US2781462A - Oscillating motor - Google Patents

Description

Feb 12, 1957 G. D. WHEELER ET Ax. 2,781,462

OSCILLATING MOTOR 2 Sheets-Sheet 1 Filed NOV. 17, 1954 Feb. 12, 1957 G. D. WHEELER Er AL 1 2,781,452

oscILLATING MOTOR Filed Nov. 17, 1954 2 Sheets-Shea?I 2 MEZ United States Patent' OSCILLATING MOTOR George D. Wheeler, Chicago, and Ray Wilson, Niles, Ill.

Application November 17, 1954, Serial No. 469,342

4 Claims. (Cl. S10-32) Our invention relates to an oscillating motor operated by a battery or other electrical source of power.

Among the objects of our invention is to provide an oscillating motor that will move back and forth to attract attention; to create such a device requiring only a battery for the source of power instead of an internal combustion motor or complicated electric motor; to supply a simple and uncomplicated structure, lasting in wear, successful and economical in operation, operable by anyone without special training, portable and effective in results.

Our invention contemplates such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by our invention.

While we have shown in the accompanying drawings preferred forms of our invention, yet we wish it understood that the same are susceptible of modification and change without departing from the spirit of our invention.

Referring to the drawings, Fig. l is an end elevational View of one embodiment of our device; Fig. 2 is a detailed sectional view on line 2-2 of Fig. l; Fig. 3 is a detailed sectional view on line 3-3 of Fig. l; Fig. 4 is a detailed sectional view on line 4-4 of Fig. 2; Fig. 5 is an open plan view of two halves of our frame, unassembled; Fig. 6 is a side elevational view of another embodiment of our device; Fig. 7 is a detailed sectional View on line 7-7 of Fig. 6; and Fig. 8 is a side elevational view opposite to Fig. 6.

The embodiment selected to illustrate our invention comprises a pair of non-magnetic metal frame members 10 and 11. Each of said frame members has an upwardly extending base portion 12, from the upper end of which extends an inward portion 13, from inner end of which extends an upper portion 14, from one edge of which extends an elongated vertical portion 15. Frame members 10 and 11 are positioned so that the elongated vertical portion of frame member 10 is spaced from an opposite elongated vertical portion 15 of frame member 11 and the respective upper portions 14 are spaced and opposite each other, providing a substantially rectangular space 16.

An electromagnet 17 is housed within space 16 and comprises a coil 18 surrounding a soft iron core 19, the oppositeends 2li and 21 of which extend into openings 22 in the spaced upper portions 14 of the frame members 10 and 11.

An iron washer 23 is positioned on the outside of each upper portion 14 to receive one of the ends 20 or 21 of core 19. Ends 29 and 21 are peened over to hold the parts in position.

A power arm 24 preferably of coppered basic wire extends through and is pivotally mounted in openings 25 in portions 1S of frames 10 and 11 adjacent their upper ends. A pendulum 26 preferably of coppered basic Wire is attached at its upper end to power arm 24 and has a downwardly extending portion 27 which is bent inwardly at its end to form an inward portion 28, which in turn is bent downwardly at its end to form a vertical portion 29 to the bottom end of which is attached a permanent magnet 30 preferably of Alnico 5. Said magnet 30 is positioned above electromagnet 17, and within its elec* tromagnetic field.

A contactor 31 of annealed beryllium copper of the equivalent is attached at its lower end to a portion 52 punched in from vertical portion 15. Contactor 31 extends upwardly where its upper portion may be movably contacted by inward portion 28 of pendulum 26.

A damping rubber member 32 surrounds contactor 31 adjacent its middle portion and extends to contact the inner surface of vertical portion 15.

ln one of our embodiments power arm 24 has at one end a hook portion 3:3' to which is removably attached an advertising display 36. To the other end of power arm 24 is attached a momentum control member 37, to the bottom loop portion 38 of which is removably attached a weight 39.

ln another emodiment of our invention, to one end of' power arm 24 is removably attached loop dii of a ratio- A coiled spring 4d is mounted on power arm 24. as a spacer.

A spacing member 45 is attached to and extends between the inner surfaces of vertical members 15 of framesy 1t) and 11 at their upper extent.

The upper end of an electrical cord 33 is attached to punched in portion 52 and contactor 31 and extends down through coil 18 to the positive terminal 46 of a dry cell battery 34;, which is housed in the space 47 between base portions 12 of frame members 10 and 11.

The positive terminal 46 of battery 34 contacts the basey portion 12 of frame 10 in opening 48 and the negative terminal 49 of battery 34 contacts the base portion 12 of frame 11 in opening 5t).

ln use, power from the battery flows through the coil of the electromagnet setting up an electromagnetic field when the contacter and the pendulum are in contact, thereby attracting the permanent magnet so as to move the pendulum in an upward arc and breaking the contact, When the pendulum has reached its upper extent, its weight causes it to fall by gravity downwardly to again make contact with the contacter. This forces the pendulum upwardly in the opposite direction in which it is then travelling. The contact is again broken, and upon the pendulum reaching its highest extent it falls by gravity downwardly to Contact with the contacter. This cycle is repeated for the life of the battery.

As the pendulum swings pivots the power arm. vWhere an advertising display is attached to the power arm, it is moved by the power arm. The momentum control and weight provide balance. in the embodiment where a ratio arm is provided, the power arm moves the ratio arm and in turn an action arm attached to the ratio arm, and of course the advertising display attached to the action arm.

It is within the contemplation of our invention that any suitable electrical source of power may be used, and that we are not to be limited tothe use of battery 34. Magnet 3i), while preferably a permanent magnet, may be in the form of an electromagnet. Our embodiments show magnet 30 as preferably positioned above electromagnet 17, but magnet 3G may be positioned below or at one side of or adjacent to magnet 3G, and will operate if it is within the electromagnetic iield of electromagnet 17.

While my oscillating motor is designed for use with and to operate an advertising display, yet it may operate as a toy or a signalling device, or as a scare crow in the 3 field, or any number of constructions where oscillating movement is desired.' l I Having thus described our invention, we claim:

1. An oscillator direct current motor comprising a pair of parallel sheetmetal frame members, an electromagnet positioned between said frame members, said electromagnet having a coil and a magnetic core, said core having opposite ends extending through right angle extensions of said frames and peened over for attaching said electromagnet to said frames, a power arm pivotally mounted on and extending through said frames, a pendulum nttached at its upper end to said power arm, a permanent magnet attached to the lower end of said pendulum, said permanent magnet spaced above said electromagnet, and within its electromagnetic field, a ratio member attached to said power arm, an action arm attached to the other end of said ratio member and extending across said body members a contactor attached -to one of said frames and positioned to contact said pendulum, a battery connected to said contactor, said coil and one of said frames whereby power flows through said coil creating an electromagnetic ield when said contactor and said pendulum are in contact moving the pendulum in an upward arc, said pendulum adapted when the contact between it and the contactor is broken to swing by gravity in a downward arc, the upward and downward arcs oscillating the power arm and through the ratio arm, the action arm.

2. An oscillatory direct current motor comprising a frame formed of two similar non-magnetic sheet metal parts, said frame having two parallel vertical portions each provided adjacent the bottom portion with a portion bent at right angles and having a horizontal extension terminating in a vertical portion, an electromagnet having its axis horizontal midway between said rst two vertical frame portions, said electromagnet having an iron core serving as a fastening means for the lower portion of said frame, means securing in spaced position the upper ends of said first vertical frame portions, an insulated contact carried by one of said latter vertical portions and being connected to the winding of said electromagnet, a pendulum mounted between said first vertical Vframe portions and having at its free end a permanent magnet within the magnetic eld of and the vertical axial plane of said electromagnet, an insulated electric contact mounted on one of said first vertical frame portions for making electrical contact with said pendulum, said contact being connected in series with said electromagnet winding.

3. An oscillatory direct current motor comprising a frame formed of two similar non-magnetic sheet metal parts, said frame having two parallel vertical rectangular f portions each provided adjacent the bottom portion thereof with a vertical portion bent at right angles and having a horizontal extension terminating in a depending vertical portion, an electromagnet having its axis horizontal midway between said rst two vertical frame portions, said electromagnet having an iron core extending through said right angle portions and serving as a fastening means for the lower portion of said frame, a single fastening means securing in spaced position the upper ends of said rst vertical frame portions, an insulated contact carried by one of said latter vertical portions and being connected to the winding of said electromagnet, a pendulum mounted between said first vertical frame portions and having at its free end a horizontal permanent magnet within the magnetic field of and the vertical axial plane of said electrcmagnct, an insulated electric contact mounted on one of said irst vertical frame portions for making electrical contact with said pendulum when it is in a generally Vertical position, said Contact being connected in series with said electromagnet winding.

An oscillatory direct current motor comprising a trame formed of two similar non-magnetic sheet metal parts, said frame having two parallel vertical rectangular portions each provided adjacent the bottom portion thereof with a vertical portion bent at right angles and having a horizontal extension terminating in a depending vertical portion, said right angle vertical portions serving to space the first parallel vertical portions, an electromagnet having its axis horizontal midway between said iirst two vertical frame portions, said electromagnet having an iron core serving as a fastening means for the lower portion of said frame, said core ends engaging magnetic washers bearing on said frame right angle portions, a single fastening means securing in spaced position the upper ends of said irst vertical frame portions, an insulated contact carried by one of said latter vertical portions and being connected to the winding of said electromagnet, a wire pendulum mounted between said rst vertical frame portions and having at its free end a horizontal permanent magnet within the magnetic field of and the vertical axial plane of said electromagnet, an insulated flexible electric contact mounted on one of said rst vertical frame portions for making electrical contact with said pendulum at an intermediate point thereon when it is in a generally vertical position, said contact being connected in series with said elcctromagnet winding, and a dry cell mounted between the terminating vertical portions of said frame.

References Cited in the le of this patent UNITED STATES PATENTS 1,647,858 Dunham Nov. l, 1927 1,688,826 Nachod Oct. 23, 1928 2,583,741 Kiler Jan. 29, 1952 2,598,954 Wengel `'fune 3, 1952 FOREIGN PATENTS 99,467 Germany Sept. 13, 1898 677,304 France Dec. 9, 1929 1,034,804 France Apr. 15, 1953

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