US1226979A - Repeater for talking-machines. - Google Patents

Description

W. L. LIGHTFOOT REPEA IEB FORGTALKING MCHiNES,. APPLICATIHON FILED APR.15. I916;

Patented May '22, 1917.

'lllllllllll Ian WITNESSES 1 3.

A TTORNEYS" WALLACE Lucwsfmenrr'oor, or BROOKLYN, NEW YORK.

Specification of Letters Z E'atent. I

:anrmmnn ron TALKING-MACHINES.

' Patented May 22, 191a.

Application filed April 15, 1916. Serial No. 91,322.

To all whom it may-concern:

Be it known that I, WALLA0E Looms Lren'rroor, a citizen of the United States, and a residentof the city of New York,

borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Repeater for Talking- Machines, of which the following is a full,

clear, and exact description.

Myinvention relates to means for automatically repeating a sound record on a talking machine. An object of the invention is to provide a simple, inexpensive, and eflicielpt icontrivance which can be attached to a ctor talking machine without anyv change or displacement of any part of the machine. A further object of the invention is to provide a device of the class described which can be easily and quickly put into operative or into inoperative position, and which, when secured to the talkordinary playing of records.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construct-ion, combination and arrangement of parts as herein fully described, illustrated and claimed. In the accompanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in both views.

Figure 1 is a plan view of a talking machine provided with an embodiment of my invention;

Fig. 2 is an elevation of my repeating mechanism showing the same in operative position at the moment when the sound box is shifted from the centralpart of the record to the margin thereof to repeat the rec- 0rd; and

Fig. 3 is a diagram showing the reaction of force of gravityacting on the recorder with the goose neck, which causes the sound arm to swing across the record.

Referring to the drawings, 3 is a bracketsecured to the top 4 of a talking machine,

, preferably by the'same screw which secures an arm extension 7 free to swing to and from a record 10. the swinging toward the record being limited by the lips 8 provided at the hinge of the arm 6, whereby the downwardly extending portion 9 of the arm extension 7 is maintained clear of the record 10 which is to be repeated.

The downward extension 9 has an end groove 11 which is to engage a cam 12 mounted on the record and secured to the drivingmhaft 13 of the machine by any suitable means. The lower edge of the cam may have a felt base to obtain better friction between the record and the cam, where by the rotation of the cam with the record is insured. As the reproducer l6 approaches the center, the sound arm 15 engages the rider 9 is in the path of the cam 12, as

" shown in dotted lines in Fig. l. The cam engaging the groove causes the arm extenlng machine, in no waymterferes with the gages the cam it forms an inclined plane for the goose neck and causes the arm 15 to swing on its pivot toward the margin of the record. is limited by a bufi'er 19 which is adapted to come in contact with' the union 18' of the sound arm. The buffer 19 consists of a yielding plunger .carried by an arm 20 secured to the 'bracket 3, preferably so that the same may be swung into operative or into inoperative position. I

VVhen the rider 9 leaves the cam 12 the sound box 16 is restored toits normal position; and to bring the articulated arm to its normal position, a resilient member 21 is provided, one end of which'is' secured to the arm 6 and the other to the bracket 6.

The movement of the arm The displacement of the arm G'under the' action of the spring 21 is limited by a stop 22 provided on the bracket? The length of thecam l2-is such that the rising and shifting. of the needle on the reproducer takes place within one-third of a revolution of the record, It will be notedthat when the rider 9 leaves the" cam there is little Weight upon the arm extension7, and,

consequently, there is no undue strain on as rea ers any part of the mechanism. In Fig. 2 the dotted lines show the movement of the goose neck after it has been raised to the starting point.

The raising of the gravitationally operablerecorder 16 by the arm extension 7 decomposes the force of gravity W into two oomponents,(-l acting at right angles to the inclined plane formed by the arm extension 7, and P acting parallel to the plane.

until the rider of the arm extension leaves the cam, when the recorder is allowed to engage the disk.

It the repeating mechanism is not to be used, the cam 12 is removed from the shaft 13 and the arm extension 7 is folded over the arm 6. The buffer can also be shifted to the inoperative position.

While I have described the principle of operation, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are with in the scope of theappended claims.

I claim:

l. The combination. with a talking ma.- chine having a revoluble record, a swinging sound arm movable in a plane parallel with the record, a goose neck swinging in the arm to and from the record, a reproducer carried by the goose neck to engage the record,of a repeating device comprising an arm mounted to swing in a plane parallel to the record, an arm extension adapted to be disposed below the goose neck and hinged to the arm to swing to and, item the record, a rider carried by the amt cam near the central. part of the record mounted to rotate with. the record and adapted to engage the rider, said arm extension and arm hav ing means limiting the swinging movement of the arm extension toward the record, an upward extension from said arm extension adapted to be engaged by the sound arm when the sound arm moves towardthe cen ter of the record, whereby the rider 1s n bought into the path or the cam, the engagement of the cam with the rider raising the arm extension On ltS lungs from the record, whereby the goose neck is swung from the record, the inclination of said arm extension causing the sound arm to swing; toward the margin of the record, wherel'iy the goose neck is allowed to swing toward the record, brlngmg the reproducer into en gagement therewith at the margin, means for stopping the sound arm at the margin, and means for restoring the arm of the re.- peating d vice to its normal position 2. The combination with a talking machinehaving a ievoluhle record, sound arm mounted to swing in a plane parallel with the record, a gravitationally operable goose neck associated with the sound arm, a reproducer carried by the goose neck to engage the rccord,of a repeater mechanism comprising a bracket, an arm pivotally mounted on said bracket to swing in a plane parallel with the record, a gravitationally-operable arm extension carried by said arm and adapted to be disposed below the goose neck, a rider extending from said arm extension, a cam mounted to participate in the movement oi the record and adapted to engage the rider, said arm ontension having means adapted to be engaged by the sound arm when said sound. arm is moved toward the center of the record, whereby the rider is broughtinto the path of the cam, the engagement of the cam with the rider inclining the arm extension toward the margin of the record, whereby the goose neck is caused to swing from the record thereby disengaging the reproducer from the record, the inclination of the arm. extension causing the sound arm to sw to the margin, a butler for engaging the arm at the margin, whereby said arm is stopped a predetermined position. to bring the record carried by the goose neck into engagement with. the record at a predetermined place, and resilient mean.- restoring the arm of the repeating device to its normal position,

In combination. with a talking ma chine having a revoluble disk record, a sound arm movable across the record, and a gravitationally-operable reprodcccr car-- ricd by, the sound arm,- associated with the record and adapted to participate in the rotary movement of the record, an articulated arm mounted toe across the record and having the articulated portion disposed under the eprc means on. said arm lying in the pi travel of the sound arm whereby said t. arculeted arm is moved into th path of the cam, said cam adapted to raise the articw lated portion of the arm whereby the reproducer is raised from the disk, the raised an ticulated portion of the arm being adapted to present an inclined plane which causes the force of gravity acting upon the reproducer to swing the sound arm to margin of the disk, and a butter for ping the sound arm at a predetermi. oil positi'on.

cam detachably by th rscsrd, 111 a lane pmalamine in a plane to. he

1 arm having sf travel 61". fihs said articulwimd whereby "said- 0 engage the raproducer 1 sax-15a mmz'gixz talking mimhine 2 sound the samad. m:-

, sail C 1 a S erabie wing 16 cam.

move tcward the and. art

mgin

Jon: the record 2m

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