why city shouldn't
light its streets ard furnish its
water supply With the same
motive power. The same dynamos
that furnish the Light can be used to
operate the pumps. As rule these
dynamos can be run by water power
too. The only trouble is that water
power can not be regulated the way
steam can. When any considerable
number OF lights are turned Off at
once, the current Is liable to be in
creased to the extent that many of the
other lamps will be burned out. How
ever many electricians are at work
upon the practical methods of increas-
ing the resistance as the lamps are
shut Off. This of course applies to the
electric light outfit; there is no reason
at all why the pumps shouldn't be
operated by electricity, and in my
opinion that Is the coming thing"
"What is new in New York politics?'
asked the reporter.
"We haven't any politics IN New
York. Dave Hill seems to have 1t all
now. What little he hasn't captured
he will have in few days. 1t is Won
derful the hold that man is acquiring
over the politics of the state. lie is
rapidly dispiacing Cleveland in the
minds OF the democrats. It's my opin-
ion that Hill can carry the state against
anyone. l dislike to admit it, but
believe it to be true. Tie is a wonderful
politician, bs1t when you have said that.
you have said it ALL"
The Valley City's New Pnmp.
Mr.. Holly is in the city on business
connected with the purchase which the
city has Just completed from his COM
pany OF magnificent new pump and
engine, of which the accompany
ing cut is a good representation.
The engine will be fac similc OF
the one to be sent TO the Worlds Fair.
The pump will have 4 daily capacity of
10. 900, 900 gallons, ut a speed not to ex-
ceed 100 feet a minute. IL Is guaran-
teed to run safely ut = speed sufficient
to supply II, 1000. 900 gallons IN twenty
four hours. Its guaranteed duty is
equivalent to los. .000. 900 foot pounds.
while pumping at = speed of 100 feet
per minute against head of 1Se feet
from the source of the supply To the
highest rise n the reservoir. including
the friction IN the line of pipe.
The engine will be finished in the
latest design. A deck will extend in
front Of the cylinders. along the side of
the engine and back over the pumps
A brass hand rail and stsnchIons will
take the place of the side steps shown
in the cut. The engine will have two
high pressure cylinders, each twenty
seven inches in diameter. aud two low
,ressure cylinders, each fifty.four
inches in diameter. Two double ac-
ton pumps will be used; each will be
thirty inches in diameter, and all VIII
have o forty inch stroke.
Steam u admitted through the auto
matte cutoff valves into the high pres
sure stcam cylinders, urging tue pistons
forward under full boiler pressure un-
oil the point OF cutoff IL reached. The
admission vaive then cleses and the re-
naming portion OF the stroke - &C
complained BY she elastic force of the
steam. When the piston has nearly
reached the end OF is travel, the En-
hsust valve between the high aud low
pfessurs cylinders opens aud the steam
remaining ia The high pressure cylinder
rushes into the low pressure cylinder
and against u plstsn, wheh az thss
time 10 % ths end Of its tfavei and a.
The opposite OF the high pressure ps-
ton. Tns lex pressure eyhadsa psslsn a
tgsen ia tefs aFsst iSr~ard ~ thss ~
egains ssSsas, which = - sbsasied - fs7si :
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~ fAeAsss 5f tas enAast .vlNgs - tas
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