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POPULAR SCIENCE 361<br />
ment and crushed stone was forced, the<br />
material settHng to the bottom of the<br />
apron until sufficient to close the aperture<br />
was deposited. When the concrete<br />
was sufficiently hardened the pumps were<br />
started, a cofferdam having- been previously<br />
constructed about the submerged<br />
vessel, and it was readily floated and<br />
towed to a drydock, where the concrete<br />
aprou was removed and repairs made.<br />
Develops 1.000 Horse Power.<br />
The turbine has made a new success in the railroad<br />
field in Scotland<br />
Scotch Turbine Locomotive.<br />
New design recently tried at Glasgow.<br />
The illustration shows the hull of the<br />
Collingwood with a portion of the concrete<br />
apron removed.<br />
FIRST SCOTCH TURBINE<br />
LOCOMOTIVE<br />
"PHERE has just been completed at<br />
* Glasgow, Scotland, the first steam<br />
turbine-electric locomotive. The electricity<br />
which actuates the motors is generated<br />
by a dynamo driven by a turbine<br />
engine. Superheated steam is furnished<br />
by a boiler situated in the rear. The turbine<br />
makes 3,000 revolutions per minute<br />
and develops 1,000 horse-power. The<br />
essence of this innovation is the securing<br />
of increased efficiency and consequent<br />
economy and otherwise by adding a<br />
condenser and substituting the continuous<br />
rotary motion of the turbine and dynamo<br />
for the reciprocating action of the present<br />
wasteful engine.<br />
DAINTY AUTOCAB<br />
HTHIS little cab was built for the lady<br />
•*"<br />
who owns it, and was fitted to her as<br />
a tailor would fit a gown, being only<br />
26 inches wide and 56 inches high inside.<br />
It carries her about at any speed up to<br />
25 miles per hour, yet gives her a freedom<br />
of individual movement like beingafoot.<br />
It took eight months to design<br />
and build, and cost nearly $7,000. The<br />
passenger's scat is very low. The door<br />
swings open in cither direction, or may<br />
be removed entirely. The inside is richly<br />
upholstered. There is a hot water heater<br />
under the floor, electric lights inside and<br />
out, handy cases for writing materials,<br />
toilet articles, etc!, silver trimming<br />
throughout. The car can "turn on its<br />
heel" in a four-fc^ot circle.<br />
Much Luxury in Small Spack,<br />
.Xuto built to order that has unusual (eatures.
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