US1219144A

US1219144A - Repeater for talking-machines.

Info

Publication number: US1219144A
Application number: US10497316A
Authority: US
Inventors: John Para
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-06-21
Filing date: 1916-06-21
Publication date: 1917-03-13
Anticipated expiration: 1934-03-13

Description

J. PARA.

REPEATE'R FOR TALKING MACHINES.

APPLICAHON FILED JUNEZI. 1916.

Patentml Mar. 13, 191?.

5 SHEETS-SHEET I,

' AUTO/M152"? 1-. PARA.

'REPEATEH FOR TA LKING MACHINES.

APPLICATION FILED IUNEZI, 1916.

1,219,144 Patented Mar.13, 1917.

I SHEETS-SHEET 2- J. PARA.

REPEATER FOR TALKING MACHINES.

APPLICATION FILED mu: 21,1916.

Patented Mar. 13, 1917.

5 SHEETSSHEET 3.

J, PARA.

REPEATER FOR TALKING-MACHINES.

APPLICATION FILED JUNE 21, I916.

1,21 9,144. Patented Mar. 13,1917

5 SHEETS-SHEET 4.

WITNESSES e/a/z/z PW -%M 1, 87

@M I ATTORNEYS I J. PARA.

REPEATER FOR TALKING MACHINES.

APPLICATIQN FILED JUNE 21.19161 q o 1,21 9,144. Patented Mar. L), 191;.

15WWIWIUHIHHHHIIIHHHHHHIHTHWAa 76- 7/3 WI 4 e37 if I M S I W 8 JOHN PARA OF ELIZABETH, NEW J ERSEY.

Specification of Letters Patent.

REPEATER FOR TALKING-MACHINES.

Patented Mar. 13, 193.2.

Application filed June 21,, 1916. Serial No. 1%,973.

To all whom it may concern:

Be it known that I, J OHN PARA, a citizen of the United States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have invented a new and Improved Repeater for Talking-Machines, of. which the following is a' full, clear, and exact description.

Among the principal objects which the present invention has in view are: to automatically replace the recording needle used in talking machines at the beginning of a record groove of a record'disk; to automatically control the number of repetitions and the operation of the mechanism effecting' the same; to set the mechanism to a point where it is intended that the repetition should be inaugurated; and to avoid discordant, harsh, or violent sounds when disengaging the needle from and when engaging it with the record disk.

Drawings.

etet in Fig. 3;

Fig. 5 is a side view of a fragment of a resonating horn and an elevating table connected therewith for operating the needlelifting mechanism;

Fig. 6 is a longitudinal section on an enlarged scale, the section being taken as on the line 6-6 in Fig. 1; f I

Fig. 7 is a vertical section taken as on the line 7-7 in'Fig. 6.

Fig. 8 is a horizontal section of the brake mechanism with which the talking machine is provided, the section being taken as on the line 88 in Fig. .9;

Fi 9 is a vertical" section taken as on the hue 9- -9 in Fig. -8;

Fig. 10 is a vertical section taken as on the line l010 in Fig. 8;

Fig. 11 is a top plan view of a talking machine of conventional type having tit-'12}; tached thereto a modified form of the lift-' ing mechanism;

Fig. 12 is a side view of the same.

Description.

As seen in the drawings, the repeater i comprises a mechanism permanently installed on. a talking machine. The major portion of the mechanism is preferably disposed between the rotary table 12 and the case top 13, as best seen in Fig. 6 of the drawings. Upon the motor shaft 1 and '70 at the base of the pintle end 15 whereof the table 12 is mounted, is rigidly secured a gear wheel 16, by which the repeater mechanism is actuated.

The mechanism referred to is mounted on a base plate 17, which is permanently secured by screws 18, to the top 13. A driving wheel 19 and rack bar 20 are mounted on the said base plate, and are operatively connected by a pinion 21 rigidly secured on the wheel 19. The teeth of the pinion 21 are permanently meshed withthe toothed section of the bar 20. The bar 20 is slidably mounted in bearings 22. The forward end of the said bar is operatively connected with a link 23. The link 23 connects a bell crank lever 24: and the slotted link 25 pivotallymounted thereon, with the said rack bar.

The rack bar 20 and link 23 connected therewith, are normally retracted by a spring 26. The speed with which the/ha r 20 is retracted is regulated by an opening- 27 in a dash pot 28. To this end, the bar 20 enters the dash pot and is provided with a piston 29 in thesaid dash pot. A suitable valve mechanism is employed for permitting the free entrance of air to the dash pot while retarding the exhaust thereof, or, in other words, the rod 20 is held free to we move forward and is controlled in its retractive movement. The dash pot is held rigidly on the plate 1.7 by means of straps 80.

To move the bar 20 forward in the direction indicated by arrows in Figs. 1 and 2,

the wheel 19 is operatively connected with the Wheel 16 by means of a pinion 31'. For m this purpose, the pinion 31 is rotatively supported on a rocking plate 32, a stud shaft being employed to support the wheel thereon. The plate 32 is pivotally mounted by the shaft 3% of the wheel 19, which plate is rocked by means of an adjustable rod 35. The rod is pivotally connected with said plate 32, by a screw pin 36, while the opposite end of said rod has a sliding connection with a pin 37 in the tail-piece 38 of the rocking plate 39. The plate 39 is pivotally held on the plate 17 by the screw 40.

The plate 32 is moved by a spring 41, to the position as shown in Fig. 2 of the drawings, where the pinion 31 engages the wheels 16 and 1.9 to transmit the forward movement to the bar 20. The function of the rod 33 is to rock the plate 32 to disengage the pinion 31 from the wheel 16, when the plate 39 is rocked to move the tailpiece 38 in a (lire-(thin commensurate with this action.

When thus rocked, the plate 32 is held by a s]' )ring-actuatcd latch -12, which engages a pin l3 to hold the plate in the position described.

ltwil be understood when the plate 32 is thus moved and during the period when the latch l2 holds said plate, when the pinion 3] is disengaged from the wheel 16, that the spring 26 operates to retract the bar 29 and parts connected therewith, and at a rate of speed regulated by the operation of the dash pot 28.

By reference to the drawings, Fig. 1, it will be observed that in said figure, the rod 20 and parts connected therewith have been fully retracted, and the plate 32 is held by the latch 42 and pin 43 in position where the pinion 31 is disengaged from the wheel it). This is the result of the operation of: the parts above described, and particularly ot the spring 26 connected therewith. It will also be observed that the plate 39 has been rocked on the screw 40, to move the tail-piece 33 inward, and that the screw 37 on the said tail-piece reposes at the inner end of a slot l-twith which the bar i5 is furnished to permit the necessary amount oi lost motion at this point.

ll, will also be observed that a trigger plate t5 has been rocked on its pivot -16, so tha he cam-shaped head thereof has been removed from a pin 47 on the latch 42, to permit the same to move forward to engage the pin i l on the plate 32. The plate is operated through the i'nediun'i of a connecting rod which is opcratively connected with the tailpiecc Tothe position just above described as show in Fig. 1 of the drawings, the plate P9 has been moved by pressure exerted on the arm 49 by a roller-provided pin 50 at the end of an actuating arm 51. As best shown in Fig. 3 of the drawings, the arm 51 is extended from a bracket 52, which is rigidly secured by screws 53, to the tone arm 54 of the talking machine. It is obvious that the arm 51 moves with the tone arm 54, and that the position of the pin 50 has a definite relatioft at all times with the said tone arm. Therefore, when the needle or stylus of the reproducer of a talking machine is in position to enter a record groove on a record disk, the arm 4-9 must be adjusted to engage the pin 50 irrespective of the position of the plate 39. To this end, the said arm 49 is pivoted on the plate 39, and is held in frictional engagement therewith by a clamp plate The. plate 55 is normally held by a spring 56 to fix the adjusted position of the arms 4-9 and 57. The

arms

49 and 57 turn on the pivots 5S and 59. These arms are normally drawn together by a spring 60. The inactive disposition of the arms is illustrated in Fig. l of the drawings, where the said arms are both in contact with the roller on the pin 50.

When setting the

arms

49 and 57, the retaining pin 61 is lifted, the spring 56 being compressed in this operation. To lift the pin (31, a lever (32 is employed, which lever is pivoted in a bracket 63 secured to the under side of the top 13 and to a plunger til. The plunger (it is depressed by the operator resting his linger on the exposed head 65.

In the drawings, the type of tone arm illustrated is that which has a pivoted section tit"). the forward end of which may be elevated and depressed above and upon the table 12 and a record disk thereon. The section (it? swings on pivots 67, which are shown best in Fig. 3.

\Vhen adapting the repeater mechanism to machines having this type of tone arm, the section 66 is provided with a plate (38, which is normally supported upon a. roller 69 H'lOlHltOtl in the short end of a lever 70. The, long end. of the lever has a pin 71, which is engaged by the end of a rocking lever 72. The rocking lever 72 is pivotally connected with a lifter 73. The lifter 73 passes freely through a perforationin the arm 51 and through an opening 7 in the top 13. At: the lower end of the lifter 73, a roller 75 is provided, which roller tracks on a rail 76. The rail 76 is elevated when the rollers 77 are forced under the inclines 78 with which the said rail is provided. The rail 76 and rollers 77 are normally supported on the bench 79 rigidly secured to and set out from the resonating born 30. The position of the rail 76 in re lation to the bench 79 is maintained definitely by the pendent arms 81 with which said rail is provided. The bench 79 is perforated to permit the extension there through of the arms 81, as best seen in Fig. 5 of the drawings. The rollers 77 are mounted on shaft pins 82, the ends whereof are rigidly secured to side bars 83. The side bars 83. and rail 7 6 are concentric with the horn 80, as shown best in Fig. 4- of the drawings.

To shift the carriage formed by the side bars 83, shaft pins 82, and rollers 77, the outer side bar 83 is provided with a connecting lug 8 1, which is pivotally attached to and supports one end of a connecting link 85. The link 85 is engaged by the arm 80 of a rocking shaft 87. The shaft 87 passes through a bearing boss 88 and the top 13 supporting the said boss. To the upper end of the shaft 87 is rigidly connected the lever 24, which, as previously indicated, is rocked by the operation of the bar 20, when the same is advanced in the direction of the arrow associated with the said bar in Fig. 2 of the drawings, which happens when the pinion 31 is moved into. engagement with the wheel 16, as above indicated. As shown in Fig. 2, this occurs when the arm 51 and roller pin 50 thereon have engaged the arm 57 and rocked the plate 39. g

It will be observed that the slot 89 in the link 25'is sufliciently long to provide that the end thereof does not engage the lifter 73 until the lever 24: and shaft 87 connected therewith have been rocked to advance the arm 86, the link 85, and side bars 83 connected therewith, so that the rollers 7 7 have elevated the lifter 73, to the end that the pivoted section 00 is lifted by the operation of the lever 7 0 and roller 09 thereon.

Coinciding in time with this operation,

the inner end of the slot 89 engages the anent. The brake lever 90 is pivotally mounted on a shaft91, as shown best in Fig. 8 of the drawings. A spring 92 is wrapped on the shaft 91, and said spring is anchored at one end in a, case 98, and the other end engages a pin 94 011 the brake lever adjacent the brake shoe 95 thereof .Vhen unrestrained, the spring 92 seats the shoe 95 against the edge of the table 12 in a gianner conventional to machines of the character here mentioned.

To restrain the operation of the spring 92 and to hold the shoe 95 away from the said table 12, is the function of a rocking lever 90 mounted on a shaft 97 supported by the side wall of the case 93, as seen'best in Fig. 9 of the drawings. The lever 96 has at the upper end thereof, a cross head 98, which is extensible in the path'of a pin 99 extended from the underside of the lever 90. Thelever 90 is rocked on its pivot 97, to insert the cross head 98 in the path of the pin 99 when the disk 100 is rotated underthe wheel 101 with which the lower end of the said lever is provided. The disk 100 above mentioned is moved b\; a sector 102. As shown best in Fig. 1,

the sector 102 is operatively connected by a rod 103, with a latch plate 101- pivotally mounted by a screw 105 on the base plate 17. The plate 10% is rocked on its pivot when a pin 106 on the bar '20 engages a latch 107 which happens each time the bar 20 is moved forward by the mechanism, using the wheel 16 as a driving wheel: The latch 107 is provided with a spring 108, which normally returns the latch 107 to rest against a stop pin 109. The latch 107 yields to permit the passage of the pin 106 when the bar 20 is retracted. The latch plate 101 is normally held by a pin 110 when retracted by a spring 111. It is obvious that repeated reciprocations of the rod 103 result in successive engagement by the pawl 112, of the teeth on the extension 113, which rotates the disk 100 in correspondencewith the reciprocation of the rod 103 and the bar 20.

The teeth of the extension above mentioned are so arranged that when thepawl 112 moves the disk 100 by engaging the last of the said teeth, the said disk is then moved from under the roller 101 and the spring 92 is then permitted to revolve the lever 90 to seat the shaft against the edge of the table 12. The lever 90 in moving to seat the brake, rocks the lever 90 to the extent that the head 98 is removed from the path of the pin 99 on the lever. i

'To free the disk from engagement with the pawl 112, so that the disk may be set for the following operation, the lever 90 has a dependent arm 114, on the end whereof a shoe 115 is mounted, which shoe wedges in front of a pin on the pawl 112, to move the spur of the said pawl out of engagement with the teeth of the extension 113. The disk 100 is now free to be adjusted, which is accomplished by the operator manipulating the milled nut 116 to move the pointer 117 to register with the calibration 118 on the top of the case 93.

Operation.

When a talking machine is provided with a repeater mechanism such as above described, the operation is as follows: The attendant after placing on the table 12, a record disk, depresses the head 65. This relieves the pressure of the spring 56 on the plate 55, and permits the spring 60 to draw the

arms

19 and 57 into contact with the roller of the pin 50. After now releasing the head 65, the attendant moves the tone arm and section 66 thereof until the needle or stylus of the sound box is disposed at the entrance end of the record groove of the record disk. The plate 55 presses on the

arms

49 and 57, causing the same to frictionally engage the plate 39 which is moved with the arm 49 as the same is carried outward by the pin in correspondence with the setting of the needle with reference to the record groove of the record disk. The plate 39 and tail-piece 38 thereof, is arrested by the stop pin 128 prior to the suspension of movement of the arm 49, which in the last end of the movement of the pin 50, is forcibly moved overcoming the friction of the plate It will be noted at this time that force being applied by the pin 50 on the arm 49 only, the arm 57 is detained during the last part of the adjusting movement of the tone arm and pin 50 operatively connected therewith when setting the reproducing needle at the entrance end of the record groove.

It will be observed that when the movement of the plate 39 and the tail-piece 38 thereof is arrested by the pin 128, the plate 45 has been rocked to disengage the latch 42 from the pin 43, and that theplate 32 has been moved to disengage the gear wheel 16 and pinion 31, or, in other words, the release of the shifting mechanism is insured when the reproducing needle is thereafter moved to aline with the entrance end of the record groove.

The tone arm and reproducing needle carried thereby are now moved to positions where the reproducing needle coincides with the finishing end of the record groove.

The plate operating on the

arms

49, 57 and 39 retain them in the positions above described and as shown in Fig. 1 of the drawings. The arm 57 being now engaged by the pin 50, the plate 39, tail-piece 38 thereof, and rods 35 and -18 connected therewith are swung about the pivot screw 40 until the tailpiece 38 engages a stop pin 129. It will be observed that in this action, the arm 49 is moved to a position nearer the center of the record groove than that to which it was previouslv moved when setting it for operating.

\Vhen the plate 39 and parts connected there,\\-'ith are now arrested by the pin 129, the continued movement of the tone arm, record needle connected therewith, and pin 50, operatively connected with said tone arm, forcibly separates the arm 57 to a further degree from the arm 19 and to a position where. it. coincides with the operating position of the reproducing needle of the talking machine at the end of the record groove.

It will be observed that when adjusting the arm as above described, the plate 39 and tail-piece 38 connected therewith are rocked to engage the stop pin 129, the

rods

48 and 35 functioning to remove the latch 42 from engagement with the pin 43, to permit the spring 41 to rock the plate 32 and pinion 31 thereon to engage the said pinion with the gear wheel 16. This, it will be observed, is the operating position for the transmission mechanism. It will likewise be observed that the power mechanism not being released at the time of setting the record needle. the engagement of the pinion 31 and gear wheel 16 has no effect. The talking machine and the repeating mechanism are now in position for operation. The

arms

49 and 57 will thereafter remain in the positions substantially as shown in Fig. 2 of the drawings. The attendant now engages the milled nut 116, and uses the same for turning the pointer 117 to register with one or other of the markings on the calibration 118. These markings will indicate whether the epetition is to be once, twice, or more times. The tone arm having been returned to the starting position, the attendant releases the brake, using the lever 90 for this purpose.

In the backward movement'of the lever 90, the pin 99 passes over the head 98 of the lever 96, the said lever yielding to that effect. When the attendant shifted the pointer 117, he moved the disk 100 under the wheel 101 on the said lever 96, which is now in position to hold the lever 90 in its retracted or open-brake position.

The motor of the talking machine now revolves the table 12, and the record disk parts connected therewith. and of the arm 51, rocks the plate 39, and through the medium of the rod and plate 32, places the pinion 31 in engagement with the wheel 16.

Immediately on engaging the pinion 31 and wheel 16, the rack bar 20 is moved forward. The arm 86 operates to first elevate the lifter 73 and the outer end of the section This prepares' the said section 66 for the engagement of the link with the lifter 73, and the movement of the tone arm and parts connected therewith to adjacent the outer edge of the record disk, where the n edle, of the tone box registers with the first or outermost convolution of the record 7 slot.

Just prior to the termination of the outer movement of the tone arm, the roller on the pin 50 engages the arm 49, and by means of it, rocks the plate 39 to disengage the pinion 31 from the heel 16. 'As previously stated, this action permits the spring 26 to retract, the bar 20, lever 24, arm 86,. and parts connected therewith. The rapidity of this movement is modified by the dash pot' in the manner aboveindicated, with the resnltthat the outer end of the section 66 and the sound box mounted thereon, are lowered until the needle engages the record disk, thereby avoiding a sudden engagement of the disk by the said needle.

It will be observed that as the bar 20 was advanced on the first occasion, the pin 106 operated. the plate 10st and the sector 102 connected thermvith, to rotate the disk 100 a. single step. It will be understood that when new the mechanism is again actuated at the completion of the second repetition, the bar 20 will be advanced and the sector 102 rotated another step. If the pointer 117 has been adjusted to indicate two repetitions, the second advance of the sector 102 will carry the disk 100 from engagement with the roller 101 and permit the lever 96 to release the pin 99 and brake lever 90 connected therewith. The spring 92 will immediately set the b 'akc and arrest the table 12 and sustain the operation of the talking machine.

In Figs. 12 and 13, there is shown a modified form of the mechanism which is adapted for lifting the tone tube and sound box attached thereto when constructed and arranged in accordance with what is known as the Victor type of talking machine. The modification consists in providing the lifter 73 and in attaching the same to a bell crank. Theshort arm of the bell crank 119 is connected by a rod 120 to a rocking lever 121. As shown best in Fig. 11, the rocking lever 121 pivoted by a pin 122 on a bracket 123. The bracket 123 has a body portion 124, by which it is secured to'the tone arm 125. The body portion 12% furnishes a guide bearing for the rod 190 when the same is reciprocated by the operation of the lever 119.

The rocking lever 121 normally engages a pin 1% pendent from the under side of the pivotal. extension of the tone tube 127.

The operation of the modified form of the mechanism is as follows: l Vhen the lifter 73 is elevated by the rail 76, the lever 119 is rocked todraw the rod 120 rearwardly. The lever 121 is thereby rocked on. its pin 122, with the result that the free end of the lover 121 presses forwardly upon the pin 126 to rotate the pivotal extension of the tube 127, so that the end of said tube carrying the sound box 128 is elevated.

(C int ms.

1. A repeater as characterized comprising a transmission .mechanism pern'ianentl y disposed on the frame of a talking machine; means for temporarily opeiatively engaging and disengaging said transmission mechanisin and the driving shaft of a talking machine, said means embodying, a member moved in correspondence with the tone arm of said talking machine; and means for operatively connecting said transmission mechanism andsaid tone arm for returning the tone arm'to its initiatory position.

2. A repeater as cluiracterized comprising a transmission mechanism permanently disposed on the frame of a talking machine;

- means for temporarily operativcly engaging and disengaging said transmission mechanism and the driving shaft of a talking machine, said means embodying a member moved in correspondence with the tone arm.

of said talking machineand means for operatively connecting said transmission mechanism and said tone arm for returning the tone arm to its initiatory position, said means embodying a connecting link having an elongated engagement slot for engaging the tone arm for movement in one direction only.

3. A repeater as characterized comprising a transmission mechanism permanently disposed on the f *ameof atalking machine;

means for temporarily opcratively engaging and disengaging said transn'iission mechanism and the driving shaft of a talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission mechanism and said tone arm for returnin the tone arm to its initial position; and automatic means for returning the transmission mechanism to its initial position when disengaged from said driving shaft.

1. A repeater as clniractcrizcd comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operativcly engaging and disengaging said transmissionmechanism and the drivin shaft of a talking machine, said means embodying a member moved in correspondence with the one arm of said talking machine; means for operatively connecting said transmission mechanism and said tone arm for returning the tone arm to its initial position; automatic means for returning'thc transmission mechanism to its initial position when disengaged from said driving shaft; and means for regulating the speed of retraction of said transmission mechanism.

5'. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of atalking machine; means for temporarily operativcly engaging and disengaging said transmission mech- .an'ism and the driving shaft of a talking machine, said means embodying a member "moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission mochanism and said tone arm for returning the tone arm to its initial position; automatic means for returning the transmission mech anism to its initial position when disengaged from said driving shaft; and means for regulating the speed of retraction of said transmission mechanism said means embodying a dash pot operatively connected with a plungerof said transmission mechanism.

6. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of the talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission.mcchanism and said tone arm for returning the tone arm to its initial position; automatic means for returning the transmission mechanism to its initial position when disengaged from said driving shaft; and means for regulating the speed of retraction of said transmission mechanism, said means embodying a mechanism for yielding slowly in the direction of retraction.

7-. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operatively engaging -and disengaging said transmission mechanismand the driving shaft of the talking machine; means for operatively connecting said transmission mechanism and said tone arm for returning the tone arm to its initial position; automatic means for returning the transmission mechanism to its initial position when disengaged from said driving shaft: a turn-table for supporting record disks; a brake for arresting said turn-table: means for restraining said brake: and means operatively connecting said transmission mechanism and said restraining means for actuating the same to release said brake.

S. A repeater as characterized comprising a transmission mechanism pern'nuiently disposed on the frame of a talking machine; means for temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of the talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operativel v connecting said "transmission mechanism and said tone arm for returning the torn arm to its initial position; a turn-table for supporting record disks; a brake for arresting said turn-table; means for restrainin; said brake, said means being adapted for movement progressively toward a releasing position; and means operatively connecting said restraining means and trans mission mechanism for progressively operating said restraining means in correspondence with the operations of said transmis sion mechanism.

9. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine;

means for: temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of the talking machine; means for operatively connecting said transi'nission mechanism and said tone arm for returning the tone arm to its initial position; automatic means for returning the transmission mechanism to its initial position when disengaged from said driving shaft; a turn-table for supporting record disks; a brake for arresting said turn-table; arestraining mechanism for said brake, cmbodying a releasing mechanism operated step by step to releasing position; and means operatively connecting said transmission mechanism and said releasing mechanism for operating said releasing mechanism step by step toward the releasing position thereof.

10. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operativcly engaging and disengaging said transmission mechanism and the driving shaft of the talking machine; means for operatively connecting said transmission mechanism and said tone arm for returning said tone arm to its initial position; automatic means for retm'ning the transmission mechanism to its initial position when disengaged from said driving shaft; a turn-table for supporting record disks: a brake for arresting said turn-table; a restraining mechanism for said brake, embodying a releasing mechanism operated step by step to releasing position; means operatively connecting said transmission mocha nism and said releasing mechanism for opcrating said releasing mechanism step by step toward the releasing position thereof; and means for manually adjusting said toleasingmechanism for determining the number of operations necessary to release said brake.

11; A repeater as characterized eomprising a transmission mechanism permanently disposed on the frame of a talking machine; means for operatively connecting said transmission mechanism and the tone arm of said talking machine for returning the tone arm to its initiatory positionrsaid means embodying a transmission train consisting of a driving wheel mounted on said driving shaft, a driving wheel of said transmission mechanism, and a roving pinion adapted to be moved into engagement-with said driving wheels; and means for temporarily operatively engaging and disengaging said ion mechanism, and a roving pinion adapted to be moved into engagement with said driving wheels;and means for temporarily 'operativcly engaging and disengaging said "transmission mechanism and the driving shaft of the talking machine, said means embbdying a rocking member having separated arms for engagement by a member mount- "ed on said tone arm in correspondence with the initiatory and final positions thereof.

13. A repeater as characterized comprising a transmission mechanism permanently disposed on the. frame of a talking machine; means for operatively connecting said transmission mechanism and the tone arm of said talking machine for returning the tone arm to its initiatory position, said means embodying a transmission train consisting of a driving wheel mounted on said driving shaft, a driving xvheel of said transmission mechanism, and a roving pinion adapted to be moved into engagement with said driving wheels; and means for temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of the talking machine, said means embodyinga rocking member having separable arms for engagement by a member operated with said tone arm and at positions corresponding with the initiator v and final positions of said tone arm.

it. repeater as characterized comprising a transmission nierhanism permanently disposed on the frame of a talking machine; means for operatively connecting said transmission mechanism and the tone arm of said talking machine for returning the tone arm to its initiat'ory position, said means embodying a transmissiontrain con sisting ol a driving wheel mounted on said driving shaft, a driving wheel of said trans mission mechanism. and a roving pinion adapted to be moved into engagement with said driving wheels; means for temporarily operatively engaging and disengagingsaid transmission mechanism and the driving shaft of the talking machine, said, means embodying a rocking member having separable llrrRlS for en mgement by a member operated with said. tone arm and at posingshaft, a driving wheel of said transmis.

tions corresponding with the initiatory and final positions of said tone arm; and means for locking said arms in their adjusted position.

15. A repeater as cha 'acterized comprising a transmission mechanism permanently disposed on the frame of atalking machine; means for operatively connecting said transmission mechanism and the tone arm of said talking machine for returning the tone arm to its initiator-y position, said means embodying atransmission train consisting of a driving wheel mounted on said driving shaft, :1 driving wheel of said t ansmission mechanism, and a roving pinion adapted to be moved into engagement jVltll said driving wheels; means for temporarily operatively engaging and disengaging said transmission mechanisnr and the driving shaft of the talking. machine, said means embodying a rocking member having separable arms for engagement by a member operated with said tone arm and at positions corresponding with the initiatory and final positions of said tone arm; means for locking said arms in their adjusted posi tion; and means for closing said arms for engaging said member when released from the locking means.

16. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for operatively connecting said transmission mechanism and the tone arm of said talking machine for returning the tone arm to its initiatory position, said means embodying a transmission train consisting of a driving wheel mounted on said driving shaft, a driving wheel of said transmission mechanism and a roving pinion adapted to be moved into engagement with said driving wheels; means for temporarily operativelv engaging and disengaging said transmission mechanism and the driving shaft of the talking machine, said means embodying a rocking member having separable arms for engagement by a member operated with said tone arm and at positions corres mmiling with the initiatory and final positions of said tone arm; means for locking said arms in their adjusted position; means for closing said arms for engaging said 1\1Ql11l)01'.'\\'l1(3n released from the locking means; and manually operative means for releasing said arms.

N. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of a talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission mecha- 1 tone arm to its initiatory position; and

means operable by said transmission mechanism for lifting a sound-box mounted on said tone arm from the record groove prior to the movement of said tone arm toward the initiatory position thereof.

and disengaging said transmission mechanism and the driving shaft of said talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission mechanism and said tone arm for returning the tone arm to its initiatory position; and means operable by said transmission mechanism for lifting a sound-box mounted on said tone arm from the record groove prior to the movement of said tone arm toward the initiator-y position thereof, said means embodying an elevating mechanism, comprising a lifting lever pivotally mounted on the tone arm near the pivot center thereof, and means operatively connecting said lever and said soundbox.

.19. A repeater as characterized comprising a transmission mechanism permanently disposed on the frame of a talking machine; means for temporarily operatively engaging and disengaging said transmission mechanism and the driving shaft of said talking machine, said means embodying a member moved in correspondence with the tone arm of said talking machine; means for operatively connecting said transmission mechanism and said tone arm for returning the tone arm to its initiator-y position; and means operable by said transmission mechanism for lifting a sound-box mounted on said tone arm from the record groove prior to the movement of said tone arm toward the initiatory position thereof, said means embodying an elevating mechanism, and means for causing the operation of said elevating mechanism in advance of the movements of said tone arm by said transmission mechanism.

JOHN PARA.