US1288122A

US1288122A - Wall sprinkler-head.

Info

Publication number: US1288122A
Application number: US21784118A
Authority: US
Inventors: Charles W Mowry
Original assignee: PEOPLE OF UNITED STATES AND TERRITORIES
Current assignee: PEOPLE OF UNITED STATES AND TERRITORIES
Priority date: 1918-02-18
Filing date: 1918-02-18
Publication date: 1918-12-17
Anticipated expiration: 1935-12-17

Description

C. VV. MOVVHY.

WALL spammen HEAD.

APPLICATION FILED FEB.18| 1918. L/2&. Slm,2 amfntd Doc. l?, 12H8.

2 SHEETSWSHEET l.

Mms

CHARLES W. MOWRY, 0F LYNN, MASSACHUSETTS, ASSIGNQR TO THE EPLE F THE ETW-Uma al 'UNITED STATES AND TERRITORIES.

WALL SPRI-NKLEB-HEQ?.

atented Dec., 1li?, il

Application filed February 3.8, 1913. Serial No. 217,841.

To all whom it may concern.'

Be it known that l, CHARLES lV. Mownv, a citizen of the United States, residing at. Lynn, county of Essex, State of Massachusetts, have invented an ImprovementA in 7WallSprlnklcr-Heads, of which the following description, in connection with the accompanying drawing, is a specification, like characters ou the drawing representing like parts.

T his invention relates to improvements in sprinkler heads. These heads are operatively connected with a water supply under pressure. When a fire occurs or it is desired to operate the heads a valve in the water supply system is opened and the water flows therefrom out through the heads.

The object of this invention is to produce an improved sprinkler head.

This invention is particularly directed to the provision of a wall sprinkler head adapted for use to protect windows, side walls and similar parts of structures in which a sheet or curtain of water is advantageous.

The invention also has for its object the protection both of a wall surface whether provided with windows or not and a cornice so that all of the surfaces may be thoroughly wetted and with an economical use of the wat-cr.

@ther objects of the invention will more fully appear from the following description and the accompanying drawings and will be particularly pointed out in the annexed claims.

ln the accompanying drawings, there has been disclosed a structure designed to carry out the objects of the invention, but it is to he understood that the invention is not confined to the exact features shown, as various changes may be made within the scope of the claims which follow. y f

Figure l is a view in elevation of a wall showing the invention in various ways;

Fig. 2 is an enlarged sectional view of a wall showing a cornice and window with the device applied; 1

Fig. 3 is a front elevation of the improved sprinkler head;

Fig. 4 is a plan view of the same;

Fig. 5 is a sectional View on the line 5-5 of Fig. 3;

Fig. 6 is a sectional view on the line 6 6 of Fig. 3;

Fig. 7 is a diagrammatic view illustrating how the water is distributed.

The selected embodiment of the novel sprinkler` head here shown is one particularly adapted to deflect the water forced from 'the sprinkler head outlet in a fan-like sheet. rlhis type of head and detiector is advantageous in providing a uniform sheet of water flowing down the side ofabuilding or windows. rllhe novel structure of this head affords a water outlet and a delecting surface acting to causeV water discharged through the outlet to pass olf the surface in a. fandikc sheet with the discharge so concentrated in the central portion of the sheet that the sheet of water flowing down a surface located at a predetermined distance from the outlet shall be of substantially uniform volume and in which the outlet is sufliciently large to insure a relatively slow velocity of the sheet of water flowing down said surface.

The orifice is made relatively large depending upon the pressure or head of the water so that even with the lowest pressures which occur in practice a suliicient volume of water may vrlow therethrough at a relatively slow velocity to provide for wetting the required area of wall surface. rihis is particularly desirable at the top of tall buildings where the pressures are frequently very low. y

llllhile this improved head may be formed of a plurality .of complementary parts, it is preferable to form the head in one integral casting, The nipple l is externally threaded to be received in engagement with a suitable itting on a supply pipe 2. Direct communication with the pipe interior is thereby afforded and water under pressure in the pipe may be forced out through the sprinkler head outlet lt is with the deiiection and distribution of this released water that this invention is concerned.

The outlet 3 of this improved head is made larger than those of other existing` heads and thus choking or clogging is practically eliminated and a larger volume of water may be delivered '1n a given time and at a lower velocit-y. The nipple l is provided with a base such as the square hase ll. Cast integrally with this base are the parts which broadly comprise the water deecting and controlling surfaces. rlhe deflecting surface 5 may be described as substantially like a segment of a concavcd cone. rihe apen i3 ot this conodial segment is preferably not positioned immediately under the outlet 3 hut is adjacentone side of the water out-let so that the Water forced from the outlet will be etfectively delected by the surface 5 of the conodial segment.

l'n order to attain the desired deflection the Water in a uniform sheet this seguro tallyy conodial surface 5 is provided with an elongated pocket or depression 7. This depression longitudinally extends, as shown, substantially in a. medial line of the surface from a point adjacent the vapex (5 to the hase ot the surface 5. rl`he width and depth ot' the elongated depression lessens as it approaches the apex portion which portion .is substantially flattened and the depression gradually merges into the flattened apex 6. The greatest width and depth of the depression l' is substantially opposite the longitudinal axis of the outlet. The major tuut tion of this medial depression is to aid in effecting a concentration oi' the Water in the central portion orf the sheetl toi-ined by the Whole detiectingij surface ot the head.

ri`he hase of the conodial surface o terminates in a iange- 8 which is preterahlbi' integrally formed and projects, in this selected embodiment, at substantially a right angle to the axis of the surface 5. This angle may of course he varied within permissive limits but. a flange made at the angle indicated functions advantageously with the segnientally conodial surface here shown.

Means are also provided on this novel sprinkler head to direct Water forced troni the outlet and to govern the angle ot distribution, A retaining- Wing 9 is formed on. each side ot the surface 5 extending troni the apex to the hase. Herein, these Wings i) are shown as integral Webs extending troni a corner ot' the square hase i to the hase iiangie 8. En this particular head., these retaining wings 9 form an obtuse angle with each other. llfater, tending to he forced oil the sides of the conodial detlecting surface, is directed to the surface by the opposed Wings so that the;7 retain the wat-er and suostantially govern the width of the angle of distribution of the iian-like sheet of Water resultant from this sprinkler head structure.

Sprinkler' heads of this general type are usually employed in series and a particular adaptation of these novel heads is indicated in Figs. 1 and :2, wherein a sprinkler system pipe 2 is supported along the Wall of a build@ ing near the top. The section of wall shown is that of a buildingseveral stories high and having variant sized Windows and a blank wall port-ion. A sprinkler head ot this iinproved type is positioned opposite each wiu dow such as the ordinary Windows 10 or in pairs adjacent larger Windows l1. Each ot' the sharp torceiul impact is ohviated and sheet of water forming what is known as a Water-curtain liows down the wall.

By the employment ot this improved sprinkler head2i a greater voluine or' Water inay hetorced troni the outlet at a relatively slower velocity than is common in other heads. rhe result herein is that the larger volume is discharged troni the deiieccing surface or' this head at a relatively slou.r velocity. The tan-like sheet impacts with the 1window, wall or other surface at a relatively slow velocitya the spattering rebound a continuous sheet o water is formed to dow down the surface. Further? the above-noted concentration ot'- wa er in the central portion oic the surface 5 (broadly, the central one-third) causes the fan-like sheet discharged it'roin the frange 8 to be of greater thickness or volume in the corresponding portion. lThis prevents the usual thinning out in the center of an impacted stream ot water so that the sheet of water, resultant troni this norel head and iiowing down the iinpact suri'ace, is or" substantially uniform volume The invention comprises the use in connection with sprinkler heads for wetting the 100 wall sui-tace of a series ot' sprinkler heads d tor netting a cornice so that the an of the building may he nre, ruction illustrated the supply7 pipe 2 is proif'ided with a series or cornice sprinklers 18, Lyn the adaptation illustrated and for convenience in pipingr these cornice swinkler heads are shown as located opposite the Wall sprinkler heads and 110 connected to the sarne fittings but it is olovieus that this particular arrangement in not essential and that the two sets or sprinklers need not necessarily loe connected to the pipen The sprinkler heads 13 are designed to project or jet the vater issuing therefrom upwardly against the under surface ot the cornice and are so constructed as thoroughly to 'wet the cornice. or this purpose they 120 inaypreerahly he ot the construction illustrated in another application Serial llo. Qlil tiled coincidently herewith by this inventor. so constructed these cornice sprinklers project divergent sheets oit Water 125 which are relatively long' and narrowr and at saine time a. small amount ci Water di rectly up between the divergent sheets so that the entire surface is wetted with the in Fig. 1

maaien There is thus provided in the combination oi the two sets of sprinkler heads a means -for thoroughly wetting the wall sur- :tace and the projecting cornice of a building in a simple, elicient und economical manner.

ll'aving fully described my invention what claim as new and desire to secure by Lettere Patent is:

l. l sprinkler head for wall surfaces co1n- @rising a water outlet, a dellecting segmental concaved conoidal surface with its apex adjacent said outlet and its 'base terminating in a lange, a longitudinal medial depression in said dellecting surface, and retaining wings at the sides of said surface, the said surface with its depression and the said liange and wings being so shaped, proportioned and, related as to cause Water dis charged through the outlet at a given volunie and velocity to pass olf the flange in a fan-shaped sheet with the discharge so concentrated in the central portion of the sheet that the sheet of water flowing down a surtace located at a predetermined distance from the outlet shall beef substantially uniiorni volume.

A sprinkler head such as set forth in claim l, in which the seid flange extends at substantially a right angle to the axis of said surface.

il sprinkler head such as set forth in claim l, in which the apex of said surface is adjacent and at one side of the water outlet.

il. A sprinkler head as set forth in claim l, in which the apexvo said surface is adjacent and at one side of the water outlet and in which said flange extends et substantially n rightangle to the 'finie oit' Said surface. c c

sprinkler head such ns set forth in claim l, in which the said outlet is of suliciently large area. to secure a relatively slow velocity of the sheet oi' water at its impact with the seid surface whereby any substantial einonnt ot spat-tering or rebound is pre vented.

6. a sprinkler head Jlor wall surfaces, a water outlet having its area sniciently large to produce a relatively low velocity of flow at a predetermined distance from the outlet, and a del'iecting surface having a configuration acting to cause water discharged through the out-let at a given volume and velocity to pass oil the surface in a fanshapcd sheet with a discharge so concen trated in the central portion of the sheet as to produce a-Sheet of uniform volnine along a straight line at said predetermined distance from the outlet, Ywhereby the impact ot' the sheet with :i surnce located :it said predetermined distance from the outlet shall take place at a relatively slow velocity and whereby the sheet oi' water ilowing down the impacted surface shall he ot suhsten tially uni-torni volume.

ln testimony whereof', l have signed my narne to this speciiication.,

W. illilly.