US1103705A

US1103705A - Automatic multiple-note horn.

Info

Publication number: US1103705A
Application number: US61855111A
Authority: US
Inventors: Etienne Teste
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-04-03
Filing date: 1911-04-03
Publication date: 1914-07-14
Anticipated expiration: 1931-07-14

Description

E. TESTE. AUTOMATIC MULTIPLE NOTE HORN.

APPLICATION FILED APR. 3, 1911.

Patented July 14, 1914.

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AUTOMATIC MULTIPLE NOTE HORN.

APILIOATION FILED APR. 3, 1911.

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. AUTOMATIC MULTIPLE NOTE HORN.

APPLICATION FILED APR.3, 1911.

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ETIENNE TES'IE, 0F PARIS, FRANCE.

AUTOMATIC MULTIPLE-NOTE HORN.

Specification of Letters Patent.

Patented July 14:, 1914.

Application filed April 3, 1911. Serial No. 618,551.

To all whom it may concern Be it known that I, ETIENNE Tnsrn, of 18 Rue des Bois, in the city of Paris, Republic 'of France, machine maker, have invented Improvements in Automatic Multiple-Note Horns, of which the following is a full, clear, and exact description.

This invention relates to improvements in the horn which forms the subject of former Patent No. 970136 of 13th September 1910.

These improvements are essentially characterized by: 1. An air distributer provided with several series of openings capable of being brought opposite the trumpets and so arranged that the sounds successively emitted will produce a complete musical phrase or a number of musical phrases. 2. The operation of the air distributer by a spring-pressed pawl jointed to a metal collar adapted to rotate on the distributor when the bulb is compressed and to act on a ratchet-wheel keyed to the distributer at the time that the air enters the bulb. 3. Means for arresting the air distributer. 4. A construction which permits of either entirely stopping the emission of sound or of producing a uniform sound.

The invention will be described with reference to the accompanying drawings wherein Figure 1 shows a perspective View of the apparatus; Figs. 2 and 3 a front view and side view respectively of the portions constituting the air distributer, drawn to a larger scale; Fig. 4 a vertical section on line AA of Fig. 3 and Fig. 5 a similar view showing the displacement of the collar which carries the pawl. Fig. 6 shows the air distributer separately. Fig. 7 is a vertical longitudinal section of the distributer. Fig. 8 shows separately the means for enabling the emission of sounds to be suspended. Fig. 9 is a vertical section on line B-B of Fig. 3.

As stated in the specification of the former patent the horn comprises a metal cylinder a to which are fixed the trumpets 6, b 72 b which communicate with the cylinder through the openings 0 of rectangular form made in the periphery of the latter and situated at different positions in the length of the cylinder, as indicated in Fig. 4:. Within the cylinder at the distributer, which permits of directing the air expelled by the bulb d successively into one of the trumpets 1;, b 6 or bt, is fitted, said distributer being con stituted by a metal tube 6 closed at one extremity by a disk 6 and at its other extremity by a ratchet-wheel f whose function will be explained later on. The periphery of the tube 0 is provided with rows of openings g, g g g g five rows being shown in the drawings, The openings 9, which are of rectangular form and placed close to one another, are arranged in such manner as to come in front of the tube h which puts the cylinder 6 into communication with the air bulb cl. The rows of openings g g 9 g are arranged at either side of the row of openings 9 so as to put the cylinder 6 into communication with the trumpets b, b b 6 The number of openings for each of the series g g 9 9* may be varied and depends upon the grouping of the notes of the musical phrases which are to be produced.

The tube 6 is provided with an inner concentric tube e of smaller diameter, one of whose extremities is attached to the disk 6 while the other extremity is bell-mouthed and abuts against the interior surface of the wall of the tube 6 (Fig. 7 so as to leave an annular space 6 between the two into which the air entering through the openings 9 passes before passing through the openings g g 9 or g. The tube c thus lessens the capacity of he tube 6 and allows the air to act upon the reeds of the trumpets when it arrives in the annular space 6 The tube 6 is held in the cylinder a by a screw e bearing upon the end of a cover a which closes one end of the cylinder a and screwing into a socket 6 formed on the disk 6 In the space between the disk 6 and the cover a a fiat metal spring i is arranged, the one end of said spring being fixed to the cover while its other bears against the disk 0 the spring thus constituting a brake to limit the rotation of the distributor and prevent it from rotating a distance greater than that separating the teeth of the ratchetwheel 7. The ratchet-wheel is contained in a box (1 whose diameter is greater than that of the cylinder a with which it is integral, said box a being closed by a cover a held in place by a bayonet fastening. The tube It, debouching opposite the openings g of the distributor and leading the air into the latter, is arranged on a transverse cylinder j which itself communicates at one of its extremities with another cylinder is placed parallel with thetube ,h. Upon one of the extremities of the cylinder is an air bulb cl is.

7 whose extremities a rod m (adapted to operate the air distributer as will be seen hereafter) is jointed. The one end of the piston Z is provided with ports m surroimding the rod m, while its other end is furnished with a valve n which permits the escape into the bulb c1 of the air entering the piston through the openings m (Fig. 4). The piston Z isv constantly pressed toward the bulb d by a spiral spring 0 bearing against the ring cover p attached to the end of the tube is and at the other end against the upper end of the piston. The rod m is jointed on the one hand to the piston Z and, on the other hand to a lug g in one with the collar g which surrounds the air distributer immediately behind the ratchet-wheel f. This collar 9 passes into the box a bv an opening a. To the collar 9 there is hinged a pawl g which constantly tends to engage with the teeth of the ratchet wheel f under the stress of a spring 9.

The operation is as follows: When pressure is exerted upon the bulb (Z the piston Z is moved forward by the air and the movement of the rod m partially rotates the collar 9 which carries with it the pawl 9 which becoming released from the tooth of the ratchet wheel with which it was engaged, slides over the periphery of the ratchet-wheel and comes into engagement with the next tooth. When the bulb (Z is released, after the air has been expelled from it, the piston Z returns to its former position under the action of the spring 0, drawing with it the rod m which in its turn draws with it the collar 9 and the pawl. The pawl, being then in engagement with the ratchet-wheel f, it turns the latter to an extent corresponding to one tooth of the ratchet-wheel. Thereupon a fresh opening g g g or 9 comes opposite the trumpets Z), 6 '6 or bflso that when the bulb d is again acted on, the air passing into the distributer escapes by this opening and so on, the distributer being partially rotated by the spring 0- acting upon the piston Z. This arrangement thus insures v the proper working of the air distributer.

It is to be furthermore noted that the distributer being contained in the box a which is closed by the cover (4 is sheltered from dust and rain.

To fix the collar 9 in a predetermined position I fix to the box a a small cylinder 1" through which extends a pin r carrying a milled button r on' one of its extremities,

the other'extremity of the pin being adapted the distributer.

say, in the engaged position or not, by means of a spring-pressed bolt 8 the extremity of which engages in a groove in the pin.

If it is desired that the distributer shall turn normally, the pin r is retracted so that its extremity is out of contact with the extension of the collar 9 If it is desired to obtain a uniform sound, pressure is exerted on the pin r so as to cause its extremity to engage in the slotr Lastly, if it is desired to entirely stop all emission of sound the pin 1 is engaged in the cut-away part 7 in which case the piston Z closes the opening by which the cylinder is communicates with the cylinder j while the pin 1 looks the piston so that no air can pass into The operation of the horn thus constructcd is the. same as that described in the specification of the'former patent, that is tov say, the air expelled by the bulb (Z passes (after having entered the cylinder 72 and actuated the trembler) by way of the tube It into the air distributer e, thence escaping through one of the trumpets 6, b

6 b as has been stated above.

In order to facilitate the introduction and.

withdrawal of the cylinder e it is furnished with a button 6 attached centrally to the littCl'lQt-WhQGl f. The screw 0 at the other extremity of the cylinder 6 enables the latter to be turned from the exterior in order to bring opposite the ratchet g the tooth of the ratchet-wheel'f arranged in line with the opening 9 to produce the'first note of the musical p'hrase,the point being indicated by a sign traced on the ratchet-wheel. As the air distributer e can be withdrawn with the greatest facility it may be readily replaced by another provided with' openings arranged in a difl'erent order for the purpose of producing other musical phrases. Thus it is possible with a single apparatus to obtain an indefinite number of difierent musical airs bv merely changing the distributer c. This change may however be effected by producing upon a cylinder of suitable length two or more series of openings each corresponding to a different musical phrase.

Claims:

1. An automatic multiple-note horn, comprising a plurality of trumpets, anair distributer provided with a series of openings capable of coming successively in front of the trumpets and arranged in such manner that the sounds successively emitted produce one or severaipredetermined musical phrases, said air distributer being tubular and furnished with an internal concentric sleeve which forms between it and the in ternal periphery of the distributer an annular chamber which directs the air directly moving the parts in the opposite direction into the reeds of the trumpets. and actuating the distributer.

2. In an automatic multiple note horn, an The foregoing specification of my imair distributer provided with aratchet wheel, provements in automatic multiple-note a collar movable on the distributer, a pawl horns signed by me this tenth day of March, carried by the collar and engaging the 1911. ratchet wheel, a piston having connection with the collar, an air bulb for forcing air against the piston and moving the latter in a direction adapted to slide the pawl along the ratchet wheel, and a spring for ETIENNE TE STE.

Witnesses:

DEAN B. MAsoN, R. Trrnaror.

five cents each, by addressing the Commissioner 01' ratents,

Copies of this patent may be obtained for Washington, D. G.