US761058A - Suspension-cradle. - Google Patents

Description

No. 761,058. PATEN'IED MAY 31,1904.

' E. A. BRADBURY.

SUSPENSION GRADLE.

APPLIQZATIOH FILED SEPT. 16, 1903.

H0 MODEL.

UNITED STATES Patented May 31', 1904.

P TENT OFFICE.

EUGENE BRADBURY, OF CANON CITY, COLORADO, ASSIGNOR OF ONE- HALF TO GRANT DICKINSON,

OF CANON CITY, COLORADO.

SUSPENSION-CRADLE.

SPECIFICATION forming part of Letters Patent No. 761,058, dated May 31, 1904.

I Application filed September 15, 1903. Serial No. 173,302, (No model.)

To all whom it may concern: i

Be it known that I, EUGENE A. BRADBURY, a citizen of the United States, residing at Canon City, county of Fremont, State of Colorado, have invented certain new and useful Improvements in Suspension-Cradles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to swinging cradles and the like, and has for its object to provide an elastic suspension between the body and the supporting-standard so applied that the body may be swung in either a longitudinal or a transverse direction with a gentle and easy movement entirely free from shocks or er rs.

To this end the invention comprises a body swung from a supporting-standard by means of spiral springs or equivalent elastic suspension devices, each of which is attached to opposite points on the cradle-body and to a single point or support on the standard, so that said springs extend downwardly and inwardly from said points of support. In order to compensate for any tipping action due to the occupant moving to one side of the central line, additional springs are attached to the ends of the body, the ends of said springs being secured to opposite sides of the body and the middle points having sliding connection with suitable supports on the standard, so that by pulling said springs through the supports additional tension is placed on that portion of each spring which supports the surplus load. Additional springs connected to the lower side of the body and the lower portion of the standard serve to prevent sidewise tipping and add to the regularity and evenness of the swinging motion.

In the accompanying drawings, Figure l is a perspective view of my improved cradle. Fig. 2 is an end view thereof.

Referring to the drawings, 1 represents the body of the cradle, which may be given any desired form. Said body is suspended in a supporting-standard of any approved type, but which for strength, stability, and cheapness is preferably constructed of iron pipe sections and pipe-fittings, as illustrated, 2 2 indicating the end-uprights, which are secured to the bottom horizontals 3 3 by T-couplings and are connected at the top by longitudinal pipe-section 5. Casters or rollers 4, mounted in the ends of the bottom pieces 3, permit the cradle to be readily moved from place to place.

The distance between the uprights 2 2 is somewhat greater than the length of the cradle-body 1 to permit the latter to have a limited longitudinal movement as well as a lateral oscillation when it is suspended from the supporting-standard.

The suspension devices consist of coiled springs 6 6, each of which is attached at its ends to hooks 12 or other suitable connectors located at opposite points on the body 1, preferably at the corners thereof, and the middle portion of said spring is passed through and supported in eye 8 or equivalent hanger on the upper part of upright 2. The spring 6 at the head end of the cradle is preferably stronger than the corresponding spring at the opposite end in order that the head end may be slightly elevated under normal conditions and also to prevent said end from sagging when the child occupies the upper portion of the cradle. It will thus be seen that the suspension-springs extend diagonally downward and outward from the supportingeye 8 to the points of connection with the body at the sides whereby much freedom of movement of the body is permitted, and yet all of the advantages of a pivotal suspension of the cradle at its ends is maintained. It will also be seen that the suspension-springs extend longitudinally with respect to the body of the cradle from its ends to the uprights and that thetension of the springs combined tends to hold the body normally in a central position between the uprights, butallowsit to swing laterally as well as longitudinally.

In order to further steady the oscillations of the body 1 to compensate for any tendency to overbalance and to restore the body to level equilibriumas, for instance, when the occupant moves to one side or the other Springs 1O 10, each attached by one end to a lower corner of the body 1 and at the other to a collar 11 on the upright 2, serve to fur-.

ther steady the swinging movement of the body and prevent the latter from tipping or turning over.

I Having thus described my invention, what I claim is 1. Ina swinging cradle, the combination with the body and a supporting-standardtherefor, of suspension-springs between the ends of the body and the standard, each of said springs being attached to opposite points on the sides of the body and to a common point on the standard centrally of the body,

and auxiliary suspension-springs each having a fixed connection at oppositepoints on the sides of the body, and an adjustable connection with acommon point on the standard centrally of the body.

2. In a swinging cradle, the combination with the body and a supporting-standard therefor, comprising a vertical upright at each end, ofvsuspension-springs between the ends of the body and the respective uprights, each of said springs being attached to opposite points on the upper sides of the body, and extending diagonally upward and inward to a common point on its upright centrally of the body, and steadying-springs extending upward from the lower part of the uprights and attached to the body at opposite points at the lower sides.

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

' EUGENE A. BRADBURY. Witnesses:

J. P. CHAPMAN,

WM; E. ROBERTSON.

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