US147313A - Improvement in chemical telegraphs - Google Patents
Improvement in chemical telegraphs Download PDFInfo
- Publication number
- US147313A US147313A US147313DA US147313A US 147313 A US147313 A US 147313A US 147313D A US147313D A US 147313DA US 147313 A US147313 A US 147313A
- Authority
- US
- United States
- Prior art keywords
- improvement
- chemical
- circuit
- magnets
- helices
- 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
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000003068 static Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001737 promoting Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
- H04L15/24—Apparatus or circuits at the receiving end
- H04L15/28—Code reproducing apparatus
- H04L15/30—Writing recorders
Definitions
- a helix or lung- -net is employed in a shunt or derived circuit to neutralize the attenuations of the pulsations in the main circuit, and prevent the tailing upon the chemical paper.
- the object of the present invention is to adjust the counter or reacting force or the magnets or helices at the receiving station, and
- a is the transmitting-instrument, in which the strip of perforated paper is employed to make and break the circuit.
- 0 is the main' line; d, the main batter e e, the ground-connections.
- f is a branch circuit to the earth, in which the induction-coils or magnets g are in troduced, as in aforesaid patent.
- h are the induction-coils at the receiving station, and the action of the same corresponds'with that set forth in said patent. I, however, employ several electro-magnets or induction-coils, connected together through the contact-pins 2 2,
- the magnets h discharge themselves with more or less power, according to the number of said helices that are brought into the circuit; and this discharge, being in an opposite direction to the current of the battery, acts to clear the line of any surplus or static electricity, and prevent tailing.
- Either the positive or the negative of the transmitting"battery may be to the line, and
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Magnetic Treatment Devices (AREA)
Description
T. A. EDISON. Chemical"Te'leg'raphs. .N0.147,3I3. PatmdFeb'moAsm,
NEW YORK gig m: NORRIS Firms :0, PHoTo-u'ma, WASHINGTON. n. c,
UNITED STATES PATENT OFFIC THOMAS A. EDISON, or NEWARK, NEW JEnsEY, ASSIGNOR To HIMSELF AND oEoReE HARRINGTON, or WAsErNeToN, 11- e.
IMPROVEMENT IN CHEMICAL TELEGRAPHS.
Specification forming part of Letters Patent No. 147,313, dated February 10,1874; application filed July 29,1873.
To all whom it may concern:
Be it known that I, THOMAS A. EDrsoN, of Newark, in the county of Essex and State of New Jersey, have invented an Improvement in Chemical Telegraphs, of which the following is a specification:
In Letters Patent granted to me February 4, 1873, and numbered 135,531, a helix or lung- -net is employed in a shunt or derived circuit to neutralize the attenuations of the pulsations in the main circuit, and prevent the tailing upon the chemical paper.
The object of the present invention is to adjust the counter or reacting force or the magnets or helices at the receiving station, and
also to adjust the reacting forceof the magnets or helices at the transmitting stat-ion, so as to vary the action of the helices to suit the battery or the conditions of the pulsations at the transmitting and receiving stations.
In the annexed diagram, a, is the transmitting-instrument, in which the strip of perforated paper is employed to make and break the circuit. bis the receiving-instrument for the strip of chemical paper. 0 is the main' line; d, the main batter e e, the ground-connections. f is a branch circuit to the earth, in which the induction-coils or magnets g are in troduced, as in aforesaid patent. h are the induction-coils at the receiving station, and the action of the same corresponds'with that set forth in said patent. I, however, employ several electro-magnets or induction-coils, connected together through the contact-pins 2 2,
and these are arranged in the are of a circle,
CASE
m, and the elcctro-magncts or inductioncoils h, switch 7:, and contactpins 2 2, so that there may be more or less reactionary effect of the helices h.to cutofl' the tailings upon the main line, because, when the circuit is closed at the transmitting-instrument a, a large portion of the battery-power passes through-the shunt 5, switch 7;, coils l1, and rheost-at, and there is an accumulation of energy in the helices 71,. and as soon as the circuit through the instrument a is broken, the magnets h discharge themselves with more or less power, according to the number of said helices that are brought into the circuit; and this discharge, being in an opposite direction to the current of the battery, acts to clear the line of any surplus or static electricity, and prevent tailing.
It will be evident that the reactionary effect of the inductioncoil or magnets in the shuntcircuit at the transmitting stat-ion is to neutralize static electricity, or to bring the line to a normal electric condition instantly, thereby great] y promoting the rapidity of action.
Either the positive or the negative of the transmitting"battery may be to the line, and
tro-ma-gnets and a switelnk, to connect more.
or less oi'said magnets in a shunt-circuit, for the purposes set forth.
Signed by me this 23d day of April, A. D. 1873.
THOMAS A. EDISON. Witnesses:
Gate. 1. PrNcKNEY, GHAs. H. SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US147313A true US147313A (en) | 1874-02-10 |
Family
ID=2216727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US147313D Expired - Lifetime US147313A (en) | Improvement in chemical telegraphs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US147313A (en) |
-
0
- US US147313D patent/US147313A/en not_active Expired - Lifetime
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