US1469336A - Sprinkler guard - Google Patents

Description

Oct. 2 1923.

A. C. RoWL-EY SPRINKLER GUARD Filed July 1, 2 Sheets-Sham 1 70. 2, 1923. mwaaa A. C. ROWLEV SPRINKLER GUARD Filed July 1, 1921 2' heets-Sheet 2 JQ. v

j is a specification.

Patented @ct. 2, i923.

arts at ARTHUR o. RowLny, or PHILADELPHIA, PENNSYLVANIA, AssrGNon-ro GLOBE euro tease ice,

TION OF PENNSYLVANIA.

'srarnknnn scan-n1 Application filed July 1, 192 1. SrialNo. 481,814; f

To all to 710m it may concern:

Be it known that I, ARTHUR C. RowLnY, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented Sprinkler Guards, of which the following One object of my invention is to provide an open sprinkler head guard of such construction that it is necessarily applied in such position that its interference with the proper functioning of such sprinkler head is an impossibility. i

It is further desired to provide a relatively simple and substantial sprinkler head guard which shall include means whereby it may be quickly applied or removed and shall be of such construction that it cannot be turned after it has been applied to the sprinkler head, nor can any part of it interfere with the movement of the lever arms of said head so as to prevent their separation and the subsequent opening of the sprinkler valve, when said lever arms are released by the melting of the fusible link whereby they are normally connected.

The invention further contemplates novel means for immovably connecting a sprinkler head and a. guard therefor.

These objects and other advantageous ends I attain as hereinafter set forth. reference being had to the accompanying draw ings, in which,

Figs. 1 and 2 are respectively a plan and r a vertical section on the line 2-2, Fig. 1, illustrating my improved guardapplied to a sprinkler head; and

Figs. 3 and 1 are plans of the base of the guard, showing its parts in their closed and open positions, respectively.

In the above drawings, 1 represents the threaded nipple whose upper or delivery opening is normally closed by a valve 2 and which has integral with it a yoke 3 carrying a water spreader 4. The valve 2 is normally maintained in its closed position by a pair of coacting levers 5 and 6 which engage each other and also respectively engage the valve and the top of the yoke 3, while their free arms are normally connected by a fusible or temperature-responsive link 7. v

The base 8 of the yoke is substantially rectangular in outline and in accordance with my invention has clamped to it the two parts of a guard base ring 9-9 of substantially circular outline and said parts are hinged together atone side by a suitable pintle in the form of a screw 10, having opposite said screw, projecting lugs ll separably connected by a screw 12.

Each half of the base ring 9}has a dia metric web portion 18 formed with a semicircular edge recess 14: for the reception of the cylindrical neck 8 of the nipple 1 im mediately above its thread. "Adjacent this opening 14 for the nipple, each of the web portions 13 has its top face recessed-t0 more or less closely fit and immovably hold the rectangular or other-than-circular base 8 of the yoke of the sprinkler head so as to keep said guard ring from turning into or being assembled in such a position as to extend under or in any way interfere with the proper functioning of the lever arms of the sprinkler head.

The base ring 9-9 is formed with a set of inwardly extending projections 17-17 for the reception of the lowest circular member 18 of a wire guard designed to surround and protect the sprinkler from mechanical injury and there is also a second set of inwardly extending projections or tongues 19 so placed on the ring 99 as to coact with the projections 17-17 to hold the guard in place.

In addition to the bottom member 18, the guard includes two other parallel circular members 20 and 21 soldered or otherwise rigidly connected to the circularly curved vertical members 2222, each of which at one end is connected to the ring 18 and at 7 its opposite end is fastened to a small top ring 23.

In applying the guard to a sprinkler head, the two members 9-9 of'the base ring are swung apart as indicated in Fig. 4 and are thereafter closed around the base 8 and I neck 8 of the head so that said base enters the depression 13 at the. central part of the web portions 13. At the same time that the two parts 99 are being closed around the sprinkler head, the wire guard is placed adjacent said parts so that its bottom wire 18 is engaged by and liesbetween the two sets of projections 17 and 19 thereof, after which the screw 12 maybe inserted and the parts 99 be rigidly connected.

It is particularly to be noted that the base 1 stantially flat elements in ent,

portion'o-f the guard is cut away or open as indicated at 25, so it has no portion which by any possibility could be caused to project under the lower arm of thelever 6 in such manner' as to prevent full down- Ward swing of the latter oecuring when the fusible link releases this arm from the coasting arm ofthe lever 5. In other Words, there is no possibility of relative movement of the base ring 99 of the guard upon the sprinkler head, and even-the Wire portion of said guard is likewise prevented frommore than relatively slight rotary movesince the projections come into engagement with the curved members 22 When the latter is slightly turned in either direction.

l claimi' i a, V 1. A sprinkler guard including an enclosing cage and a base consisting .OftWO subhinged together, each having a side -opening and foi'i'ned with an edge indentation for the reception ofth nipple of a sprinkler head, the face of said base adjacent the edge recesses thereof having a depression for the non-rotatable reception of the yoke base of a sprinkler head for retaining the latter in position With its levers adjacent one of the side openings of said base. r

- 2 A sprinkler guard consisting of a Wire body and a base made in tWo parts hinged together, each of said parts having sets of inwardly projecting tongues engaging the body and having a central web defining sid openings, said web haying an opening for the passage of the nipple or a sprinl'zle'r head and being formed with portions tor enrotatably engaging the yoke base of the sprinkler head.

RTHUR o. RQWLEY.

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