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Monthly Archives: November 2017

Self Regulation in the Fire Sprinkler Industry

Self Regulation

Are we victims of government regulation? What happened to our independence?

When I started in the fire sprinkler industry 33 years ago as a designer I had no idea who the fire marshal was. I seldom if ever submitted any drawings to the local government. When I did it was usually to the fire department and all they wanted to know was where the fire dept connection and alarm bells were.

Prior to that time the fire protection industry was self regulating. Now days it seems that not a news broadcast goes by without some call for more government regulation. But it was not always so. And without the development of a system of self regulation, there would be nothing available for today’s government to use to regulate us. There were many important developments that paved the way for government.
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The History of Automatic Sprinkler Protection – Part Two – The First Automatic Sprinklers

The History of Automatic Sprinkler Protection
Part 2 – The First Automatic Sprinklers

Inventors first began experimenting with automatic sprinklers around 1860 when Barnabas Wood of Nashville, Tennessee patented the first basic sprinkler. It featured a fusible solder link and operated at 165°F, still a standard temperature rating to this day. And in England, a Major Stewart Harrison of the 1st Engineer London Volunteers, developed an automatic sprinkler that apparently was a good design at the time, But neither had any success.

Henry S. Parmelee of New Haven, Connecticut is considered the inventor of the first practical automatic sprinkler head and took out his first patent in 1874. It was his third sprinkler design, in 1875, that became the one first installed commercially. It consisted of a cap, held in place by solder, covering a perforated distributor. He continued to improve this design. In 1878 it was further modified with a rotating slotted distributor which was less prone to clogging by sediment. The final version of the Parmelee sprinkler was actually done by Frederick Grinnell. He changed the thread to a ½” male fitting, and hollowed the base to separate the solder joint from contact with the water in the pipes.

Frederick Grinnell, President of The Providence Steam and Gas Pipe Company, entered in to an agreement with Henry Parmelee to manufacture his sprinklers on a royalty basis. Thousands of these sprinklers would be installed over the next few years. In 1882 he patented the automatic sprinkler that bears his name. This is considered to be the first sensitive automatic sprinkler. The Glass Disk Sprinkler came in 1890. It had a ½” orifice and a fixed deflector. It was modified in 1903 and manufactured for many years. It is probably the most common old Grinnell sprinkler to be found by collectors.

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Residental Sprinklers – Fire Protection that Saves Lives

This is a guest post by Michael T Skinner. If you want to Guest Post, check out the Guidelines here.

Imagine that you, your spouse and your three children live in a 2,200 square foot, 2 story, 4 bedroom house in Anytown, USA. It is 1:30am and you are awaken by the shrill of your smoke detectors activating. As you leap from you bed, you are immediately forced towards the floor since the smoke makes it unbearable to stand erect and breathe. Your pulse rate doubles as adrenaline is being feverously dumped into your bloodstream. Thoughts enter your mind faster than you are able to process them: “What the ….?” “Where are the kids?” “How can we all get out?” “Why is this happening?”. As you open the door to the hallway you can’t see anything except an orange glow towards the stairway. Panic takes over, what do you do next? Every day in America people die in fires, most time in there own home. In 2005, 3,675 civilians died along with 87 firefighters, averaging to over 10 people dying in fires each day.i Children 5 years and under face the highest risk of home fire death.ii There is a way to reduce these numbers considerably, that way is the installation of fire sprinklers in your home. Fire sprinklers have been around for more than a century in factories, warehouses, commercial properties and public building such as schools, hospitals, and hotels. They were around long before smoke detector technology was invented and are highly reliable, yet they are resisted due to numerous myths concerning them. Fire sprinklers save lives by providing the necessary protection that allows the occupants to escape a building fire as well as reduces property damage.

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