US1343640A - Gramophone-drive - Google Patents

Description

F. MYERS. GRAMOFHONE DRIVE.

APrucATlon mso m1. lr. |919.

Patented J une 15, 1920.

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Laien-iop inscannen:men-wa. Patented June 15,1920.

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To all'whomtmcg concern. s i i -througlhthe plate 18, and inclosing a rigid Be it known that I, Fnnnnnlcn Minnie, a centra vertical spindle 23 having at the citizen of the United States, and a'fresident top a rejection 24, on which is centere the of New York 'in the county of NewV York recor disk 25. The lower end of the sleeve .I5 andStateof ew York, haveinvented'ceris fitted to rotate on the spindlel 23 and co tain new and useful Im roveinentV 'in rests in a cup 26 formed on a removable Gramophone-Drives, of which Vthe followplate 28 into which the spindle is riveted is a specication. i or otherwise secured.

` invention relates to improvements in This construction ermits oil to partially 1o means for utilizin electric motive ower ill the cup 26 an by capillary action, a6 for actuating anV pro Yerly repro ucing lubricate the interior oi the sleeve so as to sounds from sound recor s and to means for cause the table to rotate freely. controlling and regulating the speed of the 'lfhe removable plate 28 rests within the Sme, n casing upon legs or supports 29, having rub- 16 The principal object ofthe invention is to ber feet 30 in contact with the llooring 11, 7o provide a simpl? reliable electric drive, these feet being sli htly resilient so as to easily removed m its position for inpecabsorb any jar or v1 ration. tion or repairs, and as readily replace l A pair of raised lu s 32 are formed on A further object is to provide a Starting the u per side of the p ate 28 near one end,

eo device2 o ble automatically or manually. and xed to them by screws 33 are vertical '15 A still er object is to provide a siinp e insulating supports 34 having recesses in frctional drive mechanism eliminatin their tops in which are received the trungearing, belts, andthe like,' t ereby avoi nions or pivotal supports 35 of an electric in noise conseiient to their use. motor 36, arranged vertically and having a z5 hose and ot er similar obyects are atdepending lug 3 drilled and threadedto reso tained by the novel construction and comceive an adjusting screw 38 mounted in anbination of operative parts hereinafter deother lug 39 on the upper surface of the plate scribed, and shown in the accompanying 28 and provided with a knurled head 40 by drawings, forming a material part of this which it can be turned in such manner as so disclosure, and in whichzl to ivot the motor upon its trunnions. 85 Fi l is a vertical sectional view, showhe motor shaft 42 extends upward ing t e motor and Vallied?!tir-lifting parts as .through an opening 43 in thecover 18 carattached the cabinet; rying at its upper end a hub 44 held by a Fig. 2 is a horizontalsectionalivew taken screw, and formed with the hub is a drivals on line 2--2 of Fig. 1, the motor, governor, in disk 45 A.on which is secured an elastic so lam .and disk su ptrt be' removed.- friction roll 46 ada ted to make contact 3 is a pa side e evational view with the inner perip eral flange 47 ,of the showing a fragment of the cover and elecrecord table 20 so that the same may be rotricnl contacts, and tated by it when brought into 'rictional 4o" Fig. 4 is a front elevational view of the en agement by the screw 38. 95 same. n the sleeve 22 is a hub 50 formed with The cabinet containiii Ythe driving mechaa disk 51 having a down-turned iianged nism is hereV 'to e substantially recperipheral rim 52, its inner surface bein tanglllai and is comprised a baise 10, over engaged by the elastic driving roll 53, fixe t :i which is a ooring 11, and YYvertical side upon the upper extending end of the vertical 100 walls 12 and 14, joined atth ffrontand rear shaft 55 which is held in position by end b corresponding Aend walls l5 and 16, all support brackets 56 and 57, secured reo the vertical walls being desirably made spectively above and below the plate 28. By 'oi glass through which the interior mechasaid roll rotary motion is transmitted to a nism can be seen.VVV conventional type of centrifugal governor 105 A cover pl te" 18Y is engaged with the 60, having at 'its lower end an e ongated u per ed of the structure, over which is sleeve 6l carrying a disk 62. l t e reeor carrying table20, the same hav- This s eed regulator or governor is pro- 'ing elongated hu Y 21 in which is aiiixed vided with a control lever 65 fixed upon a 66 the upper Yend of a sleeve 22, extending short horizontal spindle .66, journaled in iio the mechanism is 1n operation, the socket parte as a unit.

Y circuit. hereinafter described. as degcriptlve on] md not as resti-ic bearings in a pair of raised lugsv 67 formed The motor 36 is then positioned 2in. its on the upper sui-face of the plate 28 at the trlinnionbearings, the' elements 78 mpletend opposite the motor, the spindle having ing the circuit to the motor from the sp a cam end adapted to raise or lower a friccontacts 76 and 77 the sleeve 22 and ernor arms are moved, due to the momentum 23, and the roll 46 brou ht to bear of the weights, it may increase or decrease the inner peri hery of t e flanged tab e 20, the speed of the sleeve 61. whereupon, i the proper switch huttoiiis The block 68 is (pressed into e agement depressed current will flow through the moisk 62, when t e latter tor, thereby rotating the record table and, 75 rises, and acts as a brake the u per end of obviously, its s may be regulated by maabove t e cover 18 nigulati the ever65.

y romnte foregoing it will be seen that the speed of the table 20. a substantially noiseless friction drive has An incandescent lamp socket 70 is fixed been provided, which is under ieady control so at any convenient point on the lplate 28 and as to stopping, starting and speed, and that engaged therewith is a liglit bu 71 so that the platev carryin the mechanism is easily is illuminated when removed and pfaced with all its attached the interior of the casing having terminals 72 and 73 in an electric The foregoing disclosure is to be regarded sa ive or An insulating block 75 is Secured Upon limitative of the invention, of which obvithe plate 28, contiguous to the motorl 36, ousl embodiments may be constructed inand fixed on the block, are spring terminals .clu many minor modifications without 76 and 77 connected with the motor by conde art from the lspirit; th roof as herein 90 tacts 78 alixed upon its lower end. in 'caty and hereafter claimed.

Fixed upon one cn'd of the plate 28 is a Havingthus described my invention and bracket 80 having raised lugs 81 and 82 to set forth the manner of its construction 'and f which are secured spring strips 83 and 84 operation what I claim as new and desire having terminals 85 and 86- to secure by Letters Patent, is.- es

The other ends 87 and 88 of the strips exf 1. In a gramophone the combination with tend in parallel relation outwardl beyond a casing and a record carrying table, of a the edge of the late, and are a aipted to plate removably supported in said casi a 90, semotor pivotally mounted on said plate to cured on the inner side of the casing eleswing on a horizontal axis, a spindle mountment 15, when the plate 28 is in a normal ed on said plate and on which said table is position therein. rotatively mounted, a fricti n roll driven by Connectin with the contacts 89 and 90, said motor and en able with the periphare insulate lead wires 93 and 94 from any ery of said -record table, and means on said convenient source of electrical energy, and plats whereb said roll is adjustably held from the terminal 86 leads a conductor 96 iii contact wit said record table. to one terminal 97 of an insulating block 2. Ina gramophone tlie combination with 100, the other terminal 98 being connected a casing and a recor carrying table, of a to the spring terminal 75 by the wire 99. plate removably sup rted in said c a From t e terminal 85 leads a wire 101 to vertical spindle fixedgn said late, an elon- 11o the lamp socket terminal 73, the current gated sleeve carrying Asaid ta le and rotapassing through it to the terminal 72, and table on said spindle, a friction rolleiI enthence by wire 102 to the terminal 86. gaged with the periphery of said table, and

connected with the terminal 85 is a a motor on said plate for rotating said wire 103 leading to the spring contact 76 roller. Y 116 and it will bc understood that tlie spring 3. Ina gramophone, the combination with contacts are in circuit when the motor is in a casing and a record carrying table, of a sition, owing to the Acontacts 78 at its motor in said casing, frictional driving ttom.

Secured to the cover 18 is a push button table comprising a friction roll driven by 12a switch 106, having leaf spring contacts 108 said motor and engagid with said table, a and 110, res actively adapted to engage with governor controlling t e spes the termina s 97 and 98, the buttons 109 and and frictional drivin means for driv' 111 extending upward through the plate 18 said governor comprising a disk rotatable into position for convenient access. with said table and a friction roll e g n operation, the drive plate 28 having the samepnd connected with said governor.

n positioned within the casing, the ter 4. In gramo hone, the combination with minals 89 and 90 complete a direct circuit a casing, of a p ate mounted therein, a stathrough the lamp socket so that the bulb is tiona spindle extending upwardly rom made to glow. said p te, a record carrying table rotatively ilo mounted on said s indie, a motor Ypivotall)1 4 6. In an electric drive for gramophones,

mounted on said p ate, a friction roll driven the combination with a casing and a source 25 b said motor and engageable with the peof electrical ener of a removable .plate in riphery of said table, means for holding said said casing, an e ectric motor on said plate, 5 roll in engagement with said table, and a record taule driven by said motor and 'means mounting said plate whereby said mounted on said plate, and spring contacts plate and the parts attached thereto may be on said plate adapted to engage W1 h con- 30 freely withdrawn from said casing. tacts connected with the source of electri- 5. In an electric drive Jfor gramophones, cal energy when said plate is positioned in 1o the combination with a casing and a source said casing.

of electrical energy, of a removable plate in 7 In a gramophone the combination with said casing, an electric motor pivotally a casing and a record carrylng table, a re- 35 mounted on said plate, a record table mountmovable plate in said casing, a motor, suped on said plate, la friction roll driven by ports on said plate pivotally mounting .said

15 said motor and adapted to engage the pemotor to oscillate on a horizontal axis, a riphery of said table, means for moving said friction roll drivenby said motor, a recor motor to move said roll into and out of table driven by said roll and mounted on 40 engagement with said table, spring contacts said plate, and ad'ustable means for moving on said plate, means on said motor for elecsaid roll into an out of engagement with 20 trically connecting said spring contacts, and the periphery of said table.

other spring contacts on saidl plate adapted In testimony whereof I have signed my to engage with contacts connected with the name to this specification. source of electrical energy. FREDERICK MYERS.

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