US1563572A - Sound controller for telephone receivers - Google Patents

Description

Dec. 1, 1925. 1,563,572 r M. R. HUTCHISON sozmn CONTROLLER FOR TELEPHONE RECEIVERS Filed Jan. 22, 1924 2 sheets-sheet 1 I MI 7 A TTORNE Y Dec. 1, 1925. 1,563,572

M.R.HUTCHEON SOUND CQNTROLLER FOR TELEPHONE RECEIVERS Filed Jan. 22, 1924 2 Sheets-Sheet 2 Wail/ 1415154111111!!! ATTORNEY Patented Dec. 1, 1925.

rtJN-E 'TIE l) S f T Es MILLEB REESE I-IUTCHISDN, OF"XVEST"RANGE, NEW JERSEY.

CONTROLLER FOB TELEPHONE RECEIVERS Application filedlTanuary 22, 1924/ Serial No. 687,736.

To all whom it may concern:

Be itknown that I, MLLER REEsE HUTGHI- Senna citizen of the United States, and resident of West Orange, int the county of Essex 6 and "State of New Jersey, have invented certain new and-useful Improvements in Sound GODt1'0ll6l'S'1ff01 Telephone Receivers,

of which the following isa specification.

Telephone receivers vary widely in the loudness of the "sound produced and also witlrrespect to the noisiness of the environment in which they are usedand my present invention contemplates means for closing inthe transmitter-outlet and conducting the soundthrough a suitable conduit, thus providing mean whereby the above variations can be taken care of.

\Vhere the sounds are very faint, they may be conducted through tubes terminating in ear-pieces closely fitting into the ear. Similar advantage exists where the sounds are not particularly faint but the surroundings are very noisy; also where the received sounds are loud, and the surroundingsquiet,

near or even at a considerable distance from i the receiver: v

To meet any or allsuch conditions, I provide a'simple device readily attachable to thesta-ndard telephone receiver. Preferably it is inthe:form ofa cover plate, firmly attachable so as to permit usewwith the telephonereceiver lying'on its sideor hanging I upor standingion'end;v Preferably the outer face ofthe device is finished off to form a plane stable base of 'sup 0rt.-'-,

vention may be unore fully understood from the followingdescription 1n connection wlth the accompanying drawings, in which Fig; his a :face viewof-the device with attached ear-tubes w 2 i j Fig. 2 is a section on the line 2-2, Fig. 1; "Eig. 3'is a'sectionon the line;3i3, Fig. 1; Eigs1z4: and :5 are respectivelyface-view and'side elevation of a'simpleiform of stamping that-maybe employed 'as indicated in,

the: preceding figures; 1

i Fig: 6 is a:face view corresponding to Fig; l but showing a modification;

' ..Figs."7 and8 are respectively sections 0 the lines 7-7 and 88 ,-Fig.;6;

" Fi 9 is a section like Fi 2 but showin O D 7 D ainoclification'. 1 a r, m

'In Flgsu l to 5 the device comprlses a coverember 1, preferably adie casting,

H V 4 l j 5 v.

thereto.

diaphragm.

one face of which has an annular depression 2 of approximately the same dlameter .asthe, "lace annulus 3 of the telephone receiver, outside of which depression is anannulai surface 4. At the center is a projectingboss 5, formed with a passage 6 adapted to register with the sound outlet 7 of the telephone receiver. The passage 6 extends away from the receiver far enough to clear the face thereof and then curves into the tubular portion 8 which is continued through a projection 9, extending beyond :the periphery of the cover piece 1. Preferably the back of the cover is contoured so that the-back wall 10 of passage 8 appears in relief and there is an annular base portion 11 project-- ing into the same plane as 10, so thatthe cover may be laid on its back with the receiver projecting upward at right angles Preferably the annulusll has a molded depression 12,in which may be located the name of the maker, trade-name or any other desired legend, the letters, or fig- .ures being preferably molded in the metal. so that the sounds are audible to bystanders a The boss 5 has-exteriorly thereof a sleeve 13, preferably of flexible-rubber, which projects into the sound outlet-14: of the telephone receiver, this affording a sealed coupling withtube 6. If desired, the tube 13 be provided with a bead 15 to assist insealing the joint and also to prevent the tube from being :pushed into, contact with the receiver In the form shown, the cover, 1, is secured to the receiver byrmeans of; a sheet metal 7 stampingmolded as atQOtofit the portion The above :and other features of my in- 2 of the cover and at 21 to fit the annulus 4.

/ The stampingiis centered by centralperforation 22, which fits around the outside of; the

cover b screws en 'a in erforations 26.

i Around the edges-ofjhe stamping are integral forwardly projecting arms 23, 23,w-terminating: in eyes 2 L, formedby curling the -;metal preferably outward; These arms emvbltLGG the -telephone receiver, .as shown in :Fig. 2 and are clamped agamst the perlphery thereof by springs, preferablya continuous l1QllX;25; The arms 23, have radial portions at their bases that contact withannulus 4,

therebyi increasingvspringiness and decreasing liability of permanent bends or breaks at thebaseof thearms; v7

The device even ;as above described may be applied to the receiver and the receiver held in the hand of tlie operator in the usual way, so that the outlet 27 of passage 8 may be brought nearer to or farther away from the ear, according to conditions. Preferably, however, the projection 9 is formed to receive an ordinary ear tube out-let such as is commonly used on phonographs and may include a tube 28, communicating with a metal Y 29, communicating through its two branches with tubes 30, 30, terminating in ear- pieces 31, 31 and preferably provided with an internal spring wire stiffener 32, which has a set tending to press the earpieces into place in the ears of the user.

The spring 25 is a desirable means of holding the arms 23 in clamping relation to the receiver, but if desired these arms may be contoured as at 23 Fig. 9, to fit the outside of the telephone receiver, andre-curved as at 24, to form wedge surfaces to assist in opening the spring fingers when the device is applied to the telephone receiver.

In the form shown in the Figs. (3, 7 and 8, I have provided means for more accurately centering and more positively securing the attachment to the telephone receiver. In this form rigid guiding at three points is combined with resilient clamping at three other points. The rigid guiding is afforded by the three integral forwardly projecting arms 40 having the recesses ll formed on the outside thereof, and having their inner faces 12 parallel with each other. These faces are exactly concentric with the central tubular boss 5 and they have sliding fit with the outside of the receiver so that tube 5 is accurately centered for registry with the sound outlet of the receiver. C0- operating with each of these fixed guides, and preferably opposite them, are the three movable guides 50, 50, pivoted as at 51 in ra'dially projecting ears 52, 52. These are clamping guides contoured as at 53 to fit the end of the telephone receiver and they have peripheral recesses 54 corresponding to the recesses 41 in the fixed guides. These six recesses all in the same plane receive a resilient clamping rim which may be a spring 25, similar to that of Figs. 2 and 3.

The transmitter engaging face of the cover may have a facing of felt, rubber or other non-vibratory cushioning metal.

The diameters of the passages leading to the ear. may be predetermined to suit the user. Passages of large cross-section may be used to deliver sound energy intense enough for those who are very hard of hearing, while the average user may have the passages as small as desired, so as to damp the sound wave by friction. Adjustable damping, is possible by using large tubes, the walls of which may be pinched by the user, to any desired extent.

I claim:

1. An attachment for telephone receivers, conslstlng Of a fl t disc-like member for closing the outlet of the receiver and having peripheral clamps for holding it on the receiver, a projecting tube centrally ar ranged to register with the sound outlet of the receiver, a rubber coupling on said tube having a cylindrical portion projecting into and fitting said sound outlet.

2. An attachment for telephone receivers, consisting of a flat disc-like member for closing the outlet of the receiver and having means for holding it on the receiver, a projecting tube centrally arranged to register with the sound outlet of the receiver and connected to a radial passage extending beyond the periphery of the disc, a rubber coupling on said tube having a cylindrical portion projecting into and fitting said sound outlet and provided with an internal bead engaging the outer surface of the transmitter to limit the depth of such projection.

A device for supporting a telephone receiver on the sound outlet end comprising an integral disc member having an opening in its inner face to register with the receiver outlet and communicating through a radial passage with the outer air, the outer face of the disc having a radial passage molded as a radial pipe of minimum permissible thickness and a marginal rim of approximately the same thickness as the pipe coop crating therewith to alford a plane surface of support.

4. A device adapted to serve as a stand for a telephone receiver, consisting of a disc the inner face of which covers the outlet end of the receiver and the outer face of which has a radial pipe formed as a molded projection thereon and communicating with an integral tubular boss projecting centrally from the inner face of the disc, said outer face having also distributed support pro j ections of approximately the same thickness as the projection of the radial pipe.

5. A device adapted to serve as a stand for a telephone receiver, consisting of a disc the inner face of which covers the outlet end of the receiver and the outer face of which has a radial pipe formed as a molded projection thereon and coinn'iunicating with an integral tubular boss projecting centrally from the inner face of the disc.

6. An attachment for telephones comprising a disc member, having on its inner face a circular depression the annular edge of which fits the annular molding on the end of the receiver to center the same, in combination with parallel clamping fingers fit ting the receiver peripherally and an elastic ring clamping the ends of fingers toward the axis of the receiver.

7. An attachment for telephone comprising a disc member, having on its inner face a circular depression the annular edge of which fits the annular molding on the end of the receiver to center the same, in combination with parallel clamping fingers fitting the receiver peripherally and an elastic ring clamping the ends of fingers toward the axis of the receiver, portions of said ring 5 between the fingers engaging behind the flange of the receiving cover.

8. An ear tube and means for securing it to a telephone receiver, said means comprising a disc m mber which fits against the out let end of the receiver, in combination with 10 parallel clamping fingers on the disc engaging member, fitting the receiver peripherally and an elastic ring clamping the ends of fingers toward the axis of the receiver.

, Signed at New York in the county of New 1 York and State of New York this 18th day of January, A. D. 1924.

MILLER REESE HUTCHISON.

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