US2763740A - Oscillatory switch - Google Patents

Oscillatory switch Download PDF

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Publication number
US2763740A
US2763740A US337417A US33741753A US2763740A US 2763740 A US2763740 A US 2763740A US 337417 A US337417 A US 337417A US 33741753 A US33741753 A US 33741753A US 2763740 A US2763740 A US 2763740A
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United States
Prior art keywords
strip
oscillatory
oscillatory member
contact means
spring
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
US337417A
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English (en)
Inventor
Vazquez Charles
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.)
Compagnie Industrielle des Telephones SA
Original Assignee
Compagnie Industrielle des Telephones SA
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 Compagnie Industrielle des Telephones SA filed Critical Compagnie Industrielle des Telephones SA
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Publication of US2763740A publication Critical patent/US2763740A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
    • H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring

Definitions

  • OSCILLATORY SWITCH Filed Feb. 17, 1953 2 Sheets-Sheet 1 I H P I P! l 5 g I [NYE/V708 flai fi 74 ?4 15 zQ f Sept. 18, 1956 c. VAZQUEZ 2,763,740 OSCILLATORY SWITCH Filed Feb. 17, 195; 2 Sheets-Sheet 2 WFM United States OSCILLATORY swrrcn Charles Vazquez, Paris, France,
  • the present invention relates to improvements in electromagnetic buzzers comprising a vibrating strip, called an oscillolame adapted to be used as time base, for use in particular in telecommunication systems.
  • the buzzer which is the object of the present invention is characterised in this that it comprises a device for regulating the frequency of oscillation of the oscillating strip, said device comprising an elastic member which exerts an adjustable pull on the oscillating strip along its axis.
  • the latter is gripped over a portion of its length between two small rigid plates.
  • the movable contacts are carried by two fiat springs arranged on either side of the oscillating strip and separated from their operative position by two lugs fixed on the oscillating strip, these springs being alternately released when the strip oscillates and closing, by their elasticity, the contacts of the buzzer.
  • Fig. 1 shows diagrammatically the device for adjusting the frequency of the vibrating strip
  • Fig. 2 is a view of the contacts of the buzzer in the normal state
  • Fig. 3 is a corresponding view to Fig. 2 with a make contact
  • Figs. 4 and 5 show an embodiment of the vibrating strip
  • Figs. 6 and 7 show two views of the electromagnetic buzzer according to the invention.
  • the frequency-regulating device comprises a traction spring a placed in such a way that its longitudinal axis coincides with that of the vibrating strip b in the normal position.
  • One of its ends is fixed to the vibrating strip at c and the other is integral with the frame d by means of a device intended to eliminate mechanical play, composed of the connection 2 the flexion spring fixed to the frame at g and an adjusting screw 11.
  • the spring 7 has a strong tension which pulls it towards the screw 11 against which it is held constantly resting, so that the state of elongation of the spring a and consequently the pull which it exerts on the strip, depends on the position of the adjusting screw h.
  • the force of the spring a intervenes in the oscillatory frequency of the whole, by its component tangent to the trajectory of the connection 0 which is added to the return couple of the strip only, this having the effect of an increase of the frequency.
  • this device makes it possible to adjust the frequency of the system to a given standard frequency, while the apparatus is in oscillation, which has advantages from the standpoint of saving time.
  • Figs. 2 and 3 show the arrangement of the electrical make contacts.
  • L and L are two flat springs, arranged on either side of the oscillating strip, having at their ends a contact cap of precious metal j and j intended to establish the electric contact with the screws k and k.
  • These springs are fixed to the frame at m and m and have a tension which tends to separate them from the strip b but they are held by two lugs I and I fixed to the strip, so that, when the system is in the normal condition, the contacts are held open, the spacing being adjustable by the screws k and It.
  • the contacts j and j are alternately applied to the corresponding screws with a pressure independent of the position of the oscillating strip and without direct mechanical connection with the latter.
  • the angle formed by the springs L and L with the strip 1) is chosen with a view to minimising the relative displacement of the contacts j and j in relation to the lugs I and I and thus to reducing friction between these two parts.
  • Figs. 4 and 5 show an embodiment of the vibrating spring and of the fixing of the traction spring on the latter.
  • the elastic portion of the oscillating strip is lo cated near the casing.
  • two rigid small plates P and P grip the strip b over nearly the whole of its length, only leaving it free in a small space n located between the holding lugs I and I and the casing, according to Fig. 4.
  • the elastic deformation only occurs at this point.
  • An arrangement of this kind has the advantage that practically it is only deformed in a plane containing the axis of the strip, thus eliminating interference oscillations of twisting and hairpin bends which are found with a completely supple strip.
  • the strip b is axially notched to permit the passage of the connecting wire of the spring a which is fixed at t on said strip as near as possible to the flexible part n of the oscillating strip.
  • the deadhead of the oscillating strip is provided with an axial cavity sufficient not to brake the oscillations of the vibrating strip.
  • Figs. 6 and 7 show an embodiment of the complete apparatus, provided, as is known, with a framework q, a coil r and a blade s.
  • the buzzer operates in the following manner:
  • the device is set when the coil r attracts its blade s which drives the oscillating strip b by means of an arm ending in a pusher.
  • the oscillating strip When the coil releases its blade, the oscillating strip is freed and sets up free oscillations with a sufficient amplitude for the contacts J, J to he applied alternately to the screws k, k.
  • An oscillatory switch comprising, in combination,
  • oscillatory member associated with said hammer for actuating said hammer.
  • An oscillatory switch comprising, in combination, supporting means; stationary contact means mounted on said supporting means; movable contact means mounted on said supporting means movable between an open position spaced from said stationary contact means and a closed position engaging said stationary contact means; spring bias means secured between said supporting means and said movable contact means and tending to move the latter from said open to said closed position; an elongated oscillatory member mounted at one end on said supporting means so as to periodically engage during its oscillation said movable contact means and move it periodically from its closed into its open position, permitting said movable contact means to return by itself, after each such periodic opening movement, from its open to 'its closed position, said elongated oscillatory member comprising afirst relatively small resilient portion close to said one end thereof and a relatively long inflexible portion extending beyond said resilient portion to the other end of said oscillatory member; means for adjusting the oscillatory frequency of said elongated oscillatory member'comprising spring means extending between said other end of said oscillatory member and said supporting means,
  • An oscillatory double switch comprising, in combination, supporting means; an elongated oscillatory member secured at one end thereof to said supporting means, said oscillatory member comprising a first rela* tively small resilient portion close to said one end thereof, where elastic deformation occurs during the oscillation of said oscillatory member, and a relatively long inflexible portion extending from the end of said resilient portion to the other end of said oscillatory member; a pair of lug members secured to the end of said inflexible portion of said oscillatory member close to said resilient portion thereof; a pair of stationary contact means mounted on said supporting means; a pair of movable contact means mounted on said supporting means, each movable between an open position spaced from its corresponding stationary contact means and a closed position engaging its corresponding first contact means; a pair of spring bias means respectively secured at one end thereof to said supporting means and engaging at the other end thereof said pair of lug members respectively, when said oscillatory member is in a position of rest, said pair of movable contact means being respectively mounted on said pair of

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
US337417A 1952-03-04 1953-02-17 Oscillatory switch Expired - Lifetime US2763740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR733216X 1952-03-04

Publications (1)

Publication Number Publication Date
US2763740A true US2763740A (en) 1956-09-18

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ID=9124714

Family Applications (1)

Application Number Title Priority Date Filing Date
US337417A Expired - Lifetime US2763740A (en) 1952-03-04 1953-02-17 Oscillatory switch

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US (1) US2763740A (en(2012))
BE (1) BE518089A (en(2012))
GB (1) GB733216A (en(2012))
NL (1) NL168994B (en(2012))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928915A (en) * 1955-06-11 1960-03-15 Vigren Sten Daniel Arrangement in polarized relays
US2992307A (en) * 1959-05-04 1961-07-11 Stevens Arnold Inc Magnetic switches
US3156798A (en) * 1961-04-14 1964-11-10 Biddle Co James G Resonant frequency reed relay
US3662300A (en) * 1970-12-23 1972-05-09 Bell Telephone Labor Inc Vibrating reed selector having improved contact configuration
US3937002A (en) * 1974-08-20 1976-02-10 Bulova Watch Company, Inc. Solid state, battery operated electronic watch having arm-actuated battery switch

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US367270A (en) * 1887-07-26 colman
US887681A (en) * 1907-05-10 1908-05-12 Francis W Maxstadt Electrical signaling.
FR386943A (fr) * 1908-02-05 1908-06-26 Nilmelior Soc Electricite Perfectionnements apportés à la constitution des trembleurs pour bobines d'induction
US1048670A (en) * 1906-03-16 1912-12-31 Samuel M Kintner Contact for electromagnetic mechanism.
US1336143A (en) * 1916-05-29 1920-04-06 Dayton Eng Lab Co Circuit-breaker indicating device
US1446780A (en) * 1920-09-14 1923-02-27 Ivar L Shogran Electric flashing device
US2075499A (en) * 1936-01-11 1937-03-30 Bell Telephone Labor Inc Switching device
US2433740A (en) * 1946-02-26 1947-12-30 Laurence H Collins Electrical vibrator
US2463426A (en) * 1944-10-20 1949-03-01 Faximile Inc Vibratory switch
US2532274A (en) * 1943-09-25 1950-11-28 Honeywell Regulator Co Vibrator
US2618717A (en) * 1945-08-01 1952-11-18 Hakanssons Ind Ab Oscillating contact device for periodical variation of electric current conditions

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US367270A (en) * 1887-07-26 colman
US1048670A (en) * 1906-03-16 1912-12-31 Samuel M Kintner Contact for electromagnetic mechanism.
US887681A (en) * 1907-05-10 1908-05-12 Francis W Maxstadt Electrical signaling.
FR386943A (fr) * 1908-02-05 1908-06-26 Nilmelior Soc Electricite Perfectionnements apportés à la constitution des trembleurs pour bobines d'induction
US1336143A (en) * 1916-05-29 1920-04-06 Dayton Eng Lab Co Circuit-breaker indicating device
US1446780A (en) * 1920-09-14 1923-02-27 Ivar L Shogran Electric flashing device
US2075499A (en) * 1936-01-11 1937-03-30 Bell Telephone Labor Inc Switching device
US2532274A (en) * 1943-09-25 1950-11-28 Honeywell Regulator Co Vibrator
US2463426A (en) * 1944-10-20 1949-03-01 Faximile Inc Vibratory switch
US2618717A (en) * 1945-08-01 1952-11-18 Hakanssons Ind Ab Oscillating contact device for periodical variation of electric current conditions
US2433740A (en) * 1946-02-26 1947-12-30 Laurence H Collins Electrical vibrator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928915A (en) * 1955-06-11 1960-03-15 Vigren Sten Daniel Arrangement in polarized relays
US2992307A (en) * 1959-05-04 1961-07-11 Stevens Arnold Inc Magnetic switches
US3156798A (en) * 1961-04-14 1964-11-10 Biddle Co James G Resonant frequency reed relay
US3662300A (en) * 1970-12-23 1972-05-09 Bell Telephone Labor Inc Vibrating reed selector having improved contact configuration
US3937002A (en) * 1974-08-20 1976-02-10 Bulova Watch Company, Inc. Solid state, battery operated electronic watch having arm-actuated battery switch

Also Published As

Publication number Publication date
GB733216A (en) 1955-07-06
NL168994B (nl)
BE518089A (en(2012))

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