US1648197A - Water-operated circuit closer - Google Patents

Water-operated circuit closer Download PDF

Info

Publication number
US1648197A
US1648197A US96404A US9640426A US1648197A US 1648197 A US1648197 A US 1648197A US 96404 A US96404 A US 96404A US 9640426 A US9640426 A US 9640426A US 1648197 A US1648197 A US 1648197A
Authority
US
United States
Prior art keywords
water
operated circuit
circuit closer
salt
absorbent material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US96404A
Inventor
Benjamin T Roodhouse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US96404A priority Critical patent/US1648197A/en
Application granted granted Critical
Publication of US1648197A publication Critical patent/US1648197A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/42Switches operated by change of humidity
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S200/00Electricity: circuit makers and breakers
    • Y10S200/30Fluid conductor

Definitions

  • My present invention relates to the provision of a water operated circuit closing device and has special reference to the provision of such a device which may be placed so as to detect leaks.
  • My device is intended to be placed at joints or other places where leaks may commence with a'suitable electric circuit, or circuits, in which an alarm is included, so that the presence of the leak will be indicated at its inception.
  • Fig. 1 is an elevation of one form of water operated circuit closer
  • Fig. 2 is a central vertical, longitudinal section through Fig. 1;
  • Fig. 3 is an elevation of a modified form i of a water operated circuit closer
  • Fig. 4 is a central vertical, longitudinal section of the structure shown in Fig. 3;
  • Fig. 5 is a schematic diagram of a circuit in which either of the above illustrated circuit closers may be included.
  • Fig. 6 is an elevation of a mounting clip.
  • a dry salt, 8 such as sodium chloride or ammonium chloride. or in fact, any salt which, with water, will form an electrolyte.
  • This metallic conductor band of course, can be entirely dispensed with but it is con Serial No. 96,404.
  • the interior conductor wire, 14, and the exterior conductor wire, 17. may be respectively secured to conducting caps, 18 and 19, provided upon the respective ends of the device.
  • any suitable circuit may be employed in connection with the structures heretofore described such as a battery Axor any other source of electrical supply, with leads B and C taken from the respective poles of the source of supply.
  • leads B and C taken from the respective poles of the source of supply.
  • leads B and C included a visual or audible alarm device Across the leads B and C are situated the devices heretofore described.
  • a conductor of each said device being secured to opposite leads firornrtheflsource of supply.
  • --'Th"e absorbent material, and the dry salts. heretofore mentioned, are not conductors of electricity, but as soon aswater is brought into contact with the ab orbent material it is carried thereby to. the salt which the absorbent material retains. The saltis thereby dissolved forming an electrolyte and thereby providing a conductor for the electricity between the terminals of the circuit closer.
  • a fairly pure grade of common salt is neither hydroscopic nor deliquescent and therefore no inadvertent operation of the de vice need be anticipated on account of damp Having described my invention What I weather or temperature changes. claim as new and desire to secure by Letters In using this invention with sprinkler s s- Patent is: terms it is well known that the water carried A water operated circuit closing device 1 5 by such systems is usually highly impure comprising spaced conductors connected by from sedimentation and other causes so that non-conducting, absorbent material and a the devices may be operative in such condry salt, which, with water, will form an nection without the presence of the salt, but electrolyte, held in position and separated I, nevertheless, prefer the presence of the from said conductors by said absorbent ma- 10 salt as adding considerable dependability in terial.

Landscapes

  • Examining Or Testing Airtightness (AREA)

Description

Nov. 192 7.
' B. T. ROODHOUSE WATER OPERATED cmcurr CLOSER Filed March 22. 1926 Patented Nov. 8, 1927.
T E T F F I Q E BENJAMIN T. RODIDHOUSE, OF WILMETTE, ILLINOIS. Y
WATER-OPERATED CIRCUIT GLOSER.
Application filed March 22, 1926.
My present invention relates to the provision of a water operated circuit closing device and has special reference to the provision of such a device which may be placed so as to detect leaks.
In all systems employing a water circulation, leaks which sometimes are extensive and create great damage invariably commence very gradually, sometimes taking days, weeks or even months in enlarging to such an extent as to create appreciable loss or damage.
My device is intended to be placed at joints or other places where leaks may commence with a'suitable electric circuit, or circuits, in which an alarm is included, so that the presence of the leak will be indicated at its inception.
I accomplish the foregoing object by means of the instrumentalities illustrated in the accompanying drawing in which Fig. 1 is an elevation of one form of water operated circuit closer;
Fig. 2 is a central vertical, longitudinal section through Fig. 1;
Fig. 3 is an elevation of a modified form i of a water operated circuit closer;
Fig. 4 is a central vertical, longitudinal section of the structure shown in Fig. 3;
Fig. 5 is a schematic diagram of a circuit in which either of the above illustrated circuit closers may be included; and
Fig. 6 is an elevation of a mounting clip.
The circuit closer illustrated in Figs. 1
and 2 is suitable for installation in a drip l4, pan or other receptacle and consists Qf- 'alf short length, say two inches or thereab'outs. of glass or other suitable tubing, 6. Located within the tubing are one or more layers of an absorbent material, 7, such as blotting paper, absorbent cotton, or wool asbestos.
Around the central portion of the absorbent material. or between the layers there of. if more than one layer is employed, is provided a dry salt, 8, such as sodium chloride or ammonium chloride. or in fact, any salt which, with water, will form an electrolyte.
To each end of the absorbent material is clipped by a suitable piece of copper or brass. 9. a length of conductor, 10, which is brought around to the outside of the tubing and there secured by solder. or in any other suitable way. to a metallic conductor band 11.
This metallic conductor band, of course, can be entirely dispensed with but it is con Serial No. 96,404.
placcd the salt, 16, as heretofore described in connection with the structure shown in Figs. 1 and 2.
About the outside of the rolled or wrapped absorbent material, 15, is coileda conductor Wire, 17.
The interior conductor wire, 14, and the exterior conductor wire, 17. may be respectively secured to conducting caps, 18 and 19, provided upon the respective ends of the device.
Any suitable circuit may be employed in connection with the structures heretofore described such as a battery Axor any other source of electrical supply, with leads B and C taken from the respective poles of the source of supply. In either lead A or B E included a visual or audible alarm device Across the leads B and C are situated the devices heretofore described. a conductor of each said device being secured to opposite leads firornrtheflsource of supply. --'Th"e absorbent material, and the dry salts. heretofore mentioned, are not conductors of electricity, but as soon aswater is brought into contact with the ab orbent material it is carried thereby to. the salt which the absorbent material retains. The saltis thereby dissolved forming an electrolyte and thereby providing a conductor for the electricity between the terminals of the circuit closer. I
I have found that in using common salt (sodium chloride) the dry salt is of such high resistance that no appreciable current will flow through it until water is added, but. nevertheless, it appears to me to be desirable to arrange the elements so that the absorbent material holds the salt away from the electrodes until the water operates upon the device.
A fairly pure grade of common salt is neither hydroscopic nor deliquescent and therefore no inadvertent operation of the de vice need be anticipated on account of damp Having described my invention What I weather or temperature changes. claim as new and desire to secure by Letters In using this invention with sprinkler s s- Patent is: terms it is well known that the water carried A water operated circuit closing device 1 5 by such systems is usually highly impure comprising spaced conductors connected by from sedimentation and other causes so that non-conducting, absorbent material and a the devices may be operative in such condry salt, which, with water, will form an nection without the presence of the salt, but electrolyte, held in position and separated I, nevertheless, prefer the presence of the from said conductors by said absorbent ma- 10 salt as adding considerable dependability in terial.
operation. BENJAMIN T. ROODHOUSE.
US96404A 1926-03-22 1926-03-22 Water-operated circuit closer Expired - Lifetime US1648197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US96404A US1648197A (en) 1926-03-22 1926-03-22 Water-operated circuit closer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96404A US1648197A (en) 1926-03-22 1926-03-22 Water-operated circuit closer

Publications (1)

Publication Number Publication Date
US1648197A true US1648197A (en) 1927-11-08

Family

ID=22257191

Family Applications (1)

Application Number Title Priority Date Filing Date
US96404A Expired - Lifetime US1648197A (en) 1926-03-22 1926-03-22 Water-operated circuit closer

Country Status (1)

Country Link
US (1) US1648197A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443687A (en) * 1946-06-21 1948-06-22 Julius L Marquard Rain alarm device
US2617972A (en) * 1949-09-28 1952-11-11 Hugh G Nutter Automatic rain-responsive top and window lifting system
US2623391A (en) * 1946-09-12 1952-12-30 Malecki Jerzy Means of vapor concentrations determination
US2674101A (en) * 1950-09-08 1954-04-06 Int Harvester Co Refrigeration control means
US2866454A (en) * 1957-08-07 1958-12-30 Stanley C Mckenzie Therapeutic device
US2891478A (en) * 1955-12-05 1959-06-23 Tepco Inc Triggering device
US3056935A (en) * 1959-09-21 1962-10-02 Danfoss Ved Ingenior Mads Clau Feeler element for a humidostat
US3059814A (en) * 1959-11-09 1962-10-23 Eugene E Poncel Actuator for emergency water equipment
US3260809A (en) * 1964-07-17 1966-07-12 Ko Ind Moisture-shortable fuse for a motor circuit
US3382493A (en) * 1964-11-04 1968-05-07 Thermal Conduits Inc Underground pipe insulation liquid-detector
US3409825A (en) * 1966-01-04 1968-11-05 Esb Inc Multicell storage battery tester having sponge-like material in contact with each probe
US3722408A (en) * 1970-02-20 1973-03-27 Us Navy Anti-swimmer charge
US3793586A (en) * 1971-12-08 1974-02-19 Micador Electronics Pty Ltd Apparatus for detecting the presence of water in aircraft fuel tanks
US3940868A (en) * 1973-11-30 1976-03-02 Northcutt Michael E Fish lure
US4347683A (en) * 1980-09-03 1982-09-07 John Maxim Conductive fluid activated devices
US5015958A (en) * 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5235286A (en) * 1985-06-12 1993-08-10 Raychem Corporation Method for detecting and obtaining information about changers in variables
US5382909A (en) * 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443687A (en) * 1946-06-21 1948-06-22 Julius L Marquard Rain alarm device
US2623391A (en) * 1946-09-12 1952-12-30 Malecki Jerzy Means of vapor concentrations determination
US2617972A (en) * 1949-09-28 1952-11-11 Hugh G Nutter Automatic rain-responsive top and window lifting system
US2674101A (en) * 1950-09-08 1954-04-06 Int Harvester Co Refrigeration control means
US2891478A (en) * 1955-12-05 1959-06-23 Tepco Inc Triggering device
US2866454A (en) * 1957-08-07 1958-12-30 Stanley C Mckenzie Therapeutic device
US3056935A (en) * 1959-09-21 1962-10-02 Danfoss Ved Ingenior Mads Clau Feeler element for a humidostat
US3059814A (en) * 1959-11-09 1962-10-23 Eugene E Poncel Actuator for emergency water equipment
US3260809A (en) * 1964-07-17 1966-07-12 Ko Ind Moisture-shortable fuse for a motor circuit
US3382493A (en) * 1964-11-04 1968-05-07 Thermal Conduits Inc Underground pipe insulation liquid-detector
US3409825A (en) * 1966-01-04 1968-11-05 Esb Inc Multicell storage battery tester having sponge-like material in contact with each probe
US3722408A (en) * 1970-02-20 1973-03-27 Us Navy Anti-swimmer charge
US3793586A (en) * 1971-12-08 1974-02-19 Micador Electronics Pty Ltd Apparatus for detecting the presence of water in aircraft fuel tanks
US3940868A (en) * 1973-11-30 1976-03-02 Northcutt Michael E Fish lure
US4347683A (en) * 1980-09-03 1982-09-07 John Maxim Conductive fluid activated devices
US5015958A (en) * 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5382909A (en) * 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
US5235286A (en) * 1985-06-12 1993-08-10 Raychem Corporation Method for detecting and obtaining information about changers in variables

Similar Documents

Publication Publication Date Title
US1648197A (en) Water-operated circuit closer
CH431657A (en) Insulating casing for an uninsulated electrical connection device, intended to be traversed by the conductors connected to this device
CH468092A (en) Device for the electrical connection of mutually insulated electrical conductors
US3582531A (en) Electrochemical grounding rod
US20150357742A1 (en) Electrode structure with electric-shock prevention function
SE7712933L (en) COUPLING DEVICE
FR2455371A1 (en) DEVICE FOR CONNECTING AN INSULATED BYPASS CONDUCTOR TO AN AERIAL CABLE
PL201750A1 (en) DEVICE FOR TERMINATION OF MULTIPLE INSULATED ELECTRICAL CABLES BY PRESSING THEIR INSULATING INSULATION OF THE CONTACT PARTS OF THE ELECTRICAL CONNECTOR
US2782387A (en) By-pass facilities for socket-type electric meters
FR1126959A (en) Very flexible flexible conductor, for electrical pipes
ES396218A1 (en) Enclosed switchgear
GB750843A (en) Improvements in heat sensitive electrical devices
GB862654A (en) Improvements relating to electric power cables
US1733861A (en) Electric-circuit connecter
FR1524627A (en) Fastening device for electrical installation devices, in particular for circuit breakers for the protection of pipelines
GB775997A (en) Improved enclosure for a line tap or other electric connecting device
GB747630A (en) Improvements in or relating to electric terminal blocks
ES368392A1 (en) Device for establishing an electrical field in rooms and vehicles
FR823809A (en) Device for conductively connecting the ends of wires or cables used particularly as electrical conductors
FR542766A (en) Clamping device for electrical conductor connections and fuse wires
FR1059213A (en) Installation for pulse-free switching on electrical systems with power transformers
GB344132A (en) Improvements in electric transmission lines
GB685705A (en) Improvements relating to welding cables
CH444944A (en) Procedure for fixing the terminals to electrical installation equipment
ES6254Y (en) Insulating tube device for electrical conductors.