US313707A

US313707A - Rocking-chair attachment

Info

Publication number: US313707A
Authority: US
Publication date: 1885-03-10
Anticipated expiration: 1902-03-10

Description

(No Model.)

` W. I. BUNKER.

ROGKING CHAIR ATTACHMENT.`

D30. 313,707. EQQpjQMar. 10, 1885.

usiiillmunll j WILLIAM I. BUNKER, OF CHICAGO, ILLINOIS.

ROCKINGMCHAIR ATTACHMENT.

SFIIECIFICATION forming part of Letters Patent No. 313,707, dated March l0, 1885.

Application led May 3, 1884. (No model.)

fo al?, whom, t may concern:

Be it known that I, WILLIAM I. BUNKER, ofthe city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rocking Chair Attachments, of which the following is a specification.

My invention is designed to furnish a rocking-chair attachment which is so connected to the parts of the chair that the spring is compressed instead of being extended as the rockers move back and forth on the base-rails.

In the accompanying drawings, Figure l is a front elevationof the attach ment applied to the chair. Fig. 2 is a rear elevation thereof detached; and Fig. 3 is a central vertical scction of the attachment, the rear section being l the one shown.

My improved attachment consists of a coiled spring, A, the ends of which are secured, respectively, within brackets B C. Bracket B, as shown, has two projecting `feet or tlanges, b, which are made long enough to reach the base rail of the chair, to which they are fastened by screws or in otherconvenient manner. Bracket C may have a flange, c, extending up between the portions-b b of bracket B, and connected to the rocker. The llanges b b c have lat faces,` which lie against the inside faces of the base-rail and rocker, from which it results that no side stops or flangcs, to keep the rocker in line upon the base are required.

From the foregoing description of this attachment it is apparent that the spring A will be compressed instead of being extended as the chair is rocked; and, in addition to its other advantages, a much lighter spring may be used with this form of attachment than is ordinarily employed with attachments now in common use, and especially in those where side stops arc not employed.

The form of the attaching-anges or" the brackets B C may be varied to suit the character ofthe chair, or for convenience of casting, without departing from the scope of my invention; and I do not, therefore, limit myself to the particular form of bracket here shown, the gist of my invention being the construction of an attachment for platform rockingchairs wherein the spiral spring of said attachment is compressed instead of being eX- tended by the rocking of the chair.

I claiml. As a new article of manufacture, an attachment for platform rocking-chairs, com' prising two attaching-brackets and a compressible connecting spiral spring, the bracket at the upper end of the spring having a downwardly-projecting portion or liangcs to be connected to the base-rail, and the bracket at the lower end of the spring having an upwardly-projecting portion or liange to be con VILLIAM I. BUNKER.

lVitnesses:

EPHRAIM BANNING, CHARLES C. LINTHICUM.