US2265394A - Push-button arrangement - Google Patents

Push-button arrangement Download PDF

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Publication number
US2265394A
US2265394A US335313A US33531340A US2265394A US 2265394 A US2265394 A US 2265394A US 335313 A US335313 A US 335313A US 33531340 A US33531340 A US 33531340A US 2265394 A US2265394 A US 2265394A
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United States
Prior art keywords
push
switch
push buttons
push button
tuning
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
US335313A
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English (en)
Inventor
Ranly Wilhelm
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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Application granted granted Critical
Publication of US2265394A publication Critical patent/US2265394A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/04—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings

Definitions

  • the novelty relates to an arrangement serving for setting the tuning organs of electric communication apparatus or similar apparatus with the ⁇ use of push buttons acting upon the movable setting organs in a preferably mechanical fashion.
  • the drawback isoften encountered that at choosing a transmitter a frequency band is traversed which' contains individual stations which become audible during this operation.
  • a switch is provided which serves for the partial or complete shutting down of the apparatus during the actuation of the push' buttons. In this way the apparatus operates only after the setting to the desired position has been completed. This is realized in that during the operating movement of the push buttons from one end position to the other one the switch will be closed or opened by the push buttons.
  • the switch' which serves for shutting down the apparatus partially, or completely may eiTect for instance an additional negative grid biasing potential in a tube stage of the apparatus which potential is so high that it causes a blocking of the tube.
  • the loudspeaker may also be shut oi and in like manner also other circuit elements of the apparatus may be affected.
  • the control grid of a tube preferably of the end tube may be connected to the cathode which has the effect that amplification occurs no longer.
  • Figure 1 illustrates a portion of a push button tuning instrumentality incorporating the features oi the present invention
  • Figure 2 illustrates a circuit diagram showing how the switch may be associated with a signalling circuit.
  • FIG. 1 An example of construction according to the novel feature is shown in the drawing.
  • Fig. 1 two push buttons of a push button arrangement are schematically shown in a perspective view.
  • the push buttons A and B are hereby equipped with plate-shaped parts I and 2. These parts press against the stop bolts 3 and 4 of a rocker 25.
  • Th'e rocker 25 is mounted on a shaft which may at the same time carry tuning means, or which may be connected through any sort of intermediate organs with the shaft carrying the tuning means.
  • the rocker may have for example an angle range of 90 degrees.
  • the push buttons are connected to guide rods 'I and 8. These guide rods have notches at 9 and It in which a part 22 can engage for establishing positions of resting. The resting position of the buttons is assured by springs II and 26.
  • the guide rods may be provided with projections I2 and I3 which actuate the switch S directly or across intermediate organs. In the example of construction shown the actuation of the switch is carried out by means of a part I5 rotatable about the shaft I4 and which is lifted by the projections I2 or I3. The effect is that across the intermediate member I 6 the upper contact spring I'I of the switch S is lifted from the lower contact spring I8 so that the contacts I9 and 20 are separated from eachI other.
  • FIG. 2 shows a tube stage of the apparatus in the circuit diagram.
  • the grid leak resistance 23 of a tube 24 has placed in parallel thereto the switch S which serves for short circuiting the control grid and the cath'ode.
  • This switch corresponds with the switch S shown in Fig. 1 except that in their positions of rest the switch contacts are opened, while at operation of the push buttons the switch closes.
  • tunable radio receiving apparatus provided with a plurality of selectively operable push buttons each' acting upon displacement from a position of rest to a fully depressed position to tune the receiver to a predetermined frequency, and with means for latching any operated push button in a depressed position until a subsequent operation of another push button in which case the previously operated push button is released 2L Y v 2,265,394
  • an adjustable tuning element a plurality of selectively operable means acting upon selective operation thereof to effect the movement of said element to respectively diferent positions, each of Vsaid selectively i operable means being arranged to be displaced from a position of rest to a tuning position, means for latching any displaced one of said selectively operable means in a displaced position until the subsequent displacement of another one thereof,
  • each of said selectively operable means including means to maintain said muting switch effective to mute the receiver during the time the push' button is being displaced from its p0- sition of rest up to the'position where it is latched whereby the muting means becomes ineiective while said push button is in its depressed posi- Ation.
  • a tuning instrumentality for a radio rel DCver a plurality of station selector push buttons 'effective from a time commencing with the start of movement of one of said push buttons from its released position until just prior to the time When the actuated'push button reaches its tuning position.
  • tunable signalling apparatus of the type provided with a plurality of selectively operable push button devices each acting upon operation to tune th'e receiver to a predetermined frequency, means for holding any operated push button in a depressed position until the subsequent operation of another one of the push buttons, muting 'means' for the receiver and means associated rwith each of said push buttons for rendering the muting means effective upon depression of any 'one of said push buttons from the start of movement of the push button until just prior to said pushbuttons reachingthe position at whichv it is latched by said holding means.

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  • Push-Button Switches (AREA)
US335313A 1939-02-01 1940-05-15 Push-button arrangement Expired - Lifetime US2265394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE213154X 1939-02-01

Publications (1)

Publication Number Publication Date
US2265394A true US2265394A (en) 1941-12-09

Family

ID=5811756

Family Applications (1)

Application Number Title Priority Date Filing Date
US335313A Expired - Lifetime US2265394A (en) 1939-02-01 1940-05-15 Push-button arrangement

Country Status (2)

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US (1) US2265394A (de)
CH (1) CH213154A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513353A (en) * 1944-06-14 1950-07-04 Freeman H Owens Mechanism for adjusting and setting radios or other apparatus
US2520732A (en) * 1945-09-26 1950-08-29 Jr Eugene F Mcdonald Sound amplifier muting means
US2546401A (en) * 1947-04-24 1951-03-27 Sylvania Electric Prod Muting system for radio receivers
US2547903A (en) * 1947-04-03 1951-04-03 Eugene J Venaglia Audio automatic volume control system
US2809288A (en) * 1954-04-23 1957-10-08 Gilbert William Edwin Tuning indicator for wave signal receiver using beat frequency oscillation injection into second detector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1178125B (de) * 1955-11-19 1964-09-17 Blaupunkt Werke Gmbh Rundfunkempfaenger fuer Fahrzeuge mit automatischer Senderwahl
DE1203328B (de) * 1962-02-03 1965-10-21 Telefunken Patent Hochfrequenzempfaenger mit automatischer Scharfabstimmung und einem Drucktastensatz zur Auswahl verschiedener Sender
DE1278568B (de) * 1963-08-16 1968-09-26 Telefunken Patent Drucktastensatz fuer die Abstimmeinrichtung eines Hochfrequenz-Empfaengers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513353A (en) * 1944-06-14 1950-07-04 Freeman H Owens Mechanism for adjusting and setting radios or other apparatus
US2520732A (en) * 1945-09-26 1950-08-29 Jr Eugene F Mcdonald Sound amplifier muting means
US2547903A (en) * 1947-04-03 1951-04-03 Eugene J Venaglia Audio automatic volume control system
US2546401A (en) * 1947-04-24 1951-03-27 Sylvania Electric Prod Muting system for radio receivers
US2809288A (en) * 1954-04-23 1957-10-08 Gilbert William Edwin Tuning indicator for wave signal receiver using beat frequency oscillation injection into second detector

Also Published As

Publication number Publication date
CH213154A (de) 1941-01-15

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