US2512288A - Vibratory rotary device - Google Patents

Description

J1me 1950 T. J. SCHUMACHER 2,512, 8

VIBRATORY ROTARY DEVICE Filed July 24, 1946 IN VEN TOR. Jrrerzce J flc/zzmzacer llama/44o,

Patented June 20, 1950 2,512,288 VIBRATORY ROTARY DEVICE. Terrence J. Schumacher, Grayslake, Ill. 7 Application July 24, 1946;. Serial No. 685930 7 3 Claims. 1

This invention relates, in general, to a vibratory rotary device, and has particular relation to an electrically operated device rotated by vibration and adapted for use: with model airplanes, or as a toy, although not limited to such use.

One of the main objects of the present invention is to provide a device having a vibratory member adapted to be vibrated by an electromagnet, and in which a propeller or other rotary member is adapted to be rotated by vibration of said vibratory member.

Another object of the invention is to provide in a device of the character described, means for reversing the direction of rotation of the rotary member; more particularly, a mounting for the vibratory member, which mounting is adapted to be manipulated to reverse the angularity of the vibratory member relative to the pole end of the electromagnet whereby to reverse the direction of rotation of the rotary member.

Another object of the invention is to provide a device of the character described having various features of novelty and advantages, and which is particularly characterized by its simplicity in construction, its lightness in weight, its economy in manufacture, its adaptability for use for rotating the propeller of a model airplane or the like, or as a toy, and its efiectiveness in use for the purposes set forth.

Further objects and advantages of the invention will appear from the following detailed description, taken in connection with the accompanying drawing in which:

Figure l is a side elevation and more or less diagrammatic view of a device embodying the present invention;

Figure 2 is a top plan view of the device shown in Figure 1; and

Figure 3 is a detail section taken on the line 33 of Figure 1.

Referring now in detail to the drawing, the device shown in Figures 1, 2, and 3 comprises an angular bracket I formed, for example, of iron or steel and having an integral outturned. or lateral lug 2 on the leg Ia thereof. An electromagnet 3, suitably mounted at 4 on the other leg lb of the bracket I, comprises a coil 5 and a core 6.

The armature is in the form of a flat spring strip l secured to the lug 2, for example, by bending integral side projections 8 on the lug 2 over and into firm holding engagement with the adjacent end of the strip 1. The strip extends adjacent the pole end of the electromagnet 3 to be vibrated by energization of the electromagnet, with. the width of the strip I presented at an angle to the pole end of the electromagnet 3 as shown in detail in Figure 3.

The rotary member 9 is in the form of a propeller for use, for example, as the propeller of a. small model airplane, or the propeller may be used as a toy or otherwise as desired. An escutcheon pin l0 loosely couples the propeller 9 to the adjacent end of the strip 1, whereby the propeller 9 is rotated about the pin Ill by vibration of the strip 7 when the electromagnet 3 is energized. The pin I0 is shown as headed at its free end at II. The shank of the pin it! passes loosely through a hole I2 at the axis of the propeller 9, and the pin I0 is secured to the adjacent end of the strip 1, for example, by soldering, as at I3.

The coil 5 of the electromagnet 3 is connected in circuit with a bell type transformer I4 by conductors I5. The transformer I4 has conductor means I6 provided with suitable connector means I! for connecting the transformer in circuit, for example, with a -volt A.-C. outlet, or With a battery or other suitable source of current.

A current interrupter I8 has cooperating contact arms I9 and 20 connected into the circuit between the transformer l4 and the coil 5 of the electromagnet 3. One contact arm I3 is secured to the lug 2, for example, with the attachment of the flat spring strip I thereto, and the other arm 20 may be secured to the adjacent leg I a of the bracket I. The circuit between the bell type transformer I4 and the coil 5 is through one conductor I5 to binding post 22, from the post 22 to the arm 20, and thence through the arm I 9 and coil 4 to the other conductor I 5 and to the transformer I4.

In use, when the coil 4 of the electromagnet 3 is energized by closing the circuit, the strip 1 is vibrated and the vibration of the strip 1 rotates the vibratory member or propeller 9 through the loose coupling l0 between the member 9 and the strip 1. The angularity of the strip 1 relative to the pole end of the electromagnet 3 determines the direction of rotation of the propeller 8.

The lug 2 is adapted to be engaged between the fingers, or by a suitable tool, and twisted to reverse the angularity of the strip 1 relative to the pole end of the electromagnet 3. Then when the electromagnet 3 is energized with the angularity of the strip 1 thus reversed, the propeller 9 will be rotated in the opposite direction by vibration of the strip I. Other means for adjusting the direction of rotation of the propeller 9 are contemplated within the scope of the present invention. The strip 1 is shown in dotted lines in Figure 3 in position of reverse angularity, as above described.

The embodiment of the invention shown in the drawing is for illustrative purposes only, and it is to be expressly understood that said drawing and the accompanying specification are not to be construed as a definition of the limits or scope of the invention, reference being bad to the appended claims for that purpose.

I claim: e

1. In a device of the class described, in com bination, an electromagnet having a core, a support, a vibratory member adapted to be vibrated by said electromagnet and comprising a fiat, narloosely mounted at its axis on said pin for rotation thereon in a plane at substantially right angles to the direction in which said strip extends, the angularity of said strip relative to the adjacent end of said core causing rotation of said rotary member on said pin when said strip is vibrated by said electromagnet.

2. A device according to claim 1 wherein the mounted end of said spring strip is supported for rotation of the strip about its longitudinal axis whereby to reverse the acute angle which the width of the strip presents to the adjacent end of the core of the electromagnet.

3. A device according to claim 1 wherein the electromagnet has a coil provided with an electric circuit and wherein there is a circuit interrupter in said circuit.

TERRENCE J. SCI-IUMACHER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 664,382 Chapman Dec. 25, 1900 FOREIGN PATENTS Number Country Date 197,679 Great Britain Nov. 10, 1924

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