US459708A

US459708A - Soren christian lund and laueits johanes lauritsen

Info

Publication number: US459708A
Authority: US
Publication date: 1891-09-15
Anticipated expiration: 1908-09-15

Description

(No Model) S. 0. LUND & L. J. LAURITSEN.

CRADLE.

No. 459,708. Patented Sept. 15, 1891.

UNITED STATES PATENT OFFICE.

SCREN CHRISTIAN LUN D AND LAURITS J OHANES LAURITSEN, OF WOBURN, MASSACHUSETTS, ASSIGNORS OF ONE-THIRD TO JOHANNES E. LUND, OF

SAME PIJACE.

CRADLE.

SPECIFICATION forming part of Letters Patent No. 459,708, dated September 15, 1891. Application filed March 24, 1891. Serial No. 386,196. (No model.)

To all whom it may concern.-

Beit known that we, SoREN CHRISTIAN LUND and LAURITSJOHANES LAURITSEN, of Woburn, county of Middlesex, State of Massachusetts, have invented certain new and useful Improvements in Cradles, of which the following is a specification.

The object of our invention is to provide for automatically rocking or swinging the cradle.

To this end our invention consists in combining with a swinging or rocking cradle an actuating-spring, a crank rotated by said spring, and springpitmen connecting the cradle and crank, all as will be hereinafter described with reference to the drawings, and then pointed out in the claims at the close of the specification.

In the drawings, Figure l is a side elevation, with parts broken away, of a cradle and its supports, having our invention applied thereto. Fig. 2 is a view in elevation of a part of Fig. 1, looking from the right in Fig. 1. Fig. 3 is a View in transverse section of the parts shown in Fig. 2.

In the drawings, Ais a suitable sustaining frame-work, having uprights or standards D, provided with bearings tfor the pointed ends a: of the bent supporting-arms C, by which the cradle B is supported. \Ve have shown the cradle B supported in the manner described; but it will be obvious that the said cradle 13 may be supported in any other suitable known manner without involving a departure from the spirit of our invention. Thus the cradle B may be supportedon rockers in a wellknown way. Ct is a spring, which is utilized for the purpose of swinging or rocking the cradle 13. This spring is coiled around the rod or spindle c, the said rod or spindle being suitably journaled in the frame-work, and the spring has one end connected, as at b, with the frame-work and the opposite end connected, as at b, with the rod or spindle c. The rod or spindle is squared at one end for the application of a key for use in winding up the spring. 011 one end of the rod or spindle c is mounted a gear (1, meshing with a pinion e on a short shaft or spindle f, which also carries a gear-wheel g in mesh with a pinion h on a short shaft or spindle 'i, the shafts or spindles f i and adjacent end of the rod or spindle 0 being suitably journaled in plates 3 .9 applied to one of the uprights D. On the shaft or spindle 'i is an arm is, having eccentrically connected therewith, as by a pin or screw Z, the inner ends of the pitmenmm, which at their outer ends are connected, as by screws n n, to the opposite sides of the cradle B. The arm 7t and its pin Z constitute a crank-arm which, when rotated from the spring through the intermediate gearing, will serve, through the pitmen on m, to rock or swing the cradle B. In order that movement may be given to the cradle B in an even and easy manner without shock or jar when the direction of the movement of the cradle is changed in its rocking or swinging, a yielding connection is interposed between the operating-crank and the cradle B-that is to say, a spring connection is employed. The pitmen m m consist of spiral springs, having straight inner portions or rods, whereby they are connected to the pin Z. The connection between the rod or spindle c and the gearwheel d, which latter is mounted loosely 011 the former, is by means of a ratchet-wheel 0, made fast to the shaft, and a pawl t, pivoted to the gear-wheel d and pressed into engagement with the teeth of the ratchet-wheel 0 by a spring g. This permits of backward rotation of the rod or spindlec when the spring is being wound up. The wire of which the spring a is formed, preferably, is rectangular in cross-section.

What we claim is- 1. The combination, with a cradle, of an actuating-crank, spring-pitmen m m, connecting said crank and said cradle, and an actuating-spring connected with said crank and serving to rotate the same, substantially as described.

2. The combination, with the framework having bearings 25, the arms C, having pointed ends 1;, and the cradle 13, of the spring-pitmen m m, the crank-arm 7c, the spindle c, gearing interposed between the said spindle and crank-arm, and the spiral spring a, substantially as described.

SOREN CHRISTIAN LUND. LAURITS JOHANES LAURITSEN. Witnesses:

J OH. NIoKoLsEN, JoHANNEs E. LUND.