US925346A

US925346A - Talking-machine.

Info

Publication number: US925346A
Application number: US39594507A
Authority: US
Inventors: Alfred Keller
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-04
Filing date: 1907-10-04
Publication date: 1909-06-15
Anticipated expiration: 1926-06-15

Description

A. KELLER.

TALKING MACHINE.

APPLIOATION FILED 0014, 1907.

Patented June 15, 1909.

3 SHEETS-SHEET 1.

wwwa/wao A. KELLER. TALKING MACHINE.

APPLICATION FILED 00T. 4, 1907. 925,346. Patented June 15,1909.

3 SHEETS-SHEET 2.

A. KELLER.

TALKING MACHINE.

APPLIATION FILED 00T. 4, 1907. 925,346. Patented June 15, 1909.

3 SHEETS-SHEET 3.

l .Maj

um r" UNITED sTATEs PATENT oEEicE.

ALFRED KELLER, OF STE. CROIX, M'VI'IZI'CRIMND, ASSIGNOR TO MICRMOD FRERES, OF STE. OROIX, SWITZERLA N D.

TALKING-MACHINE Specification of Letters Patent'.

l Patented .Tune 15,1909.

Application filed October 4, 1907. Serial No. 395,945. i

stylus arm over the record in such a manner as to cause the stylus point to register properly with the convolute or spiral groove in the record. By this means undue wear upon one side of the groove and upon the stylus point is avoided when the reproduction of sound is made.

Heretofore in machines of this 4character the groove itself has been depended upon to move thestylus point across the record, with the resulty that both the stylus point and the groove have been unnecessarily worn. By my invention this is avoided.

My invention also contemplates the further improvement in that it permits of varying the degree to which the stylus arm shall be fed, so as to vary the feed to accommodate it to the several different groove spacings. At the present time disk records are made by various concerns having different spacings between the spiral convolutions.

y a very simple construction I am enabled to at once adapt the feed mechanism to any spacing. This feed apparatus is also useful for recording machines.

In the drawings, Figure 1 is a side elevation, partly broken awa of a talking machine constructed to em ody my invention; Fig. 2 is a plan view thereof, also partly broken away; Figs. 3 and 4 are perspective views ofv details of construction Fig. 5 is a side view of a modification; and Fig. 6 is a plan view of certain details of construction shown in Fig. 5. f

Referring first to Figs. 1 to 4 inclusive, 1 is the box or casing containing the usual motor mechanism, which it is unnecessary. to describe, because any desired form of motor mechanism may be employed. 2 is the central spindleor arbor upon which the disk record 3 is mounted and by which it is rotated. 4 is the re roducer or sound-box. 5 is the stylus need e. 6 is a tubular arm carrying the reproducer, leading to a suitable bearing 7. This is so constructed that the reproducer may be moved to and fro transversely across the record. 8 is the horn extension, for intensifying the sound. All of these parts may be of any well-known construction.

ing brackets. The frictional mounting )referably comprises a split sleeve 1()EL w ich takes on the end of the arbor with sufficient snugness to cause the lever arm 9 to be swung as the arbor rotates, but which may be slipped as occasion requires. 11 is a link connecting the arm 9 with the part 6, for example, through the medium of an adjustable sliding collar 12. end of the arm 9, which affords a safe connection, the link 11 being hinged thereto. This cap 13 also ermits the parts to be detached. The collar l2 may be provided with a set-screw 14 to permit the collar to be adjusted at any desired point on the member 6, nearer to or farther away from the axis of rotation in the bearing 7. 15 is a gear-wheel mounted on arbor 10 and meshing with the worm-screw 16, driven by the motor within the case 1. Proper gearing should, of course, be provided, so that when the disk record 3 has been revolved one complete revolution, the arbor 10 will have moved and shifted (through the medium of lever 9 and link 11) the arm 6 to a sufficient extent to move the stylus point the full width of the space between adjacent convolutions in the record. Inasmuch as these convolutions vary in spacing. indifferent makes of records,'this`may,be readily cared for byshifting the position of the collar 12 on the arm 6. Another way to accomplish the" same object would be to shift the connection of link l1 on lever 9 nearer to or farther away from arbor 10. By providing a frictional connection between lever-arm 9 and arbor 10, the operator may freely lift the reproducer and swing the arm 6 to and fro, without damage to the gears or any of the associated parts.

In the modification shown in Figs. 5 and 6, 1 represents a portion of the box, as before. 16a represents a spur-gear on the motor shaft. Thismeshes with the arbor 10a. This arbor 10EL is provided with a worm 17 meshing with gear 18. 20 is a shaft driven by` gear 18,- carrying the adjustable friction disks 21-21. Between these disks is a friction-plate 22 having a 9 is a lever frictionally mounted f on an arbor 10, which has suitable support- 13 is a cap for the a spur-gear 15a on means for supporting a reproducer, including slotted oE-set arm 23. 24 is a pin passing l through the slot in the arm 23 and connected to the stylus arm 6a. As the motor shaft revolves, itis obvious that through the several connections aforesaid, arm 6a will be moved so as to ive the proper feed to the stylus point. hen the operator desires to shift the stylus oint, this may be done by lifting the repro ucer and swinging it at will.

In the form shown in Figs. 3 and 4, the reproducer 4a is transversely hinged at the point 25 so that it may be lifted.

1. In an apparatus of the character described, means for rotating a disk record, means for supporting a reproducer, including a swinging arm, means of connection between the motor and the swinging arm for imparting a swinging feeding movement to the latter as the disk-carrying means is revolved and means to permit the return of the arm without disconnecting the same from the feeding means.

2. In an apparatusof the character described, means for rotating a disk record, means for supporting a reproducer, including a swinging arm, means of connection between the motor and the swinging arm for imparting a swinging feeding movement to the'latter as the disk-carrying means is revolved, and means for varying the degree of feed relatively to the diameter of the disk record used. i

3. In an` apparatus of the character described, means for rotating a diskrecord,

a swinging arm, means of connection between the motor and the swinging arm for imparting a swinging movement to the latter as the disk-carrying means is revolved, and a friction clutch connection between the swinging arm of said means.

4. In a talking machine, a support for a disk record, means for rotating said support, a reproducer,'an, arm, a hinged bearing at one end of said arm, means for moving said arm to cause the free end thereof to traverse said record, said means being operativel connected to the means for rotating the dis record and means to permit the return of the arm without disconnecting the same from the means for causing the free end thereof to traverse said record.

5. In a talking machine, a sup ort for a disk record, means for rotating said support, a reproducer, anarm, a hin ged. bearing at one end of said arm, means'for moving said arm to cause the free end thereof to traverse said record, said means being operatively connected to the means for rotating the disk record, and including a friction cIutch connection between the arm of said means.

6. In a talking machine, a support for a disk record, means for rotating said support, a reproducer, an arm, a hinged bearing atone end of said arm, means for moving said arm to cause the free end thereof to traverse said record, said means being operatively connected to the means for rotating the disk record, including a lever-arm, a lshaft support therefor and frictional connection between the two, and a link leading from said lever* arm to said swinging arm.

7. VIna talking machine, means for rotating a disk record, a hinged arm for carryin a reproducer, a reproducer supported by sai arm away from the hinged portion thereof, a disk record having a spiral groove therein, a stylus point carried by the reproducer, and feeding means operatively connected and driven from the same source of ower that drives the disk record to cause said swinging arm to move at a speed suiiicient to cause the stylus point to follow the'spiral groove in the record and a friction clutch connection between the lever and feeding means.

8. In a talking machine, a disk, a stylus, a hinged carrying-arm for said stylus, means for rotating the disk, and means for swinging the stylus arm, driven from the same source of )ower as employed for rotating the disk and means allowing the return of the arm without disconnecting the same from the driving means. y

9. In a talking machine, a disk, a stylus, a hinged carrying-arm for said stylus, means for rotating the disk, means for swinging the stylus arm, driven from the same source of power as employed for rotating the disk, and

means for varying the degree to which said.

stylus arm is swung relatively to the diameter of the disk.

ALFRED KELLER. Witnesses:

L. H. MUNIER, FRANCIS B. KEENE.