US993454A - Noise-making device. - Google Patents

Description

G. H. MBRRIGK.

NOISE MAKING DEVICE. APPLICATION FILED O0T.l5, 1910.

993,454. Patented May 30, 1911.

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GEORGE E. MERE/TICK, OF ST. LOUIS, MISSOURI.

NOISE-MAKING DEVICE.

To all whom it may concern:

Be it known that I, GEORGE H. MERRICK, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Noise-Making Devices, of which the following is a specification.

This invention relates to noise making devices, and has for its primary object to provide an improved construction, combination and arrangement of parts in a device of this nature.

One of the objects of the present invention is to provide an improved vibratory body and in combination therewith improved means for vibrating said body.

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawings exemplifying the invention in which Figure 1 is a perspective view of a complete noise making device constructed in accordance with the principles of this invention; and Fig. 2 is a longitudinal section of the same, parts being shown in elevation.

Referring more particularly to the drawings and the embodiment shown therein, a hollow sound intensifying box is provided, preferably in the form of a cylinder 1 open at both ends, said cylinder being conveniently constructed from a piece of sheet metal bent into the cylindrical form shown and having one edge bent inwardly as shown at 2 in Fig. 2 to provide a reinforced. edge to said cylinder. Upon the other end of said hollow cylinder 1, is mounted a vibratory body in the form of a cap 3 provided with a central aperture a and having the middle of said cap adjacent to said aperture formed with an annular convex protuberance 5, whose inner edge is wire drawn at 5 to provide means whereby the disk may be more readily vibrated. The function of the annular protuberance 5 is to reinforce the edge of the metal adjacent the aperture 4t so as to adapt it to more readily resist the abrasion of the vibrating member hereinafter to be described. A further function of said annular protuberance is to stiffen the vibratory body or disk 3. Said vibratory body 3 is provided about its periphery with an annular flange 6 properly disposed to engage the cylindrical body 1, thus forming a closed end for said body with the exception of the aperture 4. In order to provide means for Specification of Letters Patent.

Application filed October 15, 1910.

Patented May 3%, 1911.

Serial No. 587,197.

vibrating the vibratory body or disk 3, a reciprocatory member or bow 7 is provided which is preferably in the form of a cylindrical rod to adapt it to be drawn over the edge of the metal about the aperture 4. The rod or bow 7 adjacent one end is provided with an enlargement 8, preferably spherical in form, said enlargement being larger than the aperture 4: in the vibratory cap or disk 3, thus retaining the rod 7 against being drawn entirely through the aperture &. Upon the other end of the rod or bow 7, a spherical knob 9 is mounted with a threaded connection 10 to adapt the knob to be removed from the rod, so that said rod may be inserted into position and removed therefrom. The end of the rod 7 farthest from the removable knob 9, may be provided with noise making means, exemplified in the present embodiment of the invention by a whistle 11 having a mouthpiece 12 and a vent opening 13. As shown in Fig. 2, the whistle 11 is disposed opposite the open end of the cylinder 1 and may be moved nearer or farther from said cylinder to vary the effects.

The operation of the device will now be apparent, and briefly stated is as follows: When it is desired to create a harsh grating sound, the bow 7 is drawn across the inside edge of the disk 3, thus imparting a vibratory movement thereto which in turn imparts a vibratory movement to the air within the cylinder box 1, said box 1 being thereby adapted to serve the functions of a resonator or megaphone. Furthermore, should it be desired to use the whistle 11 or other noise making device similarly disposed, in combination with the sound-intensifying box 1, said whistle or other noise making device may be disposed at various distances from the diaphragm 3 and the air waves therefrom modified with varying effects.

What I claim is:

1. In a device of the character described, the combination with a sound box provided with a vibratory cover disk at one end, said disk being provided with a central aperture and an annular reinforcing protuberance extending around said aperture, of a vibrator rod reciprocably engaging the edge of said disk around said aperture.

2. In a device of the character described, the combination of a hollow sound box open at one end and provided with a vibratory disk closing the other end, said disk being provided with an aperture, and a vibrator aperture, and a rod reciprocably mountedin body reciprocably mounted in said aperture. said aperture and rubblng against said re n- 3. In a device of the character described, forced edge.

the combination With a hollow sound box GEORGE H. MERRICK. 5 provided With a vibratory disk, said disk In the presence of being provided With a central aperture and JULIA B. MEGOWN,

with a reinforcement about the edge of said I A. O. KNIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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