US181162A - Improvement in spring-cradles for children - Google Patents

Description

J. R. FRAWLEY & W. R. H. EvisToN.

SPRING-CRADLES FOBv CHILDREN.

No. 181,162. Patented Aug. 15, 1876'.

u'mnmmlfimm u g N-PETER3, PHOTO-LITHUGRAFHER. WASHINGTON D C rrsn STATES PATENT QFFICE. 1

JOHN R. FRAWLEY AND WILLIAM R. H. EVISTON, MILWAUKEE, WIS.

IMPROVEMENT IN SPRlNG-CRADLES FOR CHILDREN.

Specification forming part of Letters Patent No. 181,162, dated August 15, 1876 application filed October 22,- 1875.

To all whom it may concern:

Be itknown that we, JOHN R. FRAWLEY and WILLIAM R. H. EVISTON, of Milwaukee, in the county of Milwaukee, in the State of Wisconsin, have invented certain Improvements in Spring-Cradles, of which the followin g is a specification:

This invention relates to certain improvements in childrens cradles its object being to provide an easy and comfortable oscillating movement for the same, and to construct such cradles more cheaply and simply than heretofore.

Our invention consists in a cradle-body mounted directly upon a compound spring of peculiar construction, either adjustably or permanently, the said spring being secured to a suitable base. or supporting-frame, in such manner that an up-anddown oscillating motion may be readily imparted to it.

This class of cradles, as heretofore constructed, have proved objectionable, for the reason that the springs have been faultily constructed, rendering two or more of the same necessary to properly support the cradle, or, where one alone is used, rendering the construction of the cradle so'clumsy and the parts so heavyas to render it comparatively useless.

The drawing shows an elevation of our cradle as mounted upon a single spring with three bends or bows.

Our invention is specially designed to overcome these objections, and provide a cradle with a spring that will be light and cheap in its construction, and that can be operated with facility.

In the drawing, the letter A represents the base, stand, or supporting-frame of the cradle;

. B, the spring, and O the body of the cradle.

two outside bows being on one side, andjthe central bows on the other side, of the spring. The lower end of the spring is secured to the base A by means of screw-bolts or otherwise, and may be either permanently or adjustably' attached thereto, in the latter case slots being formed in the spring, through which the bolts pass. The other end of the spring is similarly attached to the cradle-body B.

As thus constructed, itwill be seen that the cradle has three springing-points-one at each bend or bow of the spring-thesprin g bending outwardly at the central bow, and inwardly at the outer bows, by means of which an easy.

and comfortable movement is given to the cradle, quite different from the jerking motion attendant upon the use of the springs heretofore employed in this class of cradles. By reason of the strain being thus distributed to three different points, it will be evident that the spring will be more durable, and able to resist a torsional action, and possess more resistency, than those heretofore employed. Besides, in such cradles, constructed with a spring having a single bend, in order to get sufficient elasticity it is found necessary to exbe made of very thin metal, without support- I ing it with additional springs.

We are aware of the patent granted to R, W. Caldwell May 12,1874, for improvement in cradles, and we disclaim everything therein shown.

Having thus described our invention, what we wish to claim, and desire to secure by Letters Patent, is

In combination with the cradle-body and the base or stand, the compound spring B, constructed with the three bends or bows, as herein shown and described.

JOHN R. FRAWLEY. WILLIAM Witnesses:

J. B. SMITH, A. SCHATTENBERG.

a. H. EVISTON.

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