The head prior to the SS was called a sprinkler head. It distributed water both up and down and there was no distinction in orientation. One head for upright and pendent. When the SS came out the former head was designated as "conventional" and the new as "standard spray." Slang created "old style," but as the SS became the norm, and therefore the "conventional" head the slang term became officially synonymous with the old "conventional" designation, and "old style" is now used right in NFPA with a definition.
On Fri, Apr 27, 2012 at 11:42 PM, fire...@eoni.com <fire...@eoni.com> wrote: > > So the SS is Standard Spray? Or Spray Sprinkler? Was is a straight stream > before? What broke the water stream into droplets? > > > >------- Original Message ------- > >From : Ron Greenman[mailto:rongreen...@gmail.com] > >Sent : 4/27/2012 3:38:24 PM > >To : sprinklerforum@firesprinkler.org > >Cc : > >Subject : RE: Re: History Lesson - RE: Spray Sprinklers become the > Standard > > > >That's about what I thought. That first obtainable Automatic SSU with the > little disc over the bottle cap deflector was a 1954 model. The disc > disappeared (I think) the next year. > > On Fri, Apr 27, 2012 at 3:34 PM, Sprinkler Academy - C Bilbo < > prodesigngr...@msn.com> wrote: > > > > > I am a geek for this stuff. > > > > The "Standard Sprinkler" was researched and developed at Factory Mutual > at > > least as early as 1947. The 1947 edtion of NFPA 13 (NBFU 13) allows for > > newly designed sprinkler deflectors for effective water distribution to > be > > considered. By 1952, Factory Mutual had enough data to conclude that the > > new deflector designs provided superior water spray patterns, droplet > > sizes, and discharge to replace the "Conventional Sprinkler". So, as > > expected, the term "Spray Sprinkler" makes its first appearance in the > 1953 > > edtion of NBFU 13. > > > > It wasn't until the release of the 1955 edition that both, the 'Standard' > > and the 'Old-Style' (or 'Conventional'), are introduced into the > standard. > > They are both considered "spray sprinklers"..... > > > > The new concept is explained in detail in Section 1 - General > Information. > > Article 100 explains that this edition makes a break from the sprinkler > > that had been used for the previous 70 years. > > > > Interestingly, this is also where the vertical line (or 'bar') makes it's > > first appearance to indicate "new material for this edition". > > > > It should be recognized that the above is my opinion as a member of the > > NFPA, and has not been processed as a formal interpretation in accordance > > with the NFPA Regulations Governing Committee Projects and should > therefore > > not be considered, nor relied upon, as the official position of the the > > NFPA, nor any of their technical committees. > > > > Sincerely, > > > > > > Cecil Bilbo > > Academy of Fire Sprinkler Technology > > Champaign, IL > > 217.607.0325 > > www.sprinkleracademy.com > > ce...@sprinkleracademy.com > > > > OUR STUDENTS SAVE LIVES!! > > > > > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: < > > > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120427/e1655949/attachment.html > > > > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.org > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > rgreen...@bates.ctc.edu > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > They are happy men whose natures sort with their vocations. -Francis Bacon, > essayist, philosopher, and statesman (1561-1626) > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120427/57a647be/attachment.html > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 rgreen...@bates.ctc.edu http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120428/dd099d0c/attachment.html> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
