US743512A - Apparatus for transmitting electrical communications. - Google Patents
Apparatus for transmitting electrical communications. Download PDFInfo
- Publication number
- US743512A US743512A US11815702A US1902118157A US743512A US 743512 A US743512 A US 743512A US 11815702 A US11815702 A US 11815702A US 1902118157 A US1902118157 A US 1902118157A US 743512 A US743512 A US 743512A
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- United States
- Prior art keywords
- relays
- electrical communications
- station
- earth
- transmitting electrical
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- 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
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- 238000010586 diagram Methods 0.000 description 5
- 210000002105 tongue Anatomy 0.000 description 4
- 230000011664 signaling Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- B60K35/10—
Definitions
- This invention relates to apparatus for transmitting electrical communications.
- the object of the invention is to utilize two I conducting-lines and the earth for the transmission of a number of different electrical communications, which may be calls or signals.
- each receiving-station there is placed in each a diiferent combination of relays, and at the transmitting-station there is provided means for transmitting to each receiving-station the particular combination of positive and negative currents suited to the particular combinationrelays at that station.
- the relays are in each case applied in such manner as to bring into action a local battery and apparatus by which the signaling telegraphic or telephonic communications are efiected.
- Figure 1 is a diagram illustrating an arrangement of keys and contacts for sending twelve difierent combinations of currents.
- Fig.2 exhibits diagrammatically twelve receiving arrangements corresponding to the twelve transmitting arrangements of Fig. 1, the corresponding transmitters and receivers being indicated by the same number.
- twelve keys 7c are arranged in a row over spring-contacts 15, each of which is connected to one or' the other of the line-wires A B E P N, of which A B are two line-Wires, P and N wires from the positive and negative poles, respectively, of a battery 0, and E an earth connection.
- the lines A, B, and E are connected to the positive or to the negative wire, or two of them are connected to either the positive or the negative wire, or one is connected to the positive and another to the negative wire.
- the closing of the circuit at any station can be effected only when the particular combination of currents transmitted is such that all the tongues are deflected toward the contacts.
- Eight suchchanges may be made when there are two lines and either the earth or a wire return, but only two relays at each station, and twelve changes may be made when there are three relays.
- a greater number of line-wires are employed, and consequently a greater number of relays actuated at each receiving-station, there can be a greater variety in the position of the contacts, and also a greater number of stations can be communicated with independently without a communication addressed to one being received by another.
Description
N0.74s,512. PATENTBDNOV.10,1903. 0. M.JAGOBS&A. H.NIGHOLSON. APPARATUS PORYTRANSMITTING ELECTRICAL COMMUNICATIONS.
2 SHEETS-SHEET 1.
APPLICATION rum) AUG. 2, 1902. no MODEL.
A B'EPN k; if f k; 770 hi.
No. 743,512. PATENTED NOV. 10,1903,
o. JACOBS & A. H. NICHOLSON.
APPARATUS FOR TRANSMITTINGELBGTRIGAL COMMUNICATIONS. Q
APPLICATION FILED AUG. 2. l902.
H0 HODEL. SHEETS-SHEET 2.
A B A 3 7Q i [E l j 6 2 i lfiz? Fay UNITED STATES Patented November 10,1903.
PATENT OFFICE.
CHARLES M. JACOBS, OF MAIDENHEAD, AND ARTHUR. H. NICHOLSON, OF WENDOVER, ENGLAND.
APPARATUS FOR TRANSMITTING ELECTRICAL COMMUNICATIONS.
SPECIFICATION formingpart of Letters Patent No. 743,512, dated November 10, 1903.
Application filed August 2, 1902.
To all whom it may concern:
Be it known that we, CHARLES MARK JACOBS, electrical engineer, residing at 110 Grenfell road, Maidenhead, in the county of Berks, and ARTHUR HAROLD NICHOLSON, electrical engineer, residing at 5 Ohiltern road, Wendover, in the county of Bucks, England, both citizens of England, have invented a certain new and useful Apparatus for Transmitting Electrical Communications, (for which we have applied for a patent in Great Britain, No.146, dated January 2, 1902,) of which the following is a specification.
This invention relates to apparatus for transmitting electrical communications.
The object of the invention is to utilize two I conducting-lines and the earth for the transmission of a number of different electrical communications, which may be calls or signals.
With the above and other objects in View, as will appear as the nature of the invention is better understood, the same consists, generally stated, in providing at a transmittingstation keys or other means of sending either a positive or a negative current by either of the conductors or by both of them together or a positive current by one and a negative current by the other. At each receiving-station the two conductors are connected with each other and to the earth, and in the three connections are placed relays, certain of. which are so polarized as to be operated'by positive currents, certain of which by negative currents, and others are not polarized. Where there are a number of receiving-stations with which communication is to be established, there is placed in each a diiferent combination of relays, and at the transmitting-station there is provided means for transmitting to each receiving-station the particular combination of positive and negative currents suited to the particular combinationrelays at that station. The relays are in each case applied in such manner as to bring into action a local battery and apparatus by which the signaling telegraphic or telephonic communications are efiected.
In the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate corresponding parts, there is illustrated diagrammatic- Serial No. 118,157. (No model.)
ally the manner in which the invention may be carried into effect where two wires and the earth are employed, it being understood that in all cases a return-wire may be employed in lieu of the earth.
In the drawings, Figure 1 is a diagram illustrating an arrangement of keys and contacts for sending twelve difierent combinations of currents. Fig.2 exhibits diagrammatically twelve receiving arrangements corresponding to the twelve transmitting arrangements of Fig. 1, the corresponding transmitters and receivers being indicated by the same number.
As shown in Fig. 1, twelve keys 7c are arranged in a row over spring-contacts 15, each of which is connected to one or' the other of the line-wires A B E P N, of which A B are two line-Wires, P and N wires from the positive and negative poles, respectively, of a battery 0, and E an earth connection. According as one or the other of the keys is depressed, the lines A, B, and E are connected to the positive or to the negative wire, or two of them are connected to either the positive or the negative wire, or one is connected to the positive and another to the negative wire.
In the diagram exhibited in Fig. 2, in which the direction of the currentand the motion of the tongues of the relays are shown by arrows, 1) designates the batteryat the receiving-station; t', the indicator or signaling instrument; m, n, and p, polarized relays; s, non-polarized relays; c, d, and 6, contacts, and E the earth.
As exhibited in Diagram 1, acurrent from the line A actuates the relay m, from which it passes through relay n to the earth E, the
tongues of both relays making contact at c' and d and completing the circuit of the battery through the indicator. In this case as no current flows through 5 its armature remains on the contact 6.
As exhibited in Diagram VI, a current passes from line B to line A through the polarized relays m and n, and as no current passes through the non-polarized relay 3 to the earth E the contact 6 remains closed. The circuit of the battery I) is closed through the contacts 0, d, and e.
As exhibited in Diagram VII,currents from both lines A and B actuate the polarized relays m and n and also the relay 19, through which the currents pass on their way to the earth. The circuit of the battery is closed through the contacts 0, d, and 6.
By changing at the different receiving-stations the positions of the contacts 0, d, and e relatively to the tongues of the relays the closing of the circuit at any station can be effected only when the particular combination of currents transmitted is such that all the tongues are deflected toward the contacts. Eight suchchanges may be made when there are two lines and either the earth or a wire return, but only two relays at each station, and twelve changes may be made when there are three relays. Where a greater number of line-wires are employed, and consequently a greater number of relays actuated at each receiving-station, there can be a greater variety in the position of the contacts, and also a greater number of stations can be communicated with independently without a communication addressed to one being received by another.
Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-- In an apparatus for selective electric signaling, the combination of a number of transmitting-keys with a like number of receivers, one at each signaling-station, each of the said receivers having its circuit broken by more than two relays, each of which relays is connected with a separate transmitting-lead, so that there are as many leads as there are relays at each station.
In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.
O. M. JACOBS. ARTHUR H. NICHOLSON. Witnesses:
GERALD L. SMITH, EDWARD GARDNER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11815702A US743512A (en) | 1902-08-02 | 1902-08-02 | Apparatus for transmitting electrical communications. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11815702A US743512A (en) | 1902-08-02 | 1902-08-02 | Apparatus for transmitting electrical communications. |
Publications (1)
Publication Number | Publication Date |
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US743512A true US743512A (en) | 1903-11-10 |
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ID=2812008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11815702A Expired - Lifetime US743512A (en) | 1902-08-02 | 1902-08-02 | Apparatus for transmitting electrical communications. |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423119A (en) * | 1943-11-08 | 1947-07-01 | Bell Telephone Labor Inc | Hydrophone selecting system |
-
1902
- 1902-08-02 US US11815702A patent/US743512A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423119A (en) * | 1943-11-08 | 1947-07-01 | Bell Telephone Labor Inc | Hydrophone selecting system |
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