US837040A

US837040A - Locomotive toy.

Info

Publication number: US837040A
Application number: US31020306A
Authority: US
Inventors: David P Clark
Original assignee: D P CLARK AND Co
Current assignee: D P CLARK AND Co
Priority date: 1906-04-06
Filing date: 1906-04-06
Publication date: 1906-11-27
Anticipated expiration: 1923-11-27

Description

No. 837,040. i PATBNTED NOV. 27, 1906. D'. P. CLARK.

LOCOMOTIVE TOY.

APPLICATION FILED APE. 6. 1906.

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' UNITED STATES PATENT OFFICE.

DAviD P. CLARK, or DAYTON, OHIO, AssiGNoR To D. P. CLARK AND COMPANY, OF DAYTON, oHio, A CoPARTNERsHiP.

LooolvloTlvE TOY.

Specification of Letters Patent.

Patented Nov. 27. 1906.

" Appimaonsiei Apriiengo. sefmiiio. 310,203.

To al@ whom it 71cm/ concern;

Be it known that I, DA'viD 1). CLARK, a citizen of the United States, residing at Dayton, in the county of Montgomery and State'of Ohio, have' invented certain new and useful Improvements 'in Locomotive Toys, of which the following isa specification, reference being had therein tothe accompanying drawings.

This'invention relates to V'certain new and useful improvements in locomotive toys wherein an inertia-wheel is 'utilized to propel thetoy.`

The specialV objects in view are essentially twofold: first, toprovide for using an' inl ertia-wheel whose radius is greater than that of the ground or driven wheels, which obj ect is carried out by mounting the driven or ground wheels on stud-shafts, whereby the space between'the centers Aof the opposite wheels '1s unobstructed vand the inertia-wheel may be extended into such space, and, second., to provide means for forcing thej inertia-shaft tightly against the surface or surfaces to which its motion 'is transmitted ,yet without creating undue friction between the inertiashaft and the means employed to so force itj,

l which obj ect is carried out by means of pres,-

. pointed out in the claims.

sure devices adapted to be pressed upon by the hand and having antifriction-rollers be;- tween them and the inertiaeshaft, all as hereinafter more clearly described, and particularly In the accompanying'drawings, Figure i is a side elevation of my improved locomotive toy, showing the invention embodied in one form or. arrangement of frame and wheels Fig. 2, a longitudinal sectional view through the frame,`showing the wheels in side elevation; Fig. 3, a transverse sectional view of the frame, showing the inertia-wheel also in section except as to its shaft; and Fig. 4, a horizontal sectional view of the frame, showing the several wheels in plan view.

The numeral l designates a frame for such type or character of toT as is to be propelled by the wheels and their arrangement, no'w to be described. For instance, the toy may embody a locomotive proper, an automobile, fire-engine, or a hook-and-ladder, while the propellincr means will be in either case that now to x'be set forth. In this frame are mounted the ground-wheels 2, each upon its 5 through the axis of the opposite wheels.

own stud-shaft 3, 4which is held in the frame and extends through, but not essentially beyond, the wheel. Thefirst result of this is that Ithe space between the wheels upon opposite sides of theframe is left free and. unobstructed, so vthatwhile the ground-wheels are properly mounted and the frame duly supported the space between the wheels upon opposite sides is left free tO be utilized, not by an obstructing orvfunctionless shaft or axle, but by the active element composed of the inertia-wheel 4. By

jthisarrangement the inertia-wheel canbe extended in diameter,'and consequently in heft and effectiveness, beyond- .a line passing This proportionately enlarged inertia wheel will continue its momentum longer than in the case of an inertia-wheel contracted within the llimitsof the space between the axles ofthe ground #wheels 'and then the distribution 'fof they gross weight of theinertia-wheel by this arrangement may be made more effective Aby utilizing such'weight in the exten-y 's'ion ofthe diameterof the inertia-wheel.

Thus carry into e'ect the first object of my inventio`n"that is, the utilization of la relatively large inertia-wheel compared with the distance' measured b the radius of the 'ground or driven whe s, and thus I combine together such increased or maximum diameter of inertia-wheel with what may be termed j ordinary-sized. ground-wheels.

The inertia-wheel is mounted on a shaft namely, by resting the shaft upon the periph-` eries of these ground-wheels-its location in this illustration being between the converging surfaces of the wheels on one side and the converging surfaces of the Wheels on the other side of the frame; but in order to force this axle hard down upon its bearing (in this instance the peripheries of these ground-wheels) I provide pressure devices consisting of slidable shafts 7, havin finger or thumb pieces 8 screwed or secure thereon and mounted to slide in slots 9 in the sides ofthe frame, so that these shafts 7 may have a range of movement to permit them to be forced toward the inertia-wheel shaft. The shafts 7 also carry antifriction-rollers 10,

IOO

IOS

which bear down on the roller-surfaces 6 of the inertia-wheel shaft, and thus transmit to siredto get up momentum in the inertia- Wheel. In this case the toy is taken in the hand, pressure by the fingers is applied to the pressure devices, and at the same time the ground-wheels are run on the floor or other surface in short strokes, as by placing the wheels on the iioor and pushing the toy a foot or two, then raising it and reapplying it to the-floor and pushing it over the same course, this being done several times until the speed developed in the ground-wheels is transmittedto the inertia-wheel in an accelerated degree, due to the excessive diameter of the ground-wheels compared with the diameter oftheinertia-wheel axle. When the inertia-wheel is put under high speed, the toy isplaced upon the floor or other surface, and by the momentum of the inertia-wheel itis driven smoothly, but strongly, and for a considerable distance or time and is capable of climbing inclines or .hills. The pressure of the inertia-wheel axle upon the groundwheels insures practically all of the motion of these wheels ywhen starting the device, as stated, being transmitted to the inertiawheel; but then when the `toy is running along the pressure devices cause little or no friction to be overcome by the inertia-wheel because of the presence of the antifriction-rollers lOin contact with.theroller-surfaces,6, and in the act of getting up speed in the inertia-wheel these antifriction-rollers l0 also prevent the retarding of the inertia-wheel while the speed is being so developedv in it.

Thus it will be seen that I have provided a vlocomotive toy in which it maybe saidthat the maximum of results is obtained-that is, a toy in which the maximum size of inertiawheel can be used in comparison with the size of the ground-wheels, while a great deal of pressure can be given the inertia-wheel to force it to take up practically all of the motion of the ground-wheels in the act of developing momentum in the inertia-wheel, and at the same time the` pressure devices are prevented from unduly obstructing thel inertiawheel, either when developing momentum `in it or. when using it to run the toy, by undue frictional contact therewith.

Having thus fully described my invention, what I claim as new, and'desire to ysecure by Letters Patent, is-

l. In a locomotive toy, the combination, with a suitable frame, its ground-wheels, and stud-shafts on which they are mounted, of an inertia-wheel mounted to transmit its momentum to said ground-wheels and extending into the space between opposite stud-shafts, and vpressure devices slidably mounted on said frame and adapted to bear upon the inertia-wheel shaft when its momentum is being developed.

2. In a-locomotive toy, the combination, with a suitable frame, its ground-wheels, and stud-shafts on which they are mounted, of an inertia-wheel whose shaft is mounted on the converging surfaces of two adjacent ground- `wheels andwhich extends into the space between opposite stud-shafts, and pressure devices slidably mounted on said frame and adapted to `be forced down to Vbear upon'the inertia-wheel shaft to increase its pressure upon the ground-wheel surfaces.

3. In a locomotive toy, the combination, with a suitable frame, and its ground-wheels, of an inertia-wheel mounted to transmit its momentum to the ground-wheels, and pressure devices slidably mounted in the frame adapted to be forced down upon the inertiawheel shaft.

' 4. In a locomotivetoy, the combination, with a suitable frame, and its ground-wheels, of an inertia-wheelhaving its shaft mounted on the peripheries of the ground-wheels, and pressure devices consisting of shafts slidably mounted inthe frame and having fingerpieces and antifriction-rollers, thelatter to engage with the shaft of the inertia-wheel.

' 5. Inalocomotive toy, the combination, with Aa suitable frame,its ground-wheels, and stud-shafts on which they are mounted, of an inertia-wheel having its shaft mounted on the peripheries of the 'ground-wheels, and pressure devices consisting'of shafts slidably mounted in the frame and .having fingerpieces and antifriction-rollers adapted to bear on the shaft of the inertia-wheel.

In testimony whereof I affix my signature in presence of two witnesses.

I -DAVID .R CLARK- Witnesses:

RUDOLPH MonAvA, CHARLES A.1 B RQWN.