Slate waggon
Slate wagons (sometimes spelled
waggons) are specialized types
railroad cars designed for the conveyance of
slate. The characteristics of this stone lead to the development of small open cars that carried the slate in its various forms. These were first developed on the
narrow gauge railways of
North Wales in the late
1700s. They were initially used on horse-drawn tramways, but survived with only minor modifications into the days of
locomotives and are still to be found in use in the
21st century.
The three most common types of slate wagon are:
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Slate Wagon - this is the basic vehicle for transporting
roofing slates from the
quarry to the destination. Because roofing slates are relatively
friable, they are packed vertically into the open slate wagons to reduce the chance they will be broken on their journey. Early designs used simple wooden rails to hold the packed slates. Later these were replaced with iron or steel railed examples of a similar design.
|
A typical narrow gauge slate wagon. This is a 16 mm scale model of a standard 2-ton iron-railed wagon from the Ffestiniog Railway |
*
Slab Wagon - slab wagons are designed to carry large uncut slabs of slate, often internally within quarries. The most common form is
flat wagon (often referred to as a
sled) where the slab is laid horizontally on wooden runners and chained to the wagon. A less common form is the vertical slab wagon, where two slabs are chained to an A-frame mounted on the wagon; this form of slab wagon was most famously used on the
Corris Railway though other lines such as the
Ffestiniog Railway also had examples of this type.
*
Rubbish Wagon - these were used almost exclusively within slate quarries. They transported waste slate from the mills to the dumps. These were often crude vehicles that were heavily abused during service. They typically consisted of a basic flat wagon with a three-sided iron body that held the waste. The waste slate was usually tipped from the wagon onto the slate tips, usually by physically tipping the entire wagon and its contents.
