US416209A

US416209A - Rocking-chair attachment

Info

Publication number: US416209A
Authority: US
Current assignee: TRUCOOK Inc A FLORIDA Corp; Fidelity Federal Bank and Trust
Publication date: 1889-12-03
Anticipated expiration: 1906-12-03

Description

- (No Model.)

W. I. BUNKER.

ROCKING CHAIR ATTACHMENT} No. 416,209. Patented Den. 3, 1889.

. UNITED STATES PATENT OFFICE.

\VILLIAM I. BUNKER, OF CHICAGO, ILLINOIS.

ROCKING-CHAIR ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 416,209, dated December 3, 1889.

' Application filed June 28, 1887. Serial No. 242,797. (No model.)

To all whom it may concern.-

Be it known that I, \VILLIAM I. BUNKER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvem ent in Rocking-Chair Attachments, of which the following is a specification.

The object of my invention is to make a simple economical spring attachment for platform rockingchairs, in which the spring shall be compressed, instead of extended, by the rocking of the chair; and the invention consists in the features and combinations hereinafter described and claimed.

In the accompanying drawings, Figure l is a sectional elevation of one of the rockers and base-rails of a platform rocking-chair, showing my improved attachment secured to the inside thereof. Fig. 2 is a cross-section taken on line 00 of Fig. l, and Fig. 3 is a perspective view of the bracket shown in Fig. 1.

In the drawings, A is the rocker; l), the base-rail; O, the connecting-spring; c, an extended end portion thereof; D, a stud or bracket for securing the extended end portion of the spring to the rocker or base-rail; E, a slot in the end of the bracket, and c a nut forsecuring the extended end of the spring to the stud or bracket.

In constructing my improved attachment I make an open coiled spring of suitable dimensions and length, and preferably about two and a half inches long and substantially the same, or a little less, in diameter, the wire at one end of the spring being bent and extended upwardly or downwardly lengthwise of the spring and beyond its opposite end. The entire body of the coils is preferably above or below the line of contact between the rocker and based-ail, with the end nearest such line secured to the rocker or base rail by a bracket, and the extended portion of the wire at the other end of the spring passed through the body of the coils and attached to a bracket or stud 011 the opposite member of the chair. I have provided the end of the stud or bracket with a slot E, extending a sufficient distance therein, and have turned up the outer end of the stud or bracket.

The extended end of the wire 0 is preferably.

provided with screw-threads, and has a nut e screwed thereon. It is inserted into the slot in the end of the stud or bracket and the nut passed behind the upturned end, in which position it is held by the tension of the spring.

In all of the figures of the drawings I have provided for the attachment of one end of the coiled spring to an ordinary bracket, and have provided a stud or bracket in which the extended end portion 0 of the spring can be attached or detached by simplyinserting such end portion or wire in the slot adapted to receive it, and taken out by lifting the end portion out of such slot. By means of the nut shown on the extended end portion of the wire the tension of the spring may be regulated or varied at pleasure by screwing the same up or down.

I do not herein claim a compressible spiral spring which does not have an end portion extending lengthwise integral with its coils, a spring without an integral extension being covered by my application of July 23, 1887, Serial No. 245,071.

I have shown a nut for adjusting the tension of the spring, both in this application and in my application, Serial No. 245,071, filed July 23, 1887 5 but in this case the adjusting means are used in connection with a rod integral with the wire of the spring, and in the other they are used with a rod not integral with the wire of the spring, and I do not mean in either case to claim the construction shown in the other.

hat I regard as new, and desire to secure by Letters Patent, is-

1. I11 combination with the rocker and base rail of a platform i'ockingchair, a compressible connecting spiral spring having one end secured by a bracket to one part of the chair and the end portion of the wire extending from the other end of its coils lengthwise of the coils and secured to a stud or bracket on the other part of the chair, substantially as described.

2. I11 combination with the rocker and baserail of a platform rocking-chair, a compressible connecting spiral spring having one end secured by a bracket to one part of the chair and the end portion of the wire extending from the other end of its coils lengthwise of the coils and secured to a stud or bracket on the other part of the chair, and means for adjusting the tension of the spring, substantially as described.

3. In combination with the rocker and base- 5 rail of a plat-form rocking-chair, a compressible connecting spiral spring having one end secured by a bracket to one part of the chair; and the end portion of the wire extending from the other end of its coils lengthwise of the coils and detachably secured to a stud or To bracket on the other part of thechair and maintained in position therewith by the tension of the spring, substantially as described.

WILLIAM I. BUNKER.

\Vitnesses:

EPHRAIM BANNING, GEORGE 0. 000K.