US1225560A - Attachment for phonographs. - Google Patents

Description

F. L. BARROWS.

ATTACHMENT FOR PHONOGRAPHS.

APPLICATION FILED IULY 13. I916- 31. @%5,56@D Patented May 8, 1917.

2 SHEETS-SHEET l.

A Tram/5Y8 F. L. BARROWS.

ATTACHMENT FOR PHONOGRAPHS. APPLICATION FILED JULY 13,1915.

LE2 I Patented May 8,1917.

2 SHEETS-SHEET 2.

FRANK LEE BARROWS, 0F MOSCOW, IDAHQ.

ATTACHMENT FOR PHONOGRAPHS.

menace.

Specification cf Letters Patent. 2

Patented as e, was.

Application filed July 13, 1916. Serial No. 109,047.

To all whom it may concern:

Be it known that I, FRANK L. BARRows, a citizen of theUnited States, and a resident of Moscow, in the county of Latah and State ofldaho, have invented an Improvement in Attachments for Phonographs, of which the following is a specification.

My invention is an improvement in attachments for phonographs, and has for its object to provide an attachment capable of connection with a phonograph. of ordinary type and operated by the motor of the phonograph for permitting a series of records to be played in succession, wherein mechanism is provided for lifting the reproducer arm at the end of each selection,

and moving it to the place of beginning,-

and wherein other mechanism is provided for removing the uppermost record. while.

the arm is lifted.

In the drawings: 7

Figure 1 is a top plan view of the attachment in place, showing the parts at the commencement of the playing of a record.

Fig. 2 is a similar view showing the position of the parts at the end of the playing of a record. r

Fig. 3 is a similar view showing the position of the parts during the removal of the record.

Fig. 4 is a perspective view throwing mechanism.

Fig. 5 is a section on the line 55 of of the gear Fig. 4.

Fig. 6 1s a section through one of the spring plungers.

Fig. 7 is a perspective view of the reproducer moving lever.

Fig. 8 is a perspective view of the cam for operating the removing arm.

The attachment consists of two portions, namely the reproducer arm operating mechanism and the record removing mechanism. The attachment is shown in connection with a phonograph 1 of ordinary construction, having a turn-table 2 for receiving the records 3, which are placed upon the turntable in superposed relation, and from which they are removed onto a table 4 arranged adjacent to the phonograph casing. The reproducer arm 5 is mounted to swing in the usual manner from the end of the .record to the commencement, the record shown in the present instance reading from periphery to the center.

The reproducer 6 is carried by the U- shaped member 7 which is pivoted at the end of the arm on a transverse axis to permit the reproducer to be swung upwardly away from the record before it is moved outwardly. A lever 8 is pivoted on the reproducer arm, and a link 9 connects one end of the lever with the U-shaped member 7, the said connection being a lost motion connection, as shown. This lever is operated by a pin 10 on a disk 11, which is secured-to a stub shaft 12, and the stub shaft is provided with the gear wheel 13 below the disk. Y

This gear wheel meshes with a pinion 14 which is adapted to be connected with a pinion 15 on the motor shaft 16 of the machine.

These pinions l4 and 15 are normally disconnected, being spaced apart from each" position of Fig. 4 by a cross or trip lever 20 journaled on the shaft 12 between the disk 11 and the gear wheel 13. This lever, as shown, extends beyond the periphery of the disk and has an angular portion extending above the disk, as shown more particularly in Fig. 5. This lever normally holds the position shown in Fig. 5, over the beveled end of the lever 18, which is in fact a cam lever.

When the reproducer moves into the position shown in Fig. 2, that is when the end of the record is reached, the end of the lever 8 remote from the reproducer arm will engage the angular portion 21 of the trip lever, and will swing it away from the lever 18, permitting the bevel gear 17 to drop in between the gears 14 and 15, to connect the motor shaft with the gear 13. At the opposite end from the angular portion, the lever 20 has an angular arm 22, which is pivoted to the lever, and normally held in alinement therewith by means ofa coil spring 23. The vertical portion of the angular arm extends above the disk 11, and the said portion is adapted to be engaged by the stop pin to return the lever to the normal position of Fig. 5, and the movement of the lever into return position is limited bya stop 24 on the fixed angle bracket 19 before mentioned. This 35 I the needle.

' 27 of the yoke are provided with pistons 29,

which move in cylinders 28. Each of these v cylinders has a restricted opening at its outer end and a series of openings at its inner end, and each piston is normally pressed toward the outer end of the cylinder by a spring 30. When the pin engages the body 26 of the yoke the said body is moved outward, and the springs 30 are compressed.

' The lever 8 has a depending lug 31 which is engaged by the body, and the lever is swung in a directionto lift thereproducer, to release the needle from the record. The continued moxement of'the disk 11 causes the pin 10 to eventually engage a notch in the lever 8, and when this engagement takes place the lever is moved longitudinally, to swing the reproducer arm from the .center of the record to the periphery, that is to the place of beginning, to the position shown in Fig. 1. This movement takes place while the reproducer is out of engagement with the record. The reproducer must be 'held elevateduntil theplayed record has been removed, and it must be lowered with some. degree of care. For this reason the cylinders which I constitute a ,dash-pot are provided. Afterthe end 10 lifts the body 26- of the yoke, the'restricted openings ofYthe cylinders cause the pistons to returnslowly to the outer end of the cylinder, cushionin downward movement of the reproducer an The mechanism fori removing the, record comprises a removing arm 32 having an an-' gular portion 33. provided with a depending in for engaging the opening of the record.

n' practice this arm will have a rubber sleeve at'the .record and it will be counter- "balanced in such'manner that in normal con:

dition. the pin will drop into the openingof therecord. This arm is journaled upon a cam plate 34, and the arm-has a laterally extending rounded cam 35 at the end remote from the angle portion. The cam plate-34 is pivoted at 36 to the phonograph casing,

which is secured to a nected by a gear whee 39 with and the cam 35 cooperates'with a disk 37 ear wheel '38 conthe gear wheel 13 before mentioned.

The disk is a cam'disk, and it'is provided with a Wrist pin 40. and a segmental cam 41, which is'secured to' the horizontal portion of an angular bracket 42 on the disk in such manner that therounded edge of the I cam is adjacent to, but spaced above the disk. The end of the cam plate remote from the angular portion 33of the record-remov-' ing arm, has a curved cam extension 43, and

at the cam portion '35 of the said arm, the cam plate has a rounded cam 44'registering with the said portion I mechanism, moving into engagement with the record as the reproducer-is lifted and completin the removal of the record before the repro ucer is lowered. When the disk 37 is rotated. the cam member 41 rides. overthe cam surface 35 of the arm 32, moving this cam portion down parallel with. the plane of the cam plate. In such position,

the pin on the angular portion 33 is lifted,

and as soon as the pin 40 engages the adj acent edge of the cam plate, the record re,

moving armv will be swung toward the record on the turn table. The continued movement of the disk will move the arm The above mechanism' operates in sequence with the reproducer arm controlllng.

from the position of Fig.1 to that of Fig. 2,

and eventually to that of Fig. 3, at which time the cam 41 passes off the cam 35, and the pin on the angular portion 33 drops into the opening of the record. The continued movement of the pin 40 on the curved ex the said trip lever to release the lever '18.

The pinion 17' immediately connects the gear 14 with the gear 15 and the cam disks 11 and 37 commence to rotate in the same di-- rection. The weighted pin on the lug 33 is immediately lifted out of contact with the record last' removed, and the arm 32 begins to swing toward the record on the turn table.

In proper sequence the pin 10 will engage the vlever 8, to lift the reproducer and to swing the arm into the position of Fig; 1.

Before the reproducer arm hasbeen swung against the stop 45, the pin on the lug-33 of the record removing arm will be above the opening of the record, and when the cam 41 passes off the cam 35, the arm will begin to remove the record andit will beclear of the reproducer needle before the said needle .is lowered. The gears 14 and 15 are disconnected through the action of the pin 10in connection with the angle arm 22 on the lever 20. When the pin in its conftinued movement engages the. upstanding j portion of the angle arm, the lever 20 will be swung against the stop 24 and over the beveled endof the lever 18, swinging the lever and lifting the gear 17 outof mesh withthe gears 14 and 15. As soon as the lever 20 engages the stop 24, the angle arm 22 will swing downward'as shown in Fig. 5, to'permit the 'passage'of the pin 10.

. It will be understood that in practice the turn table will'be provided with mechanism for lowering the same when the records are support for lifting the 1,225,,aco I cient distance, after the removal of each record. I

It will be noticed froman inspection of Fig. 5 that the upper end of the, angle arm 22 is-beveled in order that. the pin 10 may force the said'arm downward.

I claim: 1. In'combination with a'phonograph, of means operated by the motor of the phonograph and controlled by the position of the lifting the reproducer, moving to commencing position position, said meanscomprising a lever p1v oted to the reproducer arm, a link connecting one end of the lever to the reproducer reproducer when the lever' is swung in th proper direction, a cam disk, a connection between the motor 3 and the cam disk for operating the same, a trip lever for .normallyholding the said connection outof engaging position, and in position to be engaged by; the other end of needle for lifting the reproducer supported lever when the needle is at the end of the record for swing- "ing the said trip lever to release the 0011-" said lever having. a disk having a pin for engaging the notch to first swing the lever to lift the reproducer, and afterward move the lever and the reproducer to commencing position, and means for cushioning the movement of the reproducer toward the record. j v

2. In combination'with aphonograph, of means operatedby the motor of the phonograph and controlled by the position of the p the rep'roducer, moving the reproducer arm to commencing position and lowering the reproducer Iiecting mechanism,

iing a pin for engaging the notch needle is at into playing position,

necting one end of the lever to the reproducer support for lifting the reproducer when the lever is swung 1n the proper direction, a cam. disk, a connection between the motor and the cam disk for operating the same, a trip lever for normally holding the said connection out of engaging position, and in position to'be engaged by the other end of the reproducer supported lever when the needle is at the end of the record for swinging the said trip lever to release the connecting mechanism, said lever having a notch at the said end and a disk havto first swing the lever to-lift the reproducer, afterward move the lever and the reproducer to commencing position.

3. In a combination with a phonograph, of means operated by the motor of the phonographv and controlled by the position of the needle for lifting the reproducer,

moving the reproducer arm to commencing position and lowering the 'reproducer into playing position, such means comprising a lever pivoted to the reproducer arm, a link connecting one end of the lever to the reproducer support for lifting the reproducer when the lever is swung in the proper direction, a cam disk, a connection between the motor and the cam disk for operating the same, means for normally holding the said connection out of engaging position and in position to be engaged by the other endof the reproducer supporting lever when the ing mechanism.

such means comprising a lever" pivoted tothe reproducer arm, a link con and I the end of the record, for "operating the said means to release the. connect-j

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