ALL Please Take note of the terrain rating of 1.5
The owner of the Portable Steam Engine & Jinker is concerned that People are putting themselves in danger by climbing over the two items
NOTE: YOU DO NOT HAVE TO CLIMB THE CHIMNEY STACK,
at least one foot does not have to leave the ground
The cache only contains a log, so you will have to BYO pencil/pen.
Portable Steam Engine
Apart from threshing work, portable engines were used to drive corn-mills, centrifugal pumps, stone-crushers, dynamos, chaff-cutters and hay-balers. In general, the portable engine is hauled to the work area, often a farmyard or field, and a long drive belt is fitted between the engine's flywheel and the driving wheel of the equipment to be powered. In a number of cases, rather than being towed from site-to-site, the portable engine was semi-permanently installed in a building as a stationary steam engine, although the wheels were not necessarily removed.
Fuel is usually coal but the engine may be designed to use wood fuel, straw or bagasse (sugar cane residue) instead. A longer, circular firebox is particularly suitable for burning logs rather than shorter wood billets. Machines designed for wood-burning may be fitted with spark arrestors. A tall chimney is provided to ensure a good draught for the fire. To permit negotiation of overhead obstacles, the chimney is hinged at its base, and is folded down for transport and storage.
The engine may have one or two flywheels mounted on the same crankshaft. Where two are provided, they are mounted either side of the engine and may be of different diameters. A smaller flywheel provides a slower speed for farmyard work (e.g. chopping feedstuffs) than is required for driving a threshing machine (for example).
Most designs are fitted with four wheels and no suspension of any kind. The first portables had wooden wheels, but as the engines became more powerful (and heavier), fabricated steel wheels were fitted instead. The 'front' wheels are normally smaller than those at the back. This is because they are mounted on the swivelling fore-carriage and large wheels would be liable to hit the boiler when the engine turned around a corner.
Many portable engines still survive, as they were built in large quantities and were shipped to many remote corners of the Earth. A substantial number of them have been preserved, with many restored to full working order: their relatively small size and simpler construction. It is usually possible to see portable engines working at traction engine rallies and steam festivals.
Timber Jinker
Bullock teams dragged the heavy logs from some very steep, rough country to be loaded onto a jinker for hauling to a saw mill. Teams of up to thirty bullocks’ hauled large flat-top wagons or jinkers fitted with a single pole instead of shafts.
Timber jinkers were of a four wheel type was capable of carrying large logs up to seven feet in diameter. The less common two wheeled jinkers bore and carried the front of log, leaving the end to trail along behind. Two jinkers could also be connected, with the back jinker linked by a log which would be chained to the front jinker. Jinkers were used in the transport of “Red Gold,” Australian red cedar (Toona ciliata), and other logs to sawmills or to a river for further transport.
On steep hills bullock teams often required additional assistance to negotiate these inclines. This assistance was provided by hitching two or more teams together for the ascent. On steep descents logs or trees were dragged behind the dray, wagon or jinker to slow the load's descent and protect the team from injury. Shanties and villages grew to serve the needs of the road's users at the site of difficult range and river crossings where teams met.
Bullock teams were still used to drag logs from the forests to log dumps after the introduction of logging trucks. Nowadays they are mainly used for exhibition purposes.
Extracts From Wikipedia
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