US2456949A - Control device indicator - Google Patents

Control device indicator Download PDF

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Publication number
US2456949A
US2456949A US776884A US77688447A US2456949A US 2456949 A US2456949 A US 2456949A US 776884 A US776884 A US 776884A US 77688447 A US77688447 A US 77688447A US 2456949 A US2456949 A US 2456949A
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US
United States
Prior art keywords
knob
control
shafts
dial
shaft
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
US776884A
Inventor
Donald B Keim
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General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US776884A priority Critical patent/US2456949A/en
Application granted granted Critical
Publication of US2456949A publication Critical patent/US2456949A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • G05G1/12—Means for securing the members on rotatable spindles or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • G05G1/105—Details, e.g. of discs, knobs, wheels or handles comprising arrangements for illumination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/165—Indicators for switching condition, e.g. "on" or "off" comprising numbered dials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/31—TV channel selector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20732—Handles
    • Y10T74/20834—Hand wheels
    • Y10T74/2084—Knob or dial

Definitions

  • My invention relates to control device indicators, and more particularly, to an indicator for a channel selector switch, band switch, or similar control device of the type commonly used on radio and television receivers and the like. It is a primary object of my invention to provide an improved arrangement of this type which facilitates proper adjustment of the control device.
  • a channel selector switch on a television receiver for example, it is customary to employ a rotary type switch, the operating shaft of which is enclosed concentrically in a tubular shaft which actuates the oscillator trimmer.
  • a rotary type switch the operating shaft of which is enclosed concentrically in a tubular shaft which actuates the oscillator trimmer.
  • the inner knob is customarilyattached to the tubular shaft, or oscillator trimmer control, while the outer knob is conventionally attached to the inner shaft, or channel selector switch control.
  • FIG. 1 is a view in transverse section of a dual knob arrangement suitably embodying my invention
  • Fig. 2 is a front View of the assembly of Fig. l
  • Fig. 3 is a cross-sectional View of another embodiment of my invention
  • Fig. 4 is a front view of the assembly of Fig. 3.
  • Like reference numerals signify similar elements in the several figures.
  • FIG. l and 2 have shown my invention cornprising an inner control knob l and an outer control knob 2, mounted coaxially and independently on two concentric operating shafts 3, l in a manner well known in the art.
  • Control knob i is of the conventional round type, and is attached to the outer, tubular shaft 3, which may, for example, control the oscillator trimmer of a television receiver.
  • the inner knob l is composed of wood, plastic, or other suitable insulating material and is substantially circular in shape.
  • the outer periphery of control knob l may be ridged or knurled for ease of operation.
  • An axial hole 5 is provided with means for attaching the knob l to the tubular shaft 3, such means as shown (Cl.
  • 11G-i242 taking the form of a pair of oppositely disposed keys 6 on the inside of the axial hole 5 and corresponding keyways in the tubular shaft 3.
  • the tubular shaft 3 is slightly spread to provide rm frictional engagement.
  • the inner knob l may be provided with a centrally located indentation or socket portion l, the purpose of which is to provide ready access of the outer knob 2 to the solid shaft li, and to provide compactness of assembly.
  • Control knob 2 is of the bartyDe with certain adaptations, and is attached to the inner, solid shaft l, which may control the channel selector switch.
  • the outer knob 2 is composed of suitable ornamental material, and is provided with a substantially bar-shaped rectangular head portion 8 and a protruding base portion 9 which extends axially into the recess l of control knob l.
  • I also provide control knob 2 with an extension or dependingl portion lil extending substantially parallel with the shafts 3, 6l, and of such dimensions as to permit the assembly of an indicating dial il so that the latter will clear both the front panel l2 of the cabinet and the inner knob i.
  • the outer knob-and-dial assembly is tted to the inner shaft i by means similar to those employed for fitting the inner knob i to the tubular shaft (i.
  • the front panel l2 of the cabinet is provided with a pilot light i3, or some similar suitable reference device.
  • a circular metal indicating dial li is provided, suitably engraved with indicia M so that, for each position of the channel selector switch, a distinguishing marking is brought into alignment with the pilot light i3.
  • the indicating dial il is assembled to the outer knob 2 by a screw l5, or other similar device, which extends through a clearance hole it in the indicating dial il into a threaded hole il in the extension lll of control knob 2.
  • the dial ll completely surrounds the inner knob i without touching it, and there is a small clearance between the indicating dial ll and the front panel l2 of the cabinet.
  • the indicating dial il is caused to rotate as an integral part of the outer knob 2, and the operating channel is indicated by the marking l@ on the indicating dial i l which is in alignment with the pilot light i3.
  • Figs. 3 and 4 show a similar assembly wherein the inner knob l is assumed to operate a band switch.
  • the outer knob 2 is provided with an indicating dial ii, as before.
  • the inner knob l is also provided with an indicating dial I8 comprising suitable indicia i9 to identify the position of the band switch when in alignment with the pilot light I3.
  • both switches may be rapidb' adjusted by bringing the proper markings into alignment with the pilot light.
  • a control knob arrangement for a pair of coaxial shafts comprising a first knob adapted to engage the outer of said shafts, said first knob having a hole extending longitudinally thereof, the inner of said shafts extending through said hole, a second knob being attached to said inner shaft, said second knob having a depending portion extending substantially parallel with said second shaft and spaced from said second shaft by a distance greater than the radius of said iirst knob, and an annular dial attached to said depending portion, said dial having a central aperture having a diameter greater than the diameter of said first knob, and said dial having indicia thereon for indicating the position of said second knob.
  • a control knob arrangement for a pair of coaxial shafts the outer of said shafts having mounted therein a circular knob having a longisaid shafts projecting into said socket portion,
  • a second knob having a rectangular head portion and a rounded base portion adapted to extend into said socket portion, said second knob having a longitudinally extending arm connected to one end of said head portion, said second knob having a longitudinally extending recess adapted to engage the inner of said shafts, said longitudinally extending arm being displaced from said recess by a distance greater than the radius of said rst knob, an annular disk attached to said longitudinally extending arm at its end remote from said rectangular head portion, said disk having an aperture of diameter greater than the diameter of said flrst knob and arranged to encircle said rst knob, said disk having indicia marked thereon, and means displaced from said shafts for indicating the position to which said inner shaft is adjusted, said last meansv comprising a panel having an aperture through which said shafts project and indicia marked on said panel.

Description

Dec. 21, "1948. D. B. KEIM 2,456,949
:CONTROL 'DEVICE 'INDICATOR Filed sept. so, 1947 lzrwvert @1^ z 'Donald B. Keim,
5M "His Attorney Patented Dec.. 21, 1948 CONTRL DEVICE INDECATOR York Application September 30, i947, Serial No. 776,884
2 Claims. i
My invention relates to control device indicators, and more particularly, to an indicator for a channel selector switch, band switch, or similar control device of the type commonly used on radio and television receivers and the like. It is a primary object of my invention to provide an improved arrangement of this type which facilitates proper adjustment of the control device.
In the case of a channel selector switch on a television receiver, for example, it is customary to employ a rotary type switch, the operating shaft of which is enclosed concentrically in a tubular shaft which actuates the oscillator trimmer. Such an arrangement requires the use of dual coaxial knobs in order to allow independent Operation of the two controls. The inner knob is customarilyattached to the tubular shaft, or oscillator trimmer control, while the outer knob is conventionally attached to the inner shaft, or channel selector switch control.
It is a particular object of my invention to provide a compact, economical indicating device, to be used in conjunction with the outer knob, which facilitates rapid selection of the desired frequency channel of operation.
The features of my invention which 1 believe to be novel are set forth with particularity in the appended claims. My invention itself, however, together with further objects and advantages thereof, may best be understood byrreference to the followingl description taken in connection with the accompanying drawing, in which Fig. 1 is a view in transverse section of a dual knob arrangement suitably embodying my invention; Fig. 2 is a front View of the assembly of Fig. l; Fig. 3 is a cross-sectional View of another embodiment of my invention; and Fig. 4 is a front view of the assembly of Fig. 3. Like reference numerals signify similar elements in the several figures.
In the accompanying drawing, referring to Figs. l and 2, have shown my invention cornprising an inner control knob l and an outer control knob 2, mounted coaxially and independently on two concentric operating shafts 3, l in a manner well known in the art. Control knob i is of the conventional round type, and is attached to the outer, tubular shaft 3, which may, for example, control the oscillator trimmer of a television receiver. The inner knob l is composed of wood, plastic, or other suitable insulating material and is substantially circular in shape. The outer periphery of control knob l may be ridged or knurled for ease of operation. An axial hole 5 is provided with means for attaching the knob l to the tubular shaft 3, such means as shown (Cl. 11G-i242) 2 taking the form of a pair of oppositely disposed keys 6 on the inside of the axial hole 5 and corresponding keyways in the tubular shaft 3. The tubular shaft 3 is slightly spread to provide rm frictional engagement. The inner knob l may be provided with a centrally located indentation or socket portion l, the purpose of which is to provide ready access of the outer knob 2 to the solid shaft li, and to provide compactness of assembly.
Control knob 2 is of the bartyDe with certain adaptations, and is attached to the inner, solid shaft l, which may control the channel selector switch. The outer knob 2 is composed of suitable ornamental material, and is provided with a substantially bar-shaped rectangular head portion 8 and a protruding base portion 9 which extends axially into the recess l of control knob l. I also provide control knob 2 with an extension or dependingl portion lil extending substantially parallel with the shafts 3, 6l, and of such dimensions as to permit the assembly of an indicating dial il so that the latter will clear both the front panel l2 of the cabinet and the inner knob i. The outer knob-and-dial assembly is tted to the inner shaft i by means similar to those employed for fitting the inner knob i to the tubular shaft (i. The front panel l2 of the cabinet is provided with a pilot light i3, or some similar suitable reference device.
A circular metal indicating dial li is provided, suitably engraved with indicia M so that, for each position of the channel selector switch, a distinguishing marking is brought into alignment with the pilot light i3. The indicating dial il is assembled to the outer knob 2 by a screw l5, or other similar device, which extends through a clearance hole it in the indicating dial il into a threaded hole il in the extension lll of control knob 2. Thus, the dial ll completely surrounds the inner knob i without touching it, and there is a small clearance between the indicating dial ll and the front panel l2 of the cabinet. In this manner, the indicating dial il is caused to rotate as an integral part of the outer knob 2, and the operating channel is indicated by the marking l@ on the indicating dial i l which is in alignment with the pilot light i3.
Figs. 3 and 4 show a similar assembly wherein the inner knob l is assumed to operate a band switch. The outer knob 2 is provided with an indicating dial ii, as before. However, in this application, the inner knob l is also provided with an indicating dial I8 comprising suitable indicia i9 to identify the position of the band switch when in alignment with the pilot light I3. Hence, both switches may be rapidb' adjusted by bringing the proper markings into alignment with the pilot light.
While I have shown and described particular apparatus which embodies my invention, it will be understood that this is for the purpose of illustration of principles involved, and that many modifications may be made Without departing from the true spirit and scope of my invention.
What I claim as new and desire to secure by Letters Patent of the United States is:
1. A control knob arrangement for a pair of coaxial shafts comprising a first knob adapted to engage the outer of said shafts, said first knob having a hole extending longitudinally thereof, the inner of said shafts extending through said hole, a second knob being attached to said inner shaft, said second knob having a depending portion extending substantially parallel with said second shaft and spaced from said second shaft by a distance greater than the radius of said iirst knob, and an annular dial attached to said depending portion, said dial having a central aperture having a diameter greater than the diameter of said first knob, and said dial having indicia thereon for indicating the position of said second knob.
2. A control knob arrangement for a pair of coaxial shafts, the outer of said shafts having mounted therein a circular knob having a longisaid shafts projecting into said socket portion,
a second knob having a rectangular head portion and a rounded base portion adapted to extend into said socket portion, said second knob having a longitudinally extending arm connected to one end of said head portion, said second knob having a longitudinally extending recess adapted to engage the inner of said shafts, said longitudinally extending arm being displaced from said recess by a distance greater than the radius of said rst knob, an annular disk attached to said longitudinally extending arm at its end remote from said rectangular head portion, said disk having an aperture of diameter greater than the diameter of said flrst knob and arranged to encircle said rst knob, said disk having indicia marked thereon, and means displaced from said shafts for indicating the position to which said inner shaft is adjusted, said last meansv comprising a panel having an aperture through which said shafts project and indicia marked on said panel.
DONALD B. KEIM.
No references cited.y
US776884A 1947-09-30 1947-09-30 Control device indicator Expired - Lifetime US2456949A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773390A (en) * 1953-07-14 1956-12-11 Motorola Inc Plural tuner drive
US3064494A (en) * 1959-11-23 1962-11-20 Motorola Inc Insert bushing
EP0322689A2 (en) * 1987-12-24 1989-07-05 Asea Brown Boveri Aktiengesellschaft Electrical apparatus
EP0695984A1 (en) * 1994-08-02 1996-02-07 THOMSON multimedia Search/scan knob for electric or electronic appliances

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773390A (en) * 1953-07-14 1956-12-11 Motorola Inc Plural tuner drive
US3064494A (en) * 1959-11-23 1962-11-20 Motorola Inc Insert bushing
EP0322689A2 (en) * 1987-12-24 1989-07-05 Asea Brown Boveri Aktiengesellschaft Electrical apparatus
EP0322689A3 (en) * 1987-12-24 1990-10-31 Asea Brown Boveri Aktiengesellschaft Electrical apparatus
EP0695984A1 (en) * 1994-08-02 1996-02-07 THOMSON multimedia Search/scan knob for electric or electronic appliances
FR2723453A1 (en) * 1994-08-02 1996-02-09 Thomson Consumer Electronics IMPROVEMENT TO SCROLL / SCREWDRIVERS FOR ELECTRONIC OR ELECTRIC APPLIANCES

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