File:Experiments upon the discharge of water through small fire hose and nozzles (1911) (14781211551).jpg

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Identifier: experimentsupond00kors (find matches)
Title: Experiments upon the discharge of water through small fire hose and nozzles
Year: 1911 (1910s)
Authors: Korsmo, Edward Oswald Neininger, Alonzo Beda
Subjects: Fire hose Nozzles Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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erence. A 1/4-in. nipple connected the pressure cham-ber to a small rubber tube leading to the pressure 2auge. A hcod, which is shown in Fig. 7, was set up 6-ft. from thenozzle to deflect the stream into a galvanized iron tank, resting on anordinary platform seals. The loss of head in the hose due to friction was determinedwith a differential mercury $auge, Graduated to read directly in feetof water, the corresponding discharge being obtained by means of a cali-brated nozzle. The nozzle used was a smooth finished rin£ nozzle withan opening 0.75-in. ip- diameter. This nozzle is shown in Fig. 4 and willbe referred to hereafter as nozzle D. A hose length of 100-ft. was usedin the tests, the lost head being measured in the last 50-ft, the first50-ft. being used to steady the flow. It was thought that a sharp bendand a valve at the inlet would make the pressure too irregular to placea piezometer coupling at that point. The general arrangement of the PfiE55U/?E 6AU&£ & CONNECT/ONS
Text Appearing After Image:
10. apparatus is shown in Pig, 7. The determination of the height and the distance the streamscould be thrown with various pressures at the base of the nozzle re-quired no additional apparatus other than a transit for measuring vert-ical angles. Pig. S shows a photograph of the apparatus. The water used in these experiments was drawn from the Universitymains, the pressure being supplied by the fire pump. Whenever it wasnecessary, the pump was called upon to furnish fire pressures. CALIBRATION of NOZZLES: A fifty foot length of rubber-linedcotton hose was connected to a fire plug in the Hydraulics Laboratoryand arranged so as to have no sharp curves. The fifteen feet adjoiningthe nozzle was straight and horizontal. A piezometer coupling, Fi£. 6,was connected between the hose and the nozzle to be tested. The couplingand nozzle were also horizontal. The pressure gauge for reading press-ures at the base of the nozzle was hung on a framework, the center ofthe pressure gauge being at the s

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Flickr tags
InfoField
  • bookid:experimentsupond00kors
  • bookyear:1911
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Korsmo__Edward_Oswald
  • bookauthor:Neininger__Alonzo_Beda
  • booksubject:Fire_hose
  • booksubject:Nozzles
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:25
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014

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