US237557A - Furniture-spring - Google Patents

Description

(No Model.)

M. H. LEARNA'RD.

Furniture Spring. I No.237 ,557.' Patented Feb. 8,1881.

NITED STATES MARTIN H. LEABNARD, OF DANVILLE, ILLINOIS.

FURNITURE-SPRING.

SPECIFICATION forming part of Letters Patent No. 237,557, dated February 8, 1881. Application filed December 31, 1880. (No model.)

To all whom it may concern:

Be it known that I, MARTIN H. LEARNARD,

I of Danville, in the county of Vermillion and State of Illinois, have invented certain new and useful Improvements in Furniture-Springs and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Figure 1 is a perspective view of one of my improved springs detached, and Fig. 2 is a view of a set of my improved springs secured in position.

Similar letters of reference indicate corresponding parts in both figures.

This invention relates to coiled springs for beds and for upholstering purposes; and it consists in providing such springs with a peculiarly-shaped base-coil, which shall give thema firm support and prevent them from sagging or tilting over, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A represents one of my improved springs, the body of which, B, is of the usual and well-known conical spiral form.

The bottom or base coil, 0, is made rectangular in shape, as shown, and sufficiently large to form a firm and solid support for the spring. When the latter is adjusted in its proper position, as shown in Fig. 2, staples D are driven at the angles of the base-coil, thus precluding any possibility of its sagging or tilting over, or becoming otherwise displaced.

When a suitable number of my improved springs have been adjusted in an article of furniture, I prefer to connect the upper coils of each section of four springs by coiled springs E, arranged diagonally across each other and hooked or otherwise secured to the upper coils of the springs A, to which increased stability is thus given without interfering with their elasticity.

I am aware that a furniture-spring having an elongated or elliptical base-coil is not new, and such I disclaim. A rectangular base-coil, as herein shown, not only renders a firmer support, but is also capable of being more securely attached by staples driven at its corners.

Having thus described my invention, I claim and desire to secure by Letters Patent of the

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