US2081885A

US2081885A - Mechanism for selectively reproducing and automatically repeating sound record material

Info

Publication number: US2081885A
Application number: US35383A
Authority: US
Inventors: Arthur L Runyan
Original assignee: TRANSLAPHON CORP
Current assignee: TRANSLAPHON Corp
Priority date: 1935-08-08
Filing date: 1935-08-08
Publication date: 1937-05-25
Anticipated expiration: 1954-05-25

Description

A. L. RUNYAN SELECTIVELY BEPRODUCING AND AUTOMAT 2,081,885 ICALLY May 25, 1937. MECHANISM FOR REPEATING SOUND RECORD MATERIAL Filed Aug. 8, 1955 6 Sheets-Sheet 1 INVENTOR flribqr 1..Hungqn,

ATTORNEY May 25, 1937.

A. 1.. RUNYAN 2,081,885

TOMATICALLY MECHANISM FOR SELECTIVELY REPRODUCING AND AU REPEATING SOUND RECORD MATERIAL Filed Aug. 8, 1935 6 SheetsSheet 2 A. L. RUNYAN MECHANISM FOR SELECTIVE-LY REPRODUCING AND AUTOMATICALLY May 25, 1937.

'REPEATING SOUND RECORD MATERIAL Filed Aug. 8, 1935 6 Shegts-Sheet 3 o a a v r T May 25, 1937. A. L. RUNYAN 2,081,885

MECHANISM FOR SELECTIVELY REPRODUCING AND AUTOMATICALLY REPEATING SOUND'RECORD MATERIAL Filed Aug. 8, 1935 6 Sheets-Sheet 4 INVENTOR L jiunyaln,

May 25, 1937. A. L. RUNYAN 2,081,885

NECHANISI FOR SELECTIVELY REPRODUCING AND AUTOMATICALLY REPEATING SOUND RECORD MATERIAL Filed Aug. 8, 1935 6 She ets-Sheet 5 Um. gren country of compara le 131), the

txiravasawee unnec csvariaus modw'ji ca Zions configumiions l o Foo 30o M m on 00 30a '00 Patented May 25, 1937 U E STATES TENT orrica A; f an uals-y mnmi L. Bunyan, new York, N. 1., aaaignor, by meme assignments, to 'lranslaphon Corporajion, Newark, N. 1., a corporation or New Jermuses August 8,1935. sunrise; 35,388

acc aim. (emu-") v The invention relates to mechanismftor selectively reproducing and automatically, repeating sound record material.

The object of the present invention is to 'provide mechanism adapted for association with a numerical indexior the selection 01 portions of a sound record and of reproducing and auto-.

- curately limited in its travel from such point in "only the desired or selected portion of a sound record may. be reproduced and automatically rep the spiral or feed groove of the record so'that peated according to the wishes of the operator.

A further object or the invention is to provide micrometer graduated manually operable adjusting or setting means corresponding with the number of the grooves of a sound record so that portions of a sound record in accordance with the indications on a numerical chart corresponding to the sound record may be easily selected and the mechanism adjusted so that the reproducer stylus will start on the record at the desired point indicated by the chart and will be automatically lifted from the record and returned to the selected initial starting point after having traversed the desired area oi the record to automatically repeat all or the selected portion of the sound record as long as desired.

A further object of the invention is to provide repeat mechanism having means for returning the tone arm to its initial starting position which will be entirely inactive and have no effect on the tone 'arm while the same is in contact with the sound record so that no extra burden will be placed on the tone arm or the reproducer stylus and there will be no liability of causing increased wear or other injury to the sound record.

Another object of the invention is to provide repeat mechanism adapted to lift the tone arm and the stylus from the record before the means ior swinging the tone arm to its initial or selected starting position is permitted to function so that the means for swinging the tone arm back to its initial position will not cause the reproducer stylus to exert an increased pressure on the walls of the feed groove of the record.

It is also an object 01' the invention to equip the repeat mechanism with adapted when the tone arm is swung backwardly and returned to its initial starting position to positively hold the tone arm against swinging movement in either direction until the stylus is low-' ered to the soundrecord thereby insuring substantial accuracy in returning the tone arm "to its initial position in each operation of the repeat mechanism'.

A further object oi! the invention is to provide in addition'to' the manually operable micrometer latch mechanism adjusting or setting mechanism simple and eifective' means for permitting a flnal adjustment of the tone arm to compensate for variations in the starting points of sound records so that adjustments made from a chart may correspond with the material on sound records irrespective oi variations in the starting points of the material on such records.

A further object 01' the invention is to provide the reproduction and cause the tone arm and the reproducer stylus to be mechanically returned by the mechanism of the reproducer to its initial,

starting position and the needle to be lowered at such point upon the sound record for repeating the previously reproduced area of the sound record, thus enabling the reproducer needle to be set for starting sound reproduction at the desiredpoint on the sound record and the sound reproduction to be manually stopped at the desired point with the operation of the repeat mechanism otherwise automatic.

With these and other objects in view, the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointedv out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction, within the scope of the claims, may 'be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings:--- Fig. 1 is a plan view of a portion of a sound reproducing machine provided with mechanism constructed in accordance with the present invention for selectively reproducing .and automatically repeating sound record material.

Fig. 'a2 is a side elevation partly in section of a portion of the repeat mechanism illustrating one form of the invention. the tone arm being in its lowered position.

Fig. 3 is a central longitudinal sectional view of the same, the tone arm being broken away and illustrating the arrangement of the parts when the tone arm is in its elevated position.

Fig. 4 is a side elevation illustrating another form of the mechanism for selectively reproducing and automatically repeating sound record material, the tone arm being in its lowered position with the reproducer stylus resting. upon a sound record. Y

Fig. 5 is a central longitudinal sectional view of the same partly broken away and illustrating the arrangement of the parts when the tone arm is in its raised position. a

Fig. 6 is a detail horizontal sectional view taken I substantially on the line 6-6 of Fig. 5.

Fig. '7 is a detail view of the latch mechanism illustrating the arrangement of the same when the tone arm is in the lowered position illustrated in Fig. 4.

Fig. 8 is a similar view illustrating the arrangement of the latch when the tone arm is elevated as illustrated in Fig. 5.

Fig. 9 is a detail view of the latch when the parts are arranged as illustrated in Fig. 6.

Fig. 10 is a plan view of a numerically indexed sheet designed to correspond to a sound record.

Fig. 11 is a detail view of the upper right hand corner portion of a numerically indexed sheet.

Fig. 12 is an edge view of a plurality of numerical'ly indexed sheets arranged in a binder.

Fig. 13 is a diagrammatic view of the motor circuit.

Fig. 14 is a sectional view on the line "-H of Fig. 5.

Fig. 15 isa horizontal sectional view on the line l5--l5 of F18. 14.

Fig. 16 is a horizontal sectional view on the line Iii-i6 of Fig. 3. v

Fig. 17 is a detail view partly in section illustrating the manner of mounting the pivoted mercury switch shown in Figs. 4, 5, and 6. In the accompanying drawings in which ,is illustrated the preferred embodiments of the invention I designates a cabinet or casing of a sound reproducing machine which may be of any desired construction as the present invention is applicable to various types of sound reproducing machines such as an ordinary phonograph or .a sound reproducing means having an amplifying unit and equipped with a crystal or magnetic pick-up. The sound reproducing machine includes a turntable 2 actuated by an electric motor 2* and adapted to receive a sound record 3 having the usual feed grooves 4 which are engaged in the ordinary manner by a stylus 5 of the tone arm 6, whereby the rotation of the sound record through its spiral feed groove carries the tone arm inwardly over the record in the usual manner for reproducing the sound of the record.

The term grooves of the sound record refers to the number of convolutions or the pitch to which the spirally grooved record is out. As the sound reproducing machine may be of any desired construction and as the present invention is applicable to all types of sound reproducing machines detailed illustration and description thereof are deemed unnecessary. It

will be understood that the term tone arm comprehends any form of horizontally swinging or swinging movement on an upright spindle ill. The spindle I0 is suitably secured at its lower end to a tiltable support Ii which is oscillated vertically by means hereinafter described for raising and lowering the tone arm and the reproducer stylus to lift the stylus from the sound record and to return the stylus to the record. -When the tone arm is in its lowered position the spindle I0 is substantially vertical and the supporting arm 8 is disposed at a slight inclination and extends upwardly and outwardly from the sleeve 9 as clearly illustrated in Figs. 2 and 4 of the drawings.

While two forms of the invention are illustrated in the accompanying drawings as hereinafter fully explained these forms differ from each other principally in the means for actuating the tiltable support for raising and lowering the tone arm. The parts of the two forms of the invention which are identical have the same reference character and a single specific description of such parts is deemed ample.

The tone arm 6 is provided in its top'adjacent its inner end with an opening [2 through which the upper end of the spindle l0 projects and the outer end of the supporting arm 8 is provided with an enlargement 13 in which is threaded for vertical adjustment a tone arm lifting screw ll which engages the tone arm and lifts the same from the record when the support II is tilted from the approximately horizontal position illustrated in Figs. 2 and 4 of the drawings to the inclined position shown in Figs. 3 and 5. When thetone arm is lowered to the sound record and is in the position illustrated in Figs. 2 and 4 of the drawings the top portion of the tone arm clears the lifting screw and floats free of the same to enable the reproducer stylus to engage the grooves of the sound record in the usual manner. The adjustment of the lifting screw H of the arm 8 is adapted to enable the tone arm to be adjusted to enable its reproducer stylus to operatively engage records of different thicknesses and the adjustment of the screw I will enable the proper clearance between the screw and the tone arm to be provided for this purpose.

The supporting arm 8 is provided at the pivot I with hollow spacing lugs l5 through which the pivot I passes and which spaces the sides of the tone arm 6 from the supporting arm 8 as clearly shown in Fig. 1 of the drawings. The

lower end ii of the spindle is threaded for the reception of a nut l1 and is secured to a bearing bracket l8 which is arranged upon the upper face of the tiltable support ll. Also the threaded lower end of the spindle l0 and the nut I! provide convenient means for securing a lower bearing bracket ill to the tiltable support.

The tiltable support may conveniently consist of a substantially oblong plate provided with upstanding reinforcing side flanges 2|) and arranged, in a substantially oblong opening 2| in aosnass a supporting frame 22 which may be of any desired construction. In practice the supportdrawings and when the platform is in a -hori-' zontal position the front 'end 23 rests upon and is supported.- by the adjacent portion-of the supporting frame 22. v The tiltable support which constitutes a platform is plvotaliy mounted on the supporting frame at opposite sides by suitable pivots 24 which are mounted in suitable ears 25 of the supporting frame and which pierce the side flanges 20 of the tiltable support but the tiltable support may be pivotally mounted in any other desired manner as will be readily understood.

The bearing bracket II which is fixed to the central portion of the tiltable platform supports a worm actuated toothed segment 26 which is looseon the, spindle for rotaryadjustment by a worm 21 to changethe position of a normally stationary adjustable contact carrying bracket 26. The worm actuated segment 26 constitutes a support which is mounted for horizontal rotary or oscillatory movement on a vertical axis. The

segment 26 which is provided withan arcuate series of teeth 29 to mesh with the worm 21 rests upon the upper face of the bearing bracket l8 and the bearing bracket I6 is provided at its rear end with transversely alined bearings 33 in which is mounted a worm shaft 3| having the worm 21 fixed to it. The worm shaft 3i extends laterally beyond one side of the tiltable support II and has mounted on it a micrometer graduated drum 32 for theadjustment of the worm actuated segment 26. When thedrum is rotated rotary movement will be imparted to the worm actuated segment 26 throughthe worm 21 and after adjustment the worm will form a lock to maintain-the worm actuated segment 26 and the contact carrying bracket 26 in their adiustment.

The micrometer graduated drum is provided at its outer end with a milled flange 33 to facilitate manual operation and it is provided with a spiral groove 34 which is engaged by projections 35 of an indicator 36. The spiral face portion 31 of the drum between the grooves is provided with numbered graduations 38 corresponding with the grooves of the sound record 3 so that each groove of the sound record corresponds with a graduation of the drum 32. The spiral disposition of the face portion 31 provides a continuous graduated portion of the drum face of sufficient length to enable amply spaced grad uations on the drum to correspond to the closely arranged grooves of the sound record 3. 'In practice a 12 inch sound record will have approximately 400 grooves. The number of grooves of a 12 inch sound record may vary but 400 is generally the maximum number of grooves of such a record and the particular construction of the micrometer graduated drum will enable an excess of 400 graduations of the drum to be spaced a sufficient distance apart to be readily viewed so that the drum may be manually operated with precision for'positioning the normally fixed adjustable contact carrying bracket at the desired point as one of the determining factors for enabling the desired amount of the sound record material to be automatically and continuously repeated as hereinafter fully ex plained.

The indicator 36 which is curved to conform to the cylindrical configuration of the drum fits flat against the graduated portion of the same and. preferably consists of a plate provided between its ends with a transverse sleeve 33 which is slidably mounted on a fixed transverse guide rod 43. The projections 35 which engage the spiral groove at opposite sides of the spiral graduated face portion 31 of the drum may consist of pins or any other suitable means and the indicator which is slidable laterally on the transverse guide rod 46 when the drum is rotated is provided with a window 4| and it has an indicating member or arrow 42 consisting of an integral projecting portion of the indicator and extending inwardly at one side of the window and tapered to a point which cooperates with the graduatlons of the'drum. The guide rod 43 which is of a length to extend .across the spiral graduated portion 31 of the drum is carried by a supporting bracket 43 which may be secured to the tiltable support in any desired manner. The micrometer graduated drum 32 is preferably located at the left hand side of the tiltable support looking toward the tone arm in Fig; 1 of the drawings but the arrangement may be changed if desired, and the lower peripheral portion 01 the I ly mounted on the same for free rotative movement incident to the swinging movement of the tone arm which is adjustably positioned by the means hereinafter described with relation to the upper bearing bracket 46. The bearing bracket 46 provides a support mounted on a vertical axis for horizontal rotary or swinging movement to permit actuation of the tone arm by the sound record. The upper bearing bracket 46 has fixed to it a movable contact carrying bracket 48 which swings toward and from the fixed contact carrying bracket as the tone arm is carried over the sound record in reproducing sounds therefrom and when the tone arm is raised from the sound record and is swung outwardly to return it to its initial starting position. The upper bearing bracket is provided at opposite sides with transversely alined bearings 49 in which is mounted a transversely disposed worm shaft'5ll. A worm which is fixed to the Worm shaft 50 meshes with a worm actuated segment 52 provided with an arcuate series of teeth 53 which mesh with the worm 5| as clearly illustrated in Fig. 1 of the drawings. The worm actuated segment 52 is provided with a central opening 54' actuated segment 52 and extends into the sleeve.

9 of the supporting arm 8. The sleeve 3 of the supporting arm 8 is arranged on the extended portion of the sleeve 55 and is supported upon the upper face of the worm actuated segment 52. The supporting arm 8 and the tone arm 6 are connected with the worm actuated segment 52 and the rotary movement or adjustment of the segment .52 by the rotary movement of the worm 5i adjusts the tone arm and arranges the same in the desired position with relation to the bearing bracket 46 so that when the bearing bracket is carried to its initial or starting position the tone arm will be positioned at the desired point on the sound record for starting the reproduction of the desired portion of the same. The worm BI is pinned or otherwise fixed to the worm shaft 58 which extends laterally from the right hand side of the laterally tiltable support in Fig. 1 of the drawings and it has flxedly mounted on it a manually operable micrometer graduated drum 58 constructed the same as the drum 82. The drum 58 is provided at the outer end with a milled flange 51 and it has a spiral groove 58 defining a spirally arranged surface 58 provided with numbered graduations 68 corresponding to the grooves of a sound record. A laterally slidable indicator 8| cooperates with the graduations 60 of the spirally disposed peripheral surface of the drum and is of the same construction as the indicator 36 heretofore described.

The indicator GI which may be constructed of any suitable material is provided with a sleeve 82 and it has projections 83 located at opposite sides of it and formed by pins or other suitable means. The projections 63 extend into the spiral groove 58 and cause the indicator to move laterally on a transverse guide rod Bl when the drum is manually rotated. The transverse guide rod 84 which extends across the face of the drum in spaced relation thereto is mounted at its inner end in a bracket 65 which is fixed to the upper bearing bracket 46. The slide ii is provided at the spirally graduated portion 59 with a window 66 and it has an indicating member or arrow 61 preferably formed by an integral tapered portion of the slide. The arrow li'l pro- :lects inwardly with respect to the window and is located at the graduations 58 of the drum. The spiral arrangement of the graduated portion of the face of the drum is of sufficient length to enable the graduations to be readily seen and to be from to the required number necessary to correspond to any size record or pitch to which the grooved record is out. As before explained the maximum number of convolutions or grooves of a 12 inch record is approximately 400 and the graduations of the drum 56 are numbered from 0 to 400 and are continued slightly in excess of the latter, as clearly illustrated in Fig. 1 of the drawings.

If a 12 inch record was cut to 650 pitch per 4 inches or less than 400 pitch per 4 inches then the graduated drum would not correspond but the chart would indicate the approximate number to dial to lower needle to the position on record and chart would further show the position to dial repeat drum for repetition.

This will be ample for the standard 12 inch records but it will be readily understood that the spiral graduated portions of the

drums

32 and 88 may be made of any desired length to provide ample space for the graduations to correspond to the pitch to which any desired size of record may be out.

When the micrometer graduated drum 32 is turned to a given number in register with the arrow 42 in the window of the indicator 38 above the face of the drum 32 it will place the reproducer needle in a selected position above the related record groove of the sound record 3 on the turntable.v By means of the worm 5! of the segment 52 the tone arm is actuated at a speed less than that of the drum; The other micrometer graduated drum 55-when turned to any given number from a zero position advances the contact carrying bracket 28 ahead of the contact carrying bracket 48 and spaces it from the said contact carrying bracket 48 and, when the reproducer needle is lowered into the record roove the turntable must make the number of revolutions indicated in they window 88 of the slide 8| of the micrometer graduated drum 88 before the contact carrying bracket 83 reaches the contact carrying bracket 28 and closes a motor circuit 88 for lifting the tone arm and the reproducer needle from the sound recor as hereinafter fully explained.

when the tone arm is lifted from the sound record by the tilting of the support II and is swung outwardly with respect to the record to the selected initial or starting position it is while elevated locked in such initial position by a. latch 68 pivoted at 10 to a fixed bracket II and engageable with a keeper recess 12 of a latch engaged member I3 rigid with and carried by the upper bearing bracket 48. The fixed bracket H is mounted on the supportingframe 22 and may be secured to the same in any desired manner. As illustrated in the accompanying drawings it is arranged at the front of the supporting frame and it extends upwardly and inwardly over the front portion of the tiltable support. The pivot Ill of the latch 89 is located adjacent one end of the latch and the bracket is provided at opposite sides of the vertical plane of the pivot ill with stops H and which limit the swinging movement of the latch. The latch engaged member 13 may be connected with the upper bearing member 48 by means of the contact carrying bracket 48 or by any other suitable means. It is provided at its front or outer portion with an arcuate flange 18 arranged to receive the latch 89 when the front portion of the tiltable support II is elevated and the latch rides on the flange l6 during-the return movement of the tone arm and drops into the keeper recess I2 as soon as the tone arm reaches its selected initial position.

The flange 15 is provided at the outer side of the keeper recess 12 with a projecting portion 11 which forms a stop shoulder for accurately limiting the movement of the latch engaged member and the tone arm in one direction for insuring the return of the tone arm to its precise selected initial position. In Fig. '7 of the drawings the latch 69 is shown supported by the flange 18, the tone arm being elevated as illustrated in Fig. 5 of the drawings. In Fig. 8 the latch 68 is shown in engagement with the keeper notch 12 for squaring the tone arm with relation to the sound record so that the reproducer needle 5 will be lowered to the precise point selected for starting the playing or reproduction of the sound record.

In Fig. 9 of the drawings the latch 69 is shown clear of the keeper recess 12, the tone arm having been lowered to engage the reproducer needle with the sound record 3 as illustrated in Fig. 4 of the drawings. 1

The tiltable support II is adapted to be locked in its tilted position with the latch 68 in engagement with the keeper recess I2 by means of a manually operable locking lever 18 pivoted at 18 in a bracket 88 fixed to the rear' portion of the supporting frame 22. The pivot 19 is located adjacent to one end of the manually operable locking lever 18 to form a toe or engaging portion 8! which is adapted to be swung downwardly from the full line position shown in Fig. 5 to the dotted line position illustrated in the said figure for locking the outer or rear portion of the tiltable support in its lowered position.

This locking of the support II in its tilted position will maintain the same rigidly in such position while the tone arm is held rigidly against swinging movement by the engagement of the latch 68 with the keeper recess 12. This will facilitate accurate adjustment of the tone arm and the adjustable contact carrying bracket although such adjustment may of course be made without looking the tiltable support. Also the locking lever is adapted to be manually operated for lifting the inner or front portion of the tiltable support II and the tone arm carried thereby and for causing a manual operation of the mechanical means hereinafter described. for returning the tone arm to its initial position with! out closing the motor circuit 68 and independently of the same so that under certain conditions a motor and motor circuit and contact carrying brackets may be omitted to provide an inexpensive manually operable repeat mechanism for sound reproducing machines.

,In addition to the adjustment or positioning of the tone arm afforded by the micrometer graduated drum and the connections between the same and the worm actuated segment 52 final adjustment means is provided to permit the tone arm to be adjusted to compensate for variations which may occur in the starting point of a sound record so that the tone arm maybe adjusted with relation to any particular sound record and the reproducer needle of the tone arm will when lowered to the sound record correspond exactly with the numbered graduations of the drum 56.

The upper worm actuated segment 52- is provided at the front or inner portion with

lugs

82 and 83 spaced'apart to receive a depending extension 84 of the supporting arm 8. The extension 84 is preferably in the form of a lobe, as clearly illustrated in Fig. 5 of the drawings, and the arm 83 is provided at the outer side with a laterally extending tubular barrel 85 closed at the outer end and containing spring means for urging the supporting arm inwardly with respect to the lug 83. The spring means preferably consists of a plunger 86 and a coil spring 81. The plunger extends through the lug 83 and the other lug is provided with an adjusting screw 88 having a threaded engagement with the lug 82. The lobe 84 of the supporting arm 8 is preferably provided at each of its side faces with an indentation 88 to receive either the inner end of the adjusting screw 88 or the engaging end of the plunger 86. The adjusting screw 88 is adapted to move the supporting arm away from the lug 82 and towards the lug '83, the spring actuated plunger 86 yielding to the action of the screw. The screw is also adapted to be adjusted to permit the spring actuated plunger to move the supporting arm away fromthe lug 83 and towards the lug 82. By the means of the screw and the spring actuated plunger the supporting arm 48 which carries the tone arm may be adjusted from the central position in the space between the

lugs

82 and 83 to either of the said lugs and a rela-- tively small adjustment at the inner or pivoted end of the supporting arm 8 will afford a relatively large adjustment of the reproducer needle at the outer end of the tone arm sufficient to amply compensate for variations in the starting point of sound records.

The upper bearing bracket 46- with which the tone arm is adjustably connected is provided at opposite sides with laterally alined shoulders 88 arranged to be engaged by side portions 8| of a forked lever 82 fulcrumed on the depending bracket l8 at a point intermediate of its ends by a transverse pivot 88 and having a lower arm 84 arranged to be carried into engagement with a stop 86. The lever 82 is reinforced by side flanges 82 and the pivot 88 passes through the side flanges 82' and the sides of the bracket l8 which-is approximately U-shaped in horizontal section. The stop 86 preferably consists of a bracket mounted on the supporting frame 22 at the bottom'thereof and arranged in the path of movement of the lower arm 84 and adapted after being engaged by the arm 84 to hold the same against further movement whereby the upper tilting of the inner or front portion of the the upper bearing bracket and a swinging movement of the tone arm and returns the same to its selected starting position. The other side of'the forked portion of the lever 82 engages with theother shoulder at the completion of the swinging movement of the tone arm and the upper bearing bracket is squared or returned to its initial position and is locked in such position by the latch 68' until released from such locked position by the downward movement of the inner. portion of the tiltable support.

Instead of employing a bracket 85 anyother suitable means may be provided for holding the lower arm 84 of the forked lever for causing an engagement of the same with the side shoulders of the. upper bearing bracket. Also while the side shoulders 88 of the upper bearing bracket 46 are illustrated in the drawings as formed by integral laterally extending portions of the said bearing bracket 48 any other suitable means may be employed for providing the side shoulders to cooperate with the forked lever for returning the bearing bracket and squaring or centering the same at the completion of such return movement.

The front elevated portion of the tiltable support when free to. move is moved downwardly by a coil spring 86 which'lowers the tone-arm and the reproducer needle to the sound record.

In Figs. 2 and 3 of the drawings an electric motor 81 is employed for furnishing the energy for tilting the support It to elevate the inner or front portion thereof and-raise the tone arm and,

. bracket l8 and carrying at its lower end a roller 88 which cooperates with a rotary cam 88 actuated by the electric motor 8'l. The roller 88 which is preferably mounted in a forked or bifurcated portion of the arm 81* is held against the periphery of the cam 88 by the spring 86 and when the cam is rotated-and carried from the position illustrated in Fig. 2 of the drawings to that shown in Fig. 3 the support ll istilted from the horizontal position illustrated in Fig. 2 to the inclined position shown in Fig. 3. When the cam 88 is rotated from the position shown in Fig. 3 to that illustrated in Fig. 2 the spring brings the tiltable support from the tilted by a roller I02 of a mercury switch I03pivotposition shown in-Fig. '3 to the horizontal position illustrated in Fig. 2, the cam controlling the action of thespring inmoving the tiltable support from its inclined. position to its normal horizontal position. Thecam 99 is mounted on' a cam shaft. I which is connected with the motor shaft by suitable speed reducin gearing (not shown). Y

The cam shaft also carriesa switch control-.

ling cam IOI which is engaged at its periphery ally mounted at- I04 on the main frame 22 at thebottom thereof and engaged by a spring I05 a cut-out I06 of substantially segmental form' which maintains the roller I02 in contact with the periphery of the switch controlling cam IOI. The switch controlling cam IOI is provided with presenting a concave peripheral edge to the roller I02 and permitting thespring I05 to tilt the mercury switch and cause the mercury to flow to the end remote from'the contacts I01 for opening the motor .circuit 68. The mercury switch is arranged in-parallel with contacts I00 .and I09 mounted on the

contact carrying brackets

28 and 48 and operates through the cam IOI to maintain the motor circuit closed until after the complete separation of the contacts I08 and I09 when the tone arm is swung outwardly with through the operation of the spring 96 and the cam 99, the motor circuit being opened and the motor stopped when the cut-out I06 of the cam is carried to the roller I02 of the mercury switch and the latter tilted to carry the mercury thereof from the contacts I01 to the opposite end of the mercury switch. The cut-out I06 permits the spring I05 to swing the contact carrying end of the mercury switch upwardly a sufficient distance to arrange the mercury switch in an inclined position opposite to that illustrated in Figs. 2 and 3 of the drawings. The contacts I00 and I09 are insulated from the

contact carrying brackets

28 and 48 and'the arrangement of the said contacts in parallel with the mercury switch is indicated diagrammatically in the motor circuit in Fig. 18 of the drawings.

In Figs. .4'and 5 of the drawings is illustrated another fo'rm of the invention in which a solenoid, H0 is employed instead of an electric mo- 'tor for supplying rotary motion. The solenoidwhich is preferably arranged in a vertical position isvprovided with a vertically movable core III and constitutes a-motor for furnishlng.re-'

- minates at a point above the plunger extension H2 of the core III. The tilting movement of the support II under the influence of the spring H3 is controlled by a dashpot Ill of the ordinary construction. The dashpot II4 which is arranged vertically is pivotally mounted at its lower end at H5 in the supporting frame at the bottom thereof and its plunger H6 is pivotally connected at the upper end at ill to the outer portion of the tiltable support II at the lower face of the same. Also a coiled spring H0 is head I I9 formed on the upper end of the plunger I16 forthe pivotal connection between the plunger and-the tiltable support. When the spring 3 is fiexediby the closing of the motor or solenoid circuitthe, inner portion .of the platform is elevated'with a controlled motion and the forked lever 92 operatesin the manner heretofore described to return the tone arm and the reproducer needle to the selected initial position. The

contact carrying arms

28 and 40 of the form of the invention illustrated in Figs. 4-6, inclusive, carry contacts I 20 and I2I and the bracket 40 also carries a mercury switch I22 arranged in parallel .with the contacts I20 and I2I of the solenoid circuit and pivotally mounted at I23 in a yoke I2 secured to an arm I25 extending laterally from the contact carrying bracket 40.

The solenoid circuit is the same as the motor ;circuit with the exception of the solenoid being substituted for the motor. Detailed illustration of the solenoid circuit is deemed unnecessary. The pivotal connection between the mercury switch and the yoke is formed by spaced pivots I23 passing through gears I26 of a lever I21.

. The lever I21 isfulcrumed intermediate its ends and its inner arm carries a spring clip I28 for holding the, mercury switch I22 and the outer arm is engaged by a switch controlling member I29 having anattaching flange I20 secured to the supporting frame. -The switch controlling member I29 consists of an approximately horizontal plate normally located above the front arm I30 of the lever I21 and when the Inner portion of the tiltable support is elevated to the position illustrated in Fig. 5 of the drawings the lever I21 is swung on its pivotal connection I23 and the mercury switch is tilted to close the solenoid circuit and will maintain the solenoid circuit closed as a solenoid circuit after the separation of thecontacts I20 and'I2I and prevent arcing of the same. The mercury switch I22 maintains the solenoid circuit closed until the contact carrying arm 48 and the tone arm are returned to their initial or starting position. This movement also carries the arm I30 of the lever I21 beyond the switch controlling member I29 and permits the mercury switch to tilt automatically from the inclined position shown in Fig. 5 of the drawings to the oppositely inclined position illustrated in Fig. 4 for causing the mercury of the switch to leave the contacts I3I of the mercury switch and open the solenoid circuit and deenergize the solenoid.

The springs I I3 and IIS insure the return of the tiltable platform to its normal horizontal position illustrated in Fig. 4 of the drawings.

The operation of the repeat mechanism of the form of the invention illustrated in Figs. 4 to 6, inclusive, of the drawings is the same as that of the form of the invention illustrated in Figs. 2 and 3 of the drawings and the movement of the tiltable support II is controlled to permit a smooth and gentle operation of the mechanism in raising the tone arm from the sound record and in swinging it horizontally to its selected initial position and in lowering .the tone arm and the reproducer needle to the sound record. The micrometer graduated drum at the right hand side of Fig. 1 of the drawin s is set with the arrow or the indicator at for starting the playing 01' the sound record 3 at the beginning thereof and the arrow or the indicator of the left hand micrometer graduated drum in Fig. 1 oi the drawings is set at 400. This setting will cause the entire sound record to be played and continuously reproduced. The micrometer graduated drums may be operated to set the indicator at any point between 0 and 400 on each drum so that any portion of the sound record 3 may be played and automatically repeated continuously. In practice a numbered index sheet I3! is designed to be provided for each sound record and these may be conveniently bound in a loose leai binder as indicated at I33.

The upper right hand corner oi one oi the sheets is shown in Fig. 11 on an enlarged scale. These numbered index sheets which correspond with the graduations of the micrometer drums enable the tone arm to be adjusted for starting the playing 01' the record at the desired point and the adjustment oi the normally stationary contact controlled by the micrometer graduated drum 3! will enable the desired portion of the sound record to be played. Also if desired the normally stationary adjustable contact which .is controlled by the micrometer drum 32 may be set at the limit or its adjustment and only the tone arm adjusted to select the desired starting point on the record. The record may then be played and the tone arm may be raised and we played portion repeated by operating the locking lever II which when swung from the position shown in full lines in either Fig. 2 or Fig. 4 oi the drawings to the dotted line position illustrated in the said figures will elevate the front portion of the tiltable platform and lift the tone arm from its association with the sound track of sound record and return the tone arm to its selected starting position. The locking lever may then be operated to release tiltable support and permit the tone arm to be lowered to the sound record for repeating the previously played portion 01' the record. In this manner the repeat mechanism may be manually controlled without the electrical means for the automatic operation 01' the repeat mechanism.

In order to enable the micrometer graduated drum to be set in the proper position with relation to the worms the outer end portion of each of the worm shafts is split at I and is provided with a bore I35 threaded at its inner portion I36 and tapered at I3'I at its outer split portion. The threaded portion of the bore is located beyond the split portion and is adapted to be engaged by the threaded portion I33 ofv a screw I39 which is provided beyond the threaded portion I38 with a tapered portion I40 located at the head end of the screw and adapted to engage the walls of the tapered portion I31 of the bore of the worm shaft for expanding the same within a hub I4I' of the micrometer graduated drum. In practice the micrometer graduated drum which may be constructed of any suitable material is provided at its ends with heads having suitable bearings for the worm shaft, the bearings being preferably in the form of hubs or enlargements but a any other suitable construction may of course be 'be provided for this purpose as well as raised characters for the blind to enable the blind to mechanism. The numerical designations prei'- erably consist of the letter R and a number. These may be arranged wherever required or desired to show where the micrometer graduated drum iii of the repeat mechanism is to be set for repeating the selected subject matter of the sound record related to the subject matter of the chart. The numbers on the chart for positioning the tone arm will designate the starting point for any selected area or a sound record so that the chart will have starting and finishing numbers of any section of the sound record desired for reproduction and repetition, the numbers on the chart being related to both drums as well as the sou volutions or grooves of the sound record for all or any portion 01 the record selected for reproduction and repetition.

What is claimed is:

1. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a sound reproducer adapted for coaction with a sound record, means for actuating the sound record, a support carrying the reproducer and movable downwardly to operatively engage *record.

2. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a sound reproducer adapted for coaction with a sound record, means for actuating the record, a support mounted to tilt on a horizontal axis to operatively engage the reproducer with selected portions of the record and to withdraw the reproducer therefrom, means for mounting the sound reproducer on said support for inward and outward movement with respect to the sound record, a pivotally mounted lever carried by the support and arranged to impart movement to the reproducer to return the reproducer to its starting position when the support is tilted to lift the reproducer from the record, and a stop engageable with said lever for causing relative movement between the lever and the pivotal support to actuate the reproducer in returning the same to the starting point.

3. In mechanism for reproducing and repeating the whole or any selected portion 01 a sound record, a support tiltable on a horizontal axis, a sound reproducer adapted for coaction with a sound record and carried by the support in the tilting movements thereof to operatively engage the reproducer with the sound record and to lift the reproducer therefrom, means actuated by the tilting movement of the supportfor returning the reproducer to its starting position, and a manuallyoperable lever arranged to tilt the support for lifting the reproducer from the sound record, said lever being movable to a position to form a stop for holding the reproducer in an elevated position.

"4. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, including a support movable upwardly and downwardly, a sound reproducer including a horizontally swinging tone arm carried by and swingable with respect to the support and adapted to be operatively engaged with a sound record and to be withdrawn therefrom by the downward and upward movement of the support, and means operative only when the tone arm is elevated foring the whole or any selected portion of a sound record, a tiltable support, a bracket element mounted for horizontal pivotal movement on the support, a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging tone arm mounted on and movable with'the bracket element and adapted to be operatively engaged with a sound record and to be withdrawn therefrom by the tilting movement of the support, and means engageable with the bracket element for actuating the same to swing the tone arm to return the same to its starting position when the support is. tilted to lift the tone arm from the record.

6. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a tiltable support, a bracket element mounted for horizontal pivotal movement on the support and carried by the latter in the tilting movement thereof, a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging tone arm mounted on and movable with the bracket element and,

adapted to be operatively engaged with a sound record and to be withdrawn therefrom by the tilting movement of the support, means for adjustably connecting the tone arm with the bracket element for arranging the starting position of the tone arm at any point on-a sound record,

and means carried by the support and-movablewith relation to the same for swinging the bracket element to a predetermined position and the tone arm to its selected starting position when the tone arm is lifted from the record by the tilting movement :of the support.

'7. In mechanism for reproducing and repeating the whole or any selected portion of a sound rec-- 0rd, a tiltable support, a bracket element mounted for horizontal pivotal movement on the support,

a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging tone arm mounted on and movable with the bracket element and adapted to be operatively engaged with a sound record and to be withdrawn therefrom by the tilting movement of the sup the whole or any selected portion of a sound record, a tiltable. support, a bracket element mounted for horizontal pivotal movement on the support and carried by the same in the-tilting -movement thereof, a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging tone arm mounted on and movable with the bracket element and-adapted to be operatively engaged with a soundrecord and to be withdrawn therefrom by the; tilting movement of the support, meansfor adjustably connecting the tone arm with'the bracket element for arranging the starting position .of the tone arm at any point on a sound record, means carried by the support and movable with rela-' tion to the same for swinging the bracket element to a predetermined position and the tone arm to its selected'starting position when the tone arm is lifted from'the record by the tilting movement of the-support, and means forholding the tone arm in its-starting position until the tone arm is lowered to the record, the latter means comprising a latch mounted on a fixed support, and'a latch engaging member connected with the bracket element andarranged to be engaged by the latch when the tone arm is elevated and has returned to, its starting position.

' 9. In mechanism for reproducing and repeating the whole or any selected portion of a soundv record, a tiltable support, a bracket element mounted for horizontal pivotal movement on the support and carried by the same in the tilting movement thereof, a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging tone arm mounted on and movable with the bracket element and adapted to be operatively engaged with a sound record and to be withdrawn therefrom by the tilting movement of the support, means for swinging the bracket element to a predetermined position when the support is elevated, means for adjustably connecting the tone arm with the bracket element for adjusting the tone arm with relation to the said means for arranging the starting position of the tone arm at any point on a sound record, a latch engaging member connected with the bracket element and movable upwardly and downwardly with the tilting platform and provided with a substantially arcuate portion having a keeper, and a latch mounted on a fixed support and arranged to ride on the said arcuate portion when the tone arm'is, elevated and adapted to engage thekeeper when the tone arm is returned to its starting position whereby the tone arm will be locked in such position until the same is lowered to the sound record.

10. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a tiltable support, a' sound reproducer including a horizontally swinging tone arm car-. ried by the support and adapted to be operative-. ly engaged with a sound record .and to be lifted .therefrom by the tiltablesupport, means for swinging the tone arm outwardly when it is lifted from the sound record, means forv adjustingarm and movable with the same, a normally stationary contact arranged in the path of the me?- movable with the same for closing the circuit to ate the electric motor device, and means for holding the circuit closed until the tone arm is returned to its starting position.

ll. In mechanism is. reproducing and repeating the whole or any selected portion of a sound record, a tiltable support, a sound reproducer mcluding a horizontally swinging tone arm carried by the support and adapted to be operatively engaged with a sound record and to be lifted thererom by the tiltable support, means for swinging the tone arm outwardly when it is lifted from the sound record, means for adjusting the tone arm relative to the tone arm swinging means for positioning the tone arm to start the playing of a record at any portion of the same, means for tilting the support to lift the tone arm from the record comprising an electric motor device, an electric circuit including the said device, a movable contact associated with the tone arm and movable with the same, a normally stationary contact arranged in the path of the movable contact for closing the said circuit to operate the electric motor device, a mercuryswitch arranged in parallel with the said contacts for maintaining the circuit closed until the tone arm is re? turned to its starting position, and means for operating the mercury switch.

12. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a tiltable support, a sound reproducer including a horizontally swinging tone arm carried by the support and adapted to be operatively engaged witha sound record and to be lifted therefrom by the tiltable support, means for swinging the tone arm outwardly when it is lifted from the sound record, means for adjustingthe tone arm relative to the tone arm swinging means for posltioningthe tonearm to start 7 the playing a: a a'tnny portion of the same, means for tilting the support to lift the tone arm from the record comprising an electric motordevice, a cam operatively connected with a motor circuit including a normally stationary contact and a movable contact associated with the tone arm and movable with the same for closing the circuit to lift the tone arm from the record when the selected portion of the same has been played.

13. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a tiltable support, a sound reproducer including a horizontally-swinging tone arm carried by the support and adapted to be operatively engaged with a sound record and to be lifted therefrom by the tiltable support, means for swinging the tone arm outwardly when it is lifted from the sound record, means for adjusting the tone arm relative to the tone arm swinging means for positioning the tone arm to start the playing of a record at any portion of the same, means for tilting the support to lift the tone arm from the record comprising an electric motor device, a cam operatively connected with the motor device and arranged to actuate the tiltable support to lift the tone arm from the record, means actuated by the tilting movement of the support for swinging the tone arm to its starting position when the support is elevated, a motor circuit including a normallystationary contact and a movable contact associated with the tone arm and lift the tone arm from the record when the selected portion of the same has been played, a mercury switch in parallel with the said contacts, and means for operating the mercury switch including a spring for moving the mercury switch in one direction and a cam actuated by the motor for moving the mercury switch in the opposite direction.

14. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, including a tilting support. a sound reproducer including a horizontally swinging tone arm carried by the support and adapted to be operatively engaged with a record and to be lifted therefrom by the tilting support, means for tilting the support to lift the tone arm from the record comprising a solenoid having a movable core, spring means connected with the tiltable support and arranged to be placed under tension by the core of the solenoid, means associated with and operated by the tone arm for energizing the solenoid, and means operated by the tilting of the support for swinging the tone arm to return the same to its starting position when the tone arm is lifted from the record.

15. In mechanism forreproducing and repeating the whole or any selected portion of a sound record, including a tilting support, a sound reproducer including a horizontally swinging tone arm carried by the support and adapted to be operatively engaged with a record and to be lifted therefrom by the tilting support, means for tilting the support to lift the tone arm from the record comprising a solenoid having a movable core, a spring connected with the tiltable support and arranged to be placed under tension by the upward movement of the solenoid core, means for controlling the movement of the tiltable support when the same is actuated by said spring, and means operated by the tone arm for energizing the solenoid when the selected portion of the record-has been played.

16. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, including a tiltable support, a sound reproducer carried by the tiltable support and including a horizontally swinging tone arm adapted to be operatively engaged with the sound record and to be lifted therefrom by the tilting support, means for tilting the support to lift the tone arm from the sound record including a solenoid, and a spring device arranged to be. placed under tension by the solenoid for actuating the tiltable support, means for energizing the solenoid comprising a circuit having a normally stationary contact and provided with a movable contact associated with the tone arm and movable by the same to close the circuit and energize a solenoid,

means for swinging the tone arm to return the until the tone arm is returned to starting position same to close the circuit and energize a solenoid.

means for swinging the tone arm to return the same to its initial position when the tone arm is lifted from the record, a switch carrying lever also associated with the tone arm and movable 1 with the same, a mercury switch supported by the lever and arranged in parallel with the said contacts. a switch controlling element arranged to be engaged by the said lever when the tone arm is elevated and adapted to hold the lever against movement for maintaining. the circuit closed until the tone arm has been returned to its starting position, said lever being carried beyond the switch controlling member at the end of the return movement of the tone arm to permit the mercury switch to open the circuit and deepergize the solenoid.

18. In mechanism ior-reproducing and repeating the whol'eor any selected portion of a sound record, a sound reproducer including a horizontally swinging tone arm adapted for coaction with the sound record, means for controlling the horizontal swinging movement of the tone arm including iorm gearing connected with the tone arm, a drum for rotating th gearing provided with a spirally graduated peripheral portion having graduations corresponding to the pitch grooves of a sound record, and a transversely. slidable indicator associated with the spirally graduated portion of the drum and actuated by the same and cooperating with the graduations thereof.

19. In mechanism forreprod'ucing and repeating the whole or any selected portion of a sound record, a sound reproducer including a horizontally swinging tone arm adapted for coaction with the sound record, means for controlling the 4 horizontal swinging movement of the tone armincluding worm gearing connected with the tone arm, a drum connected with the gearing and provided in its periphery with a spiral groove defining a spiral peripheral surface provided with graduations corresponding in number with the pitch grooves of a sound record, and a transversely slidable indicator provided with means for engaging the spiral groove and provided with a window having an' indicating portion coactlng with the graduations.

20. In mechanism for reproducing and repeating the whole or any selected portion of aso'und record, a sound reproducer including a horizontally swinging tone arm adapted for coaction with the sound record, means for controlling the swinging movement of the tone arm including a manually operable drum provided at its periphery with a spiral 'surfacehaving graduations corresponding to the pitch grooves, substantially corresponding in number; to the number of the pitch grooves of a sound record, and an indicator cooperating with the spiral surface of the drum and movable transversely of the drum to maintain its coacting position with the graduations of the same when the drum is rotated.

21. In mechanism'for reproducing and repeating the whole or any selected portion oi a sound record, including a support mounted to tilt on a horizontal axis, a sound reproducer includinga horizontally swinging tone fidapteq 9 be a,os1,ees

'operatively engaged with a record and to be lifted therefrom by the tilting support, means for tilting the support, lifting the tone arm and for swinging the tone arm to return the same to its starting position, said means including an electric motor device and a circuit having a contact movable with the tone arm and a normally stationary contact arranged to be electrically engaged by the movable contact for closing the circuit to actuate the tiitabie support, means for adjusting the tone armvand a-movable contact to position the tone arm with relation to the record, means for adjusting the normally stationary contact toward and from the movable contact to control the amount of the sound record to be played, each of said adjusting means being provided with a manually operable drum provided at its periphery with a spiral groove defining a spiral surface provided with graduations corresponding substantially in number to the number of pitch grooves of a sound record, and a transversely slidable indicator provided with means to cooperate with the graduations oi the said spiral surface and having means for engaging the groove whereby when the drum is rotated the indicator will be caused to slide transversely of the drum to maintain its indicating means in cooperative relation with the graduations of the said spiral surface.

22. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, including a support tiitabie on a horizontal axis and provided with a vertical spindle, a supporting arm loosely arranged on the spindle, a sound reproducer including a tone arm pivoted to' the supporting arm, a supporting element mounted on the spindle and means for adjustingthe supporting arm and the tone arm with relation to the supporting element comprising a gear having spaced lugs receiving a portion of the supporting arm between them, an adjusting screw mounted on one of the lugs and engaging the supporting arm at one side thereof, and yieldabie means mounted on the other ing and engaging the adjacent side of the supportporting means, means for adjustably connecting the tone arm to the supporting means to cause the tone arm and the supporting means to swing together, and latching means engageable with the rotative supporting means for limiting the outward swing of the same.

24. In mechanism for-reproducing and repeat 'ing the whole or any selected portion of a" sound record, a support mounted for upward and down-= ward movement, a supporting means mounted on the said support.for-rotative movement-ya horizontally swinging tone arm carriedtbyts'aidi supporting means, means for. adjustably connects.

ing the tone'arm to the supporting meanssttora'use the tone arm and the supporting meanst-to iswing' togethena second supporting" means mounted for rotative adjustment on the'saidsupport, and means for moving said supportupwardl'y to lift the tone arm from a'sound'record and for swinging the first mentioned supporting means outwardly to return the tone arm'to-its starting position including an electric motor device and a circuit for the same having contacts carried by the said rotative supporting means and adapted to be closed to limit the inward movement of the tone arm and define the amount of a record to be played. I

25. In mechanism of the class described, means for rotating a sound record, a sound reproducer having a tone arm with a reproducer stylus, tone arm mechanism for positioning the tone arm with relation to the sound record, an electric contact point attached to the tone arm mechanism to travel with the tone arm when the reproducer stylus is engaged with the record for sound reproduction. a graduated character micrometer drum attached to the tone arm mechanism for manual operation thereof. an indicator operative when the micrometer drum' is operated manually by turning to place the tone arm in a relative position above the sound record to the convolution or groove as shown by the indicator on the graduated character drum in register with a graduation or character, a second electric contact point, means for adjusting the second contact point including a second graduated character micrometer drum having the same graduations and characters and indicator as the first micrometer drum and when manually operated places the second electric contact point in advance of the first electric contact point the number of turns of the sound record necessary to complete all or any selected area of the record before the stylus can feed the contactpoint carried by the tone arm into electrical engagement with the advance micrometer controlled second contact point, and a motor actuated repeat mechanism having a motor circuit including the said electric contact points and adapted to be closed by the movement of the tone arm by the rotation of the sound record which carries the ilrst mentioned contact point into electrical engagement with the second contact point and closes the motor circuit. the graduated characters on both micrometer drums being sufllcient to comprehend the sound record grooves.

26. In mechan sm for reproducing and repeating the whole or any selected portion of a sound record, a sound reproducer adapted for coaction with a sound record. sound reproducer supporting means mounted for horizontal pivotal movement, means for actuating the record and repeat mechanism includin a scale provided w th graduations related to the convolutions oi the sound record groove. means for selecting on the scale a point related to a convolution of the sound record groove and for adjusting the reproducer with relati on to the supporting means. means for returning the supporting means to a definite position and the reproducer to its selected starting position. and means connected with the sa d means for determining the number of rotations oi the sound record permitted by the repeat mechanism.

27. A device of the class described, including a tone arm having a reproducer stylus tone arm supporting means mounted for horizontal pivotal movement, a spiral scale having a plurality of in the convolution of the sound record groove related to said selected scale point when the tone arm is lowered to the sound record.

28. In mechanism for reproducing and repeating'the whole or any selected portion of a sound record having a sound track, a. sound reproducer adapted for coaction with a sound record, sound reproducer supporting means mounted for horizontal pivotal movement, means for actuating the sound record, and repeat mechanism including separate indicating means movable to diiIerent positions related to different convolutions of the sound track of the sound record for determining the beginning and end of the material of the sound record to be played and repeated, means for adjusting the sound reproducer with relation to the reproducer supporting means for positionselected convolution of the sound track of the sound record designated by such indicating means and reference position selected, means connected with the other of such indicating means and operated by the same for determining the end of the number or record convolutions to be plaved and repeated of the materials related to the reference positions selected bythe movable indicating means, and means for returning the reproducer supporting means to a definite position and the reproducer toits selected starting position.

29. In mechanism for reproducing and repeating the whole or any selected portion of a'sound record. a sound reproduceradapted for coact on with a sound record, means for actuating the record. a support carrying the reproducer and having means for pivotally mounting the same on a vertical axis and movable downwardlv to operatively engage the reproducer with selected portions of the record and upwardly to withdraw the reproducer therefrom. means carried by the support and movable with respect to the same is moved upwardly to lift the reproducer from the record.

30. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a sound reproducer adapted for coaction with a sound record, means for actuatin the record, a support carrying the reproducer and having means for pivotally mounting the same on a vertical axis and movable downwardly to operatively engage the reproducer with selected portions of the record and upwardlv to withdraw the reproducer therefrom, means for permitting horizontal swinging movement of the reproducer, a member carried by the support and movable with respect to the same to impart movement to the reproducer to return the reproducer to its starting position when the reproducer is lifted from the record. and means for effecting relative movement between the member and the support when the latter is moved upwardly to lift the reproducer from the record.

31. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a support movable upwardly and downwardly, a bracket element mounted for horizontal pivotal movement on the support, a sound reproducer adapted for cooperation with a sound record and including a horizontally swinging arm mounted onand movable with the bracket element and adapted to be operatively engaged with the sound record by the downward movement of the support and to be withdrawn therefrom by the upward movement of the support, and means engageable with the bracket element for actuating the same to swing the arm and the sound reproducer to return the latter to its starting posi-' tion when the support is moved upward tov liit the reproducer irom the record.

32. In mechanism for reproducing and repeating the whole or any selected portion of a sound,

record. a support movable upwardly and downwardly,'a sound reproducerincluding a horizontally swinging arm carried by the support, said sound reproducer being adapted to be operatively engaged with a sound record by the downward movement oi the support and to be liited irom' the record by the upward movement of the sup port. means for raising and lowering the support and for swingingthe arm to return the repro-' ducer to its starting position comprising an electric motor device, an electric circuit including the said device. a movable contact associated with the horizontally swinging arm and movable,

with the same. a normally stationary contact arranged in the path of the movable contact ior closing said circuit to operate the electric motor device. and means ior connecting the movable contact with the tone arm for adjusting the tone arm with relation to the movable contact. a 83. In mechanism ior reproducing and repeat- .ing the whole or any selected portion oi-a sound record, a support movable upwardly and downwardly. a sound reproducer including a horizon tally swinging arm carriedby thesupport. said sound reproducer being adapted to be opera tively engaged with a sound record by the down- I ward movement oi the support and to be liftedthereirom by the upward movement oithe support, means for moving the support'upwardly and downwardly and for swinging said arm to return the sound reproducer to itsstarting position comprising an electric motor device. a motor circuit dicating means associated including a normally stationary contact, a mov able contact associated with the horizontally swinging arm and movable with the same for closing the circuit to iiit the reproducer irom the record when the selected portion oithe same has been played. a'mercury switch arrangedin parallel with said contacts for holdingthe circuit closed until the reproducer has returned to its starting position. and means for operating the mercury switch including a spring for moving the mercury switch in one direction. and a cam actuated by the motor for moving the mercury switch in the opposite direction.

34. In mechanism for reproducingand repeating the whole or any selected portion of a sound record. a soundreproducer including a horizontally swinging arm and adapted for waction with the sound record. means for varying the horizontal swinging oi the arm including gearing connected with the arm, a drum for rotatin'gthe gearing provided with a spirally graduated peripheral portion comprising a plurality of convolutions and having graduations corresponding to the pitch grooves oi a, sound record and extending around the drum a plurality of times. in-

with the spirally graduated portion 0! the drum. and cooperating with the graduatlons' thereof, and means for causing the indicating means to move automatically transversely of the drum when the latter is rotated. I

35. In mechanism for reproducing and repeat-. ing the whole or any selected portion of a sound record including a support provided with a vertical spindle, a supporting arm loosely arranged on the spindle. a sound reproducer including a "tone arm pivoted to the supporting arm, and

means for adjusting the supporting arm and the tone arm comprising a member having spaced lugs receiving a portion of the supporting arm between them. an adjusting screw mounted on one oi the lugs and engaging the supporting arm atone side thereof and'yieldable means mounted on the other lug and engaging the adjacent side of the supporting arm and cooperating with the screw ior eflectlng an adjustment of the supporting arm with relation to the said member.

' 36. In mechanismior reproducing and repeat- "ing thewhole or any selected portion of a sound record,-including means for rotating a sound record, a tone arm. tone arm supporting means mounted ior horizontal pivotal movement to permit the swinging oi the tone arm, means connected with the tone arm and the supporting means for adjusting the tone arm for positioning the stylus oi the tone arm to a relating groove position on the record. an electric contact carried by the supporting means. a second electric contact. means for positioning the second contact the necessary distance in advance of the first contact to repeat the whole or the selected portion 0! the record. a motor actuated repeat mech- I anism having a motor circuit including said contactsgand means iorreturning the tone arm supporting means tojaideilnite position and the tone'arm to its selected starting position.

-37. In mechanism ior reproducing and repeating the wholeor-any selected portion or a sound record, including means ior rotating a sound record. a tone arm. tonearm supporting means mounted for horizontal pivotal movement to permit the swinging oithe tone arm. means connected with the tone arm and the supporting means ior. adjusting the tone arm for positioning .the stylus oi the tone arm-to a relating groove position'on'the record. means for lifting the tone arm irom the record andior returning the tone arm supporting means to a predetermined 1 position and the tone arm to its selected starting position including a motor and a motor circuit .having a pair of contacts. one of the contacts being mounted on the tone arm supporting means and movable with the tone arm and carried into electrical engagementwith the other contact to close the motor circuit, micrometer means for positioning the other contact the necessary distan'ce'in advance of the said movable contact determined'by a chart oi the sound record contentcorrelated' with the micrometer means and iii) with the grooves of the sound record to reproduce and repeat the whole or any portion of the record by the closing of the motor circuit through the feed oi the'stylus oi the tone arm in the groove oi the record which vmoves the movable contact into electrical engagement with the micrometer adjusted contact.

38. In mechanism for reproducing and re-- peating the whole or any selected portion or a sound record, including means for rotating a sound record. a tonearm. tone arm supporting means mounted tor horizontal pivotal movement to permit the swinging of the tone arm, means means and with the grooves of the sound record.

for connecting the tone arm with the support- I ing means for adjusting the tone arm to position the stylus of the tone arm to a relating groove position on the record, repeat mechanism I for lifting the tone arm from the record and for returning it to its starting position including a motor and a motor circuit having a pair of contacts, one of the contacts being carried by the tone arm supporting means and being movable with the tone arm and carried by the same into electrical engagement with the other contact to close the motor circuit, micrometer means having graduations correlated with the grooves of the record for positioning the other contact the necessary distance in advance of the movable contact to reproduce and repeat the whole or any portion of the record by the closing of the motor circuit of the repeat mechanism by the feed of the stylus of the tone arm in the groove of the record which moves said movable contact into electrical engagement with the micrometer adjusted contact to effect operation of the repeat mechanism, the distance being determined by a chart of the sound record having numbers or other characters correlated to the graduations of the micrometer 39. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a sound reproducer adapted for coaction with a sound record, a support carrying the reproducer and movable upwardly and downwardly to operatively engage the reproducer with selected portions of the record and to withdraw the reproducer therefrom, said reproducer being mounted for horizontal swinging movement on the support, and means for returning the reproducer to its selected starting position including a member movably mounted on the support and means operated by the upward movement of the support to effect relative movement between said member and the support for returning the reproducer to said starting position.

40. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a support mounted for upward and downward movement only, a sound reproducer adapted for coaction with a sound record and including a tone arm mounted for horizontal pivotal movement on the support and actuated in one direction by engagement of its reproducer stylus with the groove of the record, said tone arm and stylus being carried to and from the record by the downward and upward movement of the support, means for actuating the record, and means for swinging the tone arm in tne opposite direction to return the tone arm to its selected starting position including a member movably mounted on the support and means for effecting relative movement of said member and said support during the upward movement of the support to cause the said member to swing the tone arm to its starting position.

41. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, a support tiltable on a horizontal axis, a sound reproducer adapted for coaction with a sound record and carried by the support in the tilting movement thereof to operatively engage the reproducer with the-sound record and to lift the reproducer therefrom, said reproducer being mounted for swinging movement with respect to the support, means actuated by the tilting movement of the support for returning the reproducer to its starting position after playing the whole or any portion of the record. and means operable when the reproducer is returned to its starting position for locking the reproducer against movement independently of the support for retaining the reproducer in its starting position until it is lowered to the record by the support.

42. In-mechanism for reproducing and repeating the whole or any selected portion of a sound record, a support, means for mounting the support for upward and downward movement, a sound reproducer including a tone arm pivotally mounted on the support for horizontal swinging movement with respect to the support and adapted to be operatively engaged with a sound record and to be withdrawn therefrom by'the upward movement of the support, means actuated through the upward movement of the support for swinging the tone arm horizontally to return the'same to its starting position when the tone arm is lifted from the record after playing the whole or any portion of the record, and means for locking the tone arm against swinging movement when the tone arm is returned to its starting position and until the tone arm is reengaged with the record. i

43. In mechanism for reproducing and repeating the whole or any selected portion of a sound record, means for rotating a sound record, a pivoted member, a sound reproducer carried by saidmember, supporting means for said member mounted for horizontal swinging movement, means movable upwardly and downwardly to engage the stylus of the reproducer with the sound record and to lift it therefrom, adjusting means for connecting the pivoted member with the horizontally swinging supporting means and for positioning the stylus of the reproducer to a selected groove of the sound record, means for limiting the swinging movement of said supporting means and means separate from the record for operating said raising and lowering means to lift the sound reproducer from the record and return the horizontally swinging supporting means to a definite position and the reproducer to its selected starting position at a greater speed than that of the reproducer when the same is moved inwardly toward the center of the record by the spiral groove thereof.

44. In mechanism for reproducing and repeating the whole or any'selected portion of a sound record, including means for rotating the sound record, a tone arm, tone arm supporting means mounted for horizontal pivotal movement to permit the swinging of the tone arm, means connected with the tone arm and with the supporting means for adjusting the tone arm for positioning the stylus thereof to a relating groove position on the sound record, means for limiting the swinging movement of the tone arm supporting means, and means separate from the record for returning the tone arm supporting means to a definite position and the tone arm to its selected starting position at a greater rate of speed than when the tone arm is moved inwardly toward the center of the sound record by the spiral groove thereof.

45. A device of the class described including a tone arm having a reproducer stylus, a scale Patent No. 2,081,886.

means connected with said means and with the tone arm for actuating the tone arm to move the tone arm at a speed less than said manually operable means to place the reproducer stylus 6 in the groove 01' the sound record related to said selected scale graduation.

46. -A device of the class described including a tone arm having a reproducer stylus, a scale provided with graduations related to each of the 10 convolutions 'o! the sound record, a pointer cooperating with said graduations, manually operable means for eil'ecting relative movement between the scale and the pointer for positioning tone arm at a speed less than said manually operable means to place the reproducer stylus in the groove of the sound record related to said selectedscale graduation. and repeat mechanism for permitting any predetermined number of convolutions ot'the sound record to be repro- 10 duced.

ARTHUR. L; RUNYAN.

GERTIFICATE'OF CORRECTION llay 25. 1937'.

ARTHUR L); RUNYAN.

.It is hereby certified that error appears in the printed' specification oi the above numbered patent requiring correction vas follows: first column, line 32. claim {18, for "form" read worm; and that Letters Patent should be read with this correction therein t may conform to the record, or the case in the Patent Office.

Signed and sealed this 24th day of August, A. D.

I (Seal) Page 10,

1937'. Leslie Frazer Acting Commissioner of Patents.

the said hat the same