US1022446A

US1022446A - Sprinkler-alarm device.

Info

Publication number: US1022446A
Application number: US29979806A
Authority: US
Inventors: Everett L Thompson; John R Hamilton
Original assignee: VENTURI ALARM Co
Current assignee: VENTURI ALARM Co
Priority date: 1906-02-06
Filing date: 1906-02-06
Publication date: 1912-04-09
Anticipated expiration: 1929-04-09

Description

E. L. THOMPSON & vR. HAMILTON.

SPRINKLER ALARM DEVICE. APPLICATION nun) PEB.6, 1906.

2 SHEETS-SHEET 1.

22,446. Patented Apr, 9, 1912.

E. L. THOMPSON & J. R. HAMILTON. I

SPRINKLER ALARM DEVICE.

APPLICATION FILED rims, 190s Patented Apr. 9, 1912.

2 SHEETS-SHEET 2.

WIN .SEJ-

WW ATTORNEYS to actuate the alarm, the valve casing 86 being formed with an exhaust chamber 71 at its upper part and intermediate neutral chamber T2 and a pressure chamber 73 on the other side of the neutral chamber. The balanced valve comprises the stem to which the upper portion 15 of the valve is secured, the facing 19 being held in place by a suitable washer, as indicated, and cooperating iththe upper valve seat Tl between the neutral and exhaust chambers. The lower part of this valve has a similar facing 75 which is shown as engaging the movable valve seat 76 mounted on the diaphragm the upper limit of the movement of this valve seat being limited by the stop 77. lVhen in the closed position indicated this bala1icecl valve closes connection between the neutral chamber 72 and the exhaust and pressure chambers 71 and T3 and the yielding way in which one of the valve seats mounted insures an accurate closure in both instances. The pressure pipe 23 con'miunicates with the pressure chamber 73, the exhaust pipe 1% which communicates with the interior of the float chamber 25 connects with the exhaust chamber 71, these two chambers being also connected by the pipes 16 and 1.7 with a suitable ditlerential gage 18 so that the operation of the device may be indicated The alarm devices may be connected with the alarm pipe 21 leading. as indicated, into the neutral chamber 72 ot' the balanced valve. An electrical alarm may be used comprising a flexible diaihragm 'll mounted within a suitable chamjer 87, a contact lever being indicated as red to one terminal 49 andhaving an arm i bearing on the diaphragm l6 so that pressure below the diaphragn'i raises this arm and lever to make electrical connection with the other contact or terminal 50 which is insulated in any desired way. In this manner the circuit through the electric bell 58 and battery 45 is completed and an alarm signal given at any desired place. A ineclrinical alarm may also be used and a suitable watcr motor ll) is indicated as connected with the alarm pipc 21, so that when water passcsthrough this pipe and out through the 1 discnargc pipe at the shalt 40 of the motor is rotated turning the disk ll: and throw ng the hannncrsla into contact with the bell l-l. .inothcr alarm may also be employcd comprising a clo cr bulb within the exhaust chamber 31. which is indicated in detail, in Fig. 1-3. This closer bulb may be given the form of a bulb 3-3 3 of glass or other material within which a quantity of mercury ll may be placed or other conducting means arranged. The two contacts (ll) cntcr the hcad Si extend within the bulb adjacent tln' h-vcl the mercury when in the horiz ntal lrti.-,!

of insulating material and their bare ends t'ion indicated in Fig. 3. This head may be kept in place by a screw -ap 5S engaging the bulb. The contacts (30, which are prel'crably of steel or other resilient material, enameled or otherwise covered with insulating substance, extend from the bulb through a suitable insulating plug 52 in the side of the exhaust chamber and the contacts are in circuit with the (cctric bell l2 and battery 13 so that when the closer bulb is raised by a rise in the level of the mercury within the exhaust chamber, a sullicicnt tilting takes place to make electric comiection between the bare ends 8t of the contacts 60, close the bell circuit and ring the alarm. The operation of this form of device illustated in Fig. l as will be apparent from the foregoing description is that in the position indicated there is a direct open connection through the Venturi or jet device around the check valve in the supply pipe. lVater hammer and other accidental variations in pressure can thus be neutralized and will not atl ect the alarm. ll", however, there a flow of water from the distrilmtingsystem the steady flow through the jet device causes a diminution of pressure in the exhaust passage 7 and suction pipe 11, so that the pressure in the exhaust chamber ll is less than that in the pressure pipe 23, pressure chamber Qt and float chamber This causes a llow of the mercury or other tluid out. or" the float chamber througlnth hoke passage '78 and into the exhaust chamber. This causes the contact bulb to float up, the flexible contact (30 allowing this action, and when a sullicient tilting of the,bulb has taken place clcctri ral connection is made through the contacts and bell circuit ringing the alarm, the alarm being retarded to the extent desi red by the delayed How of theliquid through the cholte passage of the ret'ardcr. About this time also the level of mercury in the float chamber has dropped to such an extent that the valve 216 has scaled itself on the valve 50, thus closing.connection between the pressure chamber 3'! and the float chamber below. The further action of the lt'l device causes a considerable diminution oi pressure in thc exhaust and float chainhers, and also in the exhaust pipe ll which connects: with the cxhansli chamber Tl. This lifts the balancedvalve from its seat since the pressure chamber 73 is under the full head existing in the supply pipe 1: also as soon as the balanced valve li'l ls. this water pressure in the supply pipe is at once conn :nnuicatcd to the diaphragm ll ringing the clcclric bell 23S and the water passing through the alarm pipe .Zl also operates the mechanical alarm. as has bccn described.

it is not nc cssary in all cases to employ the balanced valvc in this svs'tcni. The de vicc indicated in Fig. 2 has the same consecured. to its lower oortion for coo'acration struction of valve casing and jet device which has been described and the exhaust or suction pipe 11 also connects the exhaust passage of the device with the suction or exhaust chamber The pressure pipe 23 in. this case connects with the head. 90 cured on top of the float chamber by the bolts 26 as described so as to term a pressure chain Mar 91 within this head. An alarm chamber 92 15 also formed wlthin this head, tlns chamber. having a suitable valveseat ber 3 and egpierates to withdraw the mercury or other liuid "lirom the float chamber through the choice passage 78. This reduces the upward press re of theiloat 27 against the alarm valve which in the position indicated holds it firmly seated so as to close 1 e alari'n chais'nber and after this presc has been 'lvilhdrawn and the lloat moved dmvnvvard until it engages the lower portion oil he valves, the alarm valve tci'lds to be drawn away from its seat. The upward pressure within this pressure chamber and float chamber, which by reason 01": the prespipe is equal to that within the supply pipe, holds this alarm valve closed for a time and then when it is finally released it comes open at once and the parts move quickly to such an extent that thcfloat valve iunnediately falls against its seat 56 so as to tightly close the communication bet ween. the pressure chamber 91 and the float chamber Under these circumstances, water under pressure passes through the pressure pipe 523 into the alarm chamber 92 and through the alarm pipe so as to operate the electric bell through the flexible dia phragm l6 and connections indicated and also the mechanical alarm through the water n'iotor The rise of the mercury in the exhaust chamber 34 also operates to, tilt the contact bulb and make electrical connection between the ends 81 of the'contacts G0 'soas to close the'circuit operating the bell 1 1t is, course, apparent that by properly adjustmg the size of the choke passage, which may be done by moving the choke valve or otherwise the delay in action which this recauses may be sruta'bly varied. l Wing described this invention 111 coir 1st passage 7 and exhaust pipe 11 nection with said illustrative embodiments thereof, to the details of which we do not desire to be limited, what is claimed as new and what we desire to secure by Letters Pat ent isset forth in the appended claims.

l, In sprinkler alarm devices, a supply pipe connected with a distributing system, a

valve casing, a check-valve s ngularly supported within said casing and substantially in line with said supply pipe, a 1st device within said casing, a retarder conun'lsing a float chamber, a. suction chamber communicating with said float chamber through a choke passage, a float in said float chamber, a iioat valve opcntcd by, said float, said jet device being connected with said suction chamber to cause a. diminution of pressure therein on the commencement of flow in said distributing system, a balanced valve having an exhaust chamber, a pressure chamber and an intermediate neutral chamber, a pressure pipe connecting said supply pipe and the Pressure chambers of said balanced valve and retarder, an alarm and an alarm pipe connecting said alarm with sald neutral chambers 2. In sprinkler alarm devices, a supply pipe, a distributing system connected there with, means to maintain a difference of pressure in said pipe on the commencement of flow therethrough, a jet device comprising a contracting passage having a, direct open connection with said supply pipe adjacentsaid means, a retarder comprising-a oat chamber, a suction chamber connected therewith through a choke passage, a float having float valve connected therewith in said I float chamber, a suction pipe connecting said suction chamber with said jet device, a balanced valve comprising an exhaust chamber, a pressure chamber and an intermediate neutral chamber, an exhaust pipe connecting said exhaust chamber with said float chamber, an alarn'i andan alarm pipe connecting said alarm with said neutral chamber and a pressure pipe connecting said supply pipe with said pressure chamber and with said rctarder,

' 3. In sprinkler alarm devices a supply pipe, a distributing system connected therewith, mcans to maintain a diflerence of pressure in said pipe on the con'nnencemeut oit' liow therethrmigh, a jet device having direct open connection with said supply pipe adjacent said means, a'returder comprising a float chamber, an exhaust chamber connected with said float chamber through a choke passage, a float valve fin-said chamber, a balanced valve having an exhaust chamber connected with said lioat chamber, a pressure chamber connected with said tloat chamber and with said supply pipe and a neutral chamber connected with an alarm pipe and terial therefrom, an alarm, and mains to cause a movement. in said liquid on the be l. In sprinkler alarm devices, a jet device to be connected to a supply pipe, a retarder comprising a float chamber, communicating with a suction pa sage of said jet device through a choke mssagc, a float, and float valve in said tloat chamber, a pressure pipe to be connected with a supply pipe and with said float chamber, an alarm, and means to operate said alarm by the reduction in pressure in said lloat chamber.

5. ln sprinkler alarm devices, a jet device to be connected with a supply pipe, a retardcr comprising a float chamber, a float within said chamber, a lloat valve operated by said float, a suction pipe. communicating with said tloat chamber and said jet device, an alarm, and means to operate. said alarm from the reduction in ywessure in said float chamber.

(3. ln sprinkler alarm devices, a jet device to be connected with a supply pipe, a float chamber, a float within said chamber. a float valve operated by said float. a suction pipe communicating with said jet device and with said float chamber to exhaust niaoperate said alarm on the closing of said tloatvalve by the reduction in pressure in said float chamber.

7. In sprinkle' alarm devices, a chamber containing a non-corrosive liquid, means to move said liquid on the beginning of How through the supply'pipe of the connected system, a buoyant closer bulb resiliently mounted within said chamber to float in the liquid therein and tilt as said liquid moves, an electrical contact within said bulb to be connected to an alarm and electrical conducting means within said bulb to complete said alarm circuit.

8. in sprinkler alarm devices, a chamber having liquid mercury therein. means to ginning of flow through the connected sprinkler system, an electrical alarm. a closer bulb movably mounted within said chamber and floating in the liquid therein and-an electrical contact in said bulb connected to said alarm to complete said alarm ircuit on movement of said liquid to the desired extent.

9. ln sprinkler alarm devices, a jet device l to-be connected with the supply pipe. :1 re tardcr connected with and operated by said i jet device. a balanced valve comprising an I exhaust chamber. a neutral chamber, and a pressure chamber, an alarm. an alarm pipe connecting said alarm with said neutral chamber, a pressure pipe connecting said pressure chamber with said supply pipe and an exhaust pipe connected through said retardcr with said jet device.

10. in sprinkler alarm leviccs, to be operated by a supply pipe,

a jet device a. balanced l valve comprising an exhaust chamber, a neutral chamber and a pressure chamber, an alarm connected with and operated by pressure in saidneutral chamber and a, liquid flow retarder between said balanced valve and said jet device.

11. In sprinkler alarm devices, a jet device to be operated by a supply pipe, a balanced valve comprising an exhaust chamber, a neutral chamber and a pressure chamber, an alarm connected with and operated by pressure in said neutral chamber and a retarder between said balanced valve and said jet device.

121a sprinkler alarm devices, means to create a ditlerenee of pressure on the commencement of How through the distributing system, a balanced valve having an exhaust chamber, a neutral chamber and a pressure chamber, an alarm connected with and 0perated from said balanced valve and a liquid flow retarder between said balanced valve and said means.

13. In sprinkler alarm devices, means to create a difference. of pressure on the com-- mencement of flow through the distributing system, a balanced valve having an exhaust chamber, a neutral chamber and a pressure chamber. an alarm connected with and operated from said balanced valve and a re tardcr between said balanced valve and said means.

ll. In sprinkler alarm devices, means to cause a difference of pressure on the C0111- mencement of flow through the distributing system during its emergency operation, an alarm and a liquid flow rctarder comprising a float interposed between said alarm and said means and o )erating to delay the action of said alarm.

15. In sprinkler alarm devices, a float chamber having mercury therein, there be ing a passage formed with a constricted portion adjacent its lower end and co|nmunicating with said float chamber, a float having a connected float valve freely mounted in said float chamber. an alarm controlled by said float valve and means to withdraw mercury from said float chamber through said passage on the comuienccment oi flow in a sprinkler system.

16. ln sprinkler alarm devices. a rctarder having a chamber connected with a sprin klcr system, liquid in said chamber to move through a restricted passage on the commencement of How through said system, a closet bulb floating in the liquid in said chamber. an electrical contact within said bulb to be connected to an alarm and electrical conducting means within said bulb to complete the circuit of said alarm on movement of said liquid to the desired extent.

17. In sprinkler alarm devices. means to cause a difference of pressure by the flow of fluid from the distributing system, a re tarder having a chamber connected. with said means, a closer bulb in said chamber, resilient spring contacts connected with and supporting said, closer bulb and with an alarm circuit and a. conducting fluid within said closer bulb to make the electrical connection with said contacts on the tilting of said bulb.

18. In sprinkler alarm devices, a cham her to be connected with a supply pipe and experience a difference of pressure on the beginning of flow through said supply pipe, an electrical alarm, a buoyant closer bulb normally floating within said chamber, an electrical. Contact within said bulb connected to said alarm and electrical conducting means within said bulb to complete said alarn'i. circuit on the change of level of liquid within said chamliier.

19. In sprinkler alarm devices, a supply pipe and connected distributing system, means to maintain a dillerence of pressure in. said pipe on the commencement of flow thcretln'ough, a jet device having direct open connection with said supply pipe adjacent said. means, a rctarder con'iprising a lloat chamber containing mcrcunv, an ex baust cl amber connected with said float chamber through a choke passage, a float rah in said lloat chamber, a balanccd valve having an exhaust chamber connected with said lloat chamber, a. pressure chamber connected with said float. chamber and with said supply pipe and a neutral chamber conneeted with an alarm pi i and an alarm.

20. in sprinlile' alarm devices, a jet derice to be connected with a sprinkler supply pipe, a float chamber containing: u'icrcury, a tloal; within said cliau'iber, a float valve operatcd by said lloat. an alarm controlled by said tloat valve, and a pipe connected with said. float chamber and with said jet derice.

in sprinl-clcr alarm devices, a jet device to be connected with a s-a 'irinlder system, a n'iercury rctarder connected with and operated by said device, a l'HllflIlifWl valve comprising an exhaust chamber, a neutral chamber and a pressure chamber, a connected alarm comuumicating with said neutral chaniber, a pressure pipe connecting said pressure chamber with said supply pipe and. a pipe connecting said jet device and said retarder.

in sprinkler alarm devices, a jet device to be. connected with and operated by a s 'iriulilcr system, a balanced valve comprising: an exhaust. chamber, a neutral chamber and a pressure chamber, said neutral chamher to be connected with and operate an alarm and a u'iercury retarderbetween said balanced valve and said jet device.

i 'ucctcd sprinli'lcr system and warm control 23. In sprinkler alarm devices, a float chamber containing mercury, there being a passage comprising an adjustable constricted part adjacent its lower portion communicating with said ci'iamber, a lioat haviiu, a tloat valve connected thereto freely mounted. in said chamber and normally lloatinc; in said mercury, an alarm controlled by said lloat valve and means to more said mercury through said passage on the beginning ct flow through the cozmected sprinkler term.

2 1-. In sprinkler alarn'i devices, a. "float chamber containing; mercury, there being: a passage having a reduced part adjacent its lower portion connected with said float chamber, a tloat in said chamber and normally il iating in said mercury. a connected alarm control device and an alarn'i governed by said alarm. control device.

In sprinkler alarm devices, a chamber containing mercury to be connected with a sprinkler system and :ictuatcd. on the begiiming oil flow through the. sprinkler system during its en'm'gcncy operation, a tloat. in said chamber and nor-ma ly lloatine in '-said mercury and an operatirely m'mnected alarm control device to be connected with and govern an alarm actuated on the emergency operation c? said sprinkler system. q I

ill. in spriul er alarm devices. a chamber containing nu-rcury and connected with another chamber by a passage inning: a constricted part ai iaccut its lower portion,

on the heginningj;- oi tiow throi h the conling mans tloating: in said n'icreury to gz oiern the operation of an alarm.

37. in sprinkler alarm devices. a float chamber containing mercury m'uninm'iicatinn with a. passage proyidi-d with a. constricted portion, a float ha ring; a connected alarm controlliiig' device in said chamber and floating; in said mercury and means to cause the lnorci'i'icnl of said mercury through said passagifc on the. c:unmencemcnt of tlow through a sprinkler sysleisi.

28. Th spriulder alarm devices,

rice to be connected with a supply pipe, a. float chamber containing mercury, a lioat having: a connected float valve and moon ed in said chamheii, an alarm controlled by said float 'airc and a suction pipe communicating with said {load chamber and said jet oerice.

chamber containing mercury, a jet device to be connected with asupply pipe and having a suction passage conncctial with said float chamber, a float and connected alrrm coir trolling devices in said float chamber to conlrol the operation of an alarm.

in sprinkler alarm devices, a float 3t chan: liquie a sprinkler alarm devices, a float containing non-oxidizing neutral were being a passage provided with a cons icted oart adjacent its lower portion eon nunicating with said float chamber to be connected with asprinkler system, a float and connected alarm controlling device in said chamber and normally floating in the liquid therein to actuate an alarm on the commencement of flow in said sprinkler system.

31. In sprinkler alarm devices, -a float chamber containing substantially non-oxidizing neutral liquid, there being a passage communicating with said float chamber to normally be in open connection with a sprinkler system a float and connected alarm controlling device. in said chamber and normally floating in the neutral liquid therein to actuate an alarm on the commencement of flow in said sprinkler system during its emergency operation.

32. In sprinkler alarm devices. a float chamber containing substantially nonaqueous neutral liquid, there being a passage communicating with said float chamber to normally be in open connection with a sprinkler system, a float and connected alarm controlling device in said float chamber and normally floating in said neutral liquid therein to actuate an alarm on the commencement of flow in said sprinkler system during its emergency operation.

In sprinkler alarm devices, a float chamber containing a substantially nonoxidizing neutral liquid, there being a passage forming a normally open connection between said float chamber and the sprinkler system and alarm controlling means in said chamber normally floating in said neutral liquid to actuate an alarm on the coinmencement of flow in said sprinkler system during its emergency operation.

EVERETT L. 'lllOMPSOX. JOHN R. I'IAZVIILTON. "itncsses:

Hana r ll. DU N on N, JESSIE B. KAY.