Method of making a very compact audio warning system

A method of making a very compact voiceless vehicular warning system including a light and a sound generator disposed for emitting voiceless warning sound waves to the atmosphere, said sound generator having an outlet, a sound deflector means, and an expander horn for expanding and propagating sound waves generated by said sound generator, said method comprising the steps of:

• forming a housing with a cavity defining said expander horn, said expander horn having side enclosures, a closed rear enclosure and an open front portion;
• forming said housing with a wall having an upper vertical portion provided with an opening therein, an intermediate horizontal portion, and a lower portion, said upper vertical portion and said intermediate portion forming a semi-circular receptacle for support of said sound generator, and, said intermediate portion and said lower portion forming a said side enclosure and said rear enclosure for said expander horn;
• mounting said sound generator in said semi-circular receptacle for aligned relation of said sound generator outlet with said opening;
• attaching said sound deflector to said vertical portion of said wall, said sound deflector disposed for receiving the sound waves from said sound generator outlet and for deflecting said sound waves through a first angle of sustantially 90.degree. and then through a second angle of substantially 90.degree. for subsequent propagation of the sound waves substantially 180.degree. from the path formed by the second deflection of the voiceless warning sound waves, whereby said propagated sound waves serve as a voiceless audio warning signal;
• forming a receptacle in side-by-side relation with said expander horn and mounting said light in said receptacle;
• and
• attaching said voiceless audio warning system to a vehicle whereby a vehicular warning system is produced.