US811654A - Electric-wave detector. - Google Patents
Electric-wave detector. Download PDFInfo
- Publication number
- US811654A US811654A US23720604A US1904237206A US811654A US 811654 A US811654 A US 811654A US 23720604 A US23720604 A US 23720604A US 1904237206 A US1904237206 A US 1904237206A US 811654 A US811654 A US 811654A
- Authority
- US
- United States
- Prior art keywords
- detector
- electric
- wave detector
- electrodes
- murphy
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/033—Magnet
Definitions
- invention consists, broadly, in magnetizabfe electrodes suitably arranged in respect to one another and bridged by magneticallysuspended conducting particles.
- magnetizabfe electrodes suitably arranged in respect to one another and bridged by magneticallysuspended conducting particles.
- For restoring the detector to its normal condition of high resistance means is provided for a movement relatively between the electrode forming part of the detector in question, (although in some cases the latter is not necessary, as the'vibration of the air and surrounding objects'due to noises, &c., is found to be sufiicient.)
- an adjustable magnet is arranged in proximity to the device.
- a telephone-receiver or sensitive relay, or both, with battery and potentiometer is connected to the detector in the usual way. I attain these objects by the mechanism illustrated in the accompanying drawing, in which the figure is a side eleva tion and sectional view in part of detector.
- the spring-motor A, spring clips B, and contact-brush C, together with non-magnetic metal column D, are securely fastened to insulating-base E.
- the clips B support the detector proper, which consists of an ebonite tube F and threaded at both ends, into which metal plugs G H are screwed.
- a thin glass tube is fitted into ebonite sleeve F.
- Both plugs in question are drilled longitudinally for the reception of stems of electrodes I J.
- Electrode I is adjustable by means of knurled head K and j am-nut L. To insure a reliable contact, stem J is fitted with a wheel M, upon which brush N bears.
- O is an insulating-coupling between motor and detector.
- Column D supports magnet P, rendered adjustable by clamping device Q.
- Leads R connect battery S and telephone-receiver T in series with detector. In practice a resistance U may be used to advantage as a current-regulator.
- the operation of the detector is as follows: Assuming that one at least of the electrodes is in motion, it is found that the filings, which are preferably of magnetic metal, forms a conducting-bridge across the electrodes under the influence of electric waves, and which is immediately rendered non-conducting automatically by the'movements between the conducting particles, thereby effecting the telephone receiver orrelay, as the case may be.
- the filings which are preferably of magnetic metal
- the detector herein described may be used also in the arts as an instrument for the detection and measurement of minute currents of electric ty. I therefore do not confine or wish to limit its uses to wireless-telegraph work.
Description
T. J. MURPHY. ELECTRIC WAVE DETECTOR.
APPLICATION FILED DEO.17. 1904.
mum-In :rI
Mines 65. v [777677f07f PATENTED FEB. 6, 1906.
UNITED STATES PATENT OFFICE.
THOMAS J. MURPHY, OF NEW YORK, N. Y.
ELECTRIC-WAVE DETECTOR.
Specification of Letters Patent.
Patented Feb. 6, 1906.
Application filed December 17, 1904. Serial No. 237,206.
To (ZZZ whom it may concern.-
Be it known that I, THOMAS J. MURPHY, a
sub'ect of the King of Great Britain, residing in t e city of New York, county of New York, and State of New York, have invented a new and useful Electric-Wave Detector, of which the following is a specification. invention consists, broadly, in magnetizabfe electrodes suitably arranged in respect to one another and bridged by magneticallysuspended conducting particles. For restoring the detector to its normal condition of high resistance means is provided for a movement relatively between the electrode forming part of the detector in question, (although in some cases the latter is not necessary, as the'vibration of the air and surrounding objects'due to noises, &c., is found to be sufiicient.) For the purposes of my invention an adjustable magnet is arranged in proximity to the device. A telephone-receiver or sensitive relay, or both, with battery and potentiometer is connected to the detector in the usual way. I attain these objects by the mechanism illustrated in the accompanying drawing, in which the figure is a side eleva tion and sectional view in part of detector.
Similar letters refer to similar parts throughout the drawing.
In the figure the spring-motor A, spring clips B, and contact-brush C, together with non-magnetic metal column D, are securely fastened to insulating-base E. The clips B support the detector proper, which consists of an ebonite tube F and threaded at both ends, into which metal plugs G H are screwed. A thin glass tube is fitted into ebonite sleeve F. Both plugs in question are drilled longitudinally for the reception of stems of electrodes I J. Electrode I is adjustable by means of knurled head K and j am-nut L. To insure a reliable contact, stem J is fitted with a wheel M, upon which brush N bears. O is an insulating-coupling between motor and detector. Column D supports magnet P, rendered adjustable by clamping device Q. Leads R connect battery S and telephone-receiver T in series with detector. In practice a resistance U may be used to advantage as a current-regulator.
The operation of the detector is as follows: Assuming that one at least of the electrodes is in motion, it is found that the filings, which are preferably of magnetic metal, forms a conducting-bridge across the electrodes under the influence of electric waves, and which is immediately rendered non-conducting automatically by the'movements between the conducting particles, thereby effecting the telephone receiver orrelay, as the case may be.
I do not wish to limit myself to the means as shown in the accompanying drawing of decohering my detect0ras, for example, where the incoming waves are not powerful no apparent motion is necessary at all between the electrodes or particles, and if it -does exist must be microphonic. Decohesion or state of high resistance is also arrived at by the approach of a magnet or magnetism of opposite 1polarity to existing residual magnetism in e ectrodes; nor do I confine myself to the construction or disposition shown in drawing, as the detector may be operated most eflicientlyin avertical position.
The sensitiveness and practicability of my invention as a current detector will be of great utility in the arts. I therefore do not wish to limit its uses to wireless-telegraph work alone.
The detector herein described may be used also in the arts as an instrument for the detection and measurement of minute currents of electric ty. I therefore do not confine or wish to limit its uses to wireless-telegraph work.
What I claim as my invention, and desire to secure by Letters Patent, is
1. In an electric-wave detector, electrodes in a magnetic field and bridged by ma netizable conducting particles, with means ofproducin motion between the said electrodes.
2. In an electric-wave detector, the combinati on of magnetizable electrodes in a magnetic field and brid ed by magnetic conducting particles, toget er with means of restoring the detector to its normal condition of high resistance, by a movement of the electrodes relative to one another as set forth.
In testimony whereof I have signed my name in the presence of two subscribing witnesses.
THOMAS J. MURPHY. Witnesses:
E. MURPHY, M. MURPHY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23720604A US811654A (en) | 1904-12-17 | 1904-12-17 | Electric-wave detector. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23720604A US811654A (en) | 1904-12-17 | 1904-12-17 | Electric-wave detector. |
Publications (1)
Publication Number | Publication Date |
---|---|
US811654A true US811654A (en) | 1906-02-06 |
Family
ID=2880133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US23720604A Expired - Lifetime US811654A (en) | 1904-12-17 | 1904-12-17 | Electric-wave detector. |
Country Status (1)
Country | Link |
---|---|
US (1) | US811654A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2500953A (en) * | 1948-09-24 | 1950-03-21 | Max L Libman | Magnetoresistor |
US2519449A (en) * | 1949-06-04 | 1950-08-22 | Eaton Mfg Co | Magnetic drive |
US2525571A (en) * | 1948-05-21 | 1950-10-10 | Martin P Winther | Dynamoelectric machine containing a magnetic fluid mixture |
US2575360A (en) * | 1947-10-31 | 1951-11-20 | Rabinow Jacob | Magnetic fluid torque and force transmitting device |
US2604964A (en) * | 1949-01-21 | 1952-07-29 | Martin P Winther | Magnetic fluid mixture clutch with plow |
US2656026A (en) * | 1950-10-31 | 1953-10-20 | Gen Electric | Permanent magnet brake |
US2661825A (en) * | 1949-01-07 | 1953-12-08 | Wefco Inc | High fidelity slip control |
US2667237A (en) * | 1948-09-27 | 1954-01-26 | Rabinow Jacob | Magnetic fluid shock absorber |
US2671545A (en) * | 1949-07-20 | 1954-03-09 | Stewart Warner Corp | Magnetic fluid clutch |
US2687500A (en) * | 1949-12-06 | 1954-08-24 | Westinghouse Electric Corp | Circuit interrupter |
US2733792A (en) * | 1956-02-07 | Clutch with magnetic fluid mixture | ||
US2736409A (en) * | 1950-11-16 | 1956-02-28 | Vickers Inc | Magnetic fluid mixture clutch containing iron and nickel particles |
US2744596A (en) * | 1949-06-04 | 1956-05-08 | Eaton Mfg Co | Magnetic drive |
US2796702A (en) * | 1955-02-24 | 1957-06-25 | Jr Albert G Bodine | Method and apparatus for sonic polishing and grinding |
US2809731A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel-coated iron particles |
US2840206A (en) * | 1950-11-16 | 1958-06-24 | Vickers Inc | Torque transmitting device with magnetic particles of nickel |
US2886151A (en) * | 1949-01-07 | 1959-05-12 | Wefco Inc | Field responsive fluid couplings |
US2897468A (en) * | 1956-10-05 | 1959-07-28 | Sylvania Electric Prod | Magnetic rotary contact |
US2906381A (en) * | 1952-05-14 | 1959-09-29 | Texas Instruments Inc | Methods of eliminating hysteresis effects in the magnetic clutch |
DE973130C (en) * | 1947-10-31 | 1959-12-03 | Eaton Mfg Co | Magnetizable substance made of ferromagnetic particles and their use for the transmission or absorption of mechanical energy |
-
1904
- 1904-12-17 US US23720604A patent/US811654A/en not_active Expired - Lifetime
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733792A (en) * | 1956-02-07 | Clutch with magnetic fluid mixture | ||
DE973130C (en) * | 1947-10-31 | 1959-12-03 | Eaton Mfg Co | Magnetizable substance made of ferromagnetic particles and their use for the transmission or absorption of mechanical energy |
US2575360A (en) * | 1947-10-31 | 1951-11-20 | Rabinow Jacob | Magnetic fluid torque and force transmitting device |
US2525571A (en) * | 1948-05-21 | 1950-10-10 | Martin P Winther | Dynamoelectric machine containing a magnetic fluid mixture |
US2500953A (en) * | 1948-09-24 | 1950-03-21 | Max L Libman | Magnetoresistor |
US2667237A (en) * | 1948-09-27 | 1954-01-26 | Rabinow Jacob | Magnetic fluid shock absorber |
US2661825A (en) * | 1949-01-07 | 1953-12-08 | Wefco Inc | High fidelity slip control |
US2886151A (en) * | 1949-01-07 | 1959-05-12 | Wefco Inc | Field responsive fluid couplings |
US2604964A (en) * | 1949-01-21 | 1952-07-29 | Martin P Winther | Magnetic fluid mixture clutch with plow |
US2519449A (en) * | 1949-06-04 | 1950-08-22 | Eaton Mfg Co | Magnetic drive |
US2744596A (en) * | 1949-06-04 | 1956-05-08 | Eaton Mfg Co | Magnetic drive |
US2671545A (en) * | 1949-07-20 | 1954-03-09 | Stewart Warner Corp | Magnetic fluid clutch |
US2687500A (en) * | 1949-12-06 | 1954-08-24 | Westinghouse Electric Corp | Circuit interrupter |
US2656026A (en) * | 1950-10-31 | 1953-10-20 | Gen Electric | Permanent magnet brake |
US2809731A (en) * | 1950-11-16 | 1957-10-15 | Vickers Inc | Magnetic particle coupling device with nickel-coated iron particles |
US2840206A (en) * | 1950-11-16 | 1958-06-24 | Vickers Inc | Torque transmitting device with magnetic particles of nickel |
US2736409A (en) * | 1950-11-16 | 1956-02-28 | Vickers Inc | Magnetic fluid mixture clutch containing iron and nickel particles |
US2906381A (en) * | 1952-05-14 | 1959-09-29 | Texas Instruments Inc | Methods of eliminating hysteresis effects in the magnetic clutch |
US2796702A (en) * | 1955-02-24 | 1957-06-25 | Jr Albert G Bodine | Method and apparatus for sonic polishing and grinding |
US2897468A (en) * | 1956-10-05 | 1959-07-28 | Sylvania Electric Prod | Magnetic rotary contact |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US811654A (en) | Electric-wave detector. | |
JP2006170667A (en) | Oil check sensor | |
JP4711723B2 (en) | Oil check sensor | |
US1746171A (en) | Apparatus for revealing shocks in any moving mechanism | |
US2828472A (en) | Magnetic welding ground clamp | |
US787089A (en) | Variable resistance or conductor for electric currents. | |
US1105924A (en) | Telephone. | |
US3564397A (en) | Linear variable capacitance transducer | |
US959967A (en) | Wave-receiving device. | |
US1002050A (en) | Receiver for signaling. | |
US3153710A (en) | Electrostatic relay for measuring small currents and charges | |
US1003210A (en) | Wave-detector for wireless telegraphy. | |
US315862A (en) | William l | |
US241067A (en) | Chaeles a | |
US437111A (en) | Josephiys henry gunning | |
US354402A (en) | Joseph | |
US794686A (en) | Portable audiphone. | |
US2894094A (en) | Chopper | |
US879117A (en) | Rectifier and detector. | |
US2199508A (en) | Vibrator | |
US775680A (en) | Resonance-relay. | |
US883437A (en) | Receiver for space signaling systems. | |
US796800A (en) | Receiver for use in wireless telegraphy. | |
US1014220A (en) | Monotelephone-relay. | |
US778275A (en) | Adjustable bolometer detector for electromagnetic waves. |