US114656A - Improvement in telegraphic transmitting instruments - Google Patents
Improvement in telegraphic transmitting instruments Download PDFInfo
- Publication number
- US114656A US114656A US114656DA US114656A US 114656 A US114656 A US 114656A US 114656D A US114656D A US 114656DA US 114656 A US114656 A US 114656A
- Authority
- US
- United States
- Prior art keywords
- improvement
- circuit
- transmitting instruments
- paper
- telegraphic transmitting
- 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
- 230000002238 attenuated Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
- H04L17/02—Apparatus or circuits at the transmitting end
- H04L17/12—Automatic transmitters, e.g. controlled by perforated tape
Definitions
- My invention consists in arranging the connections and portions of the instrument in such a manner that a reverse current shall be thrown upon the wire of the circuit by a. motion delived from the thickness of the paper when the same is drawn in between the plate or roller and the brush or disk.
- the device in question is represented by a side view.
- the battery is represented at c, and the groundwire at d, and the line-wire at f.
- the current will therefore be sent, when the circuit is closed, through the perforation of the paper; and when the unperiorated portion of the paper is beneath the brush or stilns b the end is lifted suflicient- Iy to touch, or nearly so, the point 13, that is adjustable and mounted in any convenient manner.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Paper (AREA)
- Electrotherapy Devices (AREA)
Description
T. A. EDISON. TELEGRAPHIG TRANSMITTING INSTRUMENT. No. 114,656.
Patented Many 9, 1871.
lam/9. g JELOILA ttnittii sate THOMAS A. EDISON, or NEWARK, NEW JERSEY.
Letters Patent No. 114,656,dated May" 9, 1871.
IMPROVEMENT IN TELEGRAPHIC TRANSMITTING INSTRUMENTS.
The Schedule referred to in than Letters Patent and making part of the name.
' employed to make and break the electrical circuit in transmitting the message.
In transmitting instruments adapted to said paper there is a small disk or wire brush that closes the metallic circuit through the perforations, and the circuit is broken by the paper when the unperforated portion intervenes between the roller or plate and the disk or wire brush.
The transmission of pulsations of electricity being very rapid in this system of telegraphing, there is a difliculty that sometimes arises from the wire not clearing itself, and the pulsations are attenuated and do not distinctly reach the distant station.
My invention consists in arranging the connections and portions of the instrument in such a manner that a reverse current shall be thrown upon the wire of the circuit by a. motion delived from the thickness of the paper when the same is drawn in between the plate or roller and the brush or disk.
In the drawing the device in question is represented by a side view.
Let 0 represent a plate, roller, or metallic surface,
over which the strip of perforated paper 8 is drawn,
The battery is represented at c, and the groundwire at d, and the line-wire at f.
The current will therefore be sent, when the circuit is closed, through the perforation of the paper; and when the unperiorated portion of the paper is beneath the brush or stilns b the end is lifted suflicient- Iy to touch, or nearly so, the point 13, that is adjustable and mounted in any convenient manner.
By the said movement the battery kis broughtinto action .by closing the circuit between i) and b, and a reverse current is thrown upon the telegraph-line, thereby preventing the attenuation of the previous pulsation, clearing the wire, and causing the mark at the receiving-station to be clear and distinct.
I claim as my invention- A circuit-closer operated by the movement of the perforated paper in a telegraph transmitting instrument to throw a reverse circuit on the line, substantially as set forth.
Signed by me this 22d day of June, A. D. 1870.
THOMAS A. EDISON.
Witnesses:
CHAS. H. SMITH, Gno. T. PINGKNEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US114656A true US114656A (en) | 1871-05-09 |
Family
ID=2184118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US114656D Expired - Lifetime US114656A (en) | Improvement in telegraphic transmitting instruments |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US114656A (en) |
-
0
- US US114656D patent/US114656A/en not_active Expired - Lifetime
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