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Publication numberUS1333703 A
Publication typeGrant
Publication dateMar 16, 1920
Filing dateJun 30, 1917
Priority dateJun 30, 1917
Publication numberUS 1333703 A, US 1333703A, US-A-1333703, US1333703 A, US1333703A
InventorsThompson Brinks Hove
Original AssigneeThompson Brinks Hove
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1333703 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Paterited Mar. 16,1920.




To all "whom it may concern.-

Be it known that I, Hove THOMPSON BRINKS, a citizen of the United States, residing at Indiana, in the county of Indiana and State of Pennsylvania, have invented certain new and useful Improvements in AutomobileHorns; and I do hereby declare the following to be a full, clear, and exact description vof the invention, such as will enable others skilled in the art to which it appertains tomalge and use the same.

This invention relates to improvements in signaling devices-for motor vehicles, and has for its primary object to provide a horn and means utilizing,- the exhaust products of combustion from the engine of the motor vehicle to actuate the horn.

Another object is the provision of a conveniently operable cont-rolling means for the horn, whereby the latter may be sounded at the will of the driver of the vehicle.

With these and other-objects in view, the invention consists in the novel construction, combination and arrangement of parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawing, in which:

Figure 1 represents a side elevation of the horn, partly in section, showing frag ments of the floor and exhaust pipe of a motor vehicle,

Fig. 2 represents a longitudinal sectional View through the horn in the plane of the vibrating wheel,

Fig. 3 represents a vertical sectional view through the. casing in the plane of the main shaft, and

Fig. 4 represents a longitudinal sectional view through the coupling for attaching the horn to the exhaust pipe.

Referring to the drawing in detail, wherein similar reference numerals desig nate corresponding parts throughout'the several views, the numeral 5 indicates a frag-.

ment of the exhaust pipe of a motor vehicle,

which is connected, in the usual manner,

with the engine (not shown) and is arranged under the floor, a fragment of which is designated by the numeral'6.

At a point intermediate the engine and I mufiler, the exhaust pipe 5 is cut in two and the adjacent ends are slipped into the head of a T coupling 7, the vertically disposed portion 8 of which receives the depending inlet'pipe 9 carried b the circular casing, designated generally ythe numeral 10.

control the operation of the horn.

Specification of Letters Patent. Patented BIa'r, 16, 1920, Application filed June 30, 191?. Serial No. 177,846. I

The casing 10 isconstructed intwo parts, designated bythe numerals 11 and 12, and the ddJtlCQlli) edges of the parts are flanged and bolted together, as indicated at 13. A-

bustion. entering the casing through the inlet pipe 9. The products of combustion are exhausted from the casing'lO through an exhaust pipe 19.

A vibrating wheel 20 is supported uponthe shaft 17 within the chamber 16 and is provided with a series of ratchet teeth 21" arranged to contact a stud 22 carried. by a diaphragm 23, whereby the latter is vibrated during rotary movement of the vibrating wheel 20.

The front portions of the sections 11 and 12 are flared, as indicated at 24, and a horn 25 is bolted, or otherwise secured, as, indi-' catedat 26, to the flared end 24 of the'casing. The diaphragm 23 is secured inposition between the horn and flared terminal of the casing and may be readily removed for repair or replacement by simply removing the bolts 26" which fasten the horn in position. i

A valve 26 is rotatably supported in the horizontally disposed; portion of the T coupling 7 at a point behind the vertically dis posed portion 8 thereof and is adapted to be closed to cause the products oii combustion passing through the exhaust'pipe in the di rection of the arrows in Fig. 4 to flow into the casing 10. A rotary valve 27 is also supported in the vertically disposed portion of the coupling and is designed to control the admission of the products of combustion to the casing. The two valves 26 and 27 are provided with arms 28 and 29, respectivelv, which are connected with a cable 30 extending rearwardly under a guide ulley' 3'1 and attached at its rear end to a cot pedal 32, which latter is pivotally supported at 33 under the floor 6 of the vehicle and is adapted to be actuated by the foot of the driver i0 s clearly s iown in Figs 4, the valves 26 and 27 move oppositely, that, is.;to say, the valve 26 is normally opened to allow the products of combustion to pass freely through the exhaust pipe and into the mufiier,-npt shown, while the valve 27 is normally closed to preventthe admission of the products of combustion to the casing 10. However, when the cable SOis pulled by a forward move.- ment of the upper terminal of the pedal 32, the position of the two valves is reversed, the passage of the products of combustion to the mufiier being cut 05 by the closed valve 26 and the open valve 27 permitting the products of combustion to pass freely into the casing 10 and act upon the bladed wheel 18 to rotate the shaft 17 and vibrate the diaphragm 23 to produce a Warning signal.

As suggested in Fig. l, a cable housing 8-l may be secured underneath the'floor and extended upwardly to the steering wheel or other part of the vehicle Willlllll convenient reach of the hands of the driver, The housing 34 incloses a flexible cable 35, which is attached to the lower terminal of the pedal 32 and provided at its upper end with a button 36, which may be pressed to effect a longitudinal movement of the cable in the housing 34 toactuate the pedal. 32 and thus sound the signal.

What I claim is; 4

1 A horn including a casing comprising a pair of sections and a partition arranged between the sections and forming a pair of chambers, a shaft extending centrally through the chambers, a rotor carried by said shaft and arranged within one of said chambers, a toothed wheel arranged on. the shaft and disposed within the other chamnected to the exhaust pi'pe,a casing con-' nected to said branch pipe and includin a pair of sections and a partition secured etween the sect ons thereby forming a pair of chambers, a shaft extending centrally through the chambers, a rotor arranged on the shaft and disposed within one of said chambers and adapted to be rotated by the exhaust gases from the exhaust pipe, a toothed wheel mounted on the shaft and arranged within the other compartment and disposed in spaced parallel relation to said rotor, a diaphragm carried by the casing and arranged at right angles to said toothed wheel and provided with a centrally arranged stud e'ngaged by the tooth of said toothed wheehand means to direct the exhaust gases from the exhaust pipe through the branch pipe and into contact with said rotor.

In testimony whereof I affix my signature in presence of two witnesses.


Witnesses H. T. Ross, J., G. KEARNEY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4763358 *Dec 16, 1986Aug 9, 1988Intersonics IncorporatedRotary sound transducer
US5191618 *Dec 20, 1990Mar 2, 1993Hisey Bradner LRotary low-frequency sound reproducing apparatus and method
U.S. Classification116/143, 340/390.1
International ClassificationG10K9/00, G10K9/04
Cooperative ClassificationG10K9/04
European ClassificationG10K9/04