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2. Natural gas pipeline system in the United States - Wikipedia

   en.wikipedia.org/wiki/Natural_gas_pipeline...

   Meanwhile, manufactured gas was more commonly used than natural gas in the early 19th century, first introduced in Baltimore in 1816 with underground pipes laid starting in 1851. [6] Gas plants could be sited within cities, and many major U.S. cities such as New York, Chicago, San Francisco had gas distribution lines for manufactured gas by the ...

3. Grinnell Mechanical Products - Wikipedia

   en.wikipedia.org/wiki/Grinnell_Mechanical_Products

   They eventually grew to offer pipe fitting and plumbing services. In 1869, Frederick Grinnell, a Massachusetts-born engineer, purchased a controlling interest in Providence Steam and Gas and became its president. Fire protection was a new science in this time period and depended on manually turning on the sprinklers.

4. Pipe bursting - Wikipedia

   en.wikipedia.org/wiki/Pipe_bursting

   Pipe bursting is a trenchless method of replacing buried pipelines (such as sewer, water, or natural gas pipes) without the need for a traditional construction trench. "Launching and receiving pits" replace the trench needed by conventional pipe-laying.

5. Fire pit - Wikipedia

   en.wikipedia.org/wiki/Fire_pit

   A fire pit. The defining feature of fire pits is that they are designed to contain fire and prevent it from spreading. A fire pit can vary from a pit dug in the ground (fire hole) to an elaborate gas burning structure of stone, brick, and metal. Certain contemporary fire pit styles include fire bowls that can either be set in the ground or ...

6. Pipeline - Wikipedia

   en.wikipedia.org/wiki/Pipeline

   HDPE pipeline on a mine site in Australia. A pipeline is a system of pipes for long-distance transportation of a liquid or gas, typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than 2,175,000 miles (3,500,000 km) of pipeline in 120 countries around the world. [1]

7. Fire hydrant - Wikipedia

   en.wikipedia.org/wiki/Fire_hydrant

   A fire hydrant, fireplug, [1] firecock (archaic), [2] hydrant riser or Johnny Pump [3] [better source needed] is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection. Underground fire hydrants have been used in Europe and Asia since at least the 18th century. Above-ground pillar-type ...