The San Francisco call., 1909-04-13
ELECTRICAL RESOURCES OF
STATE ALMOST UNLIMITED
SUPPLY STORES Do
THRIVING BUSINESS
Every Electrical COntrivance
Nay Be Purchased CheapIy
From Local Dealers

he business or supplying electri-
cal energy for san Francisco has
assumed enormous proportions The
rrsnsmission OF electrical power from
ne swift streams OF the mountains has
facilitated the building Of electrical
roads and has stimulated countless
Other industries that depend on cleo
tricicy for their motive power
The electrical shops OF san Francisco
have for sale every variety OF machine.
instrument and c0ntrivance 10 which
The electrical motive power is applied.
hsse shops DO 4 great business, and
tleir prOprietOrs are men OF sound
technical education. capable OF meet
iug any mechs nical demand which IS
made upon them
Attention should be called 10 the
marvellous possibilities for the genera
ZION OF electric power which have been
SO far untouched in parts OF California
which are naturally tributary 70 san
francisco.
There are probably more resources Of
power IN the mountains Of California
than in any other state OF the union.
E-ecrrlcal engineers say Il has been es-
r-Dsred that the utilization OF all the
power between Mount shasta and Te-
produce 100000 horsepower OF cleo
tric energy. equivalent 10 a little over
91.oo0 600 tons of coal annually. and
worth easily s20o z horsepower. This
means 8. coo. 600 600
Today the electrical engineers state
about se0-oo0.o0 are invested in elec-
rric transmission plants All told,
about Ss0.000 electric horsepower is be-
ing used in San rsncisco and the
northern California towns for light and
power purposes. Electric roads use a
great part Of this power.
All the large electrical supply houses
n the country have extensive branches
1 san Francisco and in addition 10
these are large number Of local firms
whose business is constantly expand
nE
fne inventor and the manufacturer
are constantly ~ work. adding new
wonders 10 the list OF electrical con-
rrivsnces and the san Francisco cleo
tricsI supply houses keep strictly
abreast Of the times among other
slpplies are 70 be found IN abundance
u all the latest improvements Of the
electric light
rwo methods by which electricity
may afford heat are illustrated in o.
dinary electric lighting. An Edison
lamp has a dlsmeut OF carbon which
- resists current as 20 rise 70 a
D. n
in an arc lamp whose two carbon pen
Ills frst touch then withdraw. leaving
between them an are of dazzling radi-
snce- An incsndescent lamp. or course,
demands q vacuum Today the best
lamp OF this kind has Z thread or tunE-
sten OF an efficiency Two and half
times greater than that OF q carbon
Tungsten may safely reach 1850 de-
zrees Centigrsde while carbon may
not surpass 1850 degrees. All OF these
amps may be found n the electrical
stores OF san Francisco
There are all sorts OF electrical con-
trfr-snces desi igned 10 increase the COM
forts % home and 10 Tighten the bur
der Of the busy housewife For the
Kitchen there are coffee percolators.
rrzfuz kettles. waffle irons. I'll heated
u small cost For the laundry there
IS smoothing iron always at the
rfzht temperature and needing no re-
ue1vzig OF heat from The stove. VAR
eues of motors operate clothes wash
rrs v-ringers. sewing machines. dish
washers. buffers 10 polish silver and
racuum cleaners FOR carpets and rugs.
There are fan motors 70 blow CRATE
mi. breezeS when the sumner air is
sruf and hot X is rather difficult
10 imagine any sort OF manual toll
which can not be performed nowadays
hv electrical machines which are 70 be
found in the shops OF san Francisco.
No san Franciscan desirous Of pur-
chssing the latest electrical contri-
rsnce need 20 outside OF this city 10
zet what he requires Every demand
csn be met. in fact. many electrical
inventions have been first put upon
The market in this city.