US1421568A - Apparatus for resetting sound reproducers - Google Patents

Description

J. J. RISER. APPARATUS FOR RESETTING souNn REPRODUCERS.

APPLICATION FILED SEPT- 21, 192i.

* Patented July 4, 1922.

J. J. RISER. APPARATUS FOR RESETTING SOUND REPRODUCERS.

A APPLICATION FILED SEPT-21,1921

Patented July 4, 1922.

4 SHEETS-SHEET 2.

riser;

1. 1. RISER. APPARATUS FOR RESEITING SOUND REPRUDUCERS.

APPLICATION-FILED SEPT-21,1921.

1,421,568. Patented July 4, 1922.

' 4 SHEETS-SHEET a.

I. J. RISER.

APPARATUS FOR RESETTING SOUND REPRODUCERS.

APPUCATION FILED SEPT-21,1921.-

Patented July 4, 1922.

4 SHEETS-SHEET 4.

. m a a JACOB J. RISER, OF SHELBYVILLE, INDIANA.

APPARATUS FQR RESETTING SOUND REPRODUCEBS.

Application filed September 21, 1921.

T all whom it may concern:

Be it known that I, JACOB J. Risnn, a citizen of the United States, residing at Shelbyville, in the county of Shelby and State of Indiana, have invented certain new and useful Improvements in Apparatus for Resetting Sound Reproducers, of which the following .is a specification.

The present invention relates to mechanism for automatically repeating the-repro duction from the record of a sound repro ducing apparatus, and the object is to provide a relatively simple structure which can be readily placed upon and will properly operate the usualmechanism of an apparatus of the above character.

In the accompanying drawings Figure 1 is a plan view of one well known type of reproducing apparatus, showing the novel mechanism in place. I

Figure 2 is a sectional view on the line 2 of Figure 1,

Figure 3'is aplan view of thereproducer return mechanism,

Figure 4 is a detail sectional line 4'4 of Figure 3,

Figure 5 is a cross sectional View taken substantially on the line 5-5 of Figure 3,

Figure 6 is an end elevation of the structure shown in Figure 3, a

Figure 7 is a side elevation,

FigureS is a view in elevation of the stop abutment,

Figure 9 is a perspective view somewhat diagrammatic in its character of the operating mechanism, a

Figure 10 is a plan view of a slightly mod-ified form of construction.

In the structure illustrated in Figures 1-9 inclusive, a suitable casing 11 is employed, onwhich' is jourualed the usual turntable 12 for supporting a disc record. as 13. The turntable is mounted on a drive shaft 14 operated in any suitable manner. Asw-inging reproducer arm 15 is mounted on the casing 11 atone side of the turntable and overhangs the same, being provided with the usual reproducer 16 that traverses the record.

view on the In the present embodiment the sound box 16 is rotatably journaled at 17 on the arm 15. The structure, as thus far disclosed, is well known.

In the present embodiment the box 16 is preferably supported by'a hook 18 that overhangs the neck 17 and is engaged in a socket Specification of Letters Patent.

Patented July 4, 1922..

Serial No. 502,198.

19 on the upright portion of the arm 15, the mounting being such that the needle carried by the box 16 can engage the record in the usual manner. The hook 18 has sufiicient vertical play so that when it is elevated, it will raise the sound box 16 and disengage the needle from the record, thereby permitting the arm 15 to swing freely.

Mounted in the top of the casing 11 is a supporting frame, preferably comprising a base plate 20 having a vertical wall 21. An upright carrier arm 22 is guided in atransverse slot 23 in the base plate 20 and has at its lower end a pivot 24 vertically slidable in-a slot 25 formed in the upright wall 21. Mounted on the upper end of the arm is a yoke 26, the mounting being'obtained by means of a set screw 27 engaged with the yoke 26 and passing through a vertical slot 28 formed in the arm 22. The yoke can thus be vertically adjusted and can also be tilted to different positions.

A shaft 29 is journaled in the vertical wall 21 and is provided with acrank plate 30 having a crank pin 31 journaled in the carrier arm 22 above the pivot 24. This crank shaft 29 is laterally movable, and is provided at its inner or rear end with a gear wheel32 adapted to be moved. into and out of mesh with a gear 33 fixed to thedrive shaft 14.

The meansafoi' shifting the'shaft 29 consists of a yoke 34 mounted on a rock shaft 35 that is journaled beneath thebase plate 20, said shaft havingv acoiled spring. 36 around it and secured at one end .to it, the spring tending to turn the shaft so as to swing the gear 32 into mesh with the gear Thc front end of the rock shaft 35 has a. crank 37 that rests on a controlling lever38 pivoted, as shown at 39, to the'vertical plate 21, and this controlling lever 38 also has a pin 40 passing through a slot 41 in the vertical wall plate 21. The pin 40 rests upon a latch 42, one end of which is adapted to engage in a notch 43 formed in one side of the carrier arm 28, andthis latch has its other end mounted on a swinging actuating device 44 pivoted, as shown at 45., to the plate 21. A spring 46. engaged with the-lever 44, tends to normally urge it and the latch 42 toward the carrier arm 22, and said carrier arm is urged upwardly by a spring 47 connected to its pivot 24.

Mounted on; the case 11 at one side of the turntable is an indicator quadrant 48, to which is pivoted a pointer 49 having an actuating knob 50. Pivoted to this pointer is a link 51 that is also pivoted to a trip arm 52 journaled between its ends, as shown at 53 on the upper end of the actuating lever 44 above the base plate 20. The outer end of this trip arm is adapted to be engaged by a lug 54 suitably fixed to the reproducer arm 15 when the sound box and needle approaches the inner or terminal portion of the record. There is also mounted at one side of the quadrant a guide bracket 55 in which is slidably mounted the shank 56 of an upstanding stop or abutment arm 57. Said arm is thus adjustable to different positions and can be held where desired by a suitable clamp 58.

Assuming the parts as illustrated in the drawings, and a record is being played, the reproducer arm 15 will swing transversely until the lug 54 strikes the trip 52. This will cause the actuating lever 44 to be moved away from the carrier arm 22 and as a consequence the latch 42 will be disengaged from the notch 43. When this occurs the spring 47 will elevate the arm 22 until the yoke 26 is engaged with the hook 18. At the same time the latch 42 will drop and as the pin 40 of the controller lever 38 rests thereupon, said controller lever will drop. This will permit the rock shaft 35 to turn and the yoke 34 will consequently swing the shaft 29 and carry the gear 32 into mesh with the gear 33. The crank 3031 will therefore be rotated, causing the arm 22 to be carried upwardly and to the left, thus lifting the reproducer from the record and the yoke also operating against the arm will swing it outwardly thereby returning the reproducer to the outer margin of said record. The continued rotation will cause the carrier arm and yoke to move downwardly, thus depositing the reproducer needle on the record at the beginning of the same and the'action Will continue until the upward movement of the carrier arm by the crank 30 engages the latch 42, it being understood that this latch will return to its original position by reason of its release from the reproducer arm. The parts will therefore be brought to their initial position and the operation will be again repeated at the conclusion of the reproduction. By shifting the pointer 49 it will be obvious that the trip lever 52 will be turned upon the operating lever 53 so that the mechanism can be adjusted forrecords of different diameters and the stop or abutment 57 may be employed to properly position the reproducer irrespective of the amount of swing of the carrier yoke 26.

A slightly different form of construction is illustrated in Figure 10, wherein the reproducer arm is jointed and is designated 15 The remainder of the mechanism is the same, with the exception that the adj ustment of the trip designated 52 is secured by means of a lever 49* fulcrumed between its ends, as illustrated at 50 and having a link connection 51" with the trip 52 From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

1. The combination with a record holder and a reproducer arm that moves thereover, of a swinging support for moving the reproducer arm over the record holder, said support lnving a shiftable pivot axis, and means for effecting a shifting movement of the support and its pivot axis to engage the support with the arm and for effecting a swinging movement of the arm to move said arm over the support.

2. The combination with a record holder and a reproducer arm that traverses the same, of a swinging carrier arm having a movable pivot axis, a crank engaged with the arm to longitudinally and laterally shift the same, and means for periodically rotating the crank.

3. The combination with a record holder and a reproducer arm that traverses the same, of a swinging carrier arm having a movable pivot aXis, a crank engaged with the arm to longitudinally and laterally shift the same, a drive shaft for the record holder, and means for periodically rotating the crank from the drive shaft.

4. The combination with a record supporting turntable and a drive shaft there for provided with a gear, of a reproducer supporting arm, a crank shaft having a gear movable into and out of mesh with the drive shaft gear, a longitudinally movable and laterally swinging carrier arm for the reproducer supporting arm connected to the crank of the crank shaft, and means controlled by the reproducer supporting arm for causing the periodic engagement between the gears. V

5. The combination with a record supporting turntable and a drive shaft there for provided with a gear, of a reproducer supporting arm, a crank shaft having a to the crank of the cran shaft, a gear shifting rock shaft, and means controlled by the reproducer supporting arm for controlling the operation of the rock shaft.

6. The combination with a record supporting turntable, and a drive shaft therefor having a gear, a swinging reproducer supporting arm that traverses the turntable, an upstanding vertically moving and laterally swinging carrier arm adapted to engage the reproducer arm and swing the same, a shaft having a crank engaged with the carrier arm and having a gear, said shaft being laterally shiftable to carry the gear thereof into and out of mesh with the drive shaft gear, a rock shaft having an arm that engages the arm operating shaft to shift it, a controller for the rock shaft, and a latch operated by the reproducer arm and engaging with the controller and the carrier arm.

7. The combination with a casing, a turntable and a swinging reproducer arm, of

mechanism for automatically lifting and swinging the arm. a controlling device for the mechanism, including a latch, a lever for controlling the same, an adjustable trip, fulcrumed on the end of said lever, an adjusting lever fulcrumed on the frame, and a link connection between the lever and trip.

8. The combination with a casing, a turntable and a swinging reproducer arm, of mechanism for automatically lifting and swinging the arm, a latch for holding the mechanism, an operating device for the latch, a trip pivoted on the operating device, and means for swinging the trip on the operating device and holding it in adjusted position.

In testimony whereof, I afiix my signature in the presence of two Witnesses.

JACOB J. RISER. Witnesses EMERSON J. BRUNNER, A. E. LIsHER.

Images