US1512361A - Method for synchronizing apparatus on a long distance - Google Patents

Method for synchronizing apparatus on a long distance Download PDF

Info

Publication number
US1512361A
US1512361A US389925A US38992520A US1512361A US 1512361 A US1512361 A US 1512361A US 389925 A US389925 A US 389925A US 38992520 A US38992520 A US 38992520A US 1512361 A US1512361 A US 1512361A
Authority
US
United States
Prior art keywords
alternating current
current
station
long distance
line
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
US389925A
Inventor
Petersen Hermod Magne
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 US389925A priority Critical patent/US1512361A/en
Application granted granted Critical
Publication of US1512361A publication Critical patent/US1512361A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/36—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device for synchronising or phasing transmitter and receiver

Definitions

  • the present invention relates to the synchronizing of apparatuses which are removed a long distance from each other, and which can not be driven directly from the same source of power such as for instance telegraphs and the like apparatuses interconnected by means of a low current electric transmission or apparatus located at wireless plants communicating with each other by means of electromagnetic waves.
  • one of the apparatuses to be synchronized is driven by means of alternating current, said alternating current influencing also a vacuum tube placed in proximity to the other apparatus and serving to generate an alternating current synchronous with the original alternating current thereby driving the other apparatus.
  • 1' is an alternating current generator delivering alternating current with a frequency of for instance 1000.
  • the generator is coupled to the primary winding 2 of a transformer 2, 3.
  • 4 is a rotating cylinder on the surface of which the matter to be transmitted has been copied chemigraphically.
  • the lines consist of insulating substance.
  • 5 is a contact spring which is 0 moved axially during the rotation of the cylinder by means of a screw. From the alternating current circuit 1, 2 transmission wires 6, 7 lead to the cylinder, so that the alternating current generator is short-circuited over these wires, when the spring is touching the metal of the cylinder, while the short-ci"r cuiting is interrupted Whenthe spring passes "the full power of the alternating current is transmitted to the line.
  • an alternating current generator 24 vproducin alternating current of say 50 periods.
  • e generator produces the necessary current for driving a synchronous motor 26 controlled by means of'resistance 25 and driving cylinder 4 by means of worm gear 27.
  • the generator 24 sends alternating current to point 28 of the secondary
  • the energy arriving at the receiving current is here distributed between the real line 15 and the artificial line 16, 17 and is taken up at point 29 at the receiving station passing from there throiIigh the primary 31 of transformer 30, 31.
  • the Weak current arriving is amplified by means of the 3-electrode vacuum tube 32 in the same manner as previously specified for vacuum tube 8 and the amplified current is utilized to drive the synchronous motor 33 driving the receiving cylinder 23 in synchronism with the cylinder 4.
  • a sending and a receiving station In the synchronism of distant motors for copying telegraphs, a sending and a receiving station, a line connecting them, a motor at each station, an alternator at the sending station supplying current to the motor at said station and sending current to line, an amplifying circuit at the receiving station, a transformer between the line and said circuit, an audion tube and abattery in said circuit and a second transformer supplying current'to the motor at the receiving station.
  • a sending and a receiving station In the synchronism of distant motors for copying telegraphs, a sending and a receiving station, a llne connecting them, an alternating current motor at each station, a source of alternating current at the sending station supplying current to the motor at said station and sending alternating current to line, an amplifying circuit at the receiving station, transforming means between the line and said circuit, an audion tube and a source of continuous current in said circuit, and means to transform current of said amplifying circuit and supply such transformed current to the motor at the receiving station.

Description

Oct. 21,1924. 1,512,361
H. M. PETERSEN METHOD SYNCHHONIZING APPARATUS ON A LONG DISTANCE Filed June 18. 1920 Patented Oct. 21, 1924. v
UNITED STATES HEBMOD MAGN E PETERSEN, O'F CHR ISTIANIA, NORWAY.
METHOD FOR SYNQHRONIZING APPARATUS ON A LONG DISTANCE.
Application filed June 18, 1920 Serial No. 389,925.
enable others skilled in the art to which'it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.
The present invention relates to the synchronizing of apparatuses which are removed a long distance from each other, and which can not be driven directly from the same source of power such as for instance telegraphs and the like apparatuses interconnected by means of a low current electric transmission or apparatus located at wireless plants communicating with each other by means of electromagnetic waves.
According to the present invention one of the apparatuses to be synchronized is driven by means of alternating current, said alternating current influencing also a vacuum tube placed in proximity to the other apparatus and serving to generate an alternating current synchronous with the original alternating current thereby driving the other apparatus.
In order to make the invention more clearly understood the application of the same on asystem for telegraphic transmission of ictures or the like (copy-telegraphing) 'wil be described inthe following with reference to the accompanying drawing:
1' is an alternating current generator delivering alternating current with a frequency of for instance 1000. The generator is coupled to the primary winding 2 of a transformer 2, 3. 4 is a rotating cylinder on the surface of which the matter to be transmitted has been copied chemigraphically. The lines consist of insulating substance. 5 is a contact spring which is 0 moved axially during the rotation of the cylinder by means of a screw. From the alternating current circuit 1, 2 transmission wires 6, 7 lead to the cylinder, so that the alternating current generator is short-circuited over these wires, when the spring is touching the metal of the cylinder, while the short-ci"r cuiting is interrupted Whenthe spring passes "the full power of the alternating current is transmitted to the line. Experience now shows that sparks are produced by the contact spring 5, said s arks acting to make the picture unclear. 11 order to obviate this drawback a 3-electrode Vacuum tube 8 with screen 9, filament 10 and anode 11 is introduced between the line and transformer 2, 3, said vacuum tube is adapted for amplifying alternating currents with suitable frequency and for increasing the energy for instance from 1 watt to 150 watts or more. Thereby an energy of about 1 watt only is-passed overthe cylinder 4 so that the arrangement may work without sparks at the usual velocity of rotation. When the spring passes an insulating line approximately 1 watt is transmitted to the screen circuit 9, 3, 10 of the vacuum tube, and the vacuum tube increases this energy by means of battery 12 to 150 watts while maintaining the frequency, and form of the alternating current. Through transformer 13, 14 the amplified energy is transmitted to te1egraph line 15, which is provided with regard to the synchronizing arrangement with the usual artificial lines 1617 and 1819. By means of transformer 13, 14 the one is transformed into a current the transmis- Tion of which is suitable for. the telegraph me. station is transformed by means of transformer 20-21 to a tension suitable for producing sparksor the like in a receiving ap aratus 22 placed before the receiving cy 1nder 23. Said receiving apparatus however is no part of the present invention, which relates to the problem of synchronizing the rotation of said cylinder 23 with the rotation of cylinder 4.
At the sending station is placed an alternating current generator 24 vproducin alternating current of say 50 periods. e generator produces the necessary current for driving a synchronous motor 26 controlled by means of'resistance 25 and driving cylinder 4 by means of worm gear 27. At the same time, the generator 24 sends alternating current to point 28 of the secondary The energy arriving at the receiving current is here distributed between the real line 15 and the artificial line 16, 17 and is taken up at point 29 at the receiving station passing from there throiIigh the primary 31 of transformer 30, 31. ere the Weak current arriving is amplified by means of the 3-electrode vacuum tube 32 in the same manner as previously specified for vacuum tube 8 and the amplified current is utilized to drive the synchronous motor 33 driving the receiving cylinder 23 in synchronism with the cylinder 4.
Claims:
1. In the synchronism of distant motors for copying telegraphs, a sending and a receiving station, a line connecting them, a motor at each station, an alternator at the sending station supplying current to the motor at said station and sending current to line, an amplifying circuit at the receiving station, a transformer between the line and said circuit, an audion tube and abattery in said circuit and a second transformer supplying current'to the motor at the receiving station.
2. In the synchronism of distant motors for copying telegraphs, a sending and a receiving station, a llne connecting them, an alternating current motor at each station, a source of alternating current at the sending station supplying current to the motor at said station and sending alternating current to line, an amplifying circuit at the receiving station, transforming means between the line and said circuit, an audion tube and a source of continuous current in said circuit, and means to transform current of said amplifying circuit and supply such transformed current to the motor at the receiving station.
In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribi'n witnesses.
HERMOD MAGNE ETERSEN.
Witnesses:
Roam H. FnAzmn, NATE A. QHED'EUSOHON.
US389925A 1920-06-18 1920-06-18 Method for synchronizing apparatus on a long distance Expired - Lifetime US1512361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US389925A US1512361A (en) 1920-06-18 1920-06-18 Method for synchronizing apparatus on a long distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389925A US1512361A (en) 1920-06-18 1920-06-18 Method for synchronizing apparatus on a long distance

Publications (1)

Publication Number Publication Date
US1512361A true US1512361A (en) 1924-10-21

Family

ID=23540333

Family Applications (1)

Application Number Title Priority Date Filing Date
US389925A Expired - Lifetime US1512361A (en) 1920-06-18 1920-06-18 Method for synchronizing apparatus on a long distance

Country Status (1)

Country Link
US (1) US1512361A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429608A (en) * 1942-03-12 1947-10-28 Int Standard Electric Corp Multichannel pulse communication system
US2451734A (en) * 1922-01-26 1948-10-19 Hopkins Edwin Method of and means for the transmission and reproduction of optical and acoustical effects

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451734A (en) * 1922-01-26 1948-10-19 Hopkins Edwin Method of and means for the transmission and reproduction of optical and acoustical effects
US2429608A (en) * 1942-03-12 1947-10-28 Int Standard Electric Corp Multichannel pulse communication system

Similar Documents

Publication Publication Date Title
US1512361A (en) Method for synchronizing apparatus on a long distance
US1753331A (en) Constant-speed drive
GB451645A (en) Means and method for modulating high frequency currents
US1530666A (en) Multiplex system for the transmission of radiant energy
US2126265A (en) Phasing and synchronizing of signaling apparatus
US899629A (en) Converter.
US1655038A (en) Power-factor control system
US1521205A (en) Synchronizing rotating bodies
US1763909A (en) Speed regulator
US1445929A (en) Electrical apparatus
US1563727A (en) Isochronizing and synchronizing system
US1708642A (en) Synchronizing device
US1537055A (en) System of distribution
US1610425A (en) Transmission system for radiant energy
GB168650A (en) Method of and means for electrically synchronizing apparatus over a long distance
US1340963A (en) Resonant converter
AT90641B (en) Method of synchronizing equipment over long distances.
US1042069A (en) Method of and apparatus for relaying high-frequency currents.
US717770A (en) Wireless signaling system.
US2023255A (en) Electric valve operated motor
US2292783A (en) Rotary regenerative repeater
US2281596A (en) Telegraphic transmission by space discharge control
CH94778A (en) Method for synchronizing devices over long distances.
US1991082A (en) Television apparatus
US1999377A (en) Speed and position regulating