US2933566A - Hand microphone for sound transducing appliances - Google Patents

Hand microphone for sound transducing appliances Download PDF

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Publication number
US2933566A
US2933566A US656106A US65610657A US2933566A US 2933566 A US2933566 A US 2933566A US 656106 A US656106 A US 656106A US 65610657 A US65610657 A US 65610657A US 2933566 A US2933566 A US 2933566A
Authority
US
United States
Prior art keywords
switch
microphone
sound transducing
bolt
hand microphone
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
US656106A
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English (en)
Inventor
Muller Willy
Holub Otto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2933566A publication Critical patent/US2933566A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/002—Switches with compound movement of handle or other operating part having an operating member rectilinearly slidable in different directions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Definitions

  • the invention relates to a hand microphone for sound transducing appliances which is provided with switch means for switching the said sound transducing appliance to recording, reproduction or repetition operational conditions.
  • a hand microphone for a sound transducing appliance comprising in combination: a casing, a microphone capsule and a remote control switch both arranged in said casing, and electrical leads connecting the said microphone capsuie and the said switch with one another and with the said sound transducing appliance, the said switch having three working positions connecting the said sound transducing appliance for recording, reproduction and repetition, respectively, and a rest position switching the said sound transducing appliance off, each of the said working positions being attainable only from the said rest position.
  • Fig. 1 is a plan view of the hand microphone
  • Fig. 2 is a longitudinal section thereof
  • Fig. 3 shows the switch on an enlarged scale in a longitudinal section corresponding to Fig. 2,
  • Figs. 4a and 4b show the switch in the rest position, from below and above, respectively, with the omission of some components
  • Figs. 5a and 5b correspond to Figs. 4a and 4b but show the repetition position
  • Figs. 6a and 6b correspond to Figs. 4a and 4b but show the reproduction position.
  • the casing of the microphone illustrated consists of two parts 1 and 2, which are connected to one another by screws 3.
  • the rear face of the casing part 1 is fiat in order to permit the microphone to lie flat on a table top or the like.
  • a remote control switch 5 is mounted by means of three screws 6. Adjacent the control knob 7 of the switch 5 three working positions are marked on the frontal face of the upper casing part 2, A denoting the recording position, W the reproducing position and R the repetition position.
  • letters other markings could be provided, e.g. coloured dots.
  • a slide switch 9 the knurled finger grip 10 of which is slidable in a recess 11 of the casing part 1, without protruding beyond the flat rear face thereof.
  • This switch 9 serves for switching in the usual manner a damping resistor 12 connected either in parallel or in series with the microphone capsule 8.
  • the leads 13 starting from the microphone capsule pass into a cable 14 which serves to connect the hand microphone to the sound recording and reproducing appliance.
  • This cable moreover contains four leads 15 which lead to the contact springs 16A, 16W, 16R and 17, respectively, of the remote control switch 5.
  • the contact springs 16A, 16W and 16R project through slots 18 mutually offset of a ring 19 into the interior of the latter.
  • the ring 19 is fixed by means of the aforesaid screws 6 with one end face to the base plate 4, these screws serving also for the attachment of a guide plate 20 to the other end face of the ring.
  • a stepped bushing 30 is mounted which serves as a pivot for a pawl 31 pivotally mounted thereon and having a slot 32 likewise engaged by the screw-threaded bolt 22.
  • the two prongs 33 of the pawl 31 on both sides of the slot 32 are chamfered to a wedge shape (see for example Fig. 41:).
  • a eaf spring 34 is attached to a holder 35 which is in turn mounted on the ring 19 by means of one of the screws 6.
  • the arcuate free end 36 of the leaf spring 34 serves to arrest the pawl 31 in that it cooperates with the wedge-shaped, chamfered tips thereof.
  • the switch knob 7 is so proportioned at its base that in the rest position it covers the slots 37 completely, and may do so even when shifted into any one of the three working positions.
  • an inwardly directed projection 38 of semiannular shape is provided, which has a shoulder 39 in which engages the switch 5 with its guide plate 20.
  • Two inwardly projecting, symmetrically disposed longitudinal ribs 40 of the upper casing part 2 serve as an abutment for the microphone capsule 8 so that the latter, together with the switch 9, the base plate 4, the remote control switch 5 and all other internal components can be simply inserted between the casing parts 1 and 2 so as to be held in position by the casing.
  • a fabric sieve is denoted which is visible in Fig. 1 through five slots 42 which are provided in the upper casing part 2 in order to let the sound reach the microphone capsule 8.
  • the remote control switch 5 operates as follows:
  • the contact spring 17 is permanently in contact with the contact disc 26, as can be seen particularly in Fig. 3. In the rest position (see Figs. 4a and 4b) the contact disc 26 does not engage any one of the contact springs 16A, 16W and 16R.
  • the knob 7 can be conveniently shifted by the thumb. Any double switching is completely excluded, and moreover one can get from one working position into another only through the rest position.
  • a remote control switch having three working positions for connecting the sound transducing appliance for recording, reproducing-and repeating, respectively, and a rest position for switching said appliance 00?
  • said switch comprising, a casing, a guiding member having guide slots radiating from a center corresponding to said rest position in three angularly spaced directions corresponding to said working positions, respectively, a control member including a knob and a bolt secured to said knob, said bolt being shiftable from said rest position along said guide slots into any one of said working positions, a return spring operatively connected both to said bolt and to said casing and biasing said bolt automatically from the said repetition position back to said rest position whenthe control knob is released, and locking means detaining the said bolt in said reproducing and recording positions, respectively, the control knob when operated overriding said locking means.
  • the locking means comprises a two-pronged pawl pivotally mounted in the casing, the prongs of said pawl being chamfered to a wedge shape, and a leaf spring attached at one end to the casing and having a second arcuate end engaging said prongs, the prongs of the pawl embracing said bolt and the arcuate end of the leaf spring contacting the inner wedge faces of the prongs in said rest and repetition positions, and contacting the outer wedge faces of one of said prongs in said recording and reproducing position.
  • said guiding member is a guide plate fixed to said casing, said switch further comprising a contact disc secured to said bolt at its end opposite said knob, two guide discs attached to said bolt on both sides of said guide plate and contacting the same slidably, said guide discs holding said bolt perpendicular'to said guide plate in any of said working positions and in said rest position, and a compression spring abutting against one of said guide discs and against said contact disc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Push-Button Switches (AREA)
US656106A 1956-12-19 1957-04-30 Hand microphone for sound transducing appliances Expired - Lifetime US2933566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH345471T 1956-12-19

Publications (1)

Publication Number Publication Date
US2933566A true US2933566A (en) 1960-04-19

Family

ID=4507267

Family Applications (1)

Application Number Title Priority Date Filing Date
US656106A Expired - Lifetime US2933566A (en) 1956-12-19 1957-04-30 Hand microphone for sound transducing appliances

Country Status (4)

Country Link
US (1) US2933566A (fr)
BE (1) BE559438A (fr)
CH (1) CH345471A (fr)
DE (1) DE1051524B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035132A (en) * 1958-07-25 1962-05-15 Akustische Und Kino Gerate Ges Switching device combined with sound transducer
US3073911A (en) * 1960-05-11 1963-01-15 Bell Telephone Labor Inc Telephone set
US3196223A (en) * 1960-12-06 1965-07-20 Robert E Hartsock Selector switch with scanning motion translation means
US3822372A (en) * 1972-11-30 1974-07-02 Ibm Switching apparatus for single button hand microphone
USD266242S (en) 1980-04-14 1982-09-21 Gentex Corporation Microphone housing
US4431925A (en) * 1982-08-11 1984-02-14 J. I. Case Company Battery jumper cable assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282089B (de) * 1965-07-13 1968-11-07 Sennheiser Electronic Handmikrofon fuer Diktiergeraete, deren Betriebszustand ueber die Kapazitaet der Hand des Bedienenden geschaltet wird
DE8712810U1 (de) * 1987-09-23 1988-02-04 Freitag, Wolfgang, Dipl.-Ing., 2351 Trappenkamp Einrichtung für ein Gerät zur Aufnahme und/oder Wiedergabe von Informationen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1158083A (en) * 1914-02-25 1915-10-26 Harold E Stout Direction-indicator.
US1584334A (en) * 1923-07-14 1926-05-11 Antone Homa Electrical switch
US2452830A (en) * 1945-02-28 1948-11-02 Edison Inc Thomas A Combination microphone and control means for dictating machines
US2611037A (en) * 1949-04-28 1952-09-16 Soundseriber Corp Dictating machine with combined hand microphone and control means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605392C (de) * 1933-09-01 1934-11-09 Siemens Schuckertwerke Akt Ges Schalter mit geradlinig bewegtem Schaltorgan fuer das Schalten mehrerer Stromkreise in einer vorbestimmten Reihenfolge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1158083A (en) * 1914-02-25 1915-10-26 Harold E Stout Direction-indicator.
US1584334A (en) * 1923-07-14 1926-05-11 Antone Homa Electrical switch
US2452830A (en) * 1945-02-28 1948-11-02 Edison Inc Thomas A Combination microphone and control means for dictating machines
US2611037A (en) * 1949-04-28 1952-09-16 Soundseriber Corp Dictating machine with combined hand microphone and control means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035132A (en) * 1958-07-25 1962-05-15 Akustische Und Kino Gerate Ges Switching device combined with sound transducer
US3073911A (en) * 1960-05-11 1963-01-15 Bell Telephone Labor Inc Telephone set
US3196223A (en) * 1960-12-06 1965-07-20 Robert E Hartsock Selector switch with scanning motion translation means
US3822372A (en) * 1972-11-30 1974-07-02 Ibm Switching apparatus for single button hand microphone
USD266242S (en) 1980-04-14 1982-09-21 Gentex Corporation Microphone housing
US4431925A (en) * 1982-08-11 1984-02-14 J. I. Case Company Battery jumper cable assembly

Also Published As

Publication number Publication date
CH345471A (de) 1960-03-31
BE559438A (fr) 1957-08-14
DE1051524B (de) 1959-02-26

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