US2254751A - Head for fire hoses and the like - Google Patents

Description

p 1941- R. P. PARADISE I 2,254,751

HEAD FOR FIRE HOSES AND THE LIKE Q Filed July 5, 1938 2 Shets-Sheet l jm/e 77 20 7 faymona P 37700953,

'Sept. 2, 1941. R. P. PARADISE HEAD FOR FIRE HOSES AND THE LIKE Filed July 5, 1938 2 Sheets-Sheet 2 Patented Sept. 2, 1941 4 UNITED STATES PATENT OFFICE 2.254.151 HEAD FOR FIRE ROSES AND THE LIKE- Raymond P. rm. Indianapolis, Ind. Application July 5, 1938, Serial No. 217,328 3 Claims. -(ci. 299-141 This invention relates to a method and means I for extinguishing fires resulting from burning oils, tars and the like which preclude the use of a direct stream of' water on them.

It is a primary object of the invention to provide a nozzle which will atomize a flowroi water under pressure to permit setting up over the fire of a blanket of water of sumcient density as will cut ofl. the natural up draft produced by the heat of the fire but at the same time will not cause' any stream of water to come into contact directly with the burning material.

A further important object of the invention is to so as to shut oi! the supply smother out the blaze.

A still further tion is that a blaze covering a considerable area may be handled and thereby quickly extinguished.

These and many other objects and advantages as illustrated by the accompanying i and then spinning the neck I! from which the head flares outwardly in a fan-shape to terminate in an outer arcuate wall Ii convexly presented from the outside ofthe head. The interior oi' the head I rectangular cross section at any point this Outer wall and the rear roundneck I.

This curved wall i8 is provided with a pinrality of orifices, herein shown as being provided in nipples l1 screw-threadedly entered in holes provided in the wall II. In the form shown in Figs. 1-5, there are tworows of these nipples i1 and the nipples of one row are staggered in relation to those in the other row. Each of these nipples i7, Figs. 4 and 5, consist of a body having a cylindrical bore ll therethrough of a major diameter in the outer length and a reduced dimeter in the portion against the outer side of the wall I l and the outer periphery-of this shoulder is preferably formed to receive a wrench as a means for positioning and removing the nipples.

In the "outer end of each nipple I1 is secured a metal diaphragm 20 .relativelythin and cupped of it against a shoulder outer end of the nipple around against the diaphragm.

drawings, in which Fig. 1 is a top plan view of a head in partial section;

Fig. 2, aside elevation; Fig, 3, a front end elevation; Fig. 4, a front end elevation on an enlarged scale of a single nozzle;

Fig. 5, a transverse section on the line 5-5 in Fig. 4;

Fig. 6, a side elevation of a slightly modified form of head; and

Fig. 7, a diagrammatic representation of the method of extinguishing a blaze.

Like characters of reference indicate like parts throughout the several viewsin the drawings.

Referring to Figs. 14, a hollow head is formed to have a hose connecting collar i0 swivelly secured to the rear end of the head by any suitshown as abushing ii screwwithin the head and having a able means, herein threadedly entered flange l2 engaging is.

This rear end of the head, generally designatedover the flange I301 the collar A triangular orifice 2| is provided in the center of the diaphragm in my U. S.-Letters Patent No. Re. 19,913, issued March 31, 1936.

Since these nipples ll project outwardly from the wall it, and also since the head I 4 may be subject to severe usage when in operation, the top and bottom walls 22, 23 respectively of the head M are extended beyond the wall it to form the protecting aprons 2d and 25 aprons terminating a slight distance beyond the outer ends of the nipples ll, as indicated in the drawings. Preferably, although not necessarily, the head is provided with top and bottom reenforcing radial flanges 28 to further reenforce the aprons 26 and 25. The primary purpose of these aprons 24 and 25 is to prevent damage to the nipples I! should the head be dropped or thrown about.

Referring now to Fig. 7, the head it is conby the numeral Hi, consists of a short cylindrical nected o y suitable pipe or hose line Outlet between a respectively. these 21 to receive a supply of water or any fire exnumber of the nipples l1. Where the number tlnguishing material under pressure. The ordiof rows of the nipples l1 exceed two, it is prefnary city pumping pressure is suflicient in most erable that the upper and lower rows at least cases to accomplish the desired results. The flow be directed radially upwardly and downwardly of the fluid through the head ll carries the fluid 6 so as to give an increased thickness in the heavy through the various orifices 21 in a uniformly dlstop fog layer, this being the primary purpose oftributed manner as relating to the separate adding rows of nipples as indicated.

nipples l1. As the fluid leaves these orifices 2|, While I have herein shown and described my 1t passes ther from m very finely divided t e invention in the one best form as now known to in the nature of a fog rather than large drop '10 me, it is obvious that structural changes may or solid streams. This fog, as it may be termed, be mp yed without departing from the spirit becomes 1m k by reason of th close proxof the invention, and I, therefore. do not desire imity of one nipple to the other in one row and to be limited to that Precise r y nd the this fog bank further takes on a considerable limitations as may be imp s by h f llowin thicknessby reason of the second row of nipples; clalmfl- One of the peculiar features resulting from the I claim! structure above indicated is that the fluid in the A flre nozzle comprising a b dy h ving an form of t fog m be cert-led an unbelievably internal distributing cavity increasing in horifar distance, under high velocity iron the head some! Width from ell-intake end f h y gth t dropping in t t 1 drops or the toward its front end; a front wall across said hke body 'curvingconvexly outwardly and provided Assuming that there is a blaze as represented with a plurality of orifices arranged in two by the tt A. Fig 7 t heed is so directed straight line IOWS horizontally therearound, the that the fog stream is carried in an appreciable in 011% row being Staggered in relation thi kness over the of the to have an to the orifices in the other row; a nipple secured appreciable amount of t fog drop out beyond in each of said orifices and extending outwardly t m o course this f g is continually therefrom each on a radial line of the curvature settling from the under-side of the heavy m of said front wall to have the axes of the nipples ing body of the fog so that the atmospher n of one row in a horizontal plane parallel to the 7 around the blaze A'becomes charged with mois- Plane 0f the axes of the pp of he other ture but at the same time does not have any Said nipples being Spaced o from nother n t e or m m drops f water tn t over said front wall a distance not substantially zone. By reason of the fact that there is a body greater than the diameters of the p h of t fog of appreciable thickness above the of said nipples being formed to have an initial blaze A, t first noticeable result 13 that the internal diameter at its inlet end less than its blaze will tend to turn andspread outwardly internal diameter therebeyond; and a closure along t underside of theheevy top zone of fee across the outer end of each nipple having a e5 m t by t ermwe Thts top zone being central, axially aligned discharge orifice, the in l teral motion and also being of appreciabl edges of which orifice define an area less than t i k i m i t t cut n t up draft the internal transverse cross-sectional area of duced by the heat of the blaze. As the blaze the meier diameter part of e ni tends'to spread out under this top zone desig- A fire Home CQmPIiSiBE a y h ving n hated by t 1 tt t heat m tend to internal distributing cavity increasing in horivaporizethe fog and convert it into steam which 20mm Width from an n k and of the body l m outwardly and downwardly ereund 4 toward its front end; a front wall across said t periphery t blaze end thereby quickly body curving convexly outwardly and provided shut off the supply of oxygen from the outside with a plurality f ifi s arranged in two t h of mt thhmer g eppeeb straight line lows horizontally therearound. the i around t e blaze 1 1 further m i orifices in one row being staggered in relation to ting n t oxygen as 1t 1 tmtiehy drawn in the orifices in the other row; a nipple secured t w rd th blaze by t flow of therewwer in each of said orifices and extending outwardly This enclrclipg enclosure of ste is mdleeted by therefrom each on a radial line of the curvature t dash lines Surrounding the blaze A m m q of said front wall to have the axes of the nipples The greet aree of coverage produced by the of one row in a horizontal plane parallel to the head It results from the fact that the jets i1 Plane of the axes of the nipples of the other have their bores l8 radically disposed to produce Said nipples being p d one from another a fan-shaped fog spreading quickly horizontally over said front wall a distance not substantially as t leaves t heed, 1 widespread eovemge greater than the diameters of the nipples, each i absolutely ti l i order t t t heat of of said nipples being formed to have an initial t blaze 11 t cause an up draft, to sheet internal diameter at its-inlet end less than its around t outer edges of t heevyupper t internal diameter therebeyond; and a closure layer. The essential feature of this layer is Toss the rd 0f h n pple having a.

that it have sufilcient density and sufficient mocentral. axially i ed i har e rifi e. the t d tm be without ehy nd water streams edges of which orifice define an area less than that the up draft movement will be eifectively the internal transverse cross-sectional area of in cuttingdown the up draft.

cut ofl and at the same time the water particles the 4 diameter P of'the n pp nd a p be fl enough t b practically m t t n and bottom lip each extending forwardly of said converted into steam, this steam converting procfront Wall, d sp ce above and below said ess, 01' course, reducing the temperature of th nipples sufllciently to be removed from contact medium at the heavy fog layer to further aid with now from Said ni pl s- 3; A fire nozzle comprising in combination a Referring now to th t, f .of t invention fan-shaped head having an intake at its smaller as shown in Fig. 6, the same type of head is and entering into a chamber in the head divergformed with the exception that it is pro id d ing horizontally outwardly and forwardly of the with a greater vertical depth to carry a greater intake n a front W fi ng h forward.

g r 2,254,751 r 3 enclosing end of said chamber curving by its inner and a nipple in each of said orifices having the and outer faces cbnvexly outwardly, a plurality nipple axis aligned with its orifice axis, said of orifices in said wall spaced horizontally in nipple having a bore expanded in cross-sectional line around the wall to have the orifice axes on area toward its outer end in comparison to its lines radial of the wall curvature, a plurality of 5 inlet, end, and each nipple having a discharge orifices on a line below the line of the first end, concavely curved wall through which is an orifices and having their axes also on lines radial axially aligned triangular orifice defining an of said wall curvature, the axes of the orifices opening less in area than said expanded area in in one row being parallel to the axes of the orifices the nipple.

in the other ro the orifices in one row further 10 RAYMOND P. PARADISE. being staggered between orifices in the otherrow,

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