US929253A - Feeding device and brake for sound-reproducing machines. - Google Patents

Description

- x P. SHEPPY. FEEDING DEVICE AND BRAKE FOR SOUND BBPBODUGING MACHINES. APPLIOATION FILED. MAY 27, 1907.

99,253 Patented July 27, 1909.

2 SHEETS-SHEET 1- WF NEEEEE F. SHEP P Y. FEEDING DEVIGE AND BRAKE FOR SOUND REPRODUGING MACHINES.

APPLICATION FILED MAY 37, 1907. 4

Patented Jul 27,1909.

2 SHEETS-SHEET z.

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FREDERICK snnrrv, or onIcAco; ILLINoIs, AssIeNoR, BY MEsNE ASSIGNMENTS, TO HAW- THORNE & SHEBLE MANUFACTURING COMPANY, or PHI ADELPH A, PENNSYLVANIA,

' A CORPORATION OF PENNSYLVANIA.

FEEDING. DEVICE AND BRAKE FOR SC"UND'-REPRUDUGING Specification of Letters Patent.

Patented July 27, 1909.

Application filed May 27, 1907. I Seria1No. 375,817.

To all whom it may concern:

Be it known that I, FREDERICK SI-IEPPY, a subject of the King of Great Britain, residing at Chicago, in the county of Cook and State of lllinois, have invented certain new and useful Improvements in Feeding Devices and Brakes for Sound-Reproducing lllachines, of. which the following is a specification.

My inventionrelates to. sound reproducing machines and has special reference to devices for automatically stopping the move: ment of the record simultaneously with the completion. of the reproduction. My appliance is especially applicable to that. class of apparatus commonly termed talking machines, the appliance itself being known as alorake. I

A very serious disadvantage encountered while operating any form of talking machine is the inability to judge properlyof the exact moment when the sound reproduction will cease. This fact requires that there should be aconstant supervision of the mechanical movements and even when close attention is given thereto it is found difficult to terminate the movement of the record synchronously with the cessation of the sound production. l

The chief objects of my invention are to provide a brake for talking machines that will automatically stop the record movement by frictional contact of the brake member therewith at the termination of the sound reproduction; to provide an automatic record brake for talking machines that can be readily attached to the instrument without disfiguring the casing or marring the finish in any way; and to produce an ctl'ective automatic brake for the purpose stated that is so designed that it will be equally eli'eclive when applied to instruments of dili' rent Sizes.

I accomplish the above and other minor objects by the employment of the apparatus illustrated in the accompanying drawii'igs which form a part of this specification, and in which:

Figure 1 is a side elevation of a talking machine with my improved automatic brake attached thereto; 'Fig. 2 is a plan view with a portion of the swinging arm broken away lodisolose the parts of the. mechanism bcneath; Fig. 3 is a plan view showing the brake-shoe in engagement with the periphcry of the record-disk, the stylus having been-disengaged from the record groove Fig. e is a front view of a sound reproducing instrument showing method of attaching the automatic brake, and Fig. fi'isu'perspective view of the clip forsupporting the brake lever.

Referring to the drawings in detail, the numeral IO'iudicates the casing of a talking machine, and 11a record-disk which is held by the end of. the motor driven shaft 12 concentric with the table 18 in the usual manner. l he usual arm support 14., fixed to a plate -15is secured intheordinar-y way t-o'the casinglO by screws 16. The. horn=or swinging arm 1 is of the common form and carries a sound box from which projects a needle'or stylus 18 adapted to engage the spiral, sound groove of the recorddisk 11.

A bracket 19 is furnished with a slot '20 adapted ,to receive one of the screws 16, by means of which the bracket is removably 'at tached to the instrument, the said slot permitting a vertical adjustment. QA clip 21 is secured to the horizontal arm of the bracket 19 by a screw/ 22 provided with a winged nut 52?), said screw passing through a slot 2 in the lower arm of saidclip. The upper arm 24 supports a brake lever which is pivotally connected to said arm by a pivot screw 26.

Near the middle of said brake lever 25 is attached a short horizontal arm 27 scour d 'by a screw 28. Upon this arm rests a plate ilthaving a slot 30 through which passes a screw 31 to secure said plate to the arm 27. The plate 29 carries a lever 32 the tree extremity of which rests upon a detent arm 33 fixed to the lever 25, the margin of said lever 32 engaging notches 34 in the detent arm. A finger 35 depends from a ring or band 5"?) which encircles the-horn 17, said linger serving as a guide to control the brake lever. the latter being held in yielding contact with said guide 35 by a coiled spring 37 which is attached at one end to a pin 3% depending from the under side of the lever 25, and at the other is secured to the t'rcecnd otan adjustublc linger 53f thcrfixcd cnd 4t) oi saidfiin gcr bcingbent in a sharp curve and sccurcdito lib the upright portion of the clip 21 by a screw The parts of the device having been as sembled upon the bracket 19, to attach the brake to an instrument it is only necessary to remove one of the screws 16, and apply the bracket to the plate 15 in themanner shown in the drawings, and attach the ring 36 carrying the operating finger 35 to the swinging arm 17. The slot 20 will permit of sufficient vertical adjustment to suit all sizesof instruments and the slot 23 in the clip. 21

will accommodate the lever 25-to' the various diameters of record disks. When the needle 18 engages the sound groove near the outer margin ofthe record disk as'illustrated in Fig. 2, the finger '35 will engage the brake lever 25 at some point beyondthe arm 27, and the finger-supporting ring 36 must be placed in such a position upon the arm 17 that the finger -35 will exert ,sufiicient pres sure against the brake lever'to maintain a slight interval betweenthe brake shoe and the peripheral face of the turn table 13.

With the ordinary type of talking machine the reproducing needle through its engagement with the sound groove carries the sound box over the face of the record causing more wear upon the outer bank of said sound groove than upon the inner banks In the device under consideration, however, the lever 25, which is pressed against the finger 35 by the spring 37 causes the-needle 18 to exert a force against the inner bank of the sound groove, The said spring can be so adjusted as to overcome the inward pressure thereby centralizing the needle in the record groove and producing equal wear upon both banks of the sound groove which has the effect of prolonging the life ofthe record.

While the needle is being propelled toward the center of the record, the finger 35 will move along the margin of the lever 25 and there will be a slight movement of the said lever upon its center, such movement being due to the angle at which the brake arm is set against the movement of the swinging arm. As soon as the needle has reached the terminus of the sound groove, however, it is released from the confining walls of the,

groove, and rides upon the plain portion ofthe record and is free to swing quickly inward from the pressure of the spring37 against the finger 35 attached to the swinging arm. The finger will now rest against the arm 27 which forms a. stop therefor and holds the needle 18 at the desired location upon the blank portion of the record. Under ordinary conditions a thumb brake is used to start or stop the revolutions of the turn table, but the necessity for such brake is entirely obviated by the use of tliis improved form of braking device.

I At certain times during the "operation of the machine and especiallywhen changing the needle, the sound box is -carried oute" wardly away fromthe record so that the needle is entirely-disengaged from the sound groove. Under these conditions the curvedpoi'tion of the distal end of the lever 25 will re'cede'from the path ofthe finger 35- sufiie ciently' to permit the opposite end of said lever carrying the brake shoe to enga e the periphery of the turn table with su cient. force to'stopits movement. When the sound ban is again moved into engagement with Jthe.record to be played, the finger135 will impinge againstthat portion of the said lever which-lies adjacent to the stop 27 thereby ;releasing the turn table and permitting the iecord-to revolve.

'It will be understood that the replacement ,of the needle in its 'initial position at the ,beginnin intermediate point upon the record will of the record groove,or at any Causet-he brake lever to be restored to its first position through the engaging action of the finger .35, and the brake. shoe will be removed from contact with the disk.

The function of the lever 32 is to change the path of the finger 35 when disks of different diameters are used, the end of said lever being changed from one notch to the other according-to the size of. the disk employed.v

It 'is ev1dent that "many changes may be made in the devices of my invention as herein disclosed without departing from the spirit and scope thereof, and I do not wish, therefore, to be limited to the precise construction set forth.

Having thus described my invention what- I claim is 1. A talking-machine having a motor-box, a turntable, a sound-conveying tube pivotally mounted on the motor-box, a. lever pivotally mounted on the motor-box, resilient means for moving said lever in one direction during and .in accordance" with the movement of said tube, and a brake for the turntable operated by said lever.

2. A talking-machine having a casing, a sound-conveying tube pivotally mounted thereon, a member secured to said casing.

means for adjusting the position of said member, a-brake lever pivoted to said member,- a spring for moving said lever in one direction and a finger removablysecured to position of said bracket, a brake lever supported on said bracket and adapted to frictionally inovably attached to the soundconveying 5 tnbe'and en aging said brake lever and a stop for sai finger carried by said brake lever, substantially asset forth. 4. A talking machine having a casing, a sound-conveying tube pivotally mounted 1G thereon, a turn-table, a bracket removably secured to said casing, means for adjusting said bracket, a brake lever pivoted to said bracket, means for adjusting said brake lever relative to the bracket, an adjustable spring 15 connected to said lever, a finger detachably connected to said sound-conveying tube and coacting with said lever, a stop for saidfinger carried by the brake lever, and means for adjusting the position of said stop, sub-" sta-ntially as described.

5. A talking-machine having a motor-box, a turntable, a' sound-conveying tube pivotally mounted on the motor-box, a lever coacting with said tube, nieans for permitting an adjustment of the position of said lever, a spring for moving said lever in one direction during and in accordance with the movement of said tube, and 'a brake for the turntableoperated by said lever.

30 6. A talk ng-machine having a motor-box,

a: turntable, a sound-conveying tube pivot-v ally mounted on the motor-box, a lever coacting with said tube, a stop on said lever, a spring for moving said lever in one direction during and in accordance with the movement of said tube, and a brake for the turntable operated by said lever.'

7. A talking-machine having a motor-box, a turntable, a sound-conveyingvtube pivota'lly mounted on said box, a bracket adjustably mounted on the box, a lever pivoted on said bracket and adjustable thereon, said lever 'coacting with said tube, a spring .for moving said lever in one direction during and in accordance with the movementof said tube, and a brake for the turntable operated by saidlever.

8. In a sound reproducing machinethe combimition with a record carrying body, a'

coinininnis spiral groove on said body adapted to contain the record, a stylus adapted .to pass over said record and to. be guided by said groove in a predetermined direction; of \iolding means'ada n ed to move said stylus over said record in said direction in cooperation with the groove, and to continue engage said turn-table, a'finger re-.

it has left said 111g means operatively connected with said,

arm adapted to move said box over said record in said direction in cooperation with said groove, and to continue to movesaid 'stylus after it has left said groove.

10. In a sound reproducing machine'the combination with a record table, a record carrying body on said table, a continuous spiral groove on said body adapted to contain the record, a stylus adapted to pass over said record and to be guided by sald groove, in a predetermined direction, means for supporting said stylus adapted to move with said stylus, and a stop member for said table adapted to be operated by the movement "of said supporting means, after thestylus has passed said record; of yielding means adapt; ed to move said stylus over said record in said direction in cooperation with said groove and to-continue to move said stylus after it has left said groove to operate stop member.

11. In a sound reproducing machine the combination with a record table, a record carrying body on said table, a continuous spiral groove on said body adapted to contain the record,a sound box adapted to pass over said record and to-be guided by said groove in a predetermined direction, an arm supporting said sound box at one end and suitably lvoted at the other end, and a stop member ii)! said table adapted to be operated by the movement of said arm, atter said box has passed over said record, of a spring operat vely connected with said arm adapted to move said box over said record in said direction in cooperation with said groove and to' continue moving said box after leaving said groove tooperate said member.

In testimony whereof l af'ix my signature in the presence of two Will sses.

FREDERICK SH E P? Y lVitnesses:

C. 13. BENJAMIN M. A. Minoan.

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