US1231078A - Motor-oscillated crib. - Google Patents

Description

W. F. SILL & l. M. FELDHAUS. MOTOR OSCILLATED CRIB. APPLlcATloN min DEc.23. |916.

1,231,078.- Pateted June 26, 1917.

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WILLIAM F. SILL AND JOI-IN M. FELDHAUS, 0F ST. LOUIS, MISSOURI;

IVIOTOR-OSCILLATED CRIB.

l Specification of-Letters Patent.

PatentedJ une 26, 191'?.

Application filed December 23, 1916. Serial No. 138,645.

To all whom it may concern:

Be it known that we, WJ'LLIAM F. SILL andv JOHN M. FELDHAUS, citizens of the United States, residing at St. Louis, in the county v offSt. Louis and State of Missouri, have invented certain new and useful Improvements in Motor-Oscillated Cribs, of which the following is a specification, reference being had of the crib may bevreadily controlled andk regulated. p

@ther objects` willa-ppear in the course of the following description. l

Ourinvention i's illustrated in the accompanying drawings, wherein-.-

Figure 1 is a front elevation of the crib, the motor compartment being broken away to show the motor;-

Fig. 2' is a section on the line 2 2 ofy Fig. 1; f y

Fig. 3 is aside elevation of-'the speed controlling device, the shaft beingy shown in section;

Fig. 4 is a perspective view of one of the tracks .on the bottom of' the crib andthe adjacent-end of the connecting rod;

Fig. 5. is a perspective. view of. the. cam for operating the speed controlling device.

Referring to. these figures. it f will bey seen that our improvedjcribincludes a base designated generally 10, the basebeing supportedy uponzlegs 11.*y and 'having the oppositelydisposed upwardly7 extending. standards 12 which-.may be made? of anyy desired-'ornamental: design. Mounted .between thestandards isfthe cribproper designated 13 andA having atits= .ends the outwardly extending pivotsy 14 engagingjournal; bearings 115; mounted;

upon the standards. The crib may be 0f any ornamental form or configuration and, as illustrated, is about 18 inches deep and any desired width. Disposedabove the base 10and inclosed-within a suitable casing 16 is a spring motor. This spring motor is designed to takel up half the length of the casing 16, the other half' of the length of thecasing forming a compartment which may constitute a wardrobe'forinstance, this half of the casing'beingV closedby a door 17. The

motor, as before stated, is contained within the other half of'the-ca-singandthe motor compartment is closed by a door 18, these doors beingA hinged tothe end walls of the casing. 1

The motor for rocking the crib comprises a shaft 19 supported in suitable bearings 20 and surrounding one endv of this shaft isl a drum 2l, this drum being rotatably mountedr with'relation tothe shaft and inclosed within the drum' is a coilspring 22, oneend of which is attached to the shaft and the other end of'which is attached tothe drum. Thedrum isprovided upon its exterior face at its center with an outwardly projecting hub 23 formed with teeth uponits extremity for engagement with a crank handle. The periphery ofthe drum is also formed with notches 24E and a spring pawl 25 suitably mounted engages these notches and prevents a reverse rotation of thev drum. It will be obvious now th'ata rotation of the drum in one directionwilf'l windlup'the spring andv that a reverseV rotation of the drum will be prevented bythe spring -pawl 25. EXtend ing {parallel to the shaft 19 is a counter crank shaft-26 having thereon the cranks 27 and 28; This crankshaft is mounted in suitable bearings 29- A. relatively large gear wheel I 30 is mountedupon the'shaft 19 and engages with a relatively small gearwheelf31 mounted'upon the crankshaft 26. It will be obvious, therefore, that the rotative power of thespring will be transmitted to the counter crank shaft. The cranks 27 and 28'carry uponthemth'e connecting rods 32, theseconnecting rods extending upwardand carrying at their upper ends the pairs ofi rollers 33 which engage with tracks 34 mounted upon the-undery side'ofthe/ crib proper-13. It will' thus be obvious that a rotation of the shaft 26 will cause an oscillation of the crib and that the rapidity of this oscillation will depend upon the speed of rotation of the crank shaft. For the purpose of regulating the speed of rotation of the crank shaft and, therefore, the speed of oscillation of the crib, 1 provide a controller which is adapted to be operated or regulated from the exterior of the casing within which the motor is disposed, this controller comprising oppositely disposed members 35 and 36 pivoted or bolted to each other atl one end, these members being preferably of wood. These members extend on each side of the crank shaft and are formed with semi-circular seats 36a which embrace the crank shaft. These seats are preferably lined with rubber or like material. Passing through the free ends of the members 35 and 36 is a rod 37 and disposed on this rod are the springs 372L which bear against the free ends of the members 35 and 36 and resiliently force them against the crank shaft. These members 35 and 36, therefore, act as brakes impeding the rotation of the crank shaft to an extent depending upon the strength of the springs and the frictional engagement between the members 35 and 36 and the crank shaft. For the purpose of regulating the amount of this frictional engagement we provide a cam 38 formed upon a rod 39 or shaft which shaft passes between the members 35 and 36. The shaft is formed with la crank handle 4.0 whereby it may be rotated. 1t will be obvious now that when the cam is rotated in one direction it will permit the springs 37a to force the members 35 and 36 with considerable braking power against the shaft and thus prevent the shaft. On the other hand, when the shaft 39 is rotated through a quarter of la circle it will entirely lift the members 35 and 36' from engagement with the crank shaft and the crank shaft will rotate unimpeded. Vhen the cam shaft 39 is rotated partially it will partially separate the members 35 and 36 and they will then only partially impede the rotation of the crank shaft. Thus it is possible to entirely regulate the speed of oscillation of the crib. The end of the casing within which the motor is -inclosed may beprovided with a scale over which the crank handle 40 will operate so.

that the speed brakes may be adjusted with considerable nicety.

The operation of this invention will be obvious from what has gone before. Assuming the spring is wound up, then upon releasing the members. 35 and 36 from their engagement with the crank shaft, the spring will cause the relatively slow rotation of the shaft 19 and the relatively more rapid rotation of the shaft 26 and the oscillation of the cribi By regulating the speed, the oscillarotation of the y rtion may be very gentle or it may be made more rapid as desired.

The cranks 27 and 28 are disposed in opposite relation and it will be obvious that upon a rotation of the crank shaft, each one ofthe connecting rods 32 will move in a path having a vertical component and a slight horizontal component. For instance, assuming that the shaft 26 is rotating in a counterclockwise direction then the connecting rod 32 at the righthand of Fig. 2, will move upward tilting or swinging the crib upon its pivot and moving along the slotted track 34k toward the outer end of the track. As the crank moves over to the lefthand side of Fig. 2, the roller of the connecting rod will travel back along the slot until the crank commences to move downward, when the pull will be directed downward and shift the crib in the other direction. The purpose o-f connecting the crib to the crank shaft by means of connecting rods having rollers moving in slots is to provide for a relatively gentle movement of movement of the crib changes.

While we have illustrated the construction Y which we have found to be very practical and which may be made very ornamental, yet it is obvious that many modifications might be made in this device without'departing from the spirit of the invention.

Having described our invention, 'whatwe claim is: v

1. The combination with a swinging crib, of a motor, a shaft operatively connected to the motor and having 4oppositely disposed cranks, connecting rods extending from the crank shaft to the crib, the adjacent ends of the connecting rods having sliding engagement with the crib.

2. The combination with a swinging crib, of means for oscillating the crib comprising a crank shaft having'oppositely disposed cranks, connecting rods extending from the cranks to the crib, and having rollers, and transversely extending tracks on the crib with which the rollers engage.

3. In a structure of the character described, verticallyy extending standards, a crib disposed between said standards and having trunnions operatively supported by the standards, the trunnions being disposed above the bottom of the crib, transversely extending tracks on the bottom of the crib, a motor driven crank shaft, and connecting rods. pivotally connected to the cranks of said shafts and having sliding engagement with said tracks.

4L. The combination with an oscillatory crib, of a spring motor therefor comprising a, shaft, a driving spring operatively connected to the shaft, means for winding up the spring, a crank shaft, means for driving the crank shaft from the motor shaft, our signatures n the presence of tWo Witconnectlng rods extendlng rom the Crank nesses.

shaft, rollers carried upon the outer ends WILLIAM F. SILL. of the connect-ing rods, and tracks on the JOI-IN M. FELDHAUS. bottom of the crib with which said rollers I/Vitnesses: engage. FREDERICK IVOLKE,

In testimony whereof We hereunto affix CHARLES H. GARTHE.

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

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