US1920628A - Combined radio and phonographic recording and reproducing system - Google Patents

Description

Aug. 1', 1933.

COMBINED RADIO AND PHONOGRAPHIC RECORDING AND REPRODUCING SYSTEM original Filed June 26, 1922 J, B. BRowNlNG 3 Sheets-Sheet 1 GSM l t@ effi/ "`\l T S2) l VENTOR. B5 'l "5 Aug. 1, 1933. J. B. BRowNlNG 1,920,628

COMBINED RADIO AND PHONOGRAPHIC RECORDING AND REPRODUCING SYSTEM Original Filed June 25. 1922 3 Sheets-Sheet 2 ugl, 193341L J. B. BRowNlNG 1,920,628

COMBINED RADIO AND PHONOGRAPHIC RECORDING AND REPRODUCING SYSTEM Original Filed June 26 1922 3 Sheets-Sheet 3 S Figi.

Patented Aug. 1, Y 1933 UNITED STATES l 1,920,628 COMBINED RADIO -AND PHONOGRAPHIC RECORDING AND REPRODUCING SYSTEM :John Bailey Browning, Camden, N. .'.A

original applicatio June 26, 1922, serial No.

570,906, now Patent No. 1,743,706, dated January 14, 1930.v VVDividedfand this ,application February 18,1927. Serial No. 169,306

4v9 Claims.4 (Cl. 179-100.11) o i y are hereinafter fully brought `out inthe followz. A

An object of this invention is to combine into a portable cabinet` the most desirable reproducing characteristics of the best' constructions known to the phonograph and radio arts.

Another object is to provide a radio-telephonograph having a cabinet with radio telephone receiving and transmitting circuits, sound recording and sound reproducing means, including al comparatively large sound amplifier of audible sound impulses therein; and to provide in such a machine suicient space vin any desired part within thecabinet to mount a radio antenna or pick up, .in such amanner that it may be -directionally positioned within the cabinet and withl respect to the `sound outlet or outlets of the cabinet movable either about parts of the apparatus or'otherwise. i

And further objects arev to` provide in such a machine an improved sound conduit having a continuously curving soundv passage of continuously increasing cross section and mounting therefor;` to provide a neat, convenient, compact portable cabinet within which are arranged vthe electric loud speaking receivers,rloop antenna, radio set, electric transmitter, batteries tov operate the set, transmitter and receivers ormeans to adapt the house` electric circuit for the same purpose, all the wiring, andthe elements oi the phonograph and radio set requiring an operator, being conveniently positioned for operation without movement of the cabinet or lany portion thereof. l

A still further and important object is to provide an improved system in which aV radio receiving set, a phonograph and a sound recording means `are so combined into a unitary scheme whereby the system may be used in any one or more of the following waysz (a) `As an ordinary radio receiving set,

(b) As a radio recording means,

(c) As an ordinary phonograph,

(d) As a phonographin which certain parts ofthe radio` receiving set,l notably the amplifier and the batteries canbeV utilized for increasing the volume of the phonographic record reproducing means.

(e) To transmit ultra audio impulses and audible sound impulses simultaneously,

(I) To broadcast ultra-audio impulses `while recording audible sound impulses simultaneously, and l (g) To phonographically record a radio-reproduction on arecord tablet while it is being listened to. 1 f l r Further objects and Vdetails of the kconstruction and mode of operation of V.the invention ing description, especially when read in` conjunction with the accompanying drawings, in which -Y 4 Figure l is a vertical sectional view of an illustrative embodiment of my invention takenk along line 1-1 'of Figure. 3. f C Figure 2 is a horizontal section taken along line 2-2 of Figure 3. 1 a

vFigure 3 is a sideview Figure 4 is an enlarged plan ,vew ofthe -double goose neck, carrying the mechanical sound recorder or reproducer and the electrical receiver or transmitter. l Figure 5 is an enlarged side view-of the same 70 elements. 1 l Figure 6 isa vertical section of the-mechanical sound recorder or-reproducer' andthe elec-v trical receiver or transmitter, lshowing the jder tails of construction. f l j l 75 Figure 'L is a diagrammatic representation lof the electric amplifier and rits connections. Referring to ,theidrawings one embodiment of this invention is shown in the form of a console or'table cabinet 50 which may b evaried lfor 80 other well known uprightgforms.`

The cabinet is provided with `a lplurality : 0f resonance chambers 52 and 56 positioned ,Y between the walls of thecabinet andthe walls of the amplifier, each of which maybe subdivided .with smaller chambers 53, 54, 57 and 58, within "11 which may be placed various Velements `of fthe machine and'radio set without materially affecting theresonance of the-cabinet. Between'the two chambers 52 and 56 and beneath the cover 90 60 is Vprovided a central chamber 55, which "l comprises the outer portion of the sound amplilying means not including the radio ampliflers of the set..

The .inner amplifier includes a hollow vibratoryv portion 65, which is carried by a hollow 4non-vibratoryv connection 66', which communicates with `a minor hollow tapered portion 4, a plurality of hollow tapered` transversely extending portions 164 and 164a are carried by,- com- 100 municating with and movable with respect tothe portion 4,and a plurality of hollow extending` tapered portions "l1 and 72 vare carried Yby and communicating with the nonvibratory connection 66,` all of which including 4 and its con- 10 nections, lead to the common outlet of 65.1 4' and its connections are arranged to swing `in both a vertical and lateral plane above the panel 92, turntable 7 and record 6,` while 65 vand its connections are arranged to swing n` both vertical and lateral planes below the panel, turntable and record.

A substantially heavy portion 66a is carried l at the rear of 66 to counterbalance 4 and 66 with Vplate 5B, diaphragm 5C, :gasket 5D and stylus bar 5F, all being of ak well known form with thev stylus bar 5F reversed in a well known manner.

The diaphragm 5C is removed from a similar reproducer 5 and the cap is also removed lfrom av `Baldwin Yloud speaker Vor telephone receiver unit --of Well known form, removing the outer casing Y 162A.

The magnet 162B of the Baidwin unit is ypassed vthrough the ring or cap 5A, the vdia- Vp'hra'gmcasi'ng 162F of the unitresting against the lip of the cap 5A, after 'which the gasket Y '5D :isireplaced `and the back 5B secured to kthe cap 5A and the stylus bar 5F is waxed or secured to --the diaphragm 162C of the unit in a well 'known manner.

The element 5 is connected to the tube 164a `'and the element 162 is connected toy the tubethe and sound is then reproduced mechanically from y'either V-element5 or 162. Y

The leads 162K and 162L`are provided with -clips V162W! and vmaybe clipped or switched to rthe terminals J2, J3, J4 or J5 of the input circuit vof theelectric amplifier illustrated in Fig. 7 and vwhen lso connected the element v162 cooperating Y y with the loud speakers 1675, maand 16e through ,the amplier will reproduce signals of low frequency vf rom -a phonograph record electrically. By switching the element 162 from the input Vtothe output of Athe electric ampliiierv and connecting to J1Y a tunedV antenna circuit the lelement 162 willreproduce ultra audio signals from a distant station at audible frequencies. fBy switching the element 162 back into antenna circuit in cooperation with a record 6, the relement 162 with its connections Will transform and transmit the phonograph'record at ultra audio frequencies to a distant station after --turning -down the rheostat's R".

By again switching the element l62;back into lthe output of lthe electric amplier, turning up the rheostats R", and bringingthe vstylus V5H in cooperation with a tablet the detected high frequency may be 'recorded phonographically in va well lknown manner.

If a Brandies or other well known radio telep'hone receivers are used in place of the Baldwin unit, #the cap is unscrewed and the receiver unit lstrapped or secured to the element 5 -and assembled yas Abefore described. `It is obvious that a carbon transmitter button may be attached to the bar 5F `as has -been widely advertised.

It will be noted that 4 and 65 with their con- -nections form a continuously curving tapering Vsound amplier of continuously increasing cross section avoiding all sharp turns, thus giving all the efficiency of a large cumbersome straight lof the reproduction of sound at will on either side vof the cabinet. t

Doors 82, 82, 83. and 84 are also provided for the chambers v52 and 56 for the same purpose as the other doors. f

The dividing walls 90 and 91 arranged between the chambers 52, 55 and 56 are semitransparent or conductive to'sound vibrations, each of which may be provided with sound openings 96 through which sound may pass into the adjacent chambers or sound passages and then into the atmosphere. i

The panel or motor board 92 may be divided into a major portion 92 andfminor portions 92' and 92"the minor' portions being easily `removed while the major portion may-be hinged at 92a or pivoted to thecabinet and removable in a manner well known in the talking machine art.

The radioantenna or pick up device of -ultra-. audio impluses shown in vthis modification, which may be varied, includes a square frame 85, withl four cross pieces V86 one at veach corner, around which is wound, the antenna wire 87, the desired number of turns.v The frame isv also provided with a pivot 88 which fits into asocketjbearing 88a in the panel orfmotor board 92, permitting the antenna as a unit toswing freely .through the openings 93 and/94, provided in theppanel 92, around the -motor compartment 95, sound amplifier and on both sidesfof said'panel.

The motor for' the support 'shaft '7a is contained within the compartment 95 which may be arranged in any convenient position beneath the board 92 within the chamber 55. g

The yoke 68 on which is mounted the portion 66 is provided with two lateral varms ,'76 which are provided Vwith. pivots at the end of each arm Vand which fit into bearings arranged in the yball portion 63 of 66 which permits vertical movement of 4 and 66, lateral movement being vprovided by the pivot 69 of 68, which fits into the pivot bearing 69a, the support being positioned in the chamber 55. f

The ball portion v63 of 66 is arranged to work in a socket bearing 64 secured to the panel 92.

The cover 6 0 is hinged to the'cab'inet 50 movable. to .permit adjustment of the radioV and phonograph apparatus carried by the panel.

The cover 60 v is provided-with la resonant chamber 61 formed by a partition-la'within which may be arranged a radio circuit including an antenna, all of which may be conveniently operated when the lcover is raised.

'Sound waves that are projected from themelchanical or electrical reproducer positioned in known manner, removing the turntable 7 and `lifting the antennathrough the top.

'.4 and A65`lwith their connections may be removed from the cabinet as a unit by-disengag ying the pivot 69 from 69a and passing the unit -impulses are first produced by operative contact of the reproducer 5 with the record 6 and are discharged into `the sound passages 164a and 164 to the transmitter 162, or the transmitter may be brought directly into contact with the record in a well known manner, where the impulses are transformed into electric impulses and pass through Y,the radio circuit illustrated in this and 'the parent application, finally being broadcast as ultra-audio impulses to a distant station, while the audible sound impulses are being' magnified through the sound amplifying passages of the machine and are delivered therevfrom directly machine. f y u Second, tobroadcast radio or ultra-audio irnpulses while'r'ecording audible 'sound impulses upon fa record tablet, yfor `future reproduction and possible broadcasting.l The element for producing primary sound vibrations lor the artists are positioned so as 'to phonographically record sound in a well known manner, thesound waves or audible sound impulses passing through the sound `passages of the machine to the tran@- mitter 162 where they are transformed/into radio oru1traaudio impulses in a well known rmanneigand atthe same time to reversely actuate a reproducer of any well known* form, to record sound Waves upon the recordtablet for future reproduction and probable transmission at either or both audio or ultra-audio frequencies.

Third, to listen to and simultaneously record the audible sound waves yupon atablet 6,. The doors of the cabinet are adjusted to permit the delivery of sound from the amplifier or the chamber 55 and the reproducer` or recorder 5 is arranged to record the audible soundwaves delivered into the sound passages from the electro- magnetic reproducer 165, 166` or 163 upon a tablet 6 while sound is being delivered from 165, 166 or 168 directly to listeners in the vicinity of the machine, as above described.` Since the element 162 hasa `diaphragm it may be used instead of element 5 as a` recorder in this mode of operation. i v

Fourth, the co-operation of the electric `amplifier and the phonograph to function simultaneously in co-,operation with a recordtablet. To co-operate the phonograph reproducer and the radio amplifier illustrated in Fig. 2, the reproduced 5, illustrated in Fig. 3, is rst positioned to function with the record 6, the transmitter 162 being positioned on 'the tube 162, Fig. 4, which may be of any well known form provided with or without a stylus for direct contact withthe tablet 6 in awell known manner,

-produced by 5 passing through `the tubes y164i and .164(1. The transmitter 162, may be Wired to a'fplugandcut, into thefjack J", illustrated method is well known.`

to listeners in thevicinity of the` in-Fig. 2,'fin' place of thetelephone receivers, it

being understood that otherjacks similar to` J may beY connected'to* the input lcircuit of either of the otherfaudiotransformer, T",`T\. or the detector V when it is' desired toluse the transmitter ina-'circuit of an electric amplifier. AIf jacks are'n'ot used Vthen batterclips* may be Wired to the transmitter leads andclipped. to the input terminals of the desired circuit in a well known manner.

While the foregoing descriptionlapp'lies vto the circuit illustrated in Fig. 2, itis understood that it may -be-applied to other radio or electric circuits if the use of such isl esired, as this While three receivers 165, 166V and 'V168 are shown communicating with the conduit 66 any ynumber of receivers each having different tonal characteristics or head phones may be connected in the circuit illustrated and one of th'e receivers 165 may be wired to the transmitter 162 ina separate circuit to permit vlisteners to hear the phonograph while others listen-in` With the head phones to radio signals at the Sametime `from the 'same cabinet.' In Fig. 7 the element -162 is shown hooked up as a loudspeaker in `series with the other loud speakers 165, 166 i and 168,

other series of any desired number mayl `be hookedlup in paralleland used to increase the Volume as'desired all usinga common amplifier. The element 5 of the unit 4, 161,`161a,' 5 and 162 includes adiaphragrn and stylus, the element 162 of the unit includes'electric mechanism and a stylus, the diaphragm or thelelectri'c mechanism may be selectively operated for reproduction by manually moving either element 5 or 162 into or outoi lcooperation with the `tablet 6. .l

Arranged within Atheicabinet in a manner not to interfere with its resonance isa radio` telephone receiving circuit the diagram of which is shown in Fig. 2.` 4

This hookup ymay be modified accordingto Adesire `for either transmission or reception or substituted for any other Awell known receiving or transmittingy circuit, `either line4 or radio, and

it may be built up of a number of separate units `which `may be arranged` to meet the'diiferent requirements...V The hookup may include a battery as a source of energy or be directly connected with the electric light lcircuit with the proper means contained within the cabinet to make it suitable for the purpose. I

In this diagram there is'only one adjustment Vrequired to tune the set to the proper`wave length. VThis adjustment is accomplished by means of a variable condenserV across the loop antenna and-.given a variation sufficient to tune `in any of the radiophone broadcasting stations justed` to receive thetransmission from a radio broadcasting station with maximum intensityfit is merely 4necessary to turn on the switchS when the station is broadcasting orytransmitting, to bring in speech and the music that is being transmitted. This feature makes it a very' easily Voperated radio set.

AIn the radio` amplifier are incorporated, two stages of radio frequency amplification, which ',may beincreased if desired, andthree `stages'of l loud talker with maximum eiliciency. VIn, this .so Y

diagram J represents a single circuit-jack, for the connection ofi the loop aerial to the set which is made by means lor a plug.V J" is a double circuit; jack to cut` in the second step of audio frequencyif it is desired to use the transmitter 162 or to plug in a pair of head phones for long distance reception.' K is a variable condenser shunting 'the loop aerial for the pur-l pose ofvtuning the circuit to the proper wavelength, while fL is the grid leak and K the grid ycondenser the capacity of which depends upon the type of lvacuum tube detector used; it is generally between .00025 and .0005 microfarad.

vT' represents the radioV frequency transformers.l

V represents the vacuum tubes of the radio fre,- quency amplier. V is the detector tube. Vl the amplifying tubes of any make and V" the 5 watt powerrtube upon the plateV of which a veryhigh voltage may be applied. R and R" are respectivelyv the rheostats of the radio and audio amplifying tubes and R the detector tube. `A represents the A battery which should be of suicient size to supply all of the tubes andthe eld of the loud talker, for sufficient length of time without recharging. C and C are the grid batteries used on the plates of the last three tubes. B is the B battery which for maximum efficiency should have a voltage of 200 to 300 volts with the taps for the detector, the radio amplifier and the two rst audio amypliier tubes. The grid leaks shownacross the secondary windings of the audio frequency Atransformersare necessary only if a high voltage the plate of the'last tube, and the positive ofA the B battery, the eld coils being in parallel with the laments of the tubes. The transmitter' 162 is not shown in the diagram but may be connectedin a circuit in any well vknown manner for either transmitting ultra audio signals from a record tablet. The loud speakers are shown mounted on the heavy non-vibratingv portion 66a communicating with the passagewhich leads to65 or 4. If -it is desired, either of the loudspeakers may be placed on the small tubes 164 or l64a and wiredk as desired.

A radio 'selection may be tuned in andthe phonograph Vreproducer 5 arranged to reproduce a properly synchronized record.

'I'he advantage of this is that if a dance program is being received from a distant station and -itY fades out, which it frequently does, the reproduction of the phonograph may be given fsulicient volume from a similar record to congraph will predominate.

The subject matter of this application has been carved out of a parent application Serial No. 570,906 led June 26, 1922, now Patent No.

11,743,706, Jan. 14, 1930. Reference is also made Ato the following applications: Serial No. 23,569

nled4 April 16, 1925; Serial No. 170,794 filed Feb. 25, 1927; and Serial No. v309,793-11led Oct. 2, 1928; all of which have been carved out ofV the same parent case. Each one of these casesjincluding the parent application. contains claims covering one or more of thel divisiblefeatures of my invention, the claims of the present application having been drafted ^with a view to cover .both broadly and specically a combined radio` and phonographic .recording and reproducing system.r

What I claim is as follows: ,A 1. An apparatus of the class described', Vcomprising aradio receiving set, an electrical reproducer for phonograph records, `an audio frequency amplifier, electric circuits connecting said y amplifier with the aforesaid devices, a loud speaker electrically'connected to the output of said amplifier, phonograph record recording means, and means operatively connecting said loud speaker and said recording means whereby sound produced by the loud speaker'may be simultaneously heard'and recorded.

2. An apparatus of the class described, cornprising a radio receiving set, an electricahreproducer for phonograph records, an'V audio-frequency amplier, electric circuits connecting said amplifier with the aforesaid devices, Ya 'loud speaker electrically connected tothe output of lsaid amplifier, v phonographic record recording means, and acoustical means connecting `said loud-speaker and said recording' means whereby sound produced by the loud-speaker may be simultaneously heard and recorded. y

3. A device ofthe class described, comprising a radio receiving set, `an electrical reproducer for phonograph records, anaudio-frequency amplier common to said reproducer andreceiving vset and switching mechanism for connecting said amplifier for operation with either, a cabinet in which said apparatus is mounted, an open sound chamber in said cabinet, a loud-,speaker electrically connected to the output of Said amplier and mounted in said chamber, whereby sound produced by the loud-speaker may be simultaneously heard and recorded.

- 4. An apparatusv ofthe character described, comprising a radio receiving set, an electrical reproducer for phonograph records, an audio frequency amplier common to said reproducer and receiving set, switch mechanism for connecting said amplier for operation with either said reproducer or receiving set, a loud speakerconnected to the output of said amplier and phonographl record recording means mounted in position to 'be actuated by the Sound waves produced by said loud speaker, whereby sound produced by said loud speaker may be simulta-A neously heard and recorded. v-

5. An apparatus of the character described, comprising a radio receiving set, 'an electrical reproducer for phonograph records, fan audio lfrequency amplifier common to said reproducer and receiving set, a switch mechanism for connecting said amplifier for operation with either said reproducer or said receiving set, a loud speaker connected to the output of said yamplifier, phonograph krecord vrecording ymeans and acoustical means connecting saidV loud speaker and said recording means whereby sound pro- -Y ving set, a combined electrical phonograph reproducing and recording device, an audio-frequency amplifier having both an input and an output circuit and means for connecting said receiving set or said device to said input circuit or said receiving set to said input circuit and said device to said output circuit.

7. In a combined radio and phonograph re cording and reproducing system, a radio re-l ceiving set, a combined electrical phonograph reproducing and recording device, an audio-frev quency amplifier and a loud speaker, said audiofrequency amplifier having an input and an output circuit and connections for connecting either said device or said loud speaker or both to said output or said receiving set and device to said input circuit.

8. An apparatus of the class described, comprising a radio receiving set, an audio frequency amplifier, electric connections between said reandY acoustically connected to said recording means, whereby soundproduced by the loud 1 speaker may be simultaneously heard and recorded. g I y JOHN BAILEY BROWNING.

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