US2578965A - Indicating device constituted by a scale and an index which can move along a guide path - Google Patents

Indicating device constituted by a scale and an index which can move along a guide path Download PDF

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Publication number
US2578965A
US2578965A US666654A US66665446A US2578965A US 2578965 A US2578965 A US 2578965A US 666654 A US666654 A US 666654A US 66665446 A US66665446 A US 66665446A US 2578965 A US2578965 A US 2578965A
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US
United States
Prior art keywords
index
scale
rope
guide path
indicating device
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
US666654A
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English (en)
Inventor
Blok Henri
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
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Publication of US2578965A publication Critical patent/US2578965A/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
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/041—Pointers, markers, or the like, for tuning dials; Folding dials

Definitions

  • This invention relates to an indicating device constituted by a scale and an index which can move along a guide path, the index being secured to a closed rope system.
  • a rope system may be constituted either by an endless rope guided over a plurality of guide rollers, one of which can be driven, or by a rope which may be unwound from one roller and wound on another.
  • the guide path has a curved shape, the rope connected to the index being guided in such a manner that its length remains constant upon displacement of the index.
  • the guide path may constitute a part of an ellipse, whilst the rope by means of which the index is connected, is guided on each side of the index over rollers placed in the focuses of the said ellipse.
  • a slide path may be provided in parallel with the guide path, the rope being guided over the convex side of the said slide path.
  • the use of the invention allows of a very simple construction of the guide path, i. e. in the form of a slit in the cabinet of the apparatus on which the indicating device is arranged.
  • Figure 1 is an elevation view of a wireless set comprising a curved scale and a guide path for the index in the form of a. part of an ellipse.
  • Figure 2 shows diagrammatically the arrangement of the parts of the drive for the index.
  • Figure 3 is a sectional view of a detail of the index and of the guide path.
  • Figure 4 shows a longitudinal section of a further embodiment of the invention, whilst Figure 5 is a sectional view of this embodiment.
  • the wireless set comprises a cabinet I which may be. moulded from synthetic resin.
  • the top of this cabinet which carries a scale 2, has a curved shape to which the scale has been adapted.
  • The, scale is. covered by an index 3, which is driven by an operating mechanism 4.
  • This figure 3 is a sectional view of the cabinet and 0f the scale in a plane normal to the guide path.
  • the cabinet I has provided in it a slit H) which serves as the guide path.
  • the index 3 is arranged on a plate ll having a tail-like extension !2 passed through the slit. To this extension, by means of a screw I3, is fixed the rope, of which only the parts 8 and 9 are shown. The index is drawn against the cabinet by the rope without any further expedients for guiding being required. Under the plate II is a little disc of felt M for the purpose of reducing the friction.
  • the cabinet I comprises, as before, a slit l6 serving as a guide for the index. Parallel to this guide there is arranged a slide path [6 over the convex side of which the parts 8 and 9 of the rope are guided.
  • the slide path I6 may consist of a strip of sheetmetal, secured to the cabinet by 'means'of a plurality of tags II. It may comprise a groove 18 to accommodate the rope. This rope is guided from the extremities of the slide path via rollers 6.
  • the index 3, which covers the scale 2 is introduced from the bottom into the slit I0 and bears against the inside of the cabinet by means of a plate I l and a piece of felt l4.
  • the index comprises a taillike extension I 2 under which the rope is clamped in position by means of a tag l5.
  • the rope In the vicinity of the index the rope is lifted a little from the slide path, due to which a small pressure is exerted on the index, pushing the latter against the inside of the cabinet. It is evident that the slide path also may form part of the cabinet itself.
  • An indicating device comprising a scale, a support having a guiding surface located adjacent said scale and shaped as a portion of an ellipse in the vicinity of one end of the minor axis thereof, an index movably mounted on said guiding surface to move over an elliptical pathadjacent the scale and corresponding to the elliptical shape of the surface, a guide member supported at one focus of the ellipse, a second guide member supported at the other focus of the ellipse, a closed cord system encircling said guide members, said 25;
  • index being fixed to said cord system at a point lying in a line perpendicular to a line joining the foci of the ellipse, and means to move said cord system and including a member engaging said cord system.
  • An indicating device comprising a scale, a,
  • index being fixed to said cord system at a point lying in a line perpendicular to a line joining the foci of the ellipse, and means to move said cord system and including a member engaging said cord system at the intersection of a line perpendicular to a line joining the foci of the ellipse with a portion of the cord system opposite the portion at which the index is fixed.

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  • Casings For Electric Apparatus (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
US666654A 1945-03-03 1946-05-02 Indicating device constituted by a scale and an index which can move along a guide path Expired - Lifetime US2578965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE608915X 1945-03-03

Publications (1)

Publication Number Publication Date
US2578965A true US2578965A (en) 1951-12-18

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ID=3875199

Family Applications (1)

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US666654A Expired - Lifetime US2578965A (en) 1945-03-03 1946-05-02 Indicating device constituted by a scale and an index which can move along a guide path

Country Status (4)

Country Link
US (1) US2578965A (is")
BE (1) BE458294A (is")
FR (1) FR924993A (is")
GB (1) GB608915A (is")

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707902A (en) * 1951-08-23 1955-05-10 Bendix Aviat Corp Optical system for cathode-ray tubes
US3011034A (en) * 1957-03-20 1961-11-28 Gen Motors Corp Linear scale timer
DE19922475A1 (de) * 1999-05-15 2001-05-03 Frank Engel Gelenkgetriebe für Zeigerantrieb
DE10325793A1 (de) * 2003-06-05 2004-12-30 Borg Instruments Ag Linearzeiger
US20110203512A1 (en) * 2010-02-19 2011-08-25 Visteon Global Technologies, Inc. Gauge
DE102014004181A1 (de) * 2014-03-22 2015-09-24 Audi Ag Anzeigevorrichtung für ein Kraftfahrzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1695919A (en) * 1925-08-07 1928-12-18 Leslie A Gould Tuning device
US2397306A (en) * 1943-02-11 1946-03-26 Philco Radio & Television Corp Portable radio receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1695919A (en) * 1925-08-07 1928-12-18 Leslie A Gould Tuning device
US2397306A (en) * 1943-02-11 1946-03-26 Philco Radio & Television Corp Portable radio receiver

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707902A (en) * 1951-08-23 1955-05-10 Bendix Aviat Corp Optical system for cathode-ray tubes
US3011034A (en) * 1957-03-20 1961-11-28 Gen Motors Corp Linear scale timer
DE19922475A1 (de) * 1999-05-15 2001-05-03 Frank Engel Gelenkgetriebe für Zeigerantrieb
DE10325793A1 (de) * 2003-06-05 2004-12-30 Borg Instruments Ag Linearzeiger
US20070194901A1 (en) * 2003-06-05 2007-08-23 Wolfgang Ziegler Linear Indicator
US20110203512A1 (en) * 2010-02-19 2011-08-25 Visteon Global Technologies, Inc. Gauge
US8857369B2 (en) * 2010-02-19 2014-10-14 Visteon Global Technologies, Inc. Gauge
DE102014004181A1 (de) * 2014-03-22 2015-09-24 Audi Ag Anzeigevorrichtung für ein Kraftfahrzeug
DE102014004181B4 (de) * 2014-03-22 2015-11-26 Audi Ag Anzeigevorrichtung für ein Kraftfahrzeug

Also Published As

Publication number Publication date
GB608915A (en) 1948-09-22
FR924993A (fr) 1947-08-21
BE458294A (is")

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