US1339474A - Stopping device - Google Patents

Description

-A.POGANY.

STOPPING DEVICE.

APPLICATION FILED JULY 21, 1919.

1,339,474. Patented y 11, 1920.

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APPLICATION FILED JULY 2], i919. 1,339,474. Patented Mayll, 1920.

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ANTHONY GABRIEL, or PHILADELPHIA, PENNSYLVANIA.

STOPPING DEVICE.

Application filed July 21, 1919.

To all whom it may concern:

Be it known that I, ALFRED PooANY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Stopping Devices, of which the following is a specification.

One object of my inventionis to provide a device which will automatically stop the rotation of a record after a selection has been played and will stop the record in such position that the sound box and reproducing needle will be out of engagement with the will be stopped without the usual harsh sound caused when the record slows up prior to stopping as is the usual result of stopping devices now on the market where the needle is permitted to remain in engagement with the record during the stopping action.

Another object is to so construct the device of my invention that the actual stopping action of the record will begin to take place after the needle has been moved out of engagement with the record so that there will be no friction between the record and the needle when the beginning of the actual stopping movement between the parts takes place.

A further object is to make the parts of my invention of a durableand strong construction and their action.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which--' Figure 1 is a top plan view, partly broken away, showing my invention attached to a sound reproducing machine and showing the parts in a setting position,

Fig. 2 is a viewof the same general na-v ture as Fig. 1 showing the parts in a position after having been set and the tone arm in a position ready to start the playing of the record,

Fig. 3 is a fragmentary side elevation, partly broken away, showing the elements of my invention, and illustrating in dot-anddash lines the two positions respectively occupied by the tone arm, sound box and re Specification of Letters Patent. 7

' producing so that they will be positive in Patented May 11, 1920.

Serial N0. 312,242.

needle when the record is being played and also when the device isoperated to stop the rotation of the record,

Fig. 4 is a fragmentaryplan view of cer tain of the parts of my invention in a set position,

F ig. 5 is a section taken on the line 5-5 of Fig. 4E, certain of the elements being shownin outside view,

Fig. 6 isv a fragmentary plan view showing the elements illustrated in Fig. 4 in a position having been released'to cause the auto-' matic stopping of the record, and

Fig. 7 is a section taken on the line 7-7 of Fig. 6, showing certain of the parts in outside view. 7

Referring to the drawings, 8 represents a turntable having a record 9 thereon, and 10 represents a rotatable sleeve support upon which is pivoted at 11 a tone arm 12 having a sound box 13 thereon, said sound box supporting a reproducing needlelt. The rotatable sleeve 10 and turntable are rotatably supported by a supporting structure 15 which can be in the form of a cabinet of any of the usual constructions.

.A cap 16 includes a weight 17 which is provided with a hole 18 adapted to be placed over the usual center pin 19 and rest upon the top ofthe record 9. A column 20 projects centrally upon the upper face of the weight 17 and this column includes a helical groove 21 which pitches upwardly and blends or merges into a spiral groove .22

formed in the top face of the column 20. A

mounted directly upon the top of the weight 17. A positioning pin 24 projects upwardly from the top of the weight 17, preferably at a position remote from the spring strip 23 and is for a purpose hereinafter to be described.

A collar 26 is rotatably mounted around the sleeve 10 and to this collar is hinged at 27 an arm 28. This arm 28 at its forward end has a rod 29 screwed therein, said rod having a knurled head 30, whereby. it can be turned to vary its vertical position relatively to the arm 28. A projection 31 on the arm 28 is adapted to engage the outer surface of the collar 26 and limit the downward hinging movement of said arm 28 upon said free end 25 of the collar. It will thus be noted that the tone arm 12 and arm 28 can be respectively raised on the pivot 11 and hinge 27. A second arm 32 is positioned on the arm 28 and is pivoted thereto by a pivot 33. One end of the arm 32 has worm-teeth 34 formed thereon which. are adapted to mesh with a worm 35 journaled on the arm 28. The worm 35 is capable of being rotated by a knob 36, but is prevented from relative longitudinal movement transversely on the arm 28 by being mounted between lugs 37 which form part of the hinge 27, as clearly shown in Figs. 1, 2 and 3.

I. wardly on its 7 clamped or seta depending lip 51 lever 45 is closer The collar 26 has a lever 38 adjacent its bottom and positioned below the turntable 8. A pivot post 39 projects from a base plate 39 which is secured to the supporting struc ture 15 under the turntable 8 and this pivot 1 post forms a rotatable bearing for a plate 40. The plate 40 has a brake shoe 41 thereon and an edge portion 42 which is arranged ecc'entrically to the axis of the pivot post 39 and forms a cam for pushing a latch 43 uppivot 44 out of engagement with a detent lever 45, said detentlever being rotatably mounted on the pivot post 39 andhaving one endof a spring 46 secured thereto, said spring being coiled around the pivot post 39 and having its opposite end pressing against a v the base plate 39*. The plate 40 has a notch or indentation 48 which is produced partiallyby the eccentric edge portion 42 and by a projection 49 which supports the brake shoe 41. IVhen the parts are in their position, as for example as is shown in Figs. 1, 4 and 5, the latch 43 extends within the notch 48 and is held between the projection 49 and the upper end 50 of the detent lever 45, the spring 46 endeavoring to move the detent lever 45 from the position shown in Fig. 4 to the position shown in Fig. 6. The plate '40 has which is adapted to be engaged by the end 52' of the detent lever 45, when the latch 43 is raised by the eccentric portion 42 under certain conditions, and it will be noted that the end'50 of the detent to the pivot post 39 than is the extreme outer portion of the'eccentric edge 42. However, when the parts are in the position for example as shown in Figs. 1 and 4', the spring 46 will exert pressure on the detent lever 45 to cause the latter to press against the latch 43 so that the latch Wilhprevent cloclnvise movement of the plate 40 and detent lever 45. The plate 40 has an arm 53 adapted to be engaged and -moved by the lever 38, and a handle 54 extends'- outwardly from said plate 40 to a position beyond the turntable 8, as shown in Figs. 1 and 2;

The arm 32 has a finger 55 projecting upwardly therefrom is adapted under certain conditions to be engaged by the tone lug 47 which is fixed on 1 taking arm 12, said tone arm being at such level as to pass over the top of the arm 32 and engage the finger 55. V

In the operation of my invention, the arms 28 and 32 can be raised 011 the hinge 27 to permit the record to be placed upon the turntable, after which the arms 28 and 32 can be lowered and the cap 16 is placed upon the record so that the center pin19 registers with the hole 18 in the weight 17 and so that the positioning axis of the centerpin 19 and the rod 29. The tone arm is then moved so that the reproducingpin 14 engages the last playing groove of the record, and the arms 28 and 32 are then swung toward the tone arm until the finger 55 engages the tone arm. The finger '55 is then manually held-to the tone r pin24 is in line with the v arm and the knob 36 is rotated until the rod 7 during the playing of the record; After the record has arm will engage the finger 55 and swing the arms 28 and 32 until the rod 29-is embraced spring strip 23 and by the free end 25 of the been completely played, the tone carried, due to the spiral shape of said spring strip 23, into the'helical groove 21 whlch Wlll cause the arms 28 and 32 to be swung upwardly on their hinge 27 and also cause the tone arm to be lifted on its pivot 11 to disengage from the record. After the rod 29 reaches the top of the helicalgroove 21, it will be carried by the spiral groove 22 on the top of the column 20 toward the center or axis of the pin 19 and in so move the arm 53 of V the'cam portion 42 to raise the latch 43' out of engagement with the end 50 of'the detent lever 45 and permit the spring 26 to swing the detent lever and with it, due to the engagement of the end 52 with plate 40 so as to move the brake shoe' '41 into engagement with the depending flange 56 of the turntable 8 and thereby stop theturntable after the reproducing needle has been raised out of engagement with the record.

The handle 54 of the plate 40 can be operatcd to move the plate so as'to permit'the rotation of the turntable and to re-set the latch 43 between the end 50 of the-detent lever 45 and the While I have'des'cribed 'myinvention as a particular form, it will beunder stood that the various parts of my invention may be changed withoutf departing from the;

considerthat I am at liberty to'mako such the reproducingneedle 19 doing, the lever 38 will i the plate 40 and cause the lip 51,- the i projection 59 of saidplate.

changes and alterations a; fairly come with in the scope of the appended claims.

7 Having thus described my invention, what i claim as new and desire to secure by Let ters Patent is i 1. T he combination with sound reproducing mechanism including means for rotating a record and reproducing means for engage ment with said record; means operative to stop the rotation of said record; means movable in conjunction with said sound reproducing means; and means movable in conjunction with said record and having portions successively operative for raising the sound reproducing moans out of engagement with said record and for actuating said movable means through the medium or movement of said sound reproducing means to ei ect the operation of said stopping means; substantially as described.

2. The combination with sound reproducing mechanism including means for rotating a record and reproducing means or engagement with said record, of means rotatable with said record and having a helical portion and a spiral portion; means movable by said sound reproducing means into engagement with said helical portion, whereby the reproducing means is raised out of engagement with the record, said raising means being then actuated. by said spiral portion to move it toward the axis of the record; and means automatically operative by the movement of said raising means to stop the rotation of said record; tially as described.

3. The combination with sound reproducing mechanism including means for rotating a record and reproducing means for engagement with said record; of means adapted to be placed on said record and rotatable therewith, said means having a continuous helical and spiral portion; two arms adapted to support said reproducing means, one of said arms being pivotally connected to the other; means for moving one of said arms relatively to the other, one of said arms having a portion for engagement with said helical and spiral portions, the other of said arms having means for abutment with a part of said sound reproducing means, whereby the movement of said sound reproducing means in playing a record will effect the movement of said arms and cause said portion on one of the arms to engage said helical portion and be raised thereby, due to the rotation of said record, and raise the sound reproducing means, and afterward move into said spiral portion; and means automatically operative to stop said record after the engagement with said portion on said arm with said spiral portion; substantially as described.

4. The combination with sound reproducing mechanism including means for rotatsubstaning a record and reproducing means for engagement with said record; of means adapted to be placed on said record and rotatable therewith, said means having a continuous helical and spiralportion; two arms adapted to support said reproducing means, one of said arms being pivotally connected to the other; means for moving one of said 7 arms relatively to the other, one of said arms having a portion for engagement with said helical and spiral portions, the other of said arms having means for abutment with a part of said sound reproducing means, whereby the movement of said sound 'reproduclng means in playing a record will effect the movement of said arms and cause said portion on one 01. the arms to engage said helical portion and be raised thereby, due to the rotation of said record, and raise the sound reproducing means, and afterward move into said spiral portion; a rotatable collar to which said armsare hinged; a lever connected to said collar; and braking means operated by said lever'to stop said record; substantially as described.

5. The combination with sound ,reproducing mechanism including means for rotating a record and reproducing means for engagement with said record; of means adapted to be placed on said record and rotatable therewith, said Ineans'having a continuous helical and spiral portion; two arms adapted to support said reproducing means, one of said arms being pivotally connected to the other; means for moving one of said arms relatively to the other, one of said arms having a portion for engagement with said helical and spiral portions, the other of said arms having means for abutment with a part of said sound reproducing means, whereby the movement of said sound reproducing means in playing arecord will effect the movement of said arms and cause said portion on one of the arms to engage said helical portion and be raised thereby, due to the rotation of said record, and raise the sound reproducing means, and after ward move into said spiral portion; a rotatable collar to which said means are hinged; a lever connected to said collar; a pivoted plate having an eccentric portion; a detent lever; a latch normally held between said detent lever and a portion of said plate; a brake shoe movable by said plate; and a spring lever in engagement with said latch, said first lever being operative to move said plate to cause said eccentric portion to move said latch out of engagement with said detent lever and thereby permit said spring to move said plate and thereby cause the brake shoe to automatically eilect the stopping of said record; substantially as described.

6. The combination with sound reproducefor holding said detenting mechanism including means for rotating a record and reproducing means i'or engagement with said record; or means adapted to be placed on said record and rotatable,

therewith, said means having a continuous helical and spiral portion; two arms adapted to support said reproducing means, one of said arms being pivotally connected to the other; means for moving one of said arms relatively to the other, one of said arms having a portion for engagement with said helical and spiral portions, the other-of said arms having means for abutment with a part of said sound reproducing means, whereby the movement of said sound reproducing means in playing a record will ef feet the movement of said arms and cause said portion on one of the arms to engage said helical portion and be raised thereby, due to the rotation of said record, and raise the sound reproducing means, and afterward move into said'spiral portion; a rotatable collar to which said means are hinged; a lever connected to said collar; a

pivoted plate-having an eccentric portion; a detentlever; a latch normally held between said detent lever and a portion of said plate; a brake shoe movable by said plate; and a spring for holding said detent 1 lever in engagement with said latch, said first lever being operative to move said plate to cause said eccentric portion tomove said latch out of engagement with said detent lever and thereby permit said spring to move said plateand thereby cause the brake shoe to automatically effect the stopping of said record, said plate having a lip for engage

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