The San Francisco call., 1906-09-02

four and one-half inches. with slide
valve. The piston rods and valve stems
will be one-sixteenth inch larger in di-
ameter than the old ones The engine is
the same general style as the last one
POWER WATER PUMP.
There will be two large power water
pumps as in the former model. butt both
will be heavier and larger. As stated
above. they will be very accessible
CONDENSER
The condenser on this car will be by
far the most efficient that has ever been
turned out. The condenser tubes will
be considerably larger and there will
be fan nearly two feet in diameter
driven by double belts and through a
greatly improved shaft. The can looks
like young windmill The eccentric
for the condenser pump makes possible
a greatly improved pump, which, with
the air pump. will be on the opposite
side of the engine from the power water
pump and attached very similarly to
the power water pump. This does away
with any necessity for slot in the low
pressure crosshead guide. and there will
be no waste of oil in the crank case ex-
cept through the top of the crosshead
guide
WATER HEATER.
The efficiency of the condenser will
be further increased by feed water
heater. formed by conducting the water
from the power water pump through
chamber into which the exhaust steam
from the engine passes on its way 10
the condenser. 1t looks as though this
would remarkably increase the con-
denser efficiency. A man ought to run
a week on one tank of water if he were
doing moderate running. This also
heats the feed water before il goes into
the generator and the fire has to do less
work. 1t is expected that this large car
will be fully as economical as the model
+" on gasoline consumption and much
more so on water.
GENERATo
The generatorswill be the same style
as the former models. but OF the size
of the one used in 'Whistling Billy and
the Vanderbilt cup racer.
BURNER.
The burner will be larger and much
improved in detail. A shutter mas been
devised very similar in appearance to
rotary draft or damper on a stove. This
is not furnished as part OF the regular
equipment, but can be had If desired
For high attitudes and very cold wealth
er better combustion is obtain ID by
closing this a little and thus reducing
the volume OF air taken into the burner
GASOLINE TANK.
"As stated before, the gasoline tank
is carried in the rear of the car and the
main gasoline valve will be in the rear.
Instead of working into the gasoline
tubing ii works into the tank and shuts
off the gasoline right in the tank itself.
AS an additional precautioa. All aeto-
matte shut-off valve has also been sup
piled which will shut off the flow IF
gasoline if the piping should break and
thereby allow the flow of gasoline from
the tank in any unusual quantity. TBis
is an exceedingly simple device. COM
posed OF ball check which works up
ward to seat, as Ions IS the gasoline
| is flowing out of the tank in merely
normal quantities there is not force
! enough to drive it into its seat, but If
there should be a break the flow would
instantly seat the valve. / do not see
how 1t would be possible for any car
which does not handle gasoline under
considerable pressure to use device
like this. and it should make the White
car the safest on the market
THROTTLE.
"A new throttle will be used which
will shut off the steam before it reaches
the throttle stuf1ng box. In other
words, when the throttle is closed there
will be no pressure at all on the stuff
hng box; there should then be no water
or steam leak from the stuffng box in
consequence.
1 W Eh-
The model G. car will be rated at
thirty horsepower but that is by no
means Its limit. Professor Carpenter Of
| Cornell University made brake test Of
| the Identical power plant used in the
| e car and ran it up to forty-five horse
! power when his brake broke and he
was unable to continue the experiment.
| further At this time the engine was
making only $50 revolutions per min
ute, using 500 pounds of steam and
sixty pounds of air.
EFFICIENCY.
I'm connection with the efficiency test
| just mentioned, Professor Carpenter
conducted an efficiency test and found
that on light loads the car used about
| eighteen pounds of water per horse
| power per hojr. on heavy loads from
twelve TO thirteen pounds The fuel used
! is about one pound of fuel TO ten
pounds of water. This was. of course.
( without condenser. These results.
taken in connection with the feed
water heater. the improved pepper-box
nozzle and the vaporizer. ought not to
increase. the gasoline consumption on
the G car above that of the r.
..The remarkable circumstance of the
development of the White system is
that while the car has been developed
from the primitive Stanhope to a heavy
seven passenger road car 1t has all been