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A rail repair dutchman is typically a 4–6-inch (100–150 mm) long piece of rail that is cut in advance for the purpose and carried by a section crew. If the gang finds a rail with a chipped or broken end, they remove the connector plates ( fishplates ), cut out the damaged section, replace it with the dutchman, and bolt the connectors back ...
It can be cut, cleft, or sculpted to shape as required, and the variety of natural stone types, textures, and colors provide an exceptionally versatile range of building materials. The porosity and makeup of most stone does, however, leave it prone to certain types of damage if unsealed. Staining is the most common form of damage. It is the ...
A repair kit or service kit is a set of items used to repair a device, commonly comprising both tools and spare parts. Many kits are designed for vehicles, such as cars, boats, airplanes, motorbikes, and bicycles, and may be kept with the vehicle in order to make on-the-spot repairs.
Alternatively, stone cladding can be a natural stone that has been quarried and then cut into thin pieces to reduce weight. Being heavier, natural stone cladding often needs mechanical fixing to be adhered to substrates. Mechanical fixing could be using shelf angles, or perhaps a product called stone clip.
The two main types of lacquer are Asian, made with sap from the Urushi tree, and European, made with a variety of shellac and natural resins. Lacquer can be damaged by age, light, water, temperature, or damaged substrate. Conservation treatments include dry cleaning, wet cleaning, consolidation and filling losses.
One of the more striking features of Coade stone is its high resistance to weathering, with the material often faring better than most types of natural stone in London's harsh environment. [citation needed] Prominent examples listed below have survived without apparent wear and tear for 150 years. There were, however, notable exceptions.
Natural Stone Bridge and Caves is park with a system of eleven marble caves and karst formations, operated as a show cave located in Pottersville, New York. [1] Visitors to the park can walk a trail which features the eponymous Stone Bridge Cave, advertised as the "largest marble cave entrance in the eastern United States", small caves, potholes, and various other karst features along Trout Brook.
Goldstone Goldstone glass under magnification. Goldstone is a type of glittering glass made in a low-oxygen reducing atmosphere.The finished product can take a smooth polish and be carved into beads, figurines, or other artifacts suitable for semiprecious stone, and in fact goldstone is often mistaken for or misrepresented as a natural material.