GB944528A - Variable impedance device - Google Patents

Variable impedance device

Info

Publication number
GB944528A
GB944528A GB1877/62A GB187762A GB944528A GB 944528 A GB944528 A GB 944528A GB 1877/62 A GB1877/62 A GB 1877/62A GB 187762 A GB187762 A GB 187762A GB 944528 A GB944528 A GB 944528A
Authority
GB
United Kingdom
Prior art keywords
screw
cylinder
tubular
bore
externally
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
Application number
GB1877/62A
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Publication of GB944528A publication Critical patent/GB944528A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/041—Means for preventing rotation or displacement of the core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/10—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by means of a movable shield
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18752—Manually driven

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

944,528. Capacitors; inductors. CORNING GLASS WORKS. Jan. 18, 1962 [Jan. 23, 1961], No. 1877/62. Headings H1M and H1T. An impedance device comprises a metal shell formed with a small diameter externally tubular portion conjoined to a large diameter tubular end portion; the bore of the smaller portion being partially noncircular and traversed by a screw whose head is resiliently seated on an end surface of the larger portion; a first element comprising an axially movable hollow cylinder surrounding the smaller portion with an axial tubular shaft of noncircular external crosssection extending within the bore of the smaller portion to internally engage the threads of the screw; and a dielectric tube surrounding the hollow cylinder, attached at one end to the larger portion, and supporting externally a second element. In a capacitor (Fig. 1) a circular metal shell comprising a small diameter tubular portion 11, conjoined to a large diameter tubular portion 12 counterbored and coned at its open end and soldered to a threaded tubular panel mounting 30, is traversed by a screw 21 whose head 22 has a conical surface 23 pressed against the coned internal surface 16 by spring 26 bearing on the inside of mounting 30. An electrode cylinder 35 surrounding portion 11 has an axially extending tubular shaft 36 threaded on screw 21 and of square external cross-section to engage the squared internal bore of 11 for axial adjustment by a screw driver slot of the head 22, and is closely surrounded by dielectric cylinder 40 soldered to portion 12 and carrying an external cylindrical electrode 44 co-operating with axially movable electrode 35. A spiral winding may be formed externally on the dielectric cylinder and inductively varied by traversal of cylinder 35 therein (Fig. 4, not shown).
GB1877/62A 1961-01-23 1962-01-18 Variable impedance device Expired GB944528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84196A US3051879A (en) 1961-01-23 1961-01-23 Variable impedance device

Publications (1)

Publication Number Publication Date
GB944528A true GB944528A (en) 1963-12-18

Family

ID=22183428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1877/62A Expired GB944528A (en) 1961-01-23 1962-01-18 Variable impedance device

Country Status (2)

Country Link
US (1) US3051879A (en)
GB (1) GB944528A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274465A (en) * 1966-09-20 Two-position trimmer capacitor
US3219893A (en) * 1962-03-21 1965-11-23 Richard U Clark Variable capacity trimmer condensers
US3360697A (en) * 1962-03-29 1967-12-26 Jfd Electronics Corp Trimmer capacitor with direct travel mechanism
US3226616A (en) * 1962-08-22 1965-12-28 Jfd Electronics Corp Trimmer capacitor with direct travel mechanism
US3196331A (en) * 1962-10-22 1965-07-20 Voltronics Corp Piston trimmer capacitor
US3263140A (en) * 1963-07-24 1966-07-26 Jfd Electronics Corp Trimmer capacitor with direct travel mechanism
US3273031A (en) * 1963-10-21 1966-09-13 Matthew A Lafer Direct travel trimmer capacitor
US3267764A (en) * 1964-03-03 1966-08-23 Berman Nelson Torque element
US3808479A (en) * 1973-08-06 1974-04-30 Victor Insetta Air dielectric capacitor
EP1962301A1 (en) * 2007-02-23 2008-08-27 HÜTTINGER Elektronik GmbH + Co. KG Element for adjustment network, adjustment network and application of the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922093A (en) * 1957-01-22 1960-01-19 Jfd Electronics Corp Coaxial trimmer capacitors
US2930952A (en) * 1958-06-12 1960-03-29 United Electronics Company Variable vacuum capacitor

Also Published As

Publication number Publication date
US3051879A (en) 1962-08-28

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