US1225561A - Attachment for phonographs. - Google Patents

Description

F. L. BARROWS.

ATTAEHMENT FOR PHONOGRAPHS.

APPLICATIDN FILED NOV- |6 I916. 1,225,561 0 Patented May 8, 1917.

2 SHEET$SHEET WITNESSES Fraw/kZ-Ba Wm ws (1 TTORll/EYS' F. L. BARROWS.

ATTACHMENT FOR PHONOGRAPHS.

APPLICATION FILED NOV. 16. 1916.

31 2@5,561o Patented May 8. 1917.

2 5HEETSSHEET 2- (g mil Ewan FRANK I1. BARROWS, OF MOSCOW, IDAHO.

ATTACHMENT ron PHONOGRAPHS.

Specification of Letters Patent.

Patented May 8, 1917.

Application filed November 16, 1916. Serial No. 131,689.

T 0 all whom it may concern:

Beit known that I, FRANK L. BARRows, a citizen of the United States, and a resident of Moscow, in the county of Lata-h and State of Idaho, have invented certain new and useful Improvements 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 a phonograph for permitting a series ofrecords to be played in succession, wherein mechanism is provided for removing the topmost record from the turn table when it has been played, and wherein other mechanism is provided for gradually lifting the turn table as the records are removed, to bring the uppermost record into proper playing position.

In the drawings:

Figure 1 is a top plan view of a phonograph provided with the attachment,

Fig. 2"is a detail perspective view of the.

escapement mechanism, the parts being in the position shown in Fig. 3,

Fig. 3 is a section on the line 33-of Fig. 1, looking in the direction of the arrows adjacent to the line, Fig. 4 is a View similar to Fig. 3 showing the position of the parts when the rec- 'ords have all been played,

Fig. 5 is a detail perspective View of the thimble and the ball-bearing lifter,

Fig. 6 is a detail of the escapement, and

Figs. 7 to 11 inclusive show various positions of the turn table and the record sup port during the removal of a played record, Fig. 7 showing the same position of the parts as in Fig. 3.

The attachment comprises means for moving the played record from the turn table to the record support, and means for raising the turn table to bring the succeeding record in the proper position for playing. The attachment is shown in connection with a phonograph 1 of ordinary construction having a turn table2 for receiving the records 3, which are placed upon the turn table in superposed relation and from which they are removed onto a table 4 arranged adjacent to the phonograph casing. T he means for lifting the reproducer arm 5 and returning it to playing position, forms the subject matter of my co-pending application, No.

109,047 filed July 13, 1916, and for this reason is not more particularly described.

The mechanism for removing the record comprises a' removing arm 6,h'aving an angular portion 7 provided with a depending pin for engaging the opening of the record, and in practice this arm will have a rubber sleeve at the record and it will be counterbalanced in such manner that in normal condltions, the pin will drop into the opening of the record. This arm is journaled upon a cam plate 8, and the arm has a laterally extending rounded cam 9 at the end remote from the angular portion. The cam plate 8 is pivoted at 10 to the phonograph casmg, and the cam 9 cooperates with a disk 11 which is driven from themotor shaft 25 thrlogugh a gear train indicated generally at The disk 11 is a cam disk and it is provided with a wrist pin 14 and a segmental cam 15 which is secured to the horizontal portion of an angular bracket 16 on the disk, in such manner that the rounded edge of the cam is adjacent to, but spaced above the disk. The edge of the cam plate remote from the angular portion 7 of the record removing arm, has a curved cam extension 17 and at i The above described mechanism operates v mechanism, moving into engagement with the record as the reproduce-r is lifted and completing the removal of the record before the reproducer is lowered. When the disk 11 is rotated, the cam member 15 rides over the cam surface 9 of the arm 8 moving this cam portion down parallel with the plane of the cam plate. In such position the pin on the angular portion 7 of the arm is lifted, and as soon as the pin 14 engages the adj acent edge of the cam plate, the record removing arm will be swung toward the record on the turn table.

The continued movement of the disk will passes oil the cam 9 and the pin on the portion 7 drops into the opening of the record. The continued movement of the pin 14 on the curved extension 17 will swing the arm in the reverse direction and into the position .in sequence with the reproducer arm control of Fig. 1, slipping the top record from off the turn table and moving it-onto the table 4.

The turn table 2 is provided with the usual central opening through which extends the pin 19, and the records 3 are mounted in superposed position on the turn table with the said sleeve being journaled on the pin 19,

and this sleeve is provided at its lower end with a head or a flange 21. The sleeve also has a rib or key 22 which engages within the slot in the hub of a gear wheel 23 which meshes with the gear wheel 24 on the shaft 25 driven by the motor indicated at 26. This gear wheel 23 is held from movement vertically by means of arms 26 extending laterally from the standard 27 secured to the top of the phonograph 1, and it will be evident that the rib 22 by its engagement with a groove of a gear wheel, will constrain the; sleeve and the turn table to turn with the gear wheel, While permitting the sleeve and the turn table to move vertically with respect to the gear wheel. The table 4 is secured to the top of the shaft 28 which is mounted to slide in bearings in a bracket supported extension 29 from the phonograph, and in a standard 30 on the said extension.

A lever 31 is pivoted intermediate its ends to a bracket 32 on the phonograph,'an d one end of the lever has a lost motion. connection with the shaft. At the opposite end the lever engages beneath the flange 21, and a bolt 33 is journaled in the said end of the lever, the bolt engaging the flange, as shown in Figs. 3 and 4. The arrangement is such that the tables 2 and 4 move together in an opposite direction and at the same rate of speed. The pivotal connection between the lever 31 and the bracket 32, is a shaft 34. This shaft 34 is provided with a gear segment 35 at the end remote from the bracket 32, and the segment meshes with a pinion 36 journaled in a bracket 37 and engaging in turn with a pinion 38 on a stub shaft 39.

An escapement wheel 40 is secured to the pinion 38, and a double escapement pawl 41 secured to a shaft 42 cooperates with the wheel.

The shaft 42 is journaled in the bracket 37 before mentioned, and at the opposite end from the pawl the shaft has a radial arm 43 which is adapted to be engaged by a cam 44 on the under face of the disk 45, which controls the reproducer lifting and returning arm. The escapement 41 is yieldingly held in normal position by means of springs 46 mounted on the bearing for the shaft 42.

In operation, at the commencement of the playing, the parts are in the position shown in Fig. 3, a series of disks being mounted upon the table in superposed position with the uppermost disk in position for engagement by the needle of the reproducer. The table 4 is at the level of the bottom of the uppermost record, so that the removing arm may slip the record from the turn table directly onto the table 4. Just at the completion of the movement of the arm 6, the cam 44 operates the escapement, the shaft 34 is moved just far enough to lower the table 4 the thickness of a record and to raise the table 2 the same distance. movement of the tables being equal to twice the thickness of a record, the table 4 is now in position to receive the topmost record, as shown in Fig. 11. Figs. 7 to 11- inclusive show the complete movement, Fig. 7 showing the parts at the commencement, Fig. 8 showing the record moving onto the table 4, Fig. 9 showing the completion of this movement, Figs. 10 and 11 showing the movement of the tables with respect to each other.

It will be understood that the table 4, which is the receiving table for the records, is counter-weighted so that it will overbalance the weight of the turn table and the superposed records. Thus whenever the escapement is released, the table 4will descend, moving up the table 2 with the records. The

removing of each record is controlled bythe return of the reproducer to commencing position, and the means for returning the reproducer to commencing position is also controlled by the movement of the reproducer. That is, when the reproducer reaches the end of the record, it controls the lifting of the reproducer needle, the returning of the reproducer to starting position, the lowering of the needle onto the record, and the removal of the record during the lifting of the needle.

I claim:

1. In combination with a phonograph, of means operated by the motor of the phonograph and controlled by the position of the needle for removing the record, said mechanism comprising an arm having an angular lug provided with a depending pin for en-, gaging the opening of the record, and countor-balanced to normally engage the said opening, a cam plate on which the arm is journaled, said arm having a laterally extending cam portion, .a cam disk normally disconnected from the motor and having a cam for engaging the cam of the removing arm to lift the pin out of engaging position, and having a pin for engaging the cam plate to swing the arm with the pin over the opening of the topmost record and to swing the arm with the topmost record away from the turn table, and means controlled by the The combined v 2. In combination with a phonograph having a vertically movable turn table for supporting a series of superposed records to be played in succession, a receiving table adjacent to the turn table, a lever pivoted between the tables and supporting and balancing the tables, the-receiving table being counter-weighted to overbalance the turn table and a series of superposed records, an escapement device in connection With the lever, means controlled by the movement of the reproducer for moving the topmost record from the turn table to the receiving table, and means operated by the reproducer for releasing the escapement before a record 4:. In combination with a phonograph havcent to the turn table, a connection between the tables for balancing the same, means controlled by the movement of the reproducer for moving the said tables, and means controlled by the movement of the reproducer for removing the records in succession from the turn table to the receiving table.

5. In combination with a phonograph having a vertically movable turn table for supporting a series of superposed records to be played in succession, a receiving table adjacent to the turn table, and a connection between the tables for balancing the same, and means controlled by the movement of the reproducer for moving the said tables.

6. In combination with a phonograph havin a vertically movable turn table, a receiving table having a balanced connection with the turn-table for constraining them to move together in opposite directions and an escapement device for operating the tables and controlled by the movement of the reproducer.

FRANK L. BARROWS.

Images