Logging Locomotive For
Wooden Track
Our publication on August 1 of a cut
and description of a logging locomotive, which the designer termed a
steam missionary, has brought to our office a photograph of a
machine which the builders think is "an improvement on Mr. Stephens'
locomotive." It will be seen from the illustration that the
locomotive in question is an eight wheeled geared tram engine built
especially for logging use. The wheels are 30 inches in diameter,
with a double flanged 12 inch face; and they are mounted in sets of
four on flexible trucks, so as to allow easy running on very rough
roads. All the wheels are used as drivers. The engines have
cylinders 7 inches in diameter by 10 inches stroke, and by means of
cut gearing run a countershaft. From this countershaft the front
axle of the rear truck is driven by a heavy steel chain; the back
axle of the front truck is being driven by chains from the back
trucks. The sprocket wheels are double flanged, so as to prevent the
chain from running off. All the gearing is made of cast steel. Both
the front and rear axles of the locomotive, as will be seen from the
engraving, are run by means of connecting rods. The 40 horse power
boiler, which is of a special locomotive type, is fed by a small
duplex pump. The locomotive is also provided with a steam siphon for
drawing water into the tanks. It has been in use for some months on
a rough wooden track, hauling from 30,000 to 40,000 feet of logs per
day.
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The total cost of building the wooden track is from $300 to
$400 per mile, according to the class of country on which it runs.
Where the ground is rather swampy, it requires several small
bridges, but on ordinary level ground the cost does not exceed $300.
This machine is so geared as to take ordinary loads at from four to
six miles per hour, and if first-class track is furnished, the speed
will be considerably greater.
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The Curtis Manufacturing Company, of St. Louis, who are the
builders, state that this engine, which is run by two men, is doing
work which formerly required thirty yoke of oxen and five men.
**** DO NOT COPY **** Violators will be prosecuted! gearedsteam.com
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