US1490125A - Toy hotor - Google Patents

Description

April 15 1924. I

W. J. oLr-:ARY

TOY MOTOR Filed Aug. 6' 1918 Patented Apr. 151, 1924.

UNITED STATES PATENT omer..

WILLIAM .1. OLmnv, or MONTREAL, CANADA, assrs'non. yro innecesaria v. o'LnanY, ormon'rmsar., QUEBEC, canaria 'roy xoron.

lappneamm and August s, 131s. semi m. 248,607.

made a certainnew and useful Invention in Toy Motors, of which the followlng 1s a specification.

This invention relates broadly to motors and moreparticularly to toy motors.

The principal object of the present invention is an efficient toy motor economical to manufacture and characterized bya vibratiiw member to which is attached a transmission band of light material which is passed around a driving drum and with vthe free portion of the band between the drum and the vibrating member disposed at an acute angle relatively to the vibrating member. l

More specilically one embodiment of the present inventionl comprises an electrically operated buzzer with a rotating drum mounted adjacent the armature of the buzzer and with a light weight transmission band secured at one end of the said armature and encircling the driving drum with the other end anchored to a portion of the frame of the buzzer and with the parts so located that the transmission band leaves the armature at an acute angle.

A further object of the present invention is a. cheap eliicient and economica-l toy motor comprislng a buzzer with a relatively small drivin drum located close to the armature 0f the uzzer and with a light driving band extending around the drum and with a tensioning member which may comprise a. light coiled spring secured to the free end of the band to maintain the band in frictional engagement with the drum.

. A still further object of the present invention is to provide a to vehicle with a motor as specified and wit a source of ener to operate the motor, for example,` a smal dry battery, carried b the vehicle, and wherein provision is m e for disconnecting the source of ener from the motor to conserve the energy w en the vehicle has struck an impassable object, such as in bumping into the side of a wall, etc.

wili be apparent that thel present in-` vention may be embodied in constructions other than those specifically disclosed herewith and that other and further objects of the present invention will in part be obvious ture thereof removed.

art it has been' cusand will in part be pointed out in the specification hereafter wherein like parts are designatedrby like characters throughout the several figures of the drawings. j

Figure illustrates one form lof the present invention and shows the motor detached from any specific to v Fi re 2 shows t e motor attached to a vehic e toy, or more particularly an electric locomotive with the covering or superstruc- Heretofore in the to tomary to utilize smal sized motors carry: ing va field and a rotating armature and adapted to be supplied with current through a suitablecommutator. The high cost of such toys is largely due to the expense of the motor and in substantially all cases electric toys of this character cost several dollars.

Furthermore in view of the sliding contacts,

due to the' brushes on the commutator and vto the more or less complicated character of such motors, there is a liability of the motor being disabled by the rough usage to which toys are ordinarily subjected.

The present invention overcomes the didiculties of the known art by providing an efficient small motor, very cheap and economical to manufacture and of such construction 'as to stand rou h usa without being disabled and'which 1s provlded with a. very simple adjustment that enables the same motor to run eectually on either direct or alternating1 current so that toys may be driven by eit er battery or house currents. Referring now more particularly to Figure 1 of the drawings which illustrates the motor detached'from any particular toy, the main frame 1 which may be a punching from sheet metal is provided with openin 2 throu h which suitable rivets or screw solts may e applied for mountin the motor. This main breaker spring 9 which carries the armature 1 410. The breaker spring is secured to a portion of the main other securing means. ries a second binding st screw 11 which I is in direct contact wit the main frame in such manner that the main frame comprises the medium through which the current is leadto the breaker spring and to the spark gap. The foregoing construction is that of a well known signal buzzer and possesses no especial features of novelty except when in combination with the features herein after specified.

The main frame is provided with a U- l5 shaped extension 12 in which are formed the bearings for a driving drum 13. A- light weight transmission band 14 comprising a "linen ta or the like is secured to the armature of t e buzzer and preferably is wrapped 2v around the driving drum and with the ree `end of the tape attached toa coiled spring 15 which is anchored in one of the openin 'i 16 in the lug 17 extendingufrom the main frame It is to be noted t s lug carries a plurality. i of openings which constitute means for varying the tension on the spring,

l dependent on which o ning the spring is anchored in. This variation of the tension l' varies the speed of the motor. v.

The invention comprises more especially the combination of the old well known fbuzzer with a driving drum and a transmission band in such manner that when the armature of the buzzer is vibrated the drum *ll will rotate. This rotation is best secured by constructing the arts in such manner T e main frame car- \.that the transmission and or tape 14 leaves the armature 10 on an acute angle 29. The y#angular relationship between the transmission band and the armature causes a wh1pping motion to be imparted to the band and lgthis whipping motion is somewhat similar ,.-'to transverse shaking the end f a rope which is attac ed at the other end to a post. 46 Such a motion sets up in the transmission band both transverse and lon tudinal waves. These waves contacting wit the periphery of the driving drum cause the drum .7 to rotate toward the end of the band which 'yis connected with the armature. This in- 'jvention further contemplates thel construction and combination wherein the adjustment screw 8 for the spark gap may positioned in such manner that the vibrat 66 tion of the armature may be effected without openin the spark gap due to the elasticity l"o the reaker spring. Under such adjustment it will be obvious that the armature may be vibrated b'y supplying the electromagnet 3 with a pulsating current, forexample, the ordinary commercial alternatin muri-ent. It is likewise obvious that the hrmature may be vibrated b adjusting the spark gap in such manner t at the current is`broken each time the magnet is energized frame b suitable rivets or v lthe locomotive.

and under this condition the motor ma be operatd on a direit currert such as a a? teryo pro rvo anamlr` t will therefoip be seeanghat 'the ppraseagconstruction is adaptable for use on either type of current..

Referring now to Figure 2 the motor is shown as mounted upon the frame of a toy electric locomotive and the shaft 18 on which the driving drum'is mounted comprises the axle for the drivin wheels 19 of The frame a carries another pair of wheels 20 which support the other end of the frame of the locomotive. Preferably all these wheels areiianged and the thus may be constructed to run on toy rai s 21. `In this embodiment the frame `carries a small battery 22 which is connected with an insulated button 23 that isadapted to cooperate with a switch head 25 mounted on the end of a push rod 26 which is arranged to slide on the main frame 27 and is constructed so that when the switchY head is pulled into engagement with the insulated button the parts tend to retain thls position whereby one terminal of the battery is grounded to the main frame. Since one terminal of the buzzer is 'also connected to the main frame and the other terminal of the buzzer is connected directly with the battery it will be noted that the push switch must be closed in order that the current will flow through the electromagnet. When the current is flowi the buzzer o rates to drive the locomotive. If the bu er of the push switch contacts with an obstruction the switch 'will be opened and the current broken so that the battery is not discharged by o rating the motor after the to as struc an immovable obstruction. is is particularly desirable where the motor is uilt into to automobiles and similar constructions a ted to run over the carpet and to strike urniture or side walls of the room.l u.

In view of the extreme simplicity lof the present motor, and the fact that it is adapted for direct drive to toys, etc., without. using reduction gears, it is especiall adaptable for low priced toys and at the same u' time the to constructions are 'sim lied so that the li e of the toy is extend beyond that of the more complicated devices. In Figure 2 the adjustment screw for the spark break has been omitted and a permanent contact point 28 is provided on the contact plate 6. Where it is desired to run this toy` on an alternating current suitable shoes or trolleys are provided and one terminal of the buzzer is connected to the insulated butg ton and the other terminal is connected to thetrolley or third rail so that the current may be introduced through the track into the main frame of the device and from the main frame through the insulated button to 3 the buzzer wheneasthe return circuit forA its force quickly and the tension of the ar-v mature spring tends to snap the armature back quicker than the movement thereof during the power or ull stroke. There 1s another element whic tends to -make the power stroke the slower movement of the transmission band, and that is, that as the band is graduall pulled taut the resistance to the pull of t e amature graduall increases. Whereas when the magnetic orces are on the decline a very little slack in the band is suicient to accomplish the release so that the releasing action Voccurs quicker than the power stroke. The above "specified action produces a continuous creepin action of the waves around the drum which is thereby continuously rotated.

I claim- 1. A device of the character described comprising in combination a driving drum, a transmission band encircling said drivin drum, a vibrating member directl connec to'said transmission band and orming an acute angle with said band on the side toward the drum, and means for vibrating said member in such manner that the power stroke which tensions the said band is slower than the return stroke which loosens the said band whereb the vibration of the said member causes the transmission band to rotate the drum.

2. A motor of the character specified comprising in combination a rotatln drum, a

transmission band encircling sai rotating drum, a vibrating member comprising the armature of a buzzer and to which said'band .is attached, means comprising the coils o n.

buzzer for causing the said member to vibrate the anglebetween said member and said band measured on the side in contact with the drum being an acute angle so that the vibration-of sai member sets up both a transverse and longitudinal movement in said band to reduce the waves in the band which cause t e band to rotate the drum.

3. A device of the character described comprising in combination a drum, a frame, a transmission band encircling said drum, an

armature to which one end of said band is directly secured, said armature being mounted on said frame to be capable of vibratory movement toward and from said drum, an

electromagnet adjacent said armature and adaptedl when suitably energized by a pulsating current to vibrate the said armature and to set up waves in the said transmission band, said band extending toward the drum at an acute angle to said armature whereby the vibration of the said armature produces both lon 'tudinal and transverse waves in the said and to drive the said drum.

4. A. motor comprising in combination a driving drum, a flexible transmission member encirclingea portion of' the drum, a vibrating mem r mounted upon a spring and movin toward and from said drum, one end of sai transmission member being connected to said vibrating means and extending from said means at an angle in a lane substantially at right-angles to the vi ration of sald means in such manner that the vibration of said means acts directly on the end of said band, and anchorin means for the other end of said band, sald angle being an acute angle toward the drum whereby the band is drawn moreclosely around the drum when the member moves away from the drum and is partially released from the lrum ywhen the member moves toward the rum.

WILLIAM J. OLEARY.

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