US1907279A - Electrical timing arrangement - Google Patents

Electrical timing arrangement Download PDF

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Publication number
US1907279A
US1907279A US443198A US44319830A US1907279A US 1907279 A US1907279 A US 1907279A US 443198 A US443198 A US 443198A US 44319830 A US44319830 A US 44319830A US 1907279 A US1907279 A US 1907279A
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US
United States
Prior art keywords
voltage
condenser
timing
current source
over
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
US443198A
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English (en)
Inventor
Blomberg Knut Hugo
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
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Publication of US1907279A publication Critical patent/US1907279A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/288—Modifications for introducing a time delay before switching in tube switches

Definitions

  • the present invention relates to electrical timing devices such as time relays,- time switches etc. More especially, the invention relatesto such devices in which the timing member is constituted by a condenser in combination with a high charging resistance and a discharge device having a fixed lighting voltage, by wa of example a glow lamp or a. glow tube. gaid elements may, by way of 0 example, be mutually so connected that, upon operation, the condenser is charged over the resistance so that after a predetermined period the condenser voltage has attained the lighting voltage of the discharge device.
  • the condenser then discharges over the discharge device whereby a current impulse is obtained that may actuate the device to be time controlled.
  • timing arrangements afl'ord great advantages by their lack of movable parts, their recision. and their adaptability to be adjusted for diflerent lengths of time, fromfractions of a second up to several hours, but their application has hitherto been restricted to such cases when the available operating voltage has exceeded the lighting voltage of the discharge device.
  • Existing types of glow lamps and glow tubes generally preferred and used for said purpose arenot at resent manufactured for lower voltages than 0 to 80 volts and, on account of the nature of the glow I dischar e phenomenon, a further reduction in the ligfiting voltage appears impracticable. It has thus not been possible to make use of said timing arrangements at the voltages usually occurring 1n the communication art, i. e. 24 to volts.
  • this is brought about by that, during the charging of the condenser over the charging resistance, one or to the operating voltage are series connected to the former condenser so that the condenser voltages during'the charging-are added together whereby the; lightingavoltage of the discharge, device may be attalned by means of a lower operating voltage.
  • Figure -1 is a circuit diagram for a time relay in, which the operating voltage is less than the lighting voltageof the glow lamp but higher than one halfthereof.
  • G denotes the glow lamp or glow tube, C1 and C are two.
  • condenser C is connected to the current source E, i.e. it is standing by, charged to said potential, which is lower than the lighting voltage of the lam G. Over the contact 2 the condenser O is s ort-circuited over the resistance 1-
  • the normally closed contacts 1 and 2. are opened by the relay armature and. the normally open contacts 3 closed.
  • the short-circuit of thecondenser G is thus removed and more other condensers previously charged 0 is instead connected to the current source E over thehigh charging resistance r and the charging of the condenser starts.
  • the condenserC is disconnected at the same time from the current source but its voltage ,decreases very slowly on account of the high insulating resistance of the condenser.
  • the relay R is ener ed so long as the When the relay R is de-energized the holding-circuit of B is in-- terrupted so that said relay also becomes Ideenergized. At the same time, C is short-' circuited over 1', over the contact 2- and connects C to the current source over the contacts 1 and 2. The circuit arrangement is thus restored to the starting condition.
  • Figure 2 shows a corresponding circuit arrangeme'nt for the case that the voltage E is less than about one half but higher than one third of the lightin voltage of thelam G.
  • rangement may then be carried out in sucha manner that the condensers C and O in inoperative position, do not stand by in continuouslyfcharged condition but, upon' the relay R operatin for a short moment, by way of example t rough an auxiliary relay,
  • a switch adapted, in normal position, to connect the current source in parallel with the auxiliary condensers while separating the timing condenser from the current source and, in timing position, to connect the current source to the timing condenser throu h the timing resistance while separating t e auxiliary condensers from the current source.
  • An electrical timin arrangement as claimed in claim 1 in w ich the switch is adapted, in normal position, to short-circuit the timing condenser.
  • An electrical timing arrangement comprising a timing condenser and an auxiliary 'condenser, connected in series with one another and with a discharge device, a charging current source having a lower voltage than the lighting voltage of the discharge w device, a timing resistance, and a switch adapted, in normal position, to connect the current source in parallel with the auxiliary condenser while separating the timing condenser from. the current source and, in timing position, to connect the current source to the timing condenser through the timing resistance while separating the auxiliary condenser from the current source.
  • An electrical timin arrangement as claimed'in claim 4 in WhlCh the timin con denser has a capacity difi'ering from t at of the auxiliary, condenser.
  • An electrical timin arrangement as claimed in claim 4 in wfiich the switch is adapted, in normal position, to short circuit the timing condenser.

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  • Circuit Arrangements For Discharge Lamps (AREA)
  • Electron Sources, Ion Sources (AREA)
US443198A 1929-04-15 1930-04-10 Electrical timing arrangement Expired - Lifetime US1907279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE341801X 1929-04-15

Publications (1)

Publication Number Publication Date
US1907279A true US1907279A (en) 1933-05-02

Family

ID=20308397

Family Applications (1)

Application Number Title Priority Date Filing Date
US443198A Expired - Lifetime US1907279A (en) 1929-04-15 1930-04-10 Electrical timing arrangement

Country Status (4)

Country Link
US (1) US1907279A (de)
DE (1) DE516692C (de)
FR (1) FR693874A (de)
GB (1) GB341801A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428488A (en) * 1945-01-08 1947-10-07 Automatic Elect Lab Impulse testing apparatus
US2442304A (en) * 1944-01-17 1948-05-25 Farnsworth Res Corp Pulse keying circuit
US2453486A (en) * 1945-01-01 1948-11-09 Picker X Ray Corp Waite Mfg Electronic timer
US2545474A (en) * 1943-08-12 1951-03-20 Jerome J Kurland Delayed detonating means for projectiles
US2593964A (en) * 1950-05-20 1952-04-22 Westinghouse Electric Corp Electronic timer
US2756818A (en) * 1952-03-06 1956-07-31 Anthony F Borowski Sequence controller
US2765402A (en) * 1952-09-25 1956-10-02 Gen Electric Electric timer
US2831111A (en) * 1955-06-28 1958-04-15 Gen Electric Electric timer
US2895082A (en) * 1955-05-10 1959-07-14 Suyetani Shigemitsu Cyclic circuit interrupter means for low voltage flasher lamp devices
US2920193A (en) * 1956-05-07 1960-01-05 Breckman Jack Precise analogue store and impedance transformer
US2985837A (en) * 1953-07-02 1961-05-23 Herbert E Ruehlemann Stabilized time fuze circuit
US3054352A (en) * 1959-01-22 1962-09-18 Jr Rene Perdreaux Artillery fuze
US3124701A (en) * 1964-03-10 Richard l

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765916C (de) * 1938-12-06 1953-12-07 Siemens & Halske A G Schaltungsanordnung fuer Fernsprechanlagen zur Einleitung und Aufhebung von Rueckfrageumschaltungen
DE753883C (de) * 1939-04-15 1953-01-26 Aeg Vorrichtung zur Erzeugung von Spannungsstoessen zum Aufladen elektrischer Weidezaeune
DE910320C (de) * 1939-12-15 1954-04-29 Julius Pintsch K G Schaltanordnung fuer Relais
BE495436A (de) * 1949-09-29

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124701A (en) * 1964-03-10 Richard l
US2545474A (en) * 1943-08-12 1951-03-20 Jerome J Kurland Delayed detonating means for projectiles
US2442304A (en) * 1944-01-17 1948-05-25 Farnsworth Res Corp Pulse keying circuit
US2453486A (en) * 1945-01-01 1948-11-09 Picker X Ray Corp Waite Mfg Electronic timer
US2428488A (en) * 1945-01-08 1947-10-07 Automatic Elect Lab Impulse testing apparatus
US2593964A (en) * 1950-05-20 1952-04-22 Westinghouse Electric Corp Electronic timer
US2756818A (en) * 1952-03-06 1956-07-31 Anthony F Borowski Sequence controller
US2765402A (en) * 1952-09-25 1956-10-02 Gen Electric Electric timer
US2985837A (en) * 1953-07-02 1961-05-23 Herbert E Ruehlemann Stabilized time fuze circuit
US2895082A (en) * 1955-05-10 1959-07-14 Suyetani Shigemitsu Cyclic circuit interrupter means for low voltage flasher lamp devices
US2831111A (en) * 1955-06-28 1958-04-15 Gen Electric Electric timer
US2920193A (en) * 1956-05-07 1960-01-05 Breckman Jack Precise analogue store and impedance transformer
US3054352A (en) * 1959-01-22 1962-09-18 Jr Rene Perdreaux Artillery fuze

Also Published As

Publication number Publication date
GB341801A (en) 1931-01-22
DE516692C (de) 1931-01-26
FR693874A (fr) 1930-11-26

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