US1290006A - Phonograph. - Google Patents

Description

'Simfree lief-@rimarr-w OFFIGE.

GEoizeE J z 'IsciLL or NEWARKQNEW'JEESEY, AssIGNoia 'ro NEWARK ENGINEERING A.

Lesiones.

NEWARK, NEW' JERSEY, A coEroEArrIoN o E" I rilioNoGnAPir.

Specilication of LettersPatent. Patented DQ, 31,1918;

' Application inegi February 12,1917. sei-imno. 148,029'. v

T o all whom it 'mag/concern:

' parts p .when athe parts are running and also when resident of Newark,

adj acent vto a ing Be it kndwn thatA I-,GEORGE J Ziscrn a subject of the Emperor of Germany, and a county 'of Essex, and State '-of- New jJersey,'liave invented certain new and useful Improvements in Phonographs, o'f'whieh thefollowing is a specilication.. Y z l I "This inventionrrelatesto a phonograph which' is adaptedto be more easily operated, the parts for'st'a-rting, lstopping and regulating the Speed of the motor being convenient invposition and easy to operate.

vThe invention is further designed to provide a phonograph in which the operation of'winding is' made substantially noiselcss andthe starting `and-stopping of the motor is also .madesubstantia'lly noiseless, since the are kept in substantially close contact they` are stopped.

The invention is further designed to provide phonograph in which an indicator lis provided whereby the speed ol the turntable, on .which the record is supported, is indicated when the motor is ruiming, the indicator beingin View of the operator of the phonograph and being preferably arranged device whereby the speed can be regulated so that it will be evident toan observer when the turntable is revolving at normal speed or when its speed has been increased or decreased.

` Thr-:invention is further designed to providel a phonograph in which starting and stopping devices are installed with operatbuttons or studs which are convenient,

. easily operated and soconnected thatnVhen one is pushed or depressed, the other is ele` Vated or presented better for operation so that the stud to be next operated is always presented for operation. A phono-graph made according tol my invention preferably has the: starting and stopping-devices, the indicator and the regulating means placed on the top ofthe motor casing adjacent to the turntable, and in my formof phonograph the starting and stop-- ping devices are preferably connected direetlywith the -motorgfalthough this is not essential, suchdirect connectionv acting to. relieve vthe noiseincidental to theplay between the-turntable and the spindle on which it is mounted Whena brake'is applied to thev The particular t is not essential an itis not fully illustrated power through. ldriving'to la spindle 15v on which the turnturntable, and it furthermore permits a` more rigid and firm attachment of the turntable to the spindle on which it is mounted, and it can be located more closely to the top ot' the phonograph, since it is not necessary to provide space underneath it for the establishment of a brake'.

The invention is illustrated in the accompanying drawings in which one forni ofiny invention is illustrated, and in the several figures of which correspond :ng reicrence numerals are employed to indicate coi'respondJ' ing parts.

In said diimvings, Figure 1 is a bottom l view of the motor, the top of the phonof graph casing and the turntable being broken` away, tliisview also show ing the connection between the motor and the indicating,.regu' lating and starting and stopping v devices..

tion oi'vthe arbor by means ofwhich the springs and the is a front view ofthe construction illustrated in Fig. 1 nvith part of the top of the casing broken away to moreclearly indicate motor are wound. Fig. Ll

some of the parts, and Fig. .5 is a top view e of the motor casing showing the starting and stopping, the reguiating and the indieating means assembled iii. substantially one location on the casing. Fig. 6 1s a section von line 6-'-G,'in Fig. 5, and Fig. 7 is a detail of the yielding means for locking one of the studs of the starting and stopping devices. pe of phonograph casing in the drawings in this case, it being necessary only to show vthe top part or plate 10 which forms the cover paril of the motor easing, and the motor is secured in the easing usually by suspending it from the under face of this cover 10,- in the form shown the means of bolts 11 and nuts 12 to the part 10, the motor being driven in any preferred way, but they motor is illustrated .as aspring. motor,

the barrels 13'inclosing the springs and these when under a tension and released,

table 16 is mounted, the turntable 16 being motor having a frame `which is fastened by ioo - used to suppOrta disk record: it being nde-.1h l i member which consists of l vpulls the shoulder 27, the sleeve 26 andthe stood, of course, that proper changes in' the support of the record can be provided if the .record is a cylinder record. In the form lshown the splndle is provided with a bevel gear 16a which is in mesh with the bevel gear 17 and is on thesame shaft and rotates With a spur gear 18 which is in mesh with the gear 14, and the spindle 15 has'a Worm gear 19 thereon which is in mesh with a worm 20 on the end of a governor shaft 21, which governor shaft is supported betweenthe bearings 22 and 23 of the motorV frame 24. The governor shaft 21 is provided With a fixed colla-r 25, that is, the collar rotates With the shaft 21 and iS held against sliding on the shaft 21, the governor beingvprovided Witha sliding a sleeve 26 having a shoulder 27 thereon and having a disk 28. The sleeve 26 and collar 25 are connected by springs 29 on which the governor weights 30 are fastened so that When the governor is rotating, the centrifugal force ofthe weights disk 28, these parts being integral and sliding together and being preferably mounted so asrto slide on a key or feather 31 so as to relieve the springs 29 of torsional strain.

i They disk is used for indicating and also for regulating the speed of t-he governor,

thus in turny regulating the speed of the turntable and of the mot-or. The means for limiting the movement of the disk 28 along the shaft 21 is utilized for regulating the speed,

and a. yielding means, pushed by the disk 28 I when it moves, is used to indicate the speed, these elements 'being grouped, preferably,

along with other manually operable parts, so

Y as to make them convenient for use.

In the form shown the speed regulating device comprises a lever 32 which is pivoted to the bearing 23 and has on one end a block 34 adapted to be engaged bythe disk, this block'being usually-made of a soft material, such as felt,and' is frictionally engaged by the disk 28 when the motor is in operation,

but it is usually kept lubricated in order to not interfere seriously 'with the smooth oper .ation of the motor. The opposite end of the lever 32 isin engagement with the end of av sc-rew 35, the end of the lever 32being forked as at 32 and preferably arranged betweenl collars so that it is pushed up and down as the screw is operated. The screw-threads 36 of the screw 35 travel in the screw-threaded barrel 37, which barrel is fastened to a plate 38. The upper end of the screw 35 projects above the top of the cabinet as at 39 and` is provided with a finger-piece 40 by means of which it can be turned. To permit the operf ation and installation of this adjusting screw, and also lfor other associated devices,

the top 10 of the; casing is cut away as at 41 and provided To findiicate'the. speed 'of the motori wit'ha cover plate 42 of suitprovide a suitable ldial on the plate 38, this dial being'indicated at 43 in Fig. 5. The dial may be provided with a glass cover 44 to prevent accumulation of dust on the dial. Suit-ably supported, and in the drawing being shown supported on the under side of the plate 38, is a bracket 45 which supports as indicator stem 46, the screw 4T supporting the indicator stem at the bottom, the stem having at its top a suitable pointer 48 which registers .on the index plate 43 the speedat which the turntable 16 is rotating, this indicating usually being done by marks showing the number of revolutions per minute, the average machine having a normal revolution of 78 revolutions per ininute which can 'be increased or decreased if desired to change the tempo of the reproduce tion. The indicator stem .is yieldingly moved in onek direction by a coiled spring 49 which is fastened at one end to the bracket 45 and at the other end to the stem, and acts to return the indicator hand to zero when the machine stops, Ibut is not heavy enough to resist easy operation of the device when the machine is running. The indicator stem is provided with a collar 50 held in place by suitable means, such as a screw 51, and is provided with an eye 52 to Which is pivoted a bar 53 Which is in turn fastened to one end of a lever 54, such pivotal connection being shown at 55, the lever being pivoted intermediate of its ends, as'

at 56, to a suitable standard or post 57 and is provided on its other end with an engaging element 58, in the drawings this consisting of a pin which operates 'against the same face of the disk 28 as does the block 34, vand is thus kept lubricated, and as the disk moves along the governor4 shaft 21, the stud or pin 58 is also moved, being held lightly in cont-act Awith the disk by the action of the' spring 49. A means for stopping and starting the motor is provided, and-for this purpose I utilize tivo buttons 59 and 60 which project up=through the cover plate 42, in `the preferred form of machine, in order to properly and conveniently group the diferent adjusting and regulating members'. The buttons 59 and 69 are arranged on pins 61 and 62, respectively, these pins sliding through sleeves 63 and 64, the ends of the pins engaging a lever 65,'the leverv being adapted to rock las it is pivoted intermediate of its ends, as at 66, to a 'post 67. Proper locking means are provided for holding the buttons in two positions, as it will be evident that if one is presseddown the other is pushed up, and the one that is pushed up and is moreaccessible for use is the but-ton ping and starting of the machine. .p

The pin 62has:a spring 68 abutting against the sleeve 64` and lalso against a shoulder or washer 69 on the stem, and a.-

' (Ilffisgiarranged that itfisunf 'der a tension one wayof doing this being Ibending'f the spring around thel sleevesv f and 64, as will be clearlyf'evident fromFig l1'. The sleeve isy cut away as is Shown" more particularly in Fig. 7,*'this cut-away part .j71 permitting the end of lthe spring 70 to engage thevrec'es'sed part 72 in the-pin 6l. When the -button 59 is pushed down as in Fig. 6 the 'spring snaps into the cut-away part or annular recess 72 and holds the lever 65 down against the influence of the spring 68, but when the button 60 is pressed, the force exerted is sufiicie t to push the pin 61 up so as to force t eend of the spring 70 out of the depressed part 72, and

the spring 68 is then free to hold thepin 62 down and Ithe pin 61 up, which are the positions opposite to those shown in Fig. 6. Therocking lever 65 is suitably connected with 'a startigng and stopping means, in the 59 is pressed down 'and locked by the spring form shown this comprising a lever 7 3 which has one end 74 fitting inan eye 75 of the lever and is pivoted, as at 76, to the bearing` 23v and is provided with a block f77 which is forced against a disk 7 8 fastened to thegovernor shaft 21, this disk being 70it forces, through the medium of the lever the block 7 against the disk 78, and when 'the 'machine is to be Started, the button 60 is pushed down, the spring is displaced, the spring 68 is made operative-.which rocks the lever 65, and

.the lever 73 is i-n turn swung on its pivot "to pull 'the block 77 away from 'the disk 78 and the brake is released. As

the governor begins to rotate, the disk 28 is pulled so as to. push on the stud 58 and thus, through the connecting mechanism, swings the index, hand 48 so that the person using the machine can, when necessary,.as certain the speed at which the turntable is' rotating. If the speed of the machine is to be changed, the finger-piece-LO is rotated, and

it in turn, through connecting mechanism 'above described, changes the position of the block. 34 so as to shiftthe position of the disk 28 which not onlly vchanges the speed of the machine, but also cau-ses -a corresponding indication on the indicator 43 of the amount of change of the speed.

The device is simple to operate and it is substantially noisel'ess, and furthermore, it requires but little effort or motion to manipulate the stopping and starting devices.

The brake operating against the disk on the concentric exterior.

gbvernor shaft keeps the tension .tight k against tlieworxn 20, by. means of which the .i of gearing, or similar looseness which will make ,a noise when the machine is startedor stopped. 'This means of stopping is also preferable over a brake act-ing against the turn-table, since it does not cause any noise due to lost motion when such stopping occurs, since brakes on turntables usually have a. noise resulting from .this looseness when the brake is applied to Ithe turntable, and the stem on which the turntable is mounted has a slight motion in relation to the turntable and this causes a click or slight thud.

As a further means of eliminating noise in the phonograph, I provide the arbor 80 on the spring barrels with a locking means which does not click when the machine is wound up. The arbor is provided, as isusual in machines of this kind, with a remov able crank, `the shank 81 of which fits into a screw-threaded recess 82 'at the end of the arbor. A bracket 83 is placed adjacent to the end' of the arbor 80, which is provided at this end with an enlarge-ment 84: having a The bracket 83 has an eccentric interior face 85, and between the exterior face of the enlarged part 84 and the face 85 is a roller 86 which being forced, by reverse rotation of the arbor 80, between the converging surfaces 84: and 85, binds the arbor against Vfurther reverse rotation, the binding `action of the roller 86 upon such reverse rotation being insured 'by the spring 87 encircling a pin 88 having its inner end provided with a sm'all shoe 89 which engages the roller 861:0 force it into position. When, however, the arbor is rotated to wind up the springs in the motor, the roller 86 rotates, since the tendency of the friction thereon is to move it against the light spring 87 and into the larger part of the recess between the outer face 84 and the inner face 85 of the arbor and bracket respectively. The absence ofl any pawls or ratchets, or any other clicking parts, provides for a noiseless winding of the m'otor. v

' Having thus described my invention, I claim: 4 1. A phonograph comprising a motor, a

brake on the motor, a lever for operating the brake, a sliding stem for starting the motor, a sliding stem for stopping the motor, ya rocking lever with which said stems are engaged whereby when one is pushed the other is raised,'said rocking lever and the lever being connected, a springencincling one of said stems, and yielding means on the other of said stems to lock the stems against the influence of the spring.

2. A phonograph comprising a motor, a brake on the motor, a ylever for operating 'the brake, e sliding stem for starting the motor, a sliding stem for stopping the motor, a rocking kever with which :sa'id'stems are engaged whereby when one is pushed the other is raised7 said rocking lever and the lever being connected, a spring encircling one of said erns, a stud on lwhich the rocking lever is pivoted, a. spring bearing on the stud and megane having its other end adapted to engageone of said stems, said stem having a recess in which the last mentioned spring can be parary, 1917.

- GEORGE J. ZISCH.

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