US1293363A - Phonograph. - Google Patents

Description

F. A. DE LAY. 'PHONOGRAPH.

APPLICATION FILED OCT. 19. 191

PatentedFeb. 4, 1919.

2 SHEETS-SHEET 2.

FREEERIC A. DE LAY, OF CHICAGO, ILLINOIS.

PHDNOGBAPH.

Y '0 ulZ whom it may concern:

Be it known that I, Fiuimiuio Di: LAY,

. a citizen of the United States. residing at Chicago. in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in lhonographs, of which the following is a full, clear. concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to iinproveineiits'in phonographs or machines for the reproduction of sound, and has for its object the provision of improved mechanism for automatically repeating the reproduction of a record and for automatically stopping the machine after the reproduction has been repeated a predetermined number of times.

In carrying out the objects of my inven tion I contemplate the provision oi electromagnetic devices which are automatically operated by the machine when the reproducing stylus assumes certain positions with respect to the record. I have shown in the accompanying drawings the device of my invention applied to a phonograph wherein the tapered tube or tone arm is ar ang'cd to move only in a horizontal plane and wherein Y the tapered tubeis connected with a sound grooves of the record.

Tam aware of the fact that repeating mechanism has been employed in connection with a phonograph, but such mechanism has been found commercially impracticable for several reasons; first, that the mechanism is too complicated and expensive in view of the result or object for which it is intended; second, that it cannot be applied to the machinesnow in use or on the market; and third, that such mechanism cannot be employed for the reason that harm will result either to the sound reproducer or to the Specification of Letters Patent.

Patented Feb. at, 15919.

Application filed. October 19, 1917. Serial 150. 197,386.

aiatically stopping the machine after a production has been repeated a certain predetermined number of times this automatic stop mechanism need not be employed it it is desired to dispense with the same.

, The entiremechanism for repeating and for automatically stopping the machine after a record has been replayed a number of times mounted directly onto the motor board and is arranged so that it can be applied to any standard phonograph. One of the important features of the present iiivention resides in the provision of an-electric switch, either mounted on the tone arm or having some actuating element mounted on the tone arm, the purpose of the switch being to close an electric circuit when the tone arm reaches a certain position with respect to the record and to maintain the cir- 115 cuit in closed condition until the tone arm assumes a certain other position with respect to the record where a second operation of v the switch takes place and the circuit is broken.

Another important feature of the present invention is the provision of an improved arm arranged to lift the reproducer from the record when the repeating operation takes place. This arm is constructed. and arranged so that it can be placed upon and removed from the machine whenever desired without the inconvenience of manipulating any screws, clamps, or similar devices.

in view of the fact that the other improved features of the present invention may be understood more clearly by reference to theaccompanying drawings attention is directed to the drawings wherein:

Figure 1 is a fragmentary perspective view of a phonograph provided with the reproducer of my invention;

Fig. 2 is a detail side elevational view of the tapered tube and sound box-crook of Fig. 1 showing the repeating mechanism mounted. thereon;

Fig. 3 is a fragmen ry plan view of the motor board shown in L ig. 1 illustrating the electric circuits employed for effecting the necessary openation of the elect-rormagnetic devices; I

Fig. 4 is an enlarged detailview f the automatic stop ratchet shown in Fig. 3;

Fig. 5 is a, vertical" cross sectional view taken along the line 55 of Fig. 2 looking the direction indicated by the arrows;

Fig. 6 is a detail View of the electro-mas crook 15.

netic device lor applying the brake to the turn table aftera record has heen repeated a certain predetermined number of times;

Fig. 7 is a horizontal 0305 5 wctional view taken along the line 7? o1 l g1. looking in the direction indicated b the arrows; and

Fig. 8 is a fragnmntarv jwrspia-tive view of a modified form of switc'nino mechanism which may he employcd for controlling: the operation of the repeating; elei"tic-magnet Similar characters oi? reference refer to similar parts throughout the several views. Referring first to Fin. 1, ll illuntratca the using or frammvorlr which uupports the motor board 10. This motor lnlard in the class of phonographs r seated by l carries on its underside re :1 Jury motor for rotating the turntable ll. upon which the record to be reproduced is placid the turntable being mounted upon and. connected with its drive shaft in auv unit: hie man ner. The tapered tulle tone arm in ahmvn at 13 extending dowrrwa (llfi at t and communicating with the sound cha in or horn, if the, phonograph he one em dovin a horn.

arrznigrci to owing; i,

c The tone a rm is i horizontal plane in the usual manner ai is provided at its free end with a crook or gooseneck 15 the outer end oi which carries the sound box or rq'rroducer Illi, l' hc crook 15 is arran 'ed to swing in a vertical plane about thepoint 17., shown in l ic Q there being a pivotal coi'mectien between the crook and the tapered tulle. "l he reproduccr is arranged to carry the usual reruns.lucinn' stylus shown at 13. B ievingringr the crook 15 in a COUHlLGYClOCl-LWlHQ direction (Fig. 2) the stylus 1.8 is moved out of enrntgement with the sound ,9; 'oovcu of the record shown at 19.

Mounted around the tapered tube 13 is a b acket 20 which carries the clcctro-niannets shown at "i l hrach'et 2'20 may be constructed in any desirable manner and may be attached to the ttpercd tube l -l in any convenient manner. l the drawings: 1 have illustrated the hrachct Ell as being! stumped from sheet material and provided with the arms shown at which extend around the tone arm and are roimccted at 23 to hold the bracket nccurelv in place. On account of the OHtWH'tl ta per oi the tone arm therei ma v be a tendency for the hraclml to move outwarclj' toward the rcalricted portion of the arm and to prevent lilltll movement the bracket 2G is 'irovidcd with the forwardly extending arm E Z-lwhich abuts against the front cud of the tone arm or the crook 15. 'lhi armature For the electic-magnets 21 is formed hv the lever 26 which extends over the forward end of the tone arm and under the 'li'rni'rl, end of the There is no mechanical conucctinn hold the Ll'lll in plane other necessary to reproducing element oil the phonograph without any lnCOllYGHlQHiX. To hold llzc arm 26 in place no as to p rcrent lateral movement thereof the forwardly ctdcudingr arm ifl of the bracket 20 may he provided with an upwardly extending retainer shown at 27. The. fin-ward end of the tone nrin r5,- forms, a fulcrum for the lever 2c no t upon movement of the letthand end ol the lever (Fig. 2) in a downward, dircctioi'i the eroolr 1.5 will be swung upwardly to cause the reproducing stylus 18 ot the reprodjuo-r to disciunige the record.

Extending downwardly from the hraclnit 20 is an arm to which. is pivoted at :29 a switch member 30 (Fig. 5i li lllrl :nvilch. member carries an insulated pin or ciiml'ac. 31 and is provided w"h a pair ole imlcn'n-- tions shown at in. Fig. 7.

lip

l" llcnc lildcntatious are arranged to ciiii wim-ite with and assume a position either on one nirhor the other of the projections shown at iiri thl carried by the downvunfdly extcndimr arm 28. The arm. 28 also carries the contact, ll adapted to coiipe ate with the contact ill cal ricd by the switch mcmbein Carried by the base board in graph is 2- plate 35 to which i 36 a stop lever 37 provided who a atop ill? and extending forvardly under the lam table 11 to cooperate with an index plate shown at 4:0. The front end of the l vcr 'IT may be provided with a handlc piccc shown at ell to facilitate setting of the levcr. in view of the fact that the inner sound g'illuvtha oi phonograph records terminate in dii'icrout places with respect to theccntcra ol the records it is necessary to adjnut the atop lever 37 for each record played and lo l'acil' late this adjustment the index plate ill provided which carries, certain indicia shown in Fig. 3. The records are nmrli l with ccrtain indieia (:(i Ii'Ospiihiliilg will! the indicia carried by the plate in no that the stop lever 37 may be set to its correct ponil ion each time a. record is played by icltintif the lever to the charactm on the plate all) corresponding to the character ma rhed on the record.

Pivotcd lo the plate 35 at 52 i; a second lever 43 provided with a handle piece ll to Facilitate rotation of the levcr about rls pivot 42. The lever lii and the lever arc pivolrd to the plate 35 in a manner f ll 'll that a certain amount oi" friction must be ltlll 7 construction thereof.

the stud i5 is asleev'e 46 attached toor forming part of a ratchet wheel 47. The ratchet wheel 47 is made of n'iaterial such that it permits the flow of current therethrough. Extending through the ratchet t? is an insulated plu; 48 which at certain predetermined times is arranged to engage the two brushes shown at 9 and 50. To facilitate setting of the ratchet J or rota tion of this member about the stud :5 the sleeve 16 is rigidly connected with the knurled linger piece 51 held in place by the screw 52.

The lever 43 has two upwardly extending pieces 53 through which extends a plunger 5% having pivoted thereto a pawl 55 arranged to cooperate with the ratchet i? to advance the latter one step each time a record. is repeated. To hold the plunger 5i normally in the position shown in Fig. the spring 56 is utilized which acts between one of the upwardly projecting pieces 53 and. the. pin 57 carried by the plunger.

Extending outwardly from the underside of the turntable 11 is a brake lever 58 which cooperates with certain brake mechanism to hold or release the turntable 11. The par: licular braking mechanism forms no part of the present invention and it is. therefore.

thought umiecessary to go into the detailed it will sutlise to say "that when the lever 58 assumes the position shown in dotted lines the turntable ii is held against rotation and thatwhen it assumes the position shown in full lines the turn table is released and permitted to be driven by the motor.v

Mounted upon the base board of the phonograph is av plate 59 car 'ying the eleetie-magnets shown at 60.- The armature for the electro-niagnets is formed by the lever 61 pivoted to the plate 59 at 62- and having its outer end arranged to extend under the brake lever A spring 63 is employed to hold the armature 61 in the position illustrated in Fig. 6 so that when the lever 58 is moved to the full line position in Fig. 3) it will be retained in such position until the an mature 61 is attracted by the electro-magnets 60. The outer end of the armature 61 is beveled, as shown at 64, to permit move ment of the lever 58 from its dotted line to its full line position. Carried by the plate 59 is a spring 65 which acts upon l-llQlCNGl 5S and tends to move the lever from its full line to its dotted line position. or from its non-braking to its braking position.

Referring now to the circuit connections shown in Fig. 3, 66 designates a battery one side of which is connected by means of the conductor 67 with the downwardly extending arm 28. The other side of the battery is connected through the conductor 68 with a The brush 50 connects with the electro-magnets 21 through the conductor T0 and also connects with the chwtro-magnets tit) through the coiulu-ctor T1. 'lhe other side of the electro-magnets (30 is connected with the brush it) through the conductor T2. The conductor 73 serves to connect the contact 31 with the electro-magrncts '21.

The operation of the device is as follows; Assuming the several parts to be in the position shown in Fig. :3 and that a record is being played y the phonograph, the tone arm 13 is moved gradually toward the centcr oi the record. the stop lever 23? having heen set before the record is played. The switch member 30 will engage the stop :38 when the stylus reaches the end of the record or a groove immediately adjacent the inner groove. The engagement between the switch member 30 and the stop causes the former to swing about. its pivot to provide electrical connection between the contacts 31 and 3 the indentations 32 32 and the projection 33-33 serving to ai ford a quick electrical connection after the switch 30 has been moved a certain prede tern'iined amount relatively to its support ing arm 28. The closing of the contacts 3L and 34 provides an electric circuit as tollows: from the battery (it; through conductor 37, through arm through contacts 34 and through conductor 73. electromagnets :21, .-onductor T0, brush 50. through the ratchet 4?, brush through switch 69, and through conductor 68 to battery. Since the electro-magnets 21 are thus energized the armature lever 26 is attracted and the reproduccr lifted from the record. To swing the tone arm from its innermost position to its outermost position slightly beyond the outermost, groove in the record any suitable springmeans may be employed, such for example as the spring mechanism shown at T l. A very light spring is employed so that no detrimental result-s accrue to the reproducing qualities of the phonograph. The tone arm is swung outwardly. whereby the projection "55 of the switch member 30 engages the plunger 54 and is moved by s eh engagement 'to a position where the contacts and EH are separatedf After the DJ. switch 30 has been moved to the position illustrated in Fig. it cannot be swung about its pivot to a. further extent with the result. that the plunger 54" is moved in a direction toward the ratchet, wheel l? to advance the ratchet wheel one step. The breaking or separation of the contacts 231 and $54 ilci nergizcstlle elect-ro-magnets 2i with the result that the reproduccr is lowered and the stylus placed on the record slightly outside of the outer groove of the record. The. spring 56 then acts to return the plunger 5% to its original position. and in doing so feeds the stvlus to the outer groove in the record. i prefer to use slowly acting magnets for operating the armature lever :26 so that; the reprodurirer is brought into engagement with the record a eertain time alter the separation of the eontacts ill and 34:. The ohjeet of this arrangement is to permit; the tone arm to operate the ratchet wheel -17 hetore the reprodueer engages the record. The reeord is replayed in the manner ahove deserihed until the ratehet wheel li' has been advanred a certain nuinher of steps su'ttieien lo hrine' the insulating plug 48 in Contact with the hr shes -li) and 50 to preventthe passage or current through the ratehet whe l. .liy referring; to Fig. 3 it will he. ohserved that the insulating plugwill assume i posititui hetween the two hrushes after he plunger fi-l: has been aetuated live times. ilnw'et'ore. upon the l'i'tt'h actuation ot? the danger the eireuilv is interrupted between he hrushes :l) and 50. it the litth aetuaion ot' the plunger o-l the reprodurr is rougrhl' into engagement with the record.

l t l l as he 'einhetore deserihtah and the record repealed. When. however. the switrh n1emher ill) engages the stop 38 and closing ot the (Oliltltiis 31 and 1H; talies place the followin e eireuit will result: from battery (it; lhro eh eouduetor (li', rzontaets 31 and 34:, eontilu'l'or T3. eleetromagnets it. eondnetor Tl). eouduelor Tl. eha-troanagnets (it). and eonduetor 72 through switch to hatter). The energixation ot the eleetro-magnet (it) releases the hralte arm 58 with the result that rotation ot the turnlahle-is discontinued. es'inee the eonlals 34- and ill are rinsed and the -irenil1 is provided through the elta'troanagnets it the reprodueer will he lil'ted. as hereinhehne deserilaal. and will he returned to its original or starting position where toe eireuit tor the magnets 21 will he interrupted and the reprodurer permitted to engage the reeord whieh now is stationary.

'lhe resistanee ol the elerlro-magruet (i0 is sueh that when the hrushes l.) and 50 eontat'l with the ratrhei' wheel 1 T eirruil will he provided around the said eleelro-magnets and through the eleetromagnets it, When, however. the insulating plug: is interposed helween the brushes this short eireuit is not permitted and the eurrent is led through the eleeltar-magnet hi lhe linger piere 51. whieh is eonnerl'ed with the sleeve H and with the ratehet 1'7. is provided with suitahle indieia permitting: the operator to set the ralehel wheel so that a rertain reeord mav he replirved automati- -all v an) numher ol times and then the maelrine automati allv slopphd. By the eillplt) -.'tllt lilol' the swileh meehanism ol my invention it will he ohserved that a eirruit is closed when the tone arm raehes a rerlain position with respeet; to the record and that. the eirrnit, is ht'OlU'fl wh n the. tone a e i eaehes a. certain other ositien with a, short,

respect to the record. wish it to he run derstood that the s\\'il('l!i11 mechanism ma) l he varied to a eensiderahle extent without departing from the spirit of the present ill-- vention.

In Fig. 8 l have shown a moditied eon strnetion of electric switeh l'or eontr lling the eireuit ot the eleetro-mae uet lor li'tliu the reprtulueen in this li aure. Ht) illtts lrates a downwardly enteudiing' pin earrie l he lone arm and 81 a lever pivoted at 1- 12 to the have heard ol the plmnogrraph. The lever 81 has two upwardly extending arms H t and l arranged to he engaged h the pin t ll. Mounted adjaeent the arm 8 is a rontart spring H7: arrane'ral to eooperate with the arm till to produre an elertrir" "it"- euit. As the t ne arm n: whieh the pin no is eouneeted moves to the left the proieeiion 5:13 engaged and the lever ht swung ahont its pivot 82 until eonneetion is oh lained helween the spring i ant the arm H3 This eonneetion serves to elose the elvetj-rie eirenit' through the eleetro inagnets which in turn lilt the rtairodueer from the reeord. lhe tone arm then proeerals to swing in the opposite dr'eetion until the pin St) engages the arm l and moves the lever St in a l lireetion to cause tliseiu agi'ement. of thl arm as from the spring; 8.") to interrupt the cirenit. To provide a positive stop for the lever St in a erinnter-eloeltwise direelion (Fig. 2" the pin Ht; ma v he mounted on the hase hoard and placed in the wa v ol' movement oi the lever beyond a eertain. prtaletermiued amount. (hie ot the teeth of the ralehet wheel li' may he removed. it desired. and lherehv provide means wherehv a reeord may he eontinie ouslv antomalieally repeated until the ma ehine is stopped hy the operator:

llaviugg thus deserila-d my invention what t elaim as new and desire to seenre h v Letters Patent, ol' the l uited r lates is:

l. in a phonograph the provision ot a easing. a horizonlallx swinging tone arm,

a sound reprodueer ear ied h the t ne arm and arranged to engage a record. eleelromaenetir means 'l'or lilting. the reprmlueer onl ot engagement with the reeord. elerlrie switehine meehanism l'or eonlrollingr the operation of said eleelro-maenelie deviees 'arried h v the tone arm. and means for air luatinp; said switehine merhanism earried h v the easin e of the phonograph.

L. in a. phonograph the provision oi. a hase heard, a liorimnfallr t-L\\'i]l 1"it1 5 l' tone arm. a sound reprodueer :arried h the {one arm and arranged to engage a record. etertroana netie deviees for lilting the repr0- dueer out of engagement; with the reeord. eleclrie switehing nuehanisin t'or eontirolline the operation of said electro-inaanetie deviees carried hy the tone arm. and n'ieans for art uatin g said Switch ng mechanism ti ti carried by the base board of the phone graph.

3. In a phonograph'thc combination of a tone arm arranged to swing horizontally, a goose neck pivoted to the outer end of the tone arm, a'reproducer mounted on the outer end of the goose neck and arranged to engage a record, a lever carried by the tone rm for lifting the reproducer out of engagement with the record, an electromagnet. carried by the tone arm for actuating said lever, and an electric-switch consisting of two elements one mounted on the tone arm and the other on a stationary part of the phonograph for controlling the operation of the said electro-magnet.

4c. In a. phonograph the provision of a tone ar arranged to swing in a horizontal plane, a reproducer carried by the arm and arranged to engage a. record, electro-mag netic devices for lifting the reproducer from-the record, and a switch for controlling the operation of said devices, comprising an element mounted on the arm, two other elements on stationary parts of the phonograph, said switch being arranged to close an electric circuit through said electromagnetic devices when the element on the arm engages one of the other elements, and to maintain the circuit in a closed condition until the element on the arm engages the other of said two elements.

5. In a phonograph the provision of a tone arm arranged to swing horizontally, a

reproducer carried thereby and arranged to cooperate with the record to produce sound, electro-magnetic. devices for lifting the reproducer from the record, an electric switch for controlling the operation of said devices mounted on the tone arm, and a pair of switch actuating members carried by stationary parts of the phonograph, one of said members being arranged to close the switch and the other to open the switch upon engagement of the switch therewith,

6. In a phonograph the prov sion of a horizontally swinging tone arm, a reproducer, carried thereby and adapted to 006perate with the record to produce sound, electro-magnetic devices for lifting the reproducer from the, record, an electric switch for controlling the operation of said devices mounted on the tone arm, and a pair of ad justable switch actuating members, carried by stationary parts of the phonograph, one of said members being arranged to close the switch and the other to open the switch upon engagement of the switch therewith.

7.1a 3a phonograph the provision of a horizontally swinging tone arm, a reproducer carried thereby, and arranged to cooperate .with a record to produce-sound, elec- ..tro-ma "netic devices for lifting the 'reprodeceirom the record, an electr c switch for controlling the operation of said devices mounted on the under side of the tone arm intermediate its ends, and a pair of switch actuating members arranged to actuate the switch when the tone arm assumes certain positions with respect to the record.

8. a phonograph the provision of a reproducer arranged to engage a record, a record turn table, a brake for the turn table, means for lifting the reproducer from the record and for repeating the reproduction of the record, and electro-magnetic devices for actuating the brake lever to stop rotation of the turn table, said electro-magnetic devices being controlled by the said repeating means. i

9. In combination with a phonograph, a horizontally movable tone arm, a switch mechanism carried by the tone arm, an adjust-able contact arranged to be advanced-by the tone arm, a circuitbreaking member carried by the contact, a pair of brushes arranged to engage said contact, a lifting electromagnet mounted on the tone arm and connected with said switch member, a brake control electro-magnet, circuit connections for said switch-member, said brushes and said e'lectromagn'cts, and arranged so thatupon operation of the switch member the circuit through the lifting magnet may be broken, and so that when the circuit breaking member is disposedbetwecn the brushes the brake control electromagnet will be (51161, gized'.

10. In combination with a phonograph a be advanced by the tone arm, a circuit breaking member carried by the contact, a pair of brushes arranged to engage saidcontact, a lifting eiectromagnet, a brake control electromagnct, circuit connections for said switch member, said brushes and said electromagnets, and arranged so that upon operation of the switch member the circuit through the lifting magnet may be broken and so that when the circuit breaking member engages the brushes the brake control electromagnet will be actuated.

11.A phonograph comprising means for rotating a record, repeat mechanism, a .stop mechanism comprising an electromagnet, a battery connected in series with said electro magnet, a circuitshunting said electromagnet, and means controlled by said repeat mechanism for opening said shunt circuit and thereby causing said electromagnet to actuate said stop mechanism. 12. A phonograph comprising a tone arm, a sound box pivoted on said tone arm, means for lifting said sound box relative to said tone arm, means for moving the tone arm across the face oft-he record being played, to the beginning of the record, an adjustable stop for detern'aining the time of operation of said lifting means and said movin meuns fu second aujnstubie stop for causing mid 'iifting means to lower said sound box when it has been moved To the beginning of ihe record. a stop mechanism, and means UMITYUUM! by said last named stop for eaushi stop niechanisn'i to operate after the ms been prayed any desired number 123. A )hma'imra 3h 00m arisin means fer iv Q o mm-m :1 record, a repeat mechanism comemg :m eieetremagnet, a stop mechanism aiming 2m eieetromagnet, a tone arm,

and n sm'iiieh ism actuated by the movemen I 2. arm for eiosing an eieeti'nilliifiii; musing neth (if said mag-- 15 nets" in. Witin my name the; 1917 hereunto subscribe of September, A. D.

IS A. DE LAY.

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