US2129036A - Tilting apparatus - Google Patents

Tilting apparatus Download PDF

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Publication number
US2129036A
US2129036A US5895236A US2129036A US 2129036 A US2129036 A US 2129036A US 5895236 A US5895236 A US 5895236A US 2129036 A US2129036 A US 2129036A
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United States
Prior art keywords
grid
charging
condenser
potential
resistance
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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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Inventor
Schlesinger Kurt
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Loewe Opta GmbH
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Loewe Opta GmbH
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Filing date
Publication date
Priority to DE1931SC094248 priority Critical patent/DE693511C/en
Priority to DE1932R0085430 priority patent/DE701421C/en
Application filed by Loewe Opta GmbH filed Critical Loewe Opta GmbH
Application granted granted Critical
Publication of US2129036A publication Critical patent/US2129036A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K4/00Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K4/00Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/86Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements gas-filled tubes or spark-gaps

Description

Sept. 6, 1938. SCHLESlNGEfi 2,129,036
I TILTING APPARATUS Original Filed July 11, 1953 Jm'en/or:
Patented Sept. 6, 1938 PATENT GFFEQE TILTKNG APPARATUS Kurt Schlesinger, Berlin, Germany, assignor to Radicaktiengesellschait D. S. Loewe, Berlin- Steglitz, Germany Original application July 11, 1933, Serial No.
Patent No. 2,053,536, dated Septemher 8, 1936. Divided and this application January 13, 1936, Serial No. 58,952. In Germany July 15, 1932 1 Claim.
In the parent application Ser. No. 679,866, filed July 11, 1933, Patent #2,053,536 dated Sept. 8, 1936 of which the present case is a divisional application, I have described a method and an arrangement of producing relaxation oscillations making use of screening grid tubes furnished with an interception grid. The use of screening grid tubes enables charging tubes with saturated emission and tungsten cathodes otherwise unavoidable in connection with relaxation oscillation generators to be dispensed with.
Even if in the manner described the constancy of the charging current is ensured within a wide range of the anode potential, there is still to be observed with sufficient accuracy of measurement a delay in the ignition.
The present invention shows a method and an arrangement for producing relaxation oscillations which enable relaxation potentials to be obtained which are linearly ascending. I have found out that the disadvantage of the generators used up to now, with regard to non-linearity is due to the fact that the load of the consuming apparatus connected to the output of said generators causes distortion. This will be removed by the method according to the present invention.
The novel features, which I believe to be characteristic of my invention, are set forth with particularity in the appended claim. My invention, however, both as to its organization and method of operation together with further objects and advantages may be best understood by reference to the following description taken in connection with the accompanying drawing in which the figure represents an embodiment of my invention.
In the drawing l is a charging valve, the oath-- ode of which is indirectly heated, by a main current transformer 2. 6 is a condenser which is charged by the direct current potential source 3 through the medium of said valve. it is a glow discharge device for discharging said condenser, in case the charging potential of said condenser has reached the ignition potential of said glow discharge device. The charging valve may be furnished with a screen grid 4 and a further control grid determining the strength of charging current through said valve by suitably biassing said grid by means of the bias battery 5. The delayv in ignition above referred to is due to the fact that at the charging condenser 6 a load requires to be connected between the terminals 1, 8. This load is represented in the present instance by an ohmic resistance M. A
bias battery 9 is connected between one electrode of the discharge device and terminal 8, the bias of which is adjusted to the centre point of oscillation, so that the potential between "I and 8 oscillates to an equal extent into positive and negative. The load it in the discharge phase of the condenser then makes itself noticeable by acceleration of the discharge, because the terminal 8 is then more negative than the terminal I, and an auxiliary charging current accordingly flows over the resistance Hi, whilst the load near the ignition makes itself apparent in the form of an obstruction, because in this case a leakage current flows in the opposite direction from "i to 8.
Now it has been found very convenient, particularly for television purposes, to make use of methods, which permit of correction at will of these small remaining errors.
Certain methods of this kind are set forth in the following: The figure, for example, shows a correction at the grid of the charging tube I by the grid bias correcting resistance 15 according to the invention. The potential of the inner grid it of the screening grid charging tube l is biassed as compared with the cathode of the same tube to the extent of the drop in potential produced by the charging current through the tube l at the resistance l5. If now owing to excessive compensation of the potentials of anode and protective network, or secondary emis sion in the tube 1, etc., a decrease of this charging current takes place round about the ignition moment, the same simultaneously makes itself apparent by a reduction in the negative bias of the grid iii, as the charging current itself creates this bias at the resistance It. The grid becomes less negative, and a sinking of the anode current is thus compensated. The degree of compensation may be adjusted by the fact that, as shown, the resistance 65 may be varied.
I claim:
A generator for producing relaxation oscillations of saw tooth form with rectilinear rise com-- prising a direct current source, a condenser, an electronic valve for charging periodically said condenser with a constant current intensity having cathode, control grid, screening grid and anode and a discharge tube for discharging periodically said condenser, a second D. 0. potential source for biassing said control grid with respect to said cathode and a variable resistance, one electrode of said condenser being connected to the positive terminal of said source and to one electrode of said discharge tube, the other electrode of said condenser being connected to said anode and to the second electrode of said discharge tube, said cathode being connected over said resistance to the negative terminal of said source, said screening grid being connected to a tapping point of said source below said anode potential, one terminal of said second potential source being connected to the negative terminal of said first potential source, the other terminal of said second potential source being connected to said control grid.
KURT SCHLESINGER.
US5895236 1931-05-21 1936-01-13 Tilting apparatus Expired - Lifetime US2129036A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1931SC094248 DE693511C (en) 1931-05-21 1931-05-21 Arrangement for the generation of rectilinear rising or falling breakover voltages by charging a capacitor via a grid-controlled charging tube
DE1932R0085430 DE701421C (en) 1931-05-21 1932-07-16 Tilting device

Publications (1)

Publication Number Publication Date
US2129036A true US2129036A (en) 1938-09-06

Family

ID=32045519

Family Applications (3)

Application Number Title Priority Date Filing Date
US612676A Expired - Lifetime US2075140A (en) 1931-05-21 1932-05-21 Tilting oscillator and modulator
US679866A Expired - Lifetime US2053536A (en) 1931-05-21 1933-07-11 Tilting apparatus
US5895236 Expired - Lifetime US2129036A (en) 1931-05-21 1936-01-13 Tilting apparatus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US612676A Expired - Lifetime US2075140A (en) 1931-05-21 1932-05-21 Tilting oscillator and modulator
US679866A Expired - Lifetime US2053536A (en) 1931-05-21 1933-07-11 Tilting apparatus

Country Status (5)

Country Link
US (3) US2075140A (en)
DE (2) DE693511C (en)
FR (2) FR737988A (en)
GB (3) GB394476A (en)
NL (3) NL42659C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423620A (en) * 1943-10-29 1947-07-08 Baldwin Locomotive Works Condition responsive apparatus for rotatable members
US2489312A (en) * 1944-01-04 1949-11-29 Us Sec War Oscilloscope sweep circuit
US2497766A (en) * 1943-03-17 1950-02-14 Automatic Elect Lab Oscillation generator
US2522957A (en) * 1942-06-27 1950-09-19 Rca Corp Triangular signal generator
US2589477A (en) * 1946-03-28 1952-03-18 Rca Corp Oscillation generator system
US2602888A (en) * 1945-09-04 1952-07-08 Cutler Hammer Inc Electronic timer
US3219945A (en) * 1963-04-22 1965-11-23 Ampex Voltage controlled variable frequency relaxation oscillator
US3281717A (en) * 1961-06-23 1966-10-25 Royson Engineering Company Pulse generator having repetition rate linearly responsive to trigger signal amplitude

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441577A (en) * 1943-04-17 1948-05-18 Katzin Martin Automatic volume control means
US2428926A (en) * 1943-06-04 1947-10-14 Rca Corp Modified sweep circuit for cathoderay tubes
US2453203A (en) * 1943-06-19 1948-11-09 Ibm Variable frequency relaxation oscillator
US2426245A (en) * 1943-10-09 1947-08-26 Bell Telephone Labor Inc Time and distance measuring system
US2441246A (en) * 1943-11-02 1948-05-11 Rca Corp Modified sweep circuit
US2532503A (en) * 1944-04-24 1950-12-05 Joseph W Kennedy Electronic counting circuits
US2453787A (en) * 1944-05-23 1948-11-16 Jr George W Downs Saw-tooth voltage generator
US2576339A (en) * 1945-04-03 1951-11-27 John W Gray Variable rate sweep voltage generator
US2705901A (en) * 1946-01-15 1955-04-12 Chalmers W Sherwin Oscillographic integrator
US2540016A (en) * 1948-03-17 1951-01-30 Philco Corp Electrical system
US2523328A (en) * 1948-06-30 1950-09-26 Gen Electric Cathode-ray mapping system
US2734137A (en) * 1950-10-04 1956-02-07 patterson
US2735011A (en) * 1951-02-01 1956-02-14 Oscillating circuit
US2701850A (en) * 1951-02-02 1955-02-08 Philco Corp Automatic focus control for cathoderay tubes
US3241086A (en) * 1963-10-23 1966-03-15 Itt Wide-frequency-range sweep generator
US3532968A (en) * 1967-08-08 1970-10-06 Warwick Electronics Inc Visual battery condition indicator with relaxation oscillator and variable impedance means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522957A (en) * 1942-06-27 1950-09-19 Rca Corp Triangular signal generator
US2497766A (en) * 1943-03-17 1950-02-14 Automatic Elect Lab Oscillation generator
US2423620A (en) * 1943-10-29 1947-07-08 Baldwin Locomotive Works Condition responsive apparatus for rotatable members
US2489312A (en) * 1944-01-04 1949-11-29 Us Sec War Oscilloscope sweep circuit
US2602888A (en) * 1945-09-04 1952-07-08 Cutler Hammer Inc Electronic timer
US2589477A (en) * 1946-03-28 1952-03-18 Rca Corp Oscillation generator system
US3281717A (en) * 1961-06-23 1966-10-25 Royson Engineering Company Pulse generator having repetition rate linearly responsive to trigger signal amplitude
US3219945A (en) * 1963-04-22 1965-11-23 Ampex Voltage controlled variable frequency relaxation oscillator

Also Published As

Publication number Publication date
FR758478A (en) 1934-01-18
NL40391C (en) 1937-04-15
NL42659C (en) 1938-03-15
US2053536A (en) 1936-09-08
US2075140A (en) 1937-03-30
NL65992B (en)
GB427168A (en) 1935-04-15
DE701421C (en) 1941-01-16
FR737988A (en) 1932-12-17
DE693511C (en) 1940-07-12
GB394476A (en) 1933-06-29
GB424490A (en) 1935-02-14

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