US1277449A - Stop mechanism for talking-machines. - Google Patents

Description

F. MALQCSAY. STOP MECHANISM FOIITALKING MACHINES.

APPLICATION FILED SEPT. 2|, I915.

Patented Sept. 3,1918.

3 SHEETS-SHEET I.

F. MALOCSAY. MECHANISM FOR TALKING MAcHmEs. APPUGATION FILED SEPT. 2!. I915.

' STOP PatentedSept 3,1918

3 SHEETS-SHEET 2.

. and will be more OF NEW YORK, N. Y.,

ASSIGNOR T0 SONORA rnoivocnnrn CORPO- RATION, A CORPORATION or NEW YORK.

sToP MECHANISM FOR TALKIivoMAcHI'NEs.

Specification of Letters Patent.

Application fil ed September 21, 1915. Serial No. 51,886.

To all whom it may concern.

Be it known that I, FRANK MALOCSAY', a citizen of the United States, residing in the borough of the Bronx. county of Bronx, city and State of New York, have invented certain new and useful Improvements in Stop Mechanism for Talking-h Iaehines, of which the following is a specification.

My invention relates to talking machines of the type known as disk record ine'chines, and is of the same general type as the device shown in my co-pending application, Serial No. 879,865, filed December 31, 1914.

The object-of my present invention is to simplify the construction of the before mentioned apparatiis,-and to produce a device which will operate on disk records which do not run true.

A further object is to so construct the device that it will have fewer operating positive in its actions.

A further object is to so construct and proportion the parts that ,while the operator is placing the soundbox in position to reproduce. the turn-table iiiay travel while the toiie-arm is not traveling across the record groove.

These and further objects will more fully appear in the following specification and iic(.-oiiipaii ving drawings considered together or separately.

My'inventioii is illustrated in the accoml'itlll illlg drawings, in which similar reference characters designate corresponding parts in all of the figures, and iii-which,

Figure 1 is a plan view of a disk record .talkiiig iiia'cliine embodying my invention, and withparts the rover being removed broken away; lflgig. 2 is a front elevation of the same with a portionof the casing reinoved.-; 1 i Fig. is a plan view ofthe operative parts vot' the device. the tone-arm being omitted. the brake being shown out of engageiiieiitwith the tHIIPltLlJlQ;

Fig. 4 is a similarview showing the brake applied to the turn-table; 3' Fig. a horizontal section showing the parts in position for the preliminary I'Otation of the turn-table;

parts,

Fig. 6 is a Fig. 7 is a section 'oii'the fline 7-"-7 of Fig.3;tllld i j Fig. 8 is a sectional view ofap'ortion of a disk recordta hlet.

In the drawings. 1

section on the lin of represents a cabinet in which is carried the ltSltilllflOllOl and sound aiuplifviiig device andhaving-its front panel provided with openings through which the sound may be conveyed to the atmosphere. The cabinet is provided with a horizontal 'iartition 2-.i1nd a cover (not shown). The-shaft of t lu-rmotorprojects through the shelf and carriesa tlllli'tfible 4, upon which is supported a recorddisk The disk has upon its face the usual spiral record groove 6. At the outer end of'the groove ti a safetygroove T is provided. This groove is concentric with the center of the motor shaft similar safety Patented Sept..3..1918.

groove 8 is impressed, cut. or engraved on the surface of-the (lislt at the inner end of the record groove.

Pi voted so as to swing lioi'izoiitaltvacross the record disk is a to'ne-ari'n 9, on the outer end of which: is the usual sound hox 10 carrying a stylus or roprodiicer of a suitable type. a i

Secured to the partition 2 is a bed plate 11, on which most of the operating parts of the device are located. The .motor shaft- 3 projects throughthe bedp-late. and pivoted on the plate at 12 is a-lever 13.- T-his lever rests upon the base plate,- and is provided with an opening 14..-whic h surrounds the motor shaft and permitsomovemen't 0f the shaft relatively .theretor .-;Garried on the n otorrsha-ftisa.spiirwheel 11"), which is in mesh. with a similar. spur wheel 5 16 carried on; a stud-shaft 1'1- :oi'i the l-ever 13. "The stud-shaft is provided with a spur pinion 18.,w-liich is in .mesh with a gear 19;"carried on' a stud 20 on the lever--13: Rigidly secured to the gear Iii-"is a-caiu 21:. A 'second cam 22 is similarly seoiiredto' the gear. The gears 15 and 1.6 are of'the samepitch diameter. andthe 19have a ratio of l to 3.,- 22 will therefore rotate at pinion 18 and-gear i speed of the motor shaft, and in the same direetiou.

Secured to the tone-arm by means of a clamp is an arm 23, the outer end of which forms an open yoke 24. -Loosely earried on the outer how of the yoke is a slide 25, the upper surfaee of which is reeessed to -permit the passage of a swinging arm 2f). The. arm 26 is loosely pivoted to the lied plate, and when in operative. position, extends in a direction toward the eenter of the stud 20. The recess in the top surfaee of the slide 25 is wider than the arm 26, to allow for movement of the arm relatively to the slide. The arm 26, approximately midway between its pivot and extreme end, is provided with a depending pin :27- whieh extends down nearly to the The opposite end of the slide is rounded,

and is' held in yielding engagement with Y the. (am 21 on the stud :20. 'h. means of a spring 29".

Pivoted at 31 to thelied )late. is a finger 32; The free end of the. pressed against the ram 22 hy means of the spring nieniher 31. A projeetion 33 on the free end of the finger is adapted to lie in longitudinal alinement with the eenter line of the arm 26 when the latter is inoperative position.

The free end of the lever I3 is provided with a finger EH. whit'h engages :1 trigger 35 earried on the short end at a lock lever 36. The loek lever is pivoted at 37 to the partition 1 and is provided with a finger 51. and a handle 5'2. The lever 13 is held with the ram 22 in engagement y'vith the finger 32 In" means of a. spring 38. and the lever 36 and trigger 35 are held in engagement with the finger 34. by means of a spring 39. The. trigger fifi is pivoted to the short end ofthe lever 3th and has'one arm 40 note'hed for 'enarm 45 of the angle leveris held liy a spring 46 inengagement with theff'eam 22. 4 In the emlmdunentof the lltVtlltlUHllltlS- trated. the ratehet wheel tiiis provided with teeth. one of whieha" 47. is of donhle length. so that -when the pawl 43 rests in the spare 47. it will not. by the operation of the angle lever. feedthe ratrhet wheel forward.

Mounted on the partition adj'ae'ent to the periphery ofthe turn-table. is a hand nger is spring-,

' the same ()a the upper surface of the slide, and eovermg the reeess. is a keeper plate 53. This plate is normally out of contact wlth the arm 26, hut prevents its ('(ltltlttttl removal from the reeess during transportation.

A stop 54 is carried by the shelf 2 at each.

side of the slide to prevent too great movement. thereof.

l have shown the record diskovith two safety grooves 7 and it. These YIQDVBS are produeed in the manufacture oft 1e disk and define the spare on which the spiral record groove is to he. impressed. But one of the safety grooves.that at the end of the reeord groo\ e,is neeessary to the operation of the deviee. hut as in disks turned out by some manirfaeturers. have the record groove heginning at the inside and working out ward, and others ha re. the groove lieginning at the. outside. and'working in, I prefer to have the two safety grooves in the disk, so that it ran he used with either style of record groove. it. will he understood that. the invention may he earried out without the use of the safety groove. for the reason that without the safetygroove, when the stylus re'aehes the end of thereeord groove. it will run upon the [lat surface of disk, and the feed of the tone-arm will ('ease.

The operation is as follows:

\\hen the rotation of the. turn-tahle has been arrested hy the a ppli ition of the brake, the parts willv he in the position shown in Fig. 4. The stylus is raised from eontaet with the disk hy throwing the sound-hex hark on the tone-arm. whieh is then swung to a position-in \\'lllt'lt it 'will not he ahove. the disk. The played disk will now he. re-

moved from the turn-tahle and a new one suhstituted. The handle of the lever 48 will he moved'to the right. the brake shoe will release the tln'n-tahle. whieh will hegin to rotate. The finger 51. of the lever 13, will he moved, by the spring 39 to engage the hrake shoe and retain it in position away from eontaet with the turntable, as shown in Figs. 1 and It. The train of gears 15, 1(3,

18 and 19, will he set in motion. together with the eams 2t and 22. The cam 22 'will engage the arm 4:"), and tilt the lever 44.

whieh 'will eause the pawl 43 to feed the ratchet wheel 42. one. tooth for eaeh rotation of the ram 22. Ateaeh rotation of the same cam. the finger 32 will he moved into en-- gagement with the-swinging arm 26 whieh is eentered at eaeh revolution of the ram 21, whieh moves the slide 29. so that its notched end hrings the swinging arm to its eentral position when the projeetion 33 strikes the end of the Swinging arm, the lever 13 will be swung in a direction away from the swinging arm, and the finger 34 will engage the lever 35 and cause it to swing on its pivot. 1

While the above described operation is going on, the operator is swinging the tonerevolution. and the pawl 43 will rest in the long space 47, and as thethrow of the lever 44 is not suflicient to cause the pawl to travel far enough to engage the next tooth, the rotation of the ratchet will cease, While the action of the lever continues. The pin 41,.of

the ratchet will now have engaged the notiih in the arm 40 of the trigger 35, and the latter is looked a ainst movement relatively to the lever 36. hile the ratchet whebl 42 is being rotated by the engagement of the pawl -13 with the short teeth the trigger will be out of the path of the finger 34 and the ll'lOYBll'lQfltS of the lever 13 when the finger 33 t and arm 26 engage will not be communicated to the lock lever and the brake shoe will remain in engagement'with-the turntable while the tone-arm is being .set in its neutral position.

As the tonearin 9 and yoke 24 are fed acrow the line of the spiral record groove by the engagement of the stylus with the recordgroove, the frictional engagement of the slide 25 with the yoke will move it, the slide, in the direction of the travel of the tone-arm, and the slide will engage the swinging arm and cause it to swing in the same direction. The slide 29 will be moved against the tension of its spring 29 at each revolution of the cam 21, and the V shaped notch 30 in its end will engage the pin 27 and swing 'the arm, and .with it the slide, back to the central position of the arm. As soon as the greater diameter of the cam 21 leaves the end of the slide, the latter, under the influence of its spring. will 'recede from its point of engagement with the pin- 27, and the swinging arm will be swung to one side by the frictional engagement of the slide with yoke. The high part of the cam 22 will now engage the finger 32, and move the projection 33 toward the end of the swinging arm, the path of the projection being in line with the central position of the arm, but as the arm has been swung to one side, the projection will not engage it.

When, however. the feed of the tone-arm' and yoke have b03611 arrested by the stylus passing out of the record groove, and when the swinging arm 26 has been centered, by

the pro ection 33 is again moved outward,

a ratchet wheel 42 will be given a partial revolution by the engagement of the arm 40 with the pin 41. This will move the ratchet wheel a distance sufficient to remove the pawl 43 from the long space 47, and into engagement with a tooth back of it. This will leave the mechanism in position shown in Fig. 4 in readiness to operate, as before. In accordance with the provisions of the patent statute, I have described the principle of my invention together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other ways without departing from the spirit of my invention.

Having now described my inventiornwhat I claim as new and desire to secure by Let- :ters Patent of the United States, is as follows:

1. In a talking machine, the combination with a rotating element and a brake therefor, of a member movable across the path of rotation of the element, an arm moved by the member, a lever, a rotating'element carried by the lever, a finger operated by the rotating element, a brake holding device, means for moving the lever to operate the device to release the brake when the arm and finger are in a predetermined position, a second lever cotipcrat ing with the rotating element, and means operatable by the second lever for enabling the first mentioned lever to be 0peratcd without causing the brake to be applied.

2. In a talking machine, the combination with a rotating clement and a brake therefor, of a member movable across the patlrof rotation of the element; an arm moved by the member. a lever. a rotating elcmcnt'carricd release the brake when then rm and finger arc in a predetermined position, a second lover cooperating with the rotating clement,

and means operatable by the second lever for j enabling the first mentioned lever to be'opcratcd without reusing the brake to be applied.

2-5. In a talking maehine, the combination with a rotating element and a brake therefor, of a member movable aeross the, path of rotation oi the element, an arm moved by the member, a lever, a rotating element rarried by the lover, a linger operated by the. rotatingelement, a slide for moving the :u'm in a dirertion opposite to that of the movement of the member, a brake holding device, means for moving the lever to operate the device to release the brake when the arm and finger are in a predetermined position. a seeond lever cooperating with the rotating element, and means operatable by the seeond lever for enabling the first mentioned lever to be. operated without causing the brake to .he applied.

a brake holding devire, means for moving the lever to operate the deviee to release the brake when the. arm and finger are in a predetermined position. a St('.()li(l lever eooperating with the rotating element, and means operatable by the second lever for enabling thefirst mentioned lever to be operated without causing the brake to be applied.

In a talking machine, the combination with a rotating element, and a brake therefor, means for applying the brake, of a member movable aeross the path of rotation of the element, a slide carried by the member, a pivoted arm resting on the slide, and movable therewith. a-master lever, abrake holding device, said device engaging the master lever. a rotating element. rarried by the master lever. a pivoted finger engaging the element and movable thereby to engage the arm when the latter is in a predetermined position. and swing the master lever and brake holder to release the brake, a trigger earried by the brake holder, means for hold.- ing the trigger in the path of the master leverto move the brake holder, and means for. moving the trigger relatively to the hrak'edever to allow the master lever to move without applying the brake.

6.. In a talking machine;- the combination I with a rotating element, and a brake there,- .for',nieans forapplying the 'rake, of a member movable across the ath of rotation of the. element, a slide carried by the member, and; frictionally engaging the latter, a pivoted arm resting on the slide and movable .he rewith, a master lever, a device for hold-- ing the brake infindperative position, said deviee engaging the master lover, a rotating element (arried by the master lever, a pivoted linger engaging the element and movable thereby to engage the arm when the latter is in a prwlet'erminod position, and swing tlie'master holder and brake. lever to release. the brake, av trigger earried by the brake holder. means for holding the trigger in the path ol the master lever to move the brake holder, and means For moving the trigger relatively to the brake holder to allow the master lever to move. without applying the brake...

T. In a talking maehine, the, combination with a rotating element, and a brake. therefor, means for applying the brake, of a member ,movable aeross the path oi rotation of the element. a slide rarried by the member. stops for limiling the movement of the slide. a pivoted arm resting on the slide, and movable therewith. a master lever. a devioe for holding the brake in inoperative position. said tlt'l'lt't' engaging the master lover, a rotating element earried by the master lever, a pivoted linger engaging the element. and movable thereby to engage. the, arm when the latter is in a predetermined position, and swing the master lever and brake holder to release the brake. a trigger carried by the brake holder. means for holding the triggerinthe path of the master lever to move'the brake holder. and means for moving-the trigger relatively to the brake holder toallow the master lever to mom without applying the brake.

8. in a talking maehine. e combination with a rotating element. and a brake therefor, of .1 member movable a ross the path of rotation oi the element. a slide rarried by the member. stops for limitingthemovement of the slide, a pivoted arm resting on the slide, and movable therewith, a bridge for retaining the arm in position. a master l.ever, a brake holding derive engaging themaster level. a rotating element earried by the master lever. a pivoted linger engaging the. element and movable thereby to engage the arm when the latter is in a predetermined position. and swing the mast-er lever and brake holder. means for holding the trigger in the path of the master lever to move the brake holder. and means for mov ing the trigger relatively to thebrakeholder to allow the master lever to move without applying the brake 9. in a talking marhine, the eombination with a'rotating element.- and a brake there for, means for applying the brake. of a member movable across the path of rotation of the element. an arm moved by the member, a lever. a rotary element rarried by the lever, a finger operated by the rotary element. means for moving the lever' aml releasing the brake when the-arm and finger are in a. predetermined position. a serond lever C operating with the rotary element, a brake lever for holding the brake inoperative, and a trigger carried thereby, said trigger c0- operatmg with the first mentioned lever, a ratchet wheel, a pawl on the second mentioned lever engaging the ratchet wheel, said ratchet wheel having a blank space in which determined position, a second lever cooperating with the element, a brake lever, and a trigger carried thereby, said trigger cooperating with the first mentioned lever, a ratchet wheel, a pawl on the second mentioned lever, engaging the ratchet wheel, said ratchet Wheel havinga blank space in which the pawfrcsts, means carried on the trigger for rotating the ratchet'vvheel, and

means for disconnecting the trigger andratchet Wheel.

This specification signed and witnessed this 14th day of September, 1915. V

FRANK MALOC'SAY.

Witnesses: I

' JOSEPH WOLFF,

Geo. E. BRIGHTSON.

Images