US907000A - Sprinkler-head. - Google Patents

Description

G BRENT SPBINKLQR-HBAD. APPLIoAmox FILED lux 25 1907 Patented D00. 15,1908.

Messes;

CHARLES BRENT, OF BRANDON, MANITOBA, CANADA.

SPRINKLER-EZE AD.

No. 907,000.A

Specication of Letters Patent.

Patented Tice. 15, 1995;.

Application filed March 25, 1907. Serial No. 364,256.

To all whom 'it may concern.'

Be it known that I, CHARLES BRENT, residing at Brandon, in the Province of Manitoba and Dominion of Canada, have invented a certain new and useful Improvement in Sprinkler-Heads, of which the following is a full, clear, and exact description, reference being hadto the accompanying drawings.

This invention relates to improvements in sprinkler heads set forth in my co-pending application for sprinkler heads, Serial Num* ber 342,015 filed Nov. 5, 1906, wherein a valve and spreading device is mounted in a suitable frame above a valve seat and nozzle carried by a diaphragm, whereby when the valve 'is pressed against its seatit prevents a discharge through the head. A suitable device is arranged in conjunction with the valve and its seat for holding the former upon the same and it is. in connection with this device that the present invention has been devised.v In-this co-pending application an opening is arranged through the frame and through the valve stem in a manner such that when the valve is seated these o enings register and a fusible pin is inserted t erein for holding the valve upon its seat.

It has been found that there is a draw back to this construction due to the fact that the heat does not get ready access to the pin, inasmuch as the. surrounding metal of the frame at the valve stem prevents such access. In the present invention therefore the parts are arranged in a manner such that the o ening in the valve stem is larger' than the iqusible pin and is arranged in the stem so that when the valve is firmly seated the pin will take in suitable recesses in the under side of the frame at the top, so that the greatest possible amount of free space is provided about the in.-

T e invention may be further briefly summarized as consisting in the construction and combination of parts hereinafter set forth in the following descriptions, drawings and claim.

Referring to the drawings Figure l is a sectional view of a head constructed, according to my invention; Fig. 2 is a sectional vieviT of the u per part of the frame showing the pin in p ace and Fig. 3 is a detail view of a portion of the valve stern. with the pin in place.

In the drawings a preferred construction receive a threaded portion l of the frame 5, i

which holds the diaphragm 6 in place upon the base. This diaphragm carries the'noazle 7 which is provided with a seat 8., The frame 5 has an opening 9 in the u Viper part thereof for the rece tion of the va ve stem 10 and also has at t 1e lower part thereof recesses 11 for the reception of the fusible pin i2. These recesses 11 are preferably of arc-shape but are based upon a greater radius than that of the pin whereby the latter will engage in the recess at a `single point and the greatest amount of space possible is thereby provided about the pin as shown in Fig. 2.

The valve stem. 10 is provided with a valve 13 and an opening M; which is greater in diameter than the fusible pin 12 and is located at a point such that when the valve 13 is iirmly seated, with lthe diaphragm 6 deflexed, the fusible pin 12 may be inserted through the opening 14 and into the recesses 11 in. a manner such that the valve is held firmly upon its seat.

,in operation the pin assumes the position in the opening of the stem and in the recesses in the manner shown in the drawings, so that there is free space about the pin in the recesses'of the frame and there is free space above the pin in the opening of the valve stem, whereby heat produced by the fire may readily act upon this pin without necessitating the heating of all of the 'paris te the extent of fusing it.

Having described my invention, l claim:

In a sprinkler head, in combination, a base, a nozzle a valve scat mounted in said base, a supporting frame extending above said base, a guiding member carried by said. frame and having an opening through the same for a valve stem and provided with curved recurve recesses at the bottom of said guiding cesses on each side of said opening at the botmember. 10

tom, a valve for operating said valve seat, a In testimony whereof I aHX my signature stem for said valve slidably mounted in the in Iohe presence of two Witnesses.

opening in said guiding member and having CHARLES BRENT. a hole in the stem and a fusible pin of less di- Witnesses: ameter than the hole in said stem and MICHAEL J. GALVIN,

adapted to project laterally and bear in the Y HARRY E. MONTGOMERY.

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