US1843084A - Multitone horn - Google Patents

Description

Jan. 26, 1932. E.. c. HoRToN ET AL 1,843,084

MULTITONL` HORN l Filed Nov. 2a, 1930 Figi Y im.' f 26 22 25m le lo ,O n v V5 ,ill

` glwonow Erwin @Horton Henry Hueber Patented Jan. 26, 1932 UNITED stares PATENT carica f ERWIN C. HORTON, 0F HAMBURG, AND HENRY HUEBER, 0F BUFFALO, NEXV YORK, AS-

' SIGNOR/S` TO TRICOPRODUCTS CORPORATION, OF BUFFALO, NEW YORK MULTITQNE HORN Application led November 28, 1930. Serial No. 498,882.

' This invention relates to signal horns for motor vehicles such as automobiles and boats, and more particularly to such signal horns as are adapted to emit a plurality of dierently pitched signal tones.

The invention contemplates a horn of simple and durable construction and having sound generating elements adapted to be actuated by fluid-pressure, which may be the lessthan-atmospheric pressure created in the intake manifold' of the vehicle engine, or by other means as an electric current. It further comprehends a device, the major parts of which are preferably constructed of light stampings, having a plurality of separate trumpet passages for containing columns of air resonant with the sound generating ele- 'm'ents and communicating therewith.` It is contemplated that these trumpet passages may be of different lengths whereby the contained air columns will oscillate on different wave lengths and frequencies in order that dierently pitched sound notes willr be produced. The sound passages are preferably formed of such relative sizes that the sound oscillation therein will be harmonious and present a pleasing, concordant and harmonious sound effect.

The invention further resides in the structural characteristics of the Various part-s of and of the entire completedhorn device which will be described with reference to a typical embodiment of the invention, illustrated in the accompanying drawing, wherein Fig. -1 is a side elevation of the completed horn, a portion thereof being broken away to reveal the features of the interior.

Fig. 2 is a bottom plan sectional View taken about on line 2-2 of Fig. 1. v

Fig. 3 is a vertical sectional view looking toward the rear of the horn and taken approximately on line 3-3 of Fig. 1.

Fig. 4 is a fragmentary front elevational View showing theupper and forward portion of the horn; and

Fig. '5 is a detail elevational view, depicting one of the members which cooperates to form i the trumpet passages.

containing sound which may be of any suitable type but which is preferably of the character disclosed in our copending application, Serial No. 486,-

228, filed Oct. 3, 1930, in which the'sound imtrumpet members which compose the'body portion 14 of the device. As shown in Figs. 2 and 3the body comprises a pair of opposed plates 15 and 1G, each having a serpentine or substantially S-shaped depression 17 formed thereon. The depressions, which are l' preferably semi-circular in cross section, of the plates 15 and 16 terminate respectively 1n the outwardly extending portions 13 and 14,

and increase in depth or radius from the tubular ports 13, 14 to the opposite ends 18, 19

thereof, the latter portions of which may each be forme-d with" a shouldered recess 21 for a purpose to be hereinafter described.

A flat partition .member 22, shown in Fig. 1

and of outline similar to that of the plates 15 l and 16, is disposed between the latter, and

forms with the depressed portions 17 a pair of opposed sound or trumpet passages 23 and 24. The latter are, in the illustrated embodiment, of substantially S-shape and of inf creasing semi-circular cross-section from the initial ends 13, 14 to the portions 18, 19 thereof. A bell 25 may be pressed vinto the seat formed by the vshouldered portions 21. A partition member 26, shown in Fig. 1 and seated in the bell, provides an extension of the partition plate 22 and with the bell defines the final end portions of the passage.

A screen 27, for excluding insects, dirt and other extraneous matter from the interior of the body 14 and the sound boxes 10, may be secured to the bell near the mouth thereof. Any desired manner of securing the screen in place maybe utilized, but it is preferred to accomplish this b v pressing the `screen inte generating mechanism the partition 22 and may be securedthereto.

bell. y

As maybe readily observed from Figs. 1 and 2, the passage 23 is, in this embodiment Aof the invention, shorter than the passage 24,

the sound-box 10, .communicating with the latter, being disposed yrearwardly of the other sound boX, and the rearward connecting tubularuportion 14;. Portions 29 of the plate membersv 15 and ladjacent'the depressions 17 and the tubular extensions 13 and 14V abut by welding or by other methods.

Sound producing oscillations setup inthe sound boxes 10 will be modiiied and augmented'- in the trumpet passages 23 and 24, the latter preferably being of. such lengths thatfzthe` air columns therein will-.be in resonancefwithfthe soun-d'generating means and the oscillations of one aircolumn will be in harmony; with the oscillations of the other. TheV soun-d boxes f may4 be actuated independently of eachotherto produce different soundy Itwill be further understood thatV the speciic `device described may be modified Vas to various structural-details, andit is intended that the. inventionshould be commensurate withL the scope. of the'appended claims.

What is'claimedis:

1.' A horn comprising a pluralityofsound boxes, a body-member comprising a pair of plates each-.having complementary depressions, said depressions together composing a trumpetpassage, a partition `member for di- Y vidingsaid trumpetipassagavand said horn ing the same into a pair of trumpet passages,

having passages connecting said sound boxes with: said `passage: divisions.

. 2. Ahorn comprising a. pair of sound boxes, a trumpet member havinga tubular portion for engaging eachof said sound boxes, saidtrum-peti. member comprising a pair ofisectionsy each having al continuous deformation-therein, said deformations to- `gether,'defining a. chamber extending from said.' tubularportions. to an edge of said sec- 'tions,.a.nd a partition msaid chamber divideach. of said lpassages `communicating-with one of .said tubular portions.

Y 3.. A-trumpet forhorns comprising a plu- "ralityz, efr-.plates .each havingl a ycontinuous an annular depression 28 formed about the deformation therein, partition means secured between said plates, said partition means cooperating with saidfdeformations to define a plurality of trumpet passages, a bell securedL to said plates, and said trumpet passages merging into said Abell.

4. A trumpet for horns comprising a pair of plates each having a continuous deformation therein, a partition member between said plates andabuttingthe surfaces thereof adjacent said deformations, said partition member coacting with said defonnation to dene a pair of trumpet passages.

5. A trumpet-forhorns comprising a pair of plates secured to opposite sides of a partition member,said plates and partiti on'member being of 4substantially thesame contour, a serpentine deformation in each o-f said plates cooperatingwithsaid partition member to define a pair of serpentine trumpet passages, each of said passages Vincreasing in cross-sectional area from one endtliereof to the. opposite end thereof. 6. A trumpet forhorns comprising a pair ofk substantially complementaryplates each having a serpentine deformationthereon,

said deformations complementing each other to form a serpentine passage, a partition member disposed between and in contact with each of said pair of plates, said member dividing said passage into a Vpair .of sound passages. v I Y p 7.' A-trurnpet for horns comprising a pair Vof substantially complementary plates each having aserpentine .deformation thereon, ak

partition member disposed between said plates and `cooperating with said deformationsto ldelinea pair ofy trumpet passages, said passages being of different lengths.

8. A trumpetfor horns comprising a pairr of complementary flat plates'ofsubstantially rectangular design, saidlplates having channels formed therein, a partition between said plates, said partitionV cooperating with the channeled portions of theV plates toform al pair `of* sound passages opening at ione end yat marginal portions of the plates, openings formed in said plates at the other ends of said f channels, the llength of eachof said sound 'passagesbeing greater than either. dimension of the plates.

9. ln a horn a trumpet member comprising and eachf.opening at one end through a marginal portion of said plates, openings in said plates forming theo-pposite terminals of said passages, and a sound lboX secured adjacent each lof said openings, whereby a multi-tone sound note may beproduced by the'horn.

10.Y Atrumpet for horns comprising a pair n of complementary sections eachhaving a continuous deformation therein, said deformations extending to the marginal portions of the sections, shouldered recesses at said marginal portions, a bell seated in said recesses, and partition means in said bell and between said sections for cooperating with said bell and kplates to form a pair of sound passages.

11. A trumpet for horns comprising a body portion having a pair of trumpet passages formed side by side tliereimra bell on said body portion at the opening of said passages, partition means dividing the, interior of said bell into a pair of spaces each communicating with one of said trumpet passages, an annular recess about said bell, and a screen seated in said recess.

12. A multi-horn for motor vehicles and the like comprising a unitary trumpet stru@ ture having a plurality of sound passages therein diliering as to lengths7 and a sound generating box for each sound passage independently operable from tlie companion sound Generating boX.

13. multi-tone horn for Vehicles and the likeJ comprising an elongated trumpet member of increasing diameter from one end to the other end, the larger end being open, a sound generating unit connected to the smaller end of the member, and another sound generating unit connected to a medial portion of the trumpet member.

ERWIN C. HORTON. HENRY HUEBER.

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