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- The Harman geared locomotive was a geared locomotive by Alfred Harman from Melbourne in Australia. (en)
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- 7494 (xsd:nonNegativeInteger)
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- Messrs. Johnson & Son (en)
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- Alfred Harman from Melbourne (en)
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- Harman geared locomotive built for the Forests Commission Victoria in 1927 (en)
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- Each bogie was equipped with two cylinders, which operated crankshafts, running in ball bearings. The big ends were also fitted with ball bearings. (en)
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- Alfred Harman from Melbourne (en)
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- Rolled steel joists , boiler rigidly attached at the firebox and supported on a cradle at the smokebox end. (en)
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- Specified: 16 to 18 tons. Actual: 26 tons (en)
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- Harman geared locomotive (en)
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- A Cheney spark nullifier, by Cheney of Bayswater, Western Australia, was fitted to the stack to minimise the fire risk. The usual smokebox conditions did not exist, as exhaust steam, instead of entering a blast-pipe, was taken to the top of the smokestack and expelled through a slotted ring, to form a cone of saturated steam. This was an added fire prevention measure, as all products of combustion passed through this steam. The draught required was provided by the turbine furnace, with which the locomotive was fitted, an arrangement that brought the rate of combustion directly under the driver's control. (en)
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- 200 (xsd:integer)
- A steel spur gear on the transverse shaft provided the first reduction, the second being through the following chain and sprocket drive to the axles, the total providing a 4to1 ratio. (en)
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- Two four-wheel bogies, which were constructed with heavy side-plates, carrying the horn cheeks, steel axleboxes, end plates and a central steel casting, which supported the ball bearings of the transverse shafts of the reduction gear. (en)
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- The Harman geared locomotive was a geared locomotive by Alfred Harman from Melbourne in Australia. (en)
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- Harman geared locomotive (en)
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- Harman geared locomotive (en)
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