The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1898-06-21

Q. the fails. where the water viii re-
enter Tie r,rsr.
The Transmission system.
From the generators n ;Ae great rock
Chamber wires viii stretch up The shaft
10 the surface. wsaere !. series Of ssep-ap
trans formers vi Increase the voltage
for transmission IN tbs paint Of coasuEnp-
i.oa. Two complete eIFcu =. eaca CT three
No. copper wire. VA exssad % Seattle,
SsSz miles 4 slant from the fails. aad no
c~rc4atS- Ell = OF three No. j copper wirss.
viii extend TO Tacoma. All miIss. The
four circuits viii be carried on tire same
poe HE fgoEn the fa.ls 70 kealon. az the
south end u Lake Wa sai2gtan, As miivs
distant. and there separate po,es will a.
verge 20 each city. where. ca entering
sua-s.2ttcus. step-g:own trans oraar Will
change the current from a h gh 70 low
voltage
The plan OF distribution. at present con-
tsIp.ated. IS 10 sell he power ov whole
sale 70 aacal companies, which viii in turn
adapt u FOR The several purposes OF power.
arc lighting aa9 iacan descent lightning,
and retail i to the consumer In this man
ner the lines OF wire NOW stretching
through the streets win &c Incorporated
w-aA iae Daw system and the necessity
OF erecting Rsw poles and stretching new
wires wlli be avoided.
The Work of Construction.
The work OF construction OF the head
work began sboct tina middle Of March
ard Is now prosecuted continuously by
seven:y-fEe men. It has made such good
progress, and - being pushed with such
good mana cement and v.gor that IRE COM
pauy viii be ready 10 deliver power n
hota cities by the end OF November. The
first work Gcne was the erection Of
cGer dam fifteen fees high around .ha
proposed noalh Of he shaft. As pro
lection against feeds In case % i rise IN
the river. ON March Is the machinery
began 10 ar--Te over the Seattle IL Inter
national ra.road. which runs from Seat
tie along the south bank CT the river. 81
rectiy adjacent 20 the sce2e Of operations
This machinery. although only 10 be
used in the wcYx CT construction, is as
large and complete as any mining COM
pany could css.re. There are NO big
tubular economic boilers Of Us horse
power each. with Two good feed pumps.
A double friction dyGsa ard brake hoist
ing engine. Of IS horsepower Nfita revers-
iole Ink motion, raises e.SaD pounds from
the shaft a. the rate of 40 .ee- per mn
ute on one drum. each drum working
separately. The r0ck IS raised on I'M
proved safety platform cage, suspended
BY wire rope. OF ushieis there is GO feet
OF each drum. The engine raises the rock
taken from the shaft 20 tower fifty feet
high which has been erected directly over
tbs mouth. From .his .ower the rcck VII
be carried by 4 gravity tramway 10 a
crushsr when has been set up on bench
forty 10 Fifty feet wide. half way up the
bank from the river TO the railroad track.
ana when Il. ten hours VII crush seventy
cubic yards 10 size o. one and one-han
inchcs. beng operated ~ a 10 horse power
or engine The rock Will be piled on this
bench f3r use n building the dam ard n
take which VIII 30 the last step p:eim-
mary 10 Installing the machinery.
The mining is done by ten Impressed
air drills the power for which is FUR
nished by : class \ fngersoil Sergeant
compressor. 1t sucks IN 800 cubic fee; OF
ar per minute ami produces an ar pres
sure OF Ie) pounds per square inch- The
compressed air passes into an iron receiv-
ing tank. four and one-half fact In dam
etcr By twelve feet high, whence II -
distributed through iron pipes down tpe
shaft ard into the tunnel For the last
twenty feet the pipe branches to each OF
the several drills which work SIDE by side,
and Is made OF wire-boend rubber to Sc
cure ieSibility The drills are the aew
IngeYson ISas model. eacr forty eight
inches long and, with sixty pounds Of