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Page 17
SUMMARY OF STATEMENTS OF L.& N. AND E.T.,
V.& G. RAILWAYS.
The mileage changed of the L&N. and E.T., V.& G.
systems combined aggregates 3,622 miles.
The total cost of these two roads. $331,492.59
Or an average per mile of 91.52
Total miles changed was about 14,500 miles.
Which would give total cost, at same rate. $1,327,040
We should really add to this a large sum for the great number of new
locomotives which were purchased to replace old ones, that could not
be changed, except at large cost, and which, when done, would have
been light and undesirable.
Upon the basis of the work done upon the L. & N. and E.T., V. & G.
systems, which, combined, cover about one-fourth the mileage changed,
we have made the following estimates, which will, perhaps, convey a
better idea of the extent of the work than can be obtained in any
other way:
Miles of track changed, about 14,500
Locomotives changed, about 1,800
Cars (pass, and freight) changed, about 45,000
New axles used, about 9,000
New wheels used, about 20,000
Axles turned back, about 75,000
Wheels pressed on without turning axles, about 220,000
New brasses used, about 90,000
Kegs of spikes used, about 50,000
Cost of material used, about $600,000
Cost of labor, about 730,000
Total cost of work, about 1,330,000
Amount expended on equipment, about 650,000
Amount expended on track, about 680,000
Amount expended on track on day of change in labor, about 140,000
The work was done economically, and so quietly that the public hardly
realized it was in progress. To the casual observer it was an every
day transaction. It was, however, a work of great magnitude, requiring
much thought and mechanical ability.
That it was ably handled is evidenced by the uniform success attained,
the prompt changing at the agreed time, and the trifling inconvenience
to the public.--_Jour. Assn. Engineering Societies._
* * * * *
TORPEDO BOATS FOR SPAIN.
In our present issue, on page 9948, we give illustrations of two
torpedo boats, the Azor and Halcon, which have lately been constructed
by Messrs Yarrow & Co., of Poplar, for the Spanish government. They
are 135 ft. in length by 14 ft. beam, being of the same dimensions as
No. 80 torpedo boat, lately completed by the above firm for the
Admiralty, which is the largest and fastest torpedo-boat in the
British navy.
[Illustration: TORPEDO BOATS FOR THE SPANISH GOVERNMENT.]
The general arrangement of these torpedo boats is sufficiently clear
from the illustrations to need but little description. Suffice it to
say that the engines are of the triple compound type, capable of
indicating 1,550 horse power, steam being supplied by one large
locomotive boiler, which our readers are already aware is in
accordance with the usual practice of the makers, as, by using a
single boiler, great simplification of the machinery takes place, and
considerably less room is occupied than if two boilers were adopted.
It is worthy of record that although in some torpedo boats, and indeed
in a great number of them, trouble has been found with the locomotive
type of boiler, still we have no hesitation in saying that this is due
either to defective design or bad workmanship, and that, if properly
designed and constructed, such difficulty does not occur. And it is a
fact that Messrs. Yarrow & Co. have already constructed a great number
of locomotive boilers of the exceptional size adopted in these two
Spanish boats, and they have turned out in every respect, after actual
service, perfectly satisfactory.
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