US2441893A - Phonograph record demonstrator - Google Patents

Description

May -18, 1948. K. RjMcKEE PHONOGRAPH RECORD DEMONSTRATOR Fi'l'edAug. 5, 1944 4 sheets-sheet -1 71. ||l1| if 1| Illa B i I. m ilml "MM" E Ullln H .w L

IN V EN TOR.

.K. R. McKEE n PHONOGRAPH RECORD DEMONSTRTOR May 18, 1948.V

Filed Aug.' 5, 1944 -4 Sheets-Sheet 2' May 18, 1948., K. la.I MKEEv 1 M 2,441,393

Y Y* rHoNoGRAPH REQQRD DEMoNsTRAToR 4 Filed Aug. 5,144-v v 4 Shasta-snaai 's' .441 A y `37H i :i n I l Y I'. l "l" Il AllmsNroR.

Sheets-Sheet 4 K. R. 'MGKEE PHONOGRABH RECORD DEMoNgTRToR Filed Aug. 5, 1944 In@ No,

' Myis, 1948.3`

mmww @tw/v. WQ @2W am u@ Patented May 18, 1948 A UNITED STATES PATENT., OFFICE 2,441,893 y PHONOGRAPH RECORD DEMONSTRATOR `Kenneth R. McKee, Chicago, Ill., assignor, by

mesne assignments, to Philco Corporation, Philadelphia, Pa., a corporation of Pennsylvania Application August 5, 1944, Serial No. 548,201k

13 Claims.

phonograph record demonstrator devices particularly adapted for use in the demonstration booths of stores handling retail sales of phonograph records, although not limited to such use.

An object of the invention isV to provide an improved form of reproducing apparatus including an enclosed casing wherein the customer may insert a' record for audition, but is not permitted access to the main voperating parts of the reproducing mechanism at any time. A further object of the invention is to provide an enclosed reproducing device of the character above described wherein the reproducing mechanism is automatically started by the closing of the casing thereof. A further object is to provide means for automatically unlocking the casing to permit withdrawal of the record therefrom after the record has been played. A still further object is to provide means for interrupting the playing of the record at any time and unlocking the casing for removal f the record at the will of the operator.

The device of the present invention is especially designed to overcome several difculties commonly encountered in retail phonograph record shops wherein prospective customers are permitted to try out records before purchasing, usually in a booth provided with a reproducing machine. `lI'hese reproducing machines may be of various types and lare especially subject to darnage and abuse whenoperated by customers who are unfamiliar -with the proper manipulation of the control devices or are careless in the operation of the machines, and in handling the records. As Aa result, reproducing devices are frequently damaged so as to give unsatisfactory demonstrations, or are put entirely out of order. Furthermore, it is practically impossible for record shops to detect damaged records when they are` returned to stock. Accordingly, record shops commonly are called upon to devote considerable time and expense in the servicing and maintenance of their demonstration booths, and suffer considerable loss by damage and injury to their stock Vof new records.

In carrying out my invention I provide an enclosed Vcasing having a vsliding drawer partially removabletherefrom so as to expose only the turntable of the reproducing mechanism for application or removal of a record. All of the other main parts of the reproducingmechanism, particularly the tone arm and its needle, are fully enclosed within the casing so as to be inaccessible-to the operator at all times. The operator may pull out the drawer so as to vplace a record on the turntable preparatory to playing the same, but in order to start the reproducing mechanism it is necessary to close the drawer to a fully locked position whereupon the reproducing mechanism will be automatically started and continued to completion of the record without further attention'of the operator. Upon completion of the record, other electrical devices are provided for automatically unlocking the drawer so as to permit the latter to be Withdrawn and the record taken off of the turntable, for replacement by another record if desired. I also provide a manualv control member on the exterior of the casing whereby the operator may discontinue the playing of a record at any time before its completion and permit the drawer to become unlocked for Ywithdrawal of the record.

The invention may best be understood by reference to the accompanying drawings in which:

Figure 1 is aplan View partially in section, showing parts of the enclosed cabinet for my device including .the sliding drawer which carries the turntable ofthe reproducing mechanism.

Figure 2 is a fragmentary front view of the sliding drawer and thev casing for enclosing the parts of the reproducing mechanism.

Figure 3 is a detailed view partially in elevation and partially in section, showing parts of the control mechanism for the tone arm used in conjuction with the turntable.

Figure 4 is a detailed view, partially in section, of fthe locking mechanism for the sliding drawer.

Fig-ure 5 is avdetailed'plan view partially in section, of part of the automatic control means for the tone arm. Y

Figure 6 is a detailed view in elevation of the mechanism shown in Figure 4.

Figure 7 is a diagram of the electric control mechanism of the device.

Referring now to details of .the embodiment of vmy invention illustrated in the several iigures, I0 indicates the upright front wall of a casing in which is slidably mounted a drawer l I. In the form shown the drawer is fitted in a compartment having side walls I3, I3 and a rear wall i4 as shown in Figure 1. The drawer has mounted thereon a turntable l5 of the kind commonly used for disc type sound records. The turntable is driven by an electric motor I6 through gearing of any' suitable forni wellknown to the art,

vdetails of which need not be shown or described herein excepting to point out the location of the motor IB which is mounted on the Vdrawer l H beneaththe turntable I 5.'

`1 and 2.

Reproducing mechanism is also enclosed with'- in the casing l0 and mounted on a fixed portion 3 thereof such as a base panel shown in Figure 6. The reproducing mechanism 'includes va tone arm 2l of :any `suitable form provided with ra reproducing needle 22. Said tone arm is pivotally mounted for vertical swinging movement :on

table for engagement with a phonograph record.` However, the drawer II is slidably mounted in the casing I3 independently of the tone arm and .its associated parts, so that Ithe turntable uwith :its `disc will be `'fully ywithdrawn `from be- .neath Vthe tone arm when the fdraweris moved .into-open position.

lSince the tone arm -is inaccessiblerom the exterior of the casing lat -all times, .-meansiarezprovided for automatically raising and :lowering the Itone ,arm during the 'playing of the record Vand for swinging and locating :the tone zarm in A.its `starting Vposition relative `to lthe turntable. The vmechanism for this purpose, operated by -elec- -trical control devices to Abe hereinafter more fully described, consists essentially of an upright elevating rod slidably mounted fin a guide 26 carried on the inner -end 'of a :bracket 2:1, preferably xed on the tone arm :support 23., as by means of member 21a Vsecured to :support 23 by set screw 45. The elevating -rod is actuated to raise the tone arm '2-I from :the record by an armature-member 28 pivotally connected at one 'end on bracket 29 and having its .free end in cooperative relation with relay 30 also mounted on the bracket 27 asshown in Figure 3.

The elevating 'rod y25 is adapted Yto -be locked -in `its raised position by .a latchymember ;3I pivotally mounted on .the :bracket .'21 and having ,one end adapted to engagein .a detent=32 `formed Vin the elevating .rod and with zits other end iin cooperative relation with :a .relay -33 .mounted on the side of the bracket 21. In the kform shown the latch member is normally urged ltoward the elevating Vrod 2 5 by acoil spring 34. Thefa-rrangement is such that when the relay is :energized ,and Vthe relay .33 is def-energized the elevating rod 25 will be raised toa position `shown :in Figure 3 where `the latch Imember 3| lbecomes Vengagedin lthe detent 32 Vin .said elevating :rod

to hold the tone arm `in elevated position. Upon :de-energization of the relay 3l), and the energization of relay 33., the latch Amember 3'I will be withdrawn from the .detent 32 :to permit the tone `arm to drop by gravity toward the record.

The mechanism for swinging the -tone sarm laterally into its starting position is shown tin detail in VFigures 5 and 6. This mechanism consists .essentially of an electric motor 35 :having ja worm 36 on drive shaft 31 engaging avvorm "gear .38 on an upright shaft 39 .spaced :horizontally from the tone arm 'support 23. The worm gear 38 carries a cam 4E) normally engaged by;a roller V-iII on a horizontally ydisposed spring pressed rocking arm 42. The vfree end of the rocking arm 42 is operatively connected by a rlink 43 .to

ya leverarm44 extending horizontally :from mem-V ber 27a and xed to the tone armsupport `23 fas by the set screw 45. The outer end -of the lever arm 44 is bifurcated at 416 and has 'an upright pin 4'! extending between the furcations lfand passing through va block l48 fslidably mounted in :an-elongated slot V4S) and'engaginga tensonspring 5I) which :yieldingly limits movement of the slid- Vjingblockffli 'ftoward thesouteraend of '-.the link 43.

The tension .oflthe spring .15D maybe adjusted by a set screw 5I extending through the outer end of the link 43 in an abutting engagement with .Y the spring 50 Aas clearly shown in Figures 5 and 6.

"The'cam operated tone arm swing mechanism just described isA provided with means for controlling :the starting position of the tone arm relative .to yItherecord, depending upon the size of the record ib'e'in-g used, and for automatically starting .the reproducing mechanism when the Vdrawer is closed with a record on the turntable.

.This-.control means includes a swinging arm having one end pivotally mounted at 56 within the-casing Il] ad-jacent therdrawer I I .and having a roller 55 von .its .-free fend projecting laterally into the drawer, in position to engage theouter .periphery of -a record when the flatter is placed on the turntable and fthe drawer is 'in .-full-y closed position, as shown in .Figure .1. In the .form shown ,herein the arm 55 .is designed to .be yieldably lengagedwith `records of ,two 4different sizes such Aas `standard l0 and 12-.inoh records irl-common -use today. VThe arm .55yis normally urged toward the `axis of the' `.turntable as by .-a ycoil:springl surrounding thepvotB. The :ar-m ,5 5, is `eleotriealy .connected with -.a stop device -indicated generally at 58 in Figure 5 tocontrolfthe amount of -throw or .outward movement tof the Vtone arm, .depending lupon fthegsize of the .record Vbeing played, as will .more ffully appear .-in tconnection with Ithe description ofV the control ci-n- `cuit-of the device.

An .electric controlled latch mechanism for the drawer is also provided as shown in Figure 4 which. consists yof'a latch member 1.5i! normally urged toward the drawer by a coil lspring II -so .as to lock the `same by engagement in a .detent '6.2 on the drawer when ,thedatter is in full-y closed position. The latch member is automatically VAunlocked by energization :of :a frelayi adapted Vto retract the lower .end of the latch member 6B.

VReferring now to thefelectric diagram i-n .Figure 7 showing the various electric .control connections .for Athe devices hereinbefore zdescribed, .it will be observed that the various connections are initially controlled by theolosingfof the drawer II and :the movement of the latch member 6i] into the `det-erft .62 of the 4drawer |to flockthe same.

Assuming .that -a :lo-.inchfrecord has been placed on the turntable while .the drawer .is open, 'the .alot `of closing of the-drawer lwill cause :the Aperiph- V.eryof the record 4:to-.engage :theroller 5S on control :arm 55 :and move ysaid econtrogl arm :outwardly a sucient -distance 'to -close the :contacts 10 and 'H ois-witch member L2 in the mai-n l.line conductor .13. Fin-arl' liatching v-of fthe fdrawer by .movement of the latch member 9 :will also close .contacts 14 and J5 `by movementV of the switch member Iii carried by the latch `member 510 so .as to connect lines 1J and '1B with the main Aline conductor 1.3. .This will complete -a `circuit through line TIB, turntable motor I6 and Athe-main return line 39, thus starting :the turntable motor -to rotate.v

Tostart the reproducing mechanism, a push- .button `8l vsuitably flocated Jon the :exterior .of the casing and under the .control of thegoperator .is momentarilydepressed so -as Vto yestablish .a contact through lines 82 and 83, contacts :84 'and 6510i fthepushbutton BI., line 36, tone 'ar-.mfswing .motor .35 and ,line Atf1 A:to the `main return line 8|).

V.if-ls 'soon as the swing motor 35 is started it will clockwise direction 'as seen in' Figure 5. 'As said cam turns it forces the rocking arm 42 outwardly against the tension of spring 42'. Inltial movement of arm 42 will release pressure on a spring-pressed switch arm 88 at the outer end of said arm, and cause switch members 89 and 9U to close so as to complete a circuit through lines 9| and 92 to line 86 and permit a continuous currentl through the swing arm motor 35 when the starting push-button 8| is released. As the rocking arm 42 travels to the right as seen in Figure it pulls the link 43 to the right and causes the lever 44 xed to the tone arm support to swing to the right against the yielding action of spring 58. Said tone arm support shaft will thereupon be rotated to swing the tone arm outwardly from adjacent the axisv of the turntable until further movement of said arm is stopped by engagement of the abutment .93 on stop member 58 carried on lever 44, with a finger 94 carried by a pivoted stop arm 95. Said stop arm is normally urged by a spring 96 into position to engage the abutment 93, but is capable of being displaced outwardly by a relay 91 when a larger record is mounted on the turntable as will presently appear.

The spring 50, during rotation of cam 40, is yieldable so as to permit continued movement of the llink; 43 to the right after swinging movement of the tone arm support 23 has been stopped by engagement of the abutment 93 with the finger 94 of the stop arm 95. As the motor 35 continues to rotate the cam 40 over its highest point, the arm 42 is permitted to return toward the left, urged by the spring 42', thus releasing the tone arm 2| and its support 23 so that they may swing freely due to the slotted connection of arm 44 and link 43.

When the roller 4| on arm 42 reaches the pocket 98 on the face of the cam 40 the arm 42 again engages the spring pressed lever 88 to open the switch members 39 and 98 and cut oi the current through the swing motor 35, and at the same time, to close contacts 99 and |00 of a switch Closing of the latter switch establishes a circuit .through line |02 and relay 33 so as to release the latch member. 3| from the elevating rod 25 thus permitting the tone arm 2| to be lowered by gravity so that the reproducing needle will follow the spiral tone groove inwardly of the record in the usual manner, carrying the tone arm and its supporting shaft 23with it. l

When the tone arm 2| reaches the end of the transcription on the record, a stop member |04, herein carried by bracket 21 engages aswitch member |05 to close contacts |06 and `|01 and establish a current through lines |08, |09 and ||0 and normally closed contacts I|| and ||2 of a switch member ||3. The contact 2 of said switch member is connected by lines I |4 and ||5 with the relay 38 so as to energize the same and raise the elevating rod 25 which in turn lifts the tone arm from the record and permits the locking member 3| to engage the detent 32 in said elevating arm to hold the tone arm in elevated position. It Vwill also be noted that the circuit through `the relay 30 just described is completed through line H6, relay 63 and line l|1 to the main return line 80 so as to withdraw the locking member 60 from the detent 62 on the turntable drawer and permit the drawer` to spring open under thetension of the spring 8 which engages the inner wall |4 of the drawer compartment as shown in Figure l; As will bev noted in Figure 4, withdrawal 6i the locking" member 60 causes the switch member 16 to open the contacts 14 and 15 controlling the main linel circuit through both motors I9 and 35 so aswto discontinue all circuit connections to theelec-A trical parts as long as the drawer remains'openand the latch member 60 of the latter is'dis` engaged. The recording apparatus is therefore'e completely shut off and the drawer may nowsbef pulled open to remove the record and replacex with another record if desired.

In the event that it is desired to reject the record before it is completely finished the operator maydepress a push-button switch |20 located on the exterior of the casing so as to close contacts |2| and |22 in parallel with the tone arm operating switch |05 so as to establish current through the relays 30 and 63 and cause the tone arm to be raised and the drawer automatically'unlatched in the same manner as in the case of the operationof the tone arm switch |05.

Assuming now that a 12inch record has 4been placed on the turntable instead of a l0-inch record. The roller 56 will engage the periphery of the record as the latter i-s pushed in with the drawer and the arm will be swung outwardlyv somewhat farther than in the case with a, 10- inch record so as to close not only the contacts 10 and 1| but also close contacts |25 and |26 of switch member |21 adjacent the switch member 12 (see Figure 1). This will establish a circuit from line 19 after the drawer is closed, through lines |28 and |29 to contacts |30 and |3| of switch member |32. The switch member |32 is adapted to be closed by engagement of the free end of the rocking arm 42 as it approaches its extreme limit of movement toward the right in Figures 5 and '1. Closing of the switch |32 will therefore establish a circuit through line |33 and relay 91 so as to pull the stop arm 95 -against the tension of spring 96 and move the stop 'finger 94 of said arm out of registering position with the abutment 93 carried by the tone arm support 23 andl into registering position with a second abutment; |34 carried by the stop member 58. As a result-y the tone arm support 23 is permitted to swingj through a slightly greater arc than when its; movement was stopped against the abutment 93'..

In the form shown the abutment |34 is provided.

by means of an adjustable screw |35 which mayf be regulated so as to limit the swinging movement',

' of the tone arm and its support 23 precisely at'.

the proper pointto drop the reproducing needle at the starting position of a 12-inch record instead of a 10-inch record as previously described` The operation of the remainder of the control mechanism will be the same as for a 10-inch record whereby the electrical connections will be automatically cut off either at the completion of 'zlzi record, or by operation of the rejection switchr In the event that the drawer should be closed when there is no record on the turntable, arm 55 will not be moved into position to close the switch member 12 so that it is impossible to start the machine and the drawer will be maintained inlocked position. Means are provided for un locking the drawer under this condition whichconsists of an emergency button switch |36 which closes contacts |31 and |38 to connect the mainA line 13, through lines |39 andl40 to line IIB leading through the drawer unlocking relayA `|53. In practice it may be found preferable to locate the emergency .button switch |36 at some secret place.

ali-sesos wherelit can "be operatedf only by an attendant inethe recordselling-i shop. 1n thisfmanner ythe drawer-.can ybe maintained- `in locked positional;- all times .under the control of theattendantexcept at such times as it is ydesired to permit anthorizedfuse of the demonstrating machine.

Ailthough I have shown and described certain embodiments of my invention, it Will be understood that EI do not Wish to be limited tothe exact construction shown and described, but that various changes and modicationsmay be made Witlhoutdeparting 'fromj the spirit and scope of Vtheinvention as defined; in the appended claims.

I claim:

l. In a phonograph record reproducing device', an :enclosed casingV having a withdrawable wall portiom a. rotatable :record holdingr memberr and afd-rivel'motor therefor mounted on and movable wit'hgsaid vwall portion, 'so that said record holding member may be withdrawn from said casing iorfapplication-or yremoval otra record, reproducing mechanism including a tone enclosed insaidfcasing in cooperative relation \vith1said 1 ordf'hoidin'g;v memberwhen' said Wall :portion fully closed position; ani-l electric"control` means i-nfcooperativeirelation Withisaid Wall'zpontion with alrecordL on 4`said record holding` member for starting/the operation of saidrecord drive motor, when saidI Wallportion is movedy tofsaid position.

l2.r In ra phonograph record. reproducing device',

anpenclosed casing havingfa vvitholravvable'vla-ll'V portion, a `rotatable record holding. vmember `and a- 'drive motor therefor ymounted Aonand movable weithsaidwail' .portionJ fso that sai'd record, hold-V ing' member may be Withdrawnffromsaidt casing( for application or removal of record; lrepro,-

ducing mechanism includinglzatone arm enclosed inI said fcasinglinf cooperative relation with' said record, holding member when fsaidi Wall: portion isfinfullyY closedI position, and electric .control means in cooperative relationwith said Wall Aportionand with a frecordro'n saidfrecordholding member 4for positioning. said Atone arm in starting relation to--said record'y and for starting` theoperation-orsaid 'record drive-motor; when said Wall portionf-is: moved tofsaidposition. Y

3; Infa phonograph record reproducing device,y an enclosed casinghavinga withdravvable Wall portion with latchl mechanism 'for locking the same, r-a rotatable record'fhol'ding.'member and a drive -motor therefor mountedon Vand movable' withsaid -Wall `portion Yso that said record x'holding member maybe temporarily withdrawn-'from said casing for application; or removal of larecord, reproducing mechanism'inc'ludin'ga tone arm' enclosed within-said casingr in cooperative rielation :with said lrecord holding 'member 'when said.

Wall portion isi-in ylockedpositions electric 'cori-Y trol means in cooperative relation with said wall portionfandWithrarecord on said recordlholdiner member, and responsive toV the moving fof fsa-id record holding member with a record thereon andfto movement ofefsaid vvallmortionY into'looked position in said casingior starting the'operationof saidrecord drive motor in operationfand for positioning 'said tone farm in 'starting position relativeto :said-'recordiho'ldingmember; and other electric control means responsive fto 1 the position ofasaid tone-arm atfthe "completioirof a record transcription `for cuttingl` 0H 1 the`fcurrent tov said drivef motorandi for lunlockin-'g said latch.v means. l

""4, -In a, phonographV record reproducing device, an ericlosedcasinghavin'g a Withdrawa'ble wall portionwithC a latch-fmechanism for' locking fthe same, switehrmeans responsive to /said latch Y member as" it is moved into `fully'closed position,

and responsive to -a recordfon said holding member 'ior.permitting, circuit; connections` throughy said switch-*means tosaid drive motor onlyvvhen said` latch mechanism. is in flockedrposition'.

5. Inaivphonograph: record Yreproducing device, enclosed'casingifhaving a Withdrawable wallv portion with'azlatch. mechanism for locking the samerarotatable record holding `member vand a drive motortherefor lm'ountedfon and movable:

with` said' wall. portionv so `that said record :holding member may be temporarily withdrawnfrom` said casing for application 4or; removal of a record, a tone arm Wholly enclosed withinzsaidcasingin cooperative-v-relationfwith saidirecord holding member when-said wall portion fis 1in fully closed; and; `locked'` position. in saidl casing, electrically operated. means in' saidl casing .for automatically positioning said tone Lai-'m in kstarting relation to'said record. holding member, electric controll'means cooperativelyiassociated with said recordlholdingmember including a contact member adapted-Itov entend"y into the lpath of' movement o-f-a recorcl mountedon said-record holdmg member as it is-mov'edinto fullyrclosed position, and responsive to a record onv said holding membervfforfstarting Ytheoperation of-fsaid record drive motor, and manual-'switch means accessible from the exterior of saidcasing Yfor startingsaid automatic positioning mean-slm operation.

6. In-a phonographrecord reproducing device, ahlen-closed casing having a Withdrawable Wall y portion With'a-latch mechanism for locking the same, a-1otatab1e` record holding Ymember and adrive motor-ltherefor'mounted on and movable with said Wall por-tion'v so that said record holdinglmember maybetemporarily withdrawn from said=casing `for the application -orfremoval of la record, 'a tone arm wholly enclosed.Y Within said casing Yin cooperative -relation With said record holding member when the latter isin fully closed and locked position in said casing, electrically operated meansin said casing forautomatically positioning said tone Varm in starting relation to said recordholding member, electric control means cooperatively-associated with said record holdingA member Vincluding; Va contact member adapted to extend-intot-he path orf'movement of a record mounted on said record holding member `-as they aremoved into fully closed position, forstarting the operation of lsaid recordY drive motor,fmanual switch-means accessible from the exteriorof said casing for starting said automatic positioning means in operation, and other electric control means in cooperative relation to said-tone arm and'res-ponsive'to thejposition of said tone arm-at the'completion of-a record transcription, ifor raising said Ytone armfrom the record, -for` cutting oiT the current to said drive motor,v and for unlocking said latch means.

"7. /In' a phonogrs'tpl'i'V record reproducing device,

an Aenclosed; casin'gj having .a withdrawable llwall portion, a rotatable :record -holding member mounted on and movable with said wall portion so that said record holding member may be temporarily withdrawn from said casing for the application or removal oiV a record, a movable tone arm wholly enclosed Within said casing in cooperative relation with said record holding member when the latter is in fully closed position in said casing, and means in said casing for automatically positioning said tone arm in starting relation to said record holding member depending upon the size of the record placed thereon including a yielding Contact member adapted to extend into the path of movement of a record mounted on said record holding member as they are moved into fully closed position in said casing and stop means in cooperative relation to said contact member and responsive to the position of said contact member for automatically limiting the movement of said tone arm positioning means to a predetermined starting position depending upon the size of the record on said record holding member. i

8. In a phonograph apparatus, an enclosure, a movable pick-up device permanently coniined within said enclosure, a drawer movable into and out of said enclosure, a turntable mounted on and movable with the drawer, so that the turntable may be withdrawn tfrom the enclosure for the insertion and removal of a record and may be returned into the enclosure to bring an inserted record into cooperative relation with said pickup device, an electric motor operable to drive said turntable, switch means for controlling said motor, and means in cooperative relation with said drawer and with a record on said turntable for effecting closure of said switch means in response to closure of said drawer and to movement of said record into cooperative relationship with the pick-up device.

9. In a phonograph apparatus, a casing or housing having a member movable to opened and closed `.positions to enable the insertion and removal of records to be played, a turntable for supporting a record in playing position within said casing, a pick-up device arranged within said casing for engagement with a record supported in playing position, an electric motor operable to drive said turntable, an energizing circuit for said motor, and a pair of switches serially included in said circuit and controlled respectively by said member and by an inserted record as it moves to playing position, whereby the op eration of said motor is dependent upon the closure of said member and the presence of the inserted record.

10. In a phonograph apparatus, a casing or housing having a member movable to opened and closed positions to enable the insertion and removal of records to be played, a turntable for supporting a record in playing lposition within said' casing, a movable pick-up device within said casing adapted to be brought into starting relation to a record supported in playing position, an electric motor operable to drive said turntable, an energizing circuit for said motor, a switch included in said circuit and controlled by an inserted record as it moves to playing position,

whereby the operation of said motor is depend ent upon the presence of the inserted record, and means dependent upon the closure of said member for positioning said pick-up device in starting relation to a record in playing position.

11. In a phonograph apparatus, a casing or housing having a member movable to opened and closed positions to enable the insertion and removal of records to be played, a turntable for supporting a record in playing position within said casing, a movable pick-up device within said casing adapted to be brought into starting relation to a record supported in playing position, an electric motor operable to drive saidy turntable, an energizing circuit 4for said motor, a switch included in said circuit and controlled by an inserted record as it moves to playing position, whereby the operation of said motor is dependent upon the presence of the inserted record, means dependent upon the closure of said member for positioning said pick-up device in starting relation to a record in playing position, and means controlled 'by the inserted record for adjusting said last-named means to effect `positioning of said pick-up device according to the size of the record.

12. In a phonograph apparatus, a casing or housing having a member movable to opened and closed positions to enable the insertion and removal or records to be played, a turntable for supporting a record in playing position within said casing, a movable pick-up device within said casing adapted to be brought into starting relation to a record supported in playing position, an electric motor operable to drive said turntable, an energizing circuit for said motor, a pair of switches serially included in said circuit and controlled respectively by said member and by an inserted record as it moves to playing position, whereby the operation of said motor is dependent upon the closure of said member and the presence of the inserted record, and means dependent upon the closure of said member for positioning said pick-up device in starting relation to a record in playing position.

13. In a phonograph apparatus, a casing or housing having a member movable to opened and closed positions to enable the insertion and removal of records to be played, a turntable for supporting a record in playing position within said casing, a movable pick-up device within said casing adapted to be brought into starting relation to a record supported in playing position, an electric motor operable to drive said turntable, an energizing circuit for said motor, a pair of switches serially included in said circuit and controlled respectively by said member and by an inserted record as it moves to playing position, whereby the operation of said motor is dependent upon the closure of said member and the presence of the inserted record, means dependent upon the closure of said member for positioning said pickup device in starting relation to a record in playing position, and means controlled by the inserted record for adjusting said last-named means to effect positioning of said pick-up device according to the size of the record.

KENNETH R. MCKEE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 701,769 Sheble June 3, 1902 1,443,730 Collinson et al Jan. 30, 1923 2,100,686 Collaro et al Nov. 30, 1937 2,348,766 Wagner May 16, 1944 FOREIGN PATENTS Number Country Date 604,671 Germany Oct. 25, 1934

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