US1084570A - Clarifying attachment for talking-machines. - Google Patents

Description

W. J. BURCHETT. (f-LARUFYING ATTACHMENT FOB. TALKING MACHINES.

APPLICATION FILED MAY 12, 1913,

1,084,570} Patented Jan.13 ,l 914.

(lllllllrl s ATEs PATENT oF IoE.

WALTER J. BUROHETT, OF EAST ORANGE, NEW JERSEY, ASSIGNOB, BY MESNE AS SIGN- MEETS, TO THE RASTERPHONE CORPORATION, A CORPORATION OF NEW YORK.

CLhRIFYING ATTACHMENT FOR TALKING-MACHINES.

v Specification of Letters Patent. Application filed May 12, 1913. Serial No. 767,159.

Patented Jan. 13, 1914.

To aZZ whom it may concern:

Be it known that I, WALTER J. Bunonn'rr, a citizenof the United States, residing at East Orange, county of Essex, and State of- New Jersey, have invented certain new and useful Improvements in Clarifying Attachments for Talking-Machines, of which the following is a specification.

This invention relates to clarifying "attachments for talking machines, and constitutes a further improvement on the general type of apparatus illustrated in the pending application of Mat-thew B. Claus sen, Serial Number 779,004, renewed July My object is the provision of a simple, inexpensive and diirable attachment which can be quickly and easil applied to or removed from the repr ucer of a talking machine, particularly one of the disk type,'

which will increase the volume of sound, clarify the tone, and enable a needle of small diameter to be used in sound reproduction,

thereby increasing the life of the records,

735 and i accomplish these objects by substituting a less rigid connection between the needle of the standard talking machine reproducer, and the thin, freely vibrating sound amplifying body or disk of the said Glaussen application than is employed in the specific form of construction illustrated in said Glaussen application, and supple- "menting the engagement between needle and disk by a second, elastic connect-ion between other parts of the reproducer and the disk,

whereby the disk is held against the needle with sufficient firmness to absorb the vibrations thereof when the reproducer is in operation, but may yet be easily removed from 0 pontact with the needle, (when the latter is to removed from the reproducer), without entirely disconnecting the disk from the reproducer as a whole.

lin the accompanying drawings and following description, I have shown a form of the invention illustrating its mode of operation and which carries out the foregoing ob jects, but such disclosure is to be considered as illustrative, rather than restrictive, of the scope of the invention and-the invention is susceptible of modification without departing from the spirit and scope thereof.

In the accompanying drawings: Figure 1 is a perspective view showing the invention applied to an ordinary talking machine reproducer and disk record; Fig. 2, a side elevation thereof; Fig. 3, an enlarged detail, partly in section, showing the. cotiperation of thedevice with the needle; Fig. 4, a detail perspective of the attachment alone; Fig. 5, a view looking toward the lower face and Fig. 6,.detail plan views of other shapes of thin freely vibrating sheet or disk that may be used.

Referring to Figs. 1 and 2, 1 represents the turntable of the talking machine and 2 of the thinfreely vibrating sheet or disk; 1

a disk record of usual form and construction, 3 being the usual swinging arm having the neck 4 which is swiveled at 5. The reproducer, which is of the usual form, is

shown at 6.

The reproducer has a diaphragm 7, an arm 8, a rocker 9, a needle holder 10 and a removable needle 11 held in the holder 10 by thumb-screw 12.

The foregoing parts are old and well known, operating in the usual manner.

My clarifying attachment appears alone in Fig. {1: and applied to the reproducer 6 in Figs. 1 and 2, the mode of its cooperation with the needle 11 appearing more clearly in Fig. 3, where the parts are generally exaggerated. c

' An arc-shaped yoke 13 of resilient material is of a size adapting it to be snapped onto the periphery of the reproducer 6, there being provided hook-shaped retainers 144 t which engage the knurled edge 6 of the reproducer, these retainers holding the yoke 13 in position and at the sometime having oifset or angularly arranged ends 15.

The specific form of yoke above described is adapted to coiiperate with one standard justment to be obtained. The yok 13 has in form of sound box. Slight variations in de- I tails would be desirable to enable it to cooperate conveniently with other standard forms of reproducen.

The thin, freely vibrating sheet of hard,

elastic material 16 may be in the form of a cular disk such as shown in Figs. 1 to 5,

or, it may assume different forms such as the winged or lobe-form constructions shown, respectively, at 17, 18, 1!) and 20, Fig. (5.

A thin, freely vibrating sheet of hard, astic material of any form adapted to coland clarity all vibrations of sound 'cfinscd by the engagement of the needle with tlie ilisk record. will serve the purpose and I do not limit myself to a clarifying sheet or disk of any particular form. The sheet or disk may be of mica, celluloid, or other relatively thin hard, elastic and flexible material of the proper consistency. I do not limit myself to any particular material in the construction of this element of my improved combination.

The disk 16 carries, preferably substantially centrally thereof. a hub 21 which is provided with an opening 22 which preferably tapers from its upper end to at or about the point 21 and then tapers more abruptly to where it opens out at 25 through the lower face of the hub. The lower tapered part 25 of the opening is of a size adapting it to fit against the tapered point 26 of the needle 11', the tip of the latter being exposed and free to engage the grooves on the record disk 2. The. upper part 22 of the opening being somewhat larger than the needle, permits the entire sheet or disk 16 to pivot, in a rocking manner, on the needle elv point 26 and the said disk may, therefore, tilt, pivot or rock within limits in all directions in relation to the needle 11. This construction permits the disk 16 to automatically and instantaneously accommodate itself to all movements of the needle caused by the engagement of the latter with the record disk 2 and to maintain its relation to the face of the disk 2 which is, preferably, a parallel relation thereto, as shown in Fig. 2, but may be other than parallel at times. At

the same. time the hub 21, and disk 16, are

given a sufiiciently rigid connection to the needle through the wedgelike engagement of the tapered needle point with the tapered recess 25, to insure the disk taking up all the vibrations of the needle point. The hub 21 may be connected to the disk 16 in different ways. I have shown the hub as provided with a circular flange 27 between which and the disk 16 is located an annulus or collar 28 having cars 29 aiid 30. The hub, annulus and disk may be cemented or otherwise secured together. Preferablfi the head snugly fits the opening in the disk, through which it passes. Light coil springs 31 and 32 are engaged with the ears 29 and 30 and with the en s 15 of yoke 13, said springs being under tension and consequently, drawing the hub 21 against the point 26 of the needle so that the disk 16 is always yieldingly maintained in a light yet firm, engagement. with the any direction within limits.

inseam The modified sheets or disks shown in Fig. 6, have a hub construction 21 and an annulus 28 and ears 29, 30, the same as shown and described in connection with the disk 16.

\Vhcn in use. the attachment is bodily carried by the roproducer and moves with it and the needle. The loosencss of engagement of the retainers 11 with the knurled rim (3 permits either a manual or an automatic concentric sliding of the yoke 13, thus enabling the device to be readily applied to the reproducer, adjusted thereon at any time or to automatically adjust itself under the tension of the springs 31 and 32 according to the operation of the reproducer and its needle. On raising the reproducer and its neck 4 1n the usual manner. disk 16 can be removed from the needle 11 and a new needle substituted without having to remove yoke 13 from the reproducer.

During the removal of a worn needle and the insertion of a new one, the disk 16 is pulled up to one side of the stylus or needle holder by the springs and does not interfere with the operation of changing needles. When the new needle is in position'the disk is pulled down into position and the perforated hub is snapped into position over the point of the needle. The springs wedge the hub tightly onto the tapering needle end and the whole structure, reproduccr and attachment, becomes a resonant, freely vibrating unit which takes up every vibration of the needle point whether horizontal or vertical, and whether body vibrations or molecular vibratio s.

Having thus described my inventiomwhat I claim as new and desire to secure by Let; ters Patent. is

1. The combination with the reproducer ot a talking machine having the usual sound box and stylus, of a thin sheet of hard, elastic material held flexibly about the extreme point of the stylus.

2. The combination with the reproducer of a talking machine having a stylus with a tapering point, of a. thin, freely vibrating disk provided with a tapering perforation adapted to tit. onto the stylus point, and means for holding the two in engagement.

3. The combination with the reproducer of a talking machine having a. stylus with a tapering" point, of a. thin freely vibrating disk provided with a. tapering perforation adapted to fit onto the stylus point, andelastic means for holding the two in engagement.

4. The combination with the rcproducer of slylus. of a thin freely vibrating sheet of hard elastic material, and means for elastically holding the same. in removable en- I gum-merit with the stylus. needle and is free to rock on the point 526 in T fier disk having a resilient connection therewith whereby said clarifier disk may yield or be moved from its normal position.

of a talking machine reproducer, of a clarifier 6L The combination with the needle disk having a rocking engagement with said needle. v

7. Thecombination with the needle of a talking machine reproducer, of a clarifier disk having a rocking engagement with said needle and elastic means for maintaining said engagement.

8. The combination witlithe reproducer of a talking machine having the usual stylus of a clarifying disk having a rocking engagement with the stylus, and a spring connection'extending from the body of the reproducer to the disk near the point of engagement. Q

9. The combination with the re'producer of I a talking machine includingthe usual needle,

of a clarifier disk movably engaged with said i needle, an attaching device for engaging the device.

'11. An attachment for talking machines comprising an attaching device, afreely vibrating 'clarifier disk separate from said attaching device, and connections between the said clarifier disk and the attaching device. I

12. An attachment for talking machines comprising in combination an attaching de vice, a freely vibrating clarifier disk, and

spring connections between said clarifier.

disk and said attaching device.

13. An attachment for talking machines,

comprisin a yoke, hook retainers thereon, a sheet of e ast1 0 material serving as a clarifier having a needle hole, and springs con I the saidsheet of elastic material to arts of the yoke.

nectin the en 14. T e combination vlth the reproducer needle of a talln'ng'machine, of a vibratory disk having an opening through which said needle loosely passes.

15. The combination with the reproducer needle of a talking machine of a vibratory disk having an enlarged tapered qpeping receiving the needle and oint thereof, said opening permitting the disk. to move inrela.-' tion to said. needle without detachment.

16. The combination withthe reproducer of a talking machine incladingthe usual needle, of a vibratory disk having an open 'ing through which the needle passes and whose walls loosely engage the needle, and means connecting the. diskto the reproducer. 17. The combination with the reproducer of a talking machine'in'cluding the usual needle, of a vibratory disk having an opening through which the needle passes-and whose walls engage the needle, a detachable andslidable yoke clasping the reproducer, and springs connecting the disk on opposite sides of the needle to the end parts of the yoke.

In testimony whereof, I hereunto afiix my signature in presence of two witnesses.

WALTER anunoflnrr Witnesses:

HALooLM "Ennis, .N HAN W. Prawns; Jr.

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