US3301212A - Manually adjustable dial index member - Google Patents

Manually adjustable dial index member Download PDF

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Publication number
US3301212A
US3301212A US401154A US40115464A US3301212A US 3301212 A US3301212 A US 3301212A US 401154 A US401154 A US 401154A US 40115464 A US40115464 A US 40115464A US 3301212 A US3301212 A US 3301212A
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Prior art keywords
shank
ring
panel
nut
journal
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Expired - Lifetime
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US401154A
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Harry R Foster
Elmo E Crump
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OHMEGA LAB
OHMEGA LABS
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OHMEGA LAB
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    • 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

Definitions

  • FIG. 1 MANUALLY ADJUSTABLE DIAL INDEX MEMBER Filed Oct. 2, 1964 FIG. 1
  • This invention relates to a device for retaining a visible indication of the particular setting of a control knob with respect to a dial.
  • the invention relates to a device for indicating a previous setting of an electrical component operated by way of a control knob mounted coaxially with the device.
  • an annular ring is provided as part of such a device and is journaled upon the round shank of a nut that may also serve to hold the electrical component on a panel, the nut being threaded upon a journal that extends through an opening in the panel and through which, in turn, an adjusting shaft extends.
  • the electrical component to which the adjusting shaft is attached may be any one or more of the tunable electrical components, such as capacitors, inductors, potentiometers, switches, and the like.
  • a dial is provided on or in conjunction with the panel and the ring or knob has an indicator that may be set at any point on the dial. Friction means are provided to restrict the rotation of the ring so that it will not easily be moved out of place, although it can be rotated deliberately.
  • a tuning knob which may be of any type, is attached to the shaft and has a pointer that may be set with respect to the dial, but may also be set with respect to the indicator on the ring.
  • One of the principal objects of the present invention is to provide a device that will retain an indication of the setting of an adjusting knob of an adjustable electrical component. Further objects will be apparent from the following specification, together with the drawing in which:
  • FIG. 1 is a view partly in cross-section of a dial setting device according to the invention.
  • FIG. 2 shOWS a front view of the dial setting device of FIG. 1.
  • the dial setting device in FIG. 1 is to be used in conjunction with a variable electrical component 11 which may be a volume control, a tuning capacitor, a variable inductance, a switch, or any combination thereof fitted with a tuning or adjusting shaft 12 rotatable, either continuously or in steps, through some angle.
  • a variable electrical component 11 which may be a volume control, a tuning capacitor, a variable inductance, a switch, or any combination thereof fitted with a tuning or adjusting shaft 12 rotatable, either continuously or in steps, through some angle.
  • Some of these components have typical maximum angles, such as 180 degrees for a tuning capacitor or 270 degrees for certain otentiometers or even more than 360 degrees for other potentiometers, and this invention may be used with any of them.
  • the shaft 12 extends through an externally threaded journal 13 which is held within an aperture 14 in a panel 16 by the pressure between a regular hex-nut 17 and a special nut 18.
  • the nut 17 is merely a spacer to
  • the nut 18 has a round shank 19 threaded on the journal 13 and tightened against the panel 16 so that pressure between the end of the shank 19 and one surface of the nut 17 holds the component 11 firmly in place.
  • a lock washer may be used in the customary manner.
  • the nut 18 has a radially extending shoulder 21 at the other end.
  • the entire axial length of the nut 18, including both 3,361,212 Patented Jan. 31, 1957 the shank portion 19 and the shoulder 21 be substantially equal to the face of the panel 17. This distance may be referred to at the effective length of the journal.
  • the shoulder 21 is normally hexagonal.
  • annular ring 22 Journaled on the round shank 19 is an annular ring 22 having a section 23 of reduced thickness immediately adjacent to the shank and with a central bore 20 large enough for unhindered rotation on the shank.
  • the total axial length of the annular ring 22 at the periphery thereof is substantially equal to the axial length of the nut 18, but the section 23 :must have a shorter axial dimension than the distance between the face of the panel 16 and the shoulder 21.
  • a frictional device such as a compression spring washer 24, that bears against both the end of the section 23 and the shoulder 21 to restrict the freedom of rotation of the ring 22.
  • the friction provided by the spring 24 must be sufiicient to hold the ring 22 in Whatever position it may be set, and yet the frictional force must not be sufficient to make it unduly diflicult to turn the ring to a new setting whenever it may be desired to do so.
  • an adjusting knob 26 Attached to the shaft 12, by a set screw 25, is an adjusting knob 26 which is shown as having a pointer 27, although this pointer may actually be in the form of a colored dot or any other means for indicating the setting position of the knob and hence of the shaft 12.
  • FIG. 2 there is a dial 28 on or attached to the surface of the panel 16 in the area around the ring 22.
  • the ring itself, is provided with at least one indicator or marker 29 that can be set in conjunction with the dial 28.
  • the knob 26 and its pointer 27 are also shown in FIG. 2.
  • the knob 26 may be set so that the pointer 27 is opposite any mark on the dial 28. If it is desired to move the knob to a different location and then to return it to the original location, the ring 22 may be rotated so that the indicator 29 is located in the same spot as the pointer 27. Thereafter, the knob 26 may be moved to a different position and then brought back to the original position by realigning the pointer 27 with the indicator 29. Because of the fact that the knob 26 is spaced from the ring 22 and therefore exerts no drag thereon, and further because of the fact that no other moving part of the entire apparatus is in contact with the ring 22, the setting of the indicator 29 can be expected to be relatively permanent until it is deliberately moved to a different position.
  • a dial setting device for an adjustable electrical component comprising an adjusting shaft attached to said component, an externally threaded journal through which said shaft extends, and a panel having an aperture through which said journal extends, said device comprising: an internally threaded nut fitting on said externally threaded journal to hold said electrical component in place on said panel, said nut having a round shank,'one end of which bears against said panel, and a shoulder extending substantially radially from the other end of said shank, the surface of said shoulder facing said one end of shank being distant from said one end by a predetermined length; an annular ring surrounding said shank to be freely rotatably journalled thereon, the thickness of the portion of said ring in contact with said shank being less than the length of said shank; a compression device between said ring and said nut to apply pressure and rotational friction therebetween; a dial -on said panel; an indicator on said annular ring setta-ble with respect to said dial; and a knob on said shaft spaced from said ring
  • a dial setting device for an adjustable electrical component comprising an adjusting shaft attached to said component, an externally threaded journal through which said journal extends, said device comprising: an internally threaded nut fitting on said externally threaded journal to hold said electrical component in place on said panel, said nut having a round shank, one end of which bears against said panel, and a shoulder extending substantially radially from the other end of said shank, the surface of said shoulder facing said one end of shank being distant from said one end by a predetermined length; an annular ring surrounding said shank to be freely rotatably journalled thereon, the thickness of the portion of said ring in contact with said shank being less than the length of said shank; a compression device on said shank in the region thereof between the face of said ring distal from said panel and the surface of said shoulder facing said panel to apply axial pressure and rotational friction therebetween; a dial on said panel; an indicator on said annular ring settable in conjunction with said dial; and a knob on said shaft spaced from
  • a dial setting device for an adjustable electrical component which comprises an adjusting shaft attached to said component, an externally threaded journal through which said shaft extends, and a panel having an aperture through which said journal extends, said device comprising an internally threaded nut fitting on said externally threaded journal to hold said component on said panel, said nut having a round shank of predetermined length and a hexagonal shoulder extending substantially radially therefrom at one end; an annular ring surrounding said shank to be freely r-otatably journalled thereon, the periphery of said ring having an axial length substantially equal to the axial length of said shank plus the axial length of said shoulder, and the portion of said ring radially closest to said shank having an axial length less than the axial length of said shank; a compression spring between said ring and said shoulder to exert frictional drag on said ring to restrict the freedom of rotation thereof, whereby said ring will remain in any set position; a dial on said panel; and indicator on said annular ring setable in

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

1967 H. R. FOSTER ETAL 3,301,212
MANUALLY ADJUSTABLE DIAL INDEX MEMBER Filed Oct. 2, 1964 FIG. 1
INVENTOR,
Harry /Q. Foster g EZmo E. Cfium a Arfhur ,4. Marc/7 ATTORNEY United States Patent f 3,301,212 MANUALLY ADJUSTABLE DIAL INDEX MEMBER Harry R. Foster, Montville, and Elmo E. Crump, West Caldwell, N.J., assignors to Ohmega Laboratories, Montville, NJ a partnership Filed Oct. 2, 1964, Ser. No. 401,154 3 Claims. (Cl. 116124) This invention relates to a device for retaining a visible indication of the particular setting of a control knob with respect to a dial. In particular, the invention relates to a device for indicating a previous setting of an electrical component operated by way of a control knob mounted coaxially with the device.
In operating electrical apparatus, it is frequently desirable to have some means for indicating the orient-ation to which a particular control knob has been set so that the knob can be rotated to a different position and brought back to the original orientation quite readily. In accordance with this invention, an annular ring is provided as part of such a device and is journaled upon the round shank of a nut that may also serve to hold the electrical component on a panel, the nut being threaded upon a journal that extends through an opening in the panel and through which, in turn, an adjusting shaft extends. The electrical component to which the adjusting shaft is attached may be any one or more of the tunable electrical components, such as capacitors, inductors, potentiometers, switches, and the like. A dial is provided on or in conjunction with the panel and the ring or knob has an indicator that may be set at any point on the dial. Friction means are provided to restrict the rotation of the ring so that it will not easily be moved out of place, although it can be rotated deliberately. A tuning knob, which may be of any type, is attached to the shaft and has a pointer that may be set with respect to the dial, but may also be set with respect to the indicator on the ring.
One of the principal objects of the present invention is to provide a device that will retain an indication of the setting of an adjusting knob of an adjustable electrical component. Further objects will be apparent from the following specification, together with the drawing in which:
FIG. 1 is a view partly in cross-section of a dial setting device according to the invention; and
FIG. 2 shOWS a front view of the dial setting device of FIG. 1.
The dial setting device in FIG. 1 is to be used in conjunction with a variable electrical component 11 which may be a volume control, a tuning capacitor, a variable inductance, a switch, or any combination thereof fitted with a tuning or adjusting shaft 12 rotatable, either continuously or in steps, through some angle. Some of these components have typical maximum angles, such as 180 degrees for a tuning capacitor or 270 degrees for certain otentiometers or even more than 360 degrees for other potentiometers, and this invention may be used with any of them. The shaft 12 extends through an externally threaded journal 13 which is held within an aperture 14 in a panel 16 by the pressure between a regular hex-nut 17 and a special nut 18. The nut 17 is merely a spacer to determine the distance that the outer end of the journal 13 will extend beyond the panel 16, and it need not be used in every instance.
The nut 18 has a round shank 19 threaded on the journal 13 and tightened against the panel 16 so that pressure between the end of the shank 19 and one surface of the nut 17 holds the component 11 firmly in place. A lock washer may be used in the customary manner. In addition to the round shank portion 19, the nut 18 has a radially extending shoulder 21 at the other end. Preferably the entire axial length of the nut 18, including both 3,361,212 Patented Jan. 31, 1957 the shank portion 19 and the shoulder 21 be substantially equal to the face of the panel 17. This distance may be referred to at the effective length of the journal. The shoulder 21 is normally hexagonal.
Journaled on the round shank 19 is an annular ring 22 having a section 23 of reduced thickness immediately adjacent to the shank and with a central bore 20 large enough for unhindered rotation on the shank. The total axial length of the annular ring 22 at the periphery thereof is substantially equal to the axial length of the nut 18, but the section 23 :must have a shorter axial dimension than the distance between the face of the panel 16 and the shoulder 21. Between the outer end of 23 and the near surface of the shoulder 21 is a frictional device, such as a compression spring washer 24, that bears against both the end of the section 23 and the shoulder 21 to restrict the freedom of rotation of the ring 22. The friction provided by the spring 24 must be sufiicient to hold the ring 22 in Whatever position it may be set, and yet the frictional force must not be sufficient to make it unduly diflicult to turn the ring to a new setting whenever it may be desired to do so.
Attached to the shaft 12, by a set screw 25, is an adjusting knob 26 which is shown as having a pointer 27, although this pointer may actually be in the form of a colored dot or any other means for indicating the setting position of the knob and hence of the shaft 12.
In FIG. 2 there is a dial 28 on or attached to the surface of the panel 16 in the area around the ring 22. The ring, itself, is provided with at least one indicator or marker 29 that can be set in conjunction with the dial 28. The knob 26 and its pointer 27 are also shown in FIG. 2.
In operation, the knob 26 may be set so that the pointer 27 is opposite any mark on the dial 28. If it is desired to move the knob to a different location and then to return it to the original location, the ring 22 may be rotated so that the indicator 29 is located in the same spot as the pointer 27. Thereafter, the knob 26 may be moved to a different position and then brought back to the original position by realigning the pointer 27 with the indicator 29. Because of the fact that the knob 26 is spaced from the ring 22 and therefore exerts no drag thereon, and further because of the fact that no other moving part of the entire apparatus is in contact with the ring 22, the setting of the indicator 29 can be expected to be relatively permanent until it is deliberately moved to a different position.
While this invention has been described in terms of the specific embodiment, it will be understood by those skilled in the art that various modifications may be made therein without departing from the true scope of the invention as determined by the following claims.
What is claimed is:
1. A dial setting device for an adjustable electrical component comprising an adjusting shaft attached to said component, an externally threaded journal through which said shaft extends, and a panel having an aperture through which said journal extends, said device comprising: an internally threaded nut fitting on said externally threaded journal to hold said electrical component in place on said panel, said nut having a round shank,'one end of which bears against said panel, and a shoulder extending substantially radially from the other end of said shank, the surface of said shoulder facing said one end of shank being distant from said one end by a predetermined length; an annular ring surrounding said shank to be freely rotatably journalled thereon, the thickness of the portion of said ring in contact with said shank being less than the length of said shank; a compression device between said ring and said nut to apply pressure and rotational friction therebetween; a dial -on said panel; an indicator on said annular ring setta-ble with respect to said dial; and a knob on said shaft spaced from said ring and hav ing means for indicating the setting of said knob with respect to said indicator.
2. A dial setting device for an adjustable electrical component comprising an adjusting shaft attached to said component, an externally threaded journal through which said journal extends, said device comprising: an internally threaded nut fitting on said externally threaded journal to hold said electrical component in place on said panel, said nut having a round shank, one end of which bears against said panel, and a shoulder extending substantially radially from the other end of said shank, the surface of said shoulder facing said one end of shank being distant from said one end by a predetermined length; an annular ring surrounding said shank to be freely rotatably journalled thereon, the thickness of the portion of said ring in contact with said shank being less than the length of said shank; a compression device on said shank in the region thereof between the face of said ring distal from said panel and the surface of said shoulder facing said panel to apply axial pressure and rotational friction therebetween; a dial on said panel; an indicator on said annular ring settable in conjunction with said dial; and a knob on said shaft spaced from said ring and having a pointer settable with respect to said indicator.
3. A dial setting device for an adjustable electrical component which comprises an adjusting shaft attached to said component, an externally threaded journal through which said shaft extends, and a panel having an aperture through which said journal extends, said device comprising an internally threaded nut fitting on said externally threaded journal to hold said component on said panel, said nut having a round shank of predetermined length and a hexagonal shoulder extending substantially radially therefrom at one end; an annular ring surrounding said shank to be freely r-otatably journalled thereon, the periphery of said ring having an axial length substantially equal to the axial length of said shank plus the axial length of said shoulder, and the portion of said ring radially closest to said shank having an axial length less than the axial length of said shank; a compression spring between said ring and said shoulder to exert frictional drag on said ring to restrict the freedom of rotation thereof, whereby said ring will remain in any set position; a dial on said panel; and indicator on said annular ring setable in conjunction with said dial to serve as a pre determined setting; and a knob on said shaft spaced from said ring and having a pointer indicating the setting of said knob with respect to said indicator.
References Cited by the Examiner UNITED STATES PATENTS 2,005,792 6/1935 Leins 73431 2,479,658 8/ 1949 Wilks 116-124.1 2,890,299 6/1959 Adams et al 116133 2,995,105 8/1961 Maltby 116-133 3,013,339 12/1961 Brewer et al 116-115 FOREIGN PATENTS 25,492 11/ 1935 Australia.
LOUIS I. CAPOZI, Primary Examiner.

Claims (1)

1. A DIAL SETTING DEVICE FOR AN ADJUSTABLE ELECTRICAL COMPONENT COMPRISING AN ADJUSTING SHAFT ATTACHED TO SAID COMPONENT, AN EXTERNALLY THREADED JOURNAL THROUGH WHICH SAID SHAFT EXTENDS, AND A PANEL HAVING AN APERTURE THROUGH WHICH SAID JOURNAL EXTENDS, SAID DEVICE COMPRISING: AN INTERNALLY THREADED NUT FITTING ON SAID EXTERNALLY THREADED JOURNAL TO HOLD SAID ELECTRICAL COMPONENT IN PLACE ON SAID PANEL, SAID NUT HAVING A ROUND SHANK, ONE END OF WHICH BEARS AGAINST SAID PANEL, AND A SHOULDER EXTENDING SUBSTANTIALLY RADIALLY FROM THE OTHER END OF SAID SHANK, THE SURFACE OF SAID SHOULDER FACING SAID ONE END OF SHANK BEING DISTANT FROM SAID ONE END BY A PREDETERMINED LENGTH; AN ANNULAR RING SURROUNDING SAID SHANK TO BE FREELY ROTATABLY JOURNALLED THEREON, THE THICKNESS OF THE PORTION OF SAID RING IN CONTACT WITH SAID SHANK BEING LESS THAN THE LENGTH OF SAID SHANK; A COMPRESSION DEVICE BETWEEN SAID RING AND SAID NUT TO APPLY PRESSURE AND ROTATIONAL
US401154A 1964-10-02 1964-10-02 Manually adjustable dial index member Expired - Lifetime US3301212A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013036A (en) * 1974-12-23 1977-03-22 Siemens Aktiengesellschaft Time switch device for X-ray diagnostic apparatus
USD773917S1 (en) * 2015-05-28 2016-12-13 Sears Brands, L.L.C. Oven knob
USD779303S1 (en) 2015-05-28 2017-02-21 Sears Brands, L.L.C. Oven knob
USD786651S1 (en) 2015-05-28 2017-05-16 Sears Brands, L.L.C. Oven knob
EP3869104A1 (en) * 2020-02-20 2021-08-25 LG Electronics Inc. Cooking appliance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005792A (en) * 1932-03-18 1935-06-25 Milwaukee Gas Specialty Co Bezel mounting
AU2549235A (en) * 1936-11-13 1936-11-26 Philco Radio & Television Corporation Indicating device for radio receiver
US2479658A (en) * 1945-03-29 1949-08-23 Wilks Roy Coles Tuning means for radio receivers and the like
US2890299A (en) * 1956-12-03 1959-06-09 Gen Motors Corp Selector and indicator device
US2995105A (en) * 1959-05-14 1961-08-08 Frederick L Maltby Control and indicating device
US3013339A (en) * 1957-08-08 1961-12-19 Internat Typographical Union O Micrometer device for operating the movable straightedge of a line-up table and the like

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005792A (en) * 1932-03-18 1935-06-25 Milwaukee Gas Specialty Co Bezel mounting
AU2549235A (en) * 1936-11-13 1936-11-26 Philco Radio & Television Corporation Indicating device for radio receiver
US2479658A (en) * 1945-03-29 1949-08-23 Wilks Roy Coles Tuning means for radio receivers and the like
US2890299A (en) * 1956-12-03 1959-06-09 Gen Motors Corp Selector and indicator device
US3013339A (en) * 1957-08-08 1961-12-19 Internat Typographical Union O Micrometer device for operating the movable straightedge of a line-up table and the like
US2995105A (en) * 1959-05-14 1961-08-08 Frederick L Maltby Control and indicating device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013036A (en) * 1974-12-23 1977-03-22 Siemens Aktiengesellschaft Time switch device for X-ray diagnostic apparatus
USD773917S1 (en) * 2015-05-28 2016-12-13 Sears Brands, L.L.C. Oven knob
USD779303S1 (en) 2015-05-28 2017-02-21 Sears Brands, L.L.C. Oven knob
USD786651S1 (en) 2015-05-28 2017-05-16 Sears Brands, L.L.C. Oven knob
EP3869104A1 (en) * 2020-02-20 2021-08-25 LG Electronics Inc. Cooking appliance
US11371714B2 (en) 2020-02-20 2022-06-28 Lg Electronics Inc. Cooking appliance

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