US2527988A - Mouthpiece for musical instruments - Google Patents

Description

Oct. 31, 1950 DILLON 2,527,988

MOUTHPIECE FOR MUSICAL INSTRUMENTS Filed March 25, 1948.

34 F294 F y- 2 .6

Suventor [dwardM Dillon attorneys Patented Oct. 31, 1950 UNITED STATES TENT oFFlcr.

MOUTHPIECE FOR MUSICAL INSTRUlVIENTS Edward M. Dillon, Wheeling,W. Va. Application March 25, 1948, Serial No. 17,035

7 2 Claims. 1

This invention relates to musical instruments and, in particular, to a mouthpiece for wind instruments ofthe single-reed type, such as saxophones, clarinets, or the like, having an improved adjustable friction grip for engaging the neck or upper end of the body of the instrument. I

Saxophones and clarinets as heretofore made have been provided with a neck having a cork ring or sleeve over which the mouth-piece of the instrument is slipped, making an adjustable separable friction coupling therewith. The adjustability thus afforded permits tuning the instrument to the proper pitch, while separability is necessary for cleaning and protection of the instrument in its case. Considerable difiiculty results, however, from. the use of cork for the friction ring and sleeve. In the first place, cork is absorbent and thus collects moisture of condensation resulting in a generally unsanitary condition of the mouthpiece. Secondly, the cork is subject to shrinkage and hardening with age, so that the fit of the mouthpiece on the neck of the instrument becomes loose, after a time. This may produce an accidental change of pitch while the instrument is being played which is, of coursse, ruinous to any musical performance. Finally, the cork lacks durability as evidenced by the fact that the friction ring of a mouthpiece ordinarily has to be replaced after about four or five months use. This requires'the services of a skilled instrument repairman.

I have invented a novel mouthpiece having an improved frictiongrip or joint seal whereby all the aforementioned disadvantages of the prior construction are eliminated. In a preferred embodiment, I provide a friction sleeve, separatefrom the mouthpiece, composed of synthetic material having characteristics of softness and flexibility which adapt it to make a tight fit with the instrument neck. The sleeve extends within the body of the .mouthpiece and is adapted to receive the neck of the instrument. I also provide means on the mouthpiece for contracting 2 companying drawings illustrating the present preferred embodiment briefly described above. In the drawings:

Fig. l is a side elevation of my improved mouth piece; a s Fig. 2 is a central longitudinal section therethrough taken on a plane normal to that of the vibrating reed;

Figs. 3 through 6 are axial sections of the sleeve, bushing, collet and thimble, respectively; and

Fig. '7 is an elevation of an instrument neck showing an adapter thereon in section.

Referring now in detail to the drawings, and for the present to Fig. 1, the illustrated embodiment of the invention comprises a mouthpiece having a body l0 adapted to be secured adjustably to the end of the neck ll of a wind instru ment such as a saxophone, by a frictional gripping means indicatedgenerally at I2. The body is molded from hard rubber or the like as usual, and is largely of conventional shape, but has the end thereof adjacent the neckspecially adapted for cooperation with the gripping means I2. It has the usual sloping tubular intermediate por tion Illa terminating in a sloping upper lip-engaging surface l3 and a plane surface M on the bottom adapted to receive the reed l5, which 'is held in place by a clamping ring l6 having wing screws II.

Referring now more particularly to Figs; 2 through '7, the frictional gripping means l2 includes a sleeve i8 having a flange or collar l9, adapted to fit in the instrument end of the body it of the mouthpiece which is threaded internally. The sleeve has an internal diameter such as to accommodate the instrument neck II with or without an adapter 20. The neck I l as shown corresponds to that of a standard saxophone as now made, and when the improved mouthpiece is applied to such instrument the adapter is necessary, but it willbeunderstood that the neck may be originally made of such size as to fit snugly in the sleeve without any adapter. The adapter is merely for the purpose of permitting use of the invention on instruments already existing and may replace the present corksleeve."

The sleeve 58 is a cylindrical tube of synthetic material having characteristics of softness and flexibility rendering it suitable for use as a compressible friction member or joint packing. The material should be moisture-repellent,-non-absorbent, stable and durable. The class of materials known-as synthetic resins include several suitable examples, one of which is polyethylene,

Others are vinyl resins, or even synthetic rubber such as thiokol and butadiene copolymers. These materials are inexpensive, easily shaped as by molding, and sufiiciently soft and yielding at normal temperatures to be slightly compressible while maintaining their original dimensions within narrow limits for long periods, despite changes in atmospheric conditions. In addition they are waterproof and quite durable for the use herein disclosed. Polyethylene, however, is most suitable because it has a wax-like surface characteristic, is tough, adequately pliable and elastic.

A bushing 2| has a tapered bore therethrough and has one end 22 reduced'and threaded externally so that it may be screwed into the body ID. The other end is also threaded as at 23. The bushing has a shoulder 2 intermediate its ends adapted to abut against the instrument end of the body II].

A collet 25 adapted to fit on the sleeve l8 has its exterior tapered to conform with the interior of the bushing. Slots 26 extend longitudinally of the collet, starting alternately from opposite ends thereof, to permit it to be contracted slightly.

A circumferential groove 21 is formed at the thicker end of the collet leaving a bead or tongue 28 for a purpose which will appear shortly. As shown in Fig. 2, when the gripping means i2 is assembled, the collet 25 is substantially coterminous with the bushing 2|.

A thimble or ferrule 29 is threaded internally "so as to screw on the end 23 of bushing 2i. It has an inturned flange 30 at one end in which a groove 3! is formed. The thimble serves when the collet. For this purpose, the thimble and collet are preliminarily assembled by contracting the latter until its tongue or bead 28 snaps into the groove 3! in the former. This affords a swivel connection between them, permitting holds the sleeve securely in place in the body.

The collet 25 and the thimble 29, swivelly united as explained above, are then slipped over the neck I I. The body Hi with the sleeve therein is then placed on the neck so that the sleeve accommodates the adapter for the greater portion of its length. The collet and thimble are then slid back toward the body until the former enters the bushing and embraces the sleeve and the latter is threadedly engageable with the exposed end of the bushing. By turning the thimble home on the bushing, the collet is forced within the latter and is contracted by the taper of the bore there in whereby the sleeve is radially compressed to make an air-tight frictional fit with the adapter. The position of the body on the neck may be readily adjusted for tuning, by backing off the thimble. This retracts the collet and releases its grip on the'sleeve. When the desired adjustment has been made, the thimble is again turned down tight to hold the parts in adjusted relation and re-establish the tight fit between the sleeve and the adapter.

It will be apparent that the invention has numerous advantages over mouthpieces as previously made. In the first place, a tight fit be tween the mouthpiece and instrument neck is assured at all times, even though'slight shrinkage of the sleeve should occur, since the original friction fit thereof is not relied on but means are provided for positively contracting it tightly about the neck. In the second place, the synthetic material of which the sleeve is composed, in addition to being particularly well adapted to make an air-tight joint under compression, is non-absorbent and is durable. It is a loose part, however, and should it show wear after prolonged service, may beeasily replaced at low cost without requiring a skilled repair man as in the case of the cork sealing rings and sleeves previously employed. Adjustment for tuning is easily made and accidental change of tuning is prevented, Moreover, the frictional coupling secured by my invention is such that the body of the instrument may be rotated and clamped to any desired angle with respect to the mouthpiece and will remain so positioned until released.

The several parts of the gripping means are simple, light in weight, and inexpensive to manufacture. The should last almost indefinitely with ordinary care.

Although I have illustrated and described herein only the resent preferred embodiment of my invention, it will be understood that changes in the details or arrangement thereof may be made without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. An adjustable mouthpiece for wind instruments of the character described comprising a screwed on the bushing to advance or retract :i

body having a threaded opening with an annular shoulder at its inner end, a sleeve receivable in said opening and having a flange at one end thereof for abutting against said shoulder, a bushing having threaded engagement in said opening for holding said sleeve flange against said shoulder to secure said sleeve in position with its other end projecting from said opening for engagement over the end of an instrument to which the mouthpiece is to be connected, said bushing having an internal surface tapering in an axial direction but spaced from and concentric to said sleeve to provide an annular space between said sleeve and bushing, a collet receivable in said space and having a surface engageable with said tapered bushing surface but having a taper in an opposite axial direction so that axial move ment of said collet will be effective to apply and elease a clamping force to said sleeve for adjustably clamping said sleeve to the end of an instru-' ment received therein, and a nut threaded on said bushing and having a connection with said collet so that rotational movement thereof will be eifective to move the collet axially to apply and release said clamping force so that the axial position of the mouthpiece on the end of an instrument may be adjusted.

2. An adjustable mouthpiece for wind instruments of the character described comprising a an axial direction but spaced from and concentric to said sleeve to provide an annular space between said sleeve and bushing, a collet receivable in said space and having a surface engageable with said tapered bushing surface but having a plurality of circumferentially spaced and axially 10 Number extending slots each extending axially inwardly from an end thereof to a point adjacent the other end thereof, said slots being alternately arranged with adjacent slots respectively extending inwardly from opposite ends so that the collet 15 Number may be circumferentially compressed by the action of said tapered surfaces in response to axial movement of the collet to apply a clamping force to the external surface of said sleeve over substantially the entire length of the collet.

EDWARD M. DILLON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date 1,385,239 Babbitt July 19, 1921 1,629,932 Simpson May 24, 1927 FOREIGN PATENTS Country I Date 51,440 Netherlands Nov. 15, 1941 702,898 France Apr. 18, 1931

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