US99765A - Improved spring bed-bottom - Google Patents

Description

UNITED STATES PATENT FFICE.

CHARLES H. DUNKS, OF DETROIT, MICHIGAN.

IMPROVED SPRING- BED-BOTTOM.

Specification forming part of Leiters Patent No. 99,765, dated February 15, 1870.

To all whom it 'may concern:

Be it known that I, CHARLES II. DUNKS, of Detroit, in the county ot' Wayne and State of Michigan, have invented a new and useful Improvement in Spring Bed-Bottoms; and I do declare that the following is a true and accurate description thereof', reference being had to the accompanying drawings,and to the letters of reference marked thereon, and being a part of this specification, in which- Figure l vis an elevation, showing my im` proved method of attaching a coiled spring to a metallic transverse bar in a spring-bed, and Fig. 2 is an enlarged detail of the same.

Similar letters of reference indicate correspondin g parts in each figure.

The nature of this invention relates to an improvement in the method of connecting together coiled springs and metallic transverse bars in the construction of spring bed-bottoms 5 and consists in the peculiar manner of inserting the points of the springs through corresponding holes in said bars to accomplish the purpose designed, and in the intcrposition of an elastic gasket or packing between the spring and the bar, for the prevention of noise in the bed when the same is occupied.

In the drawings, A represents a bar or slat, two or more of which are transversely between the side rails of the bed to support the elastic superstructure. B are springs, coiled in the form of cones, and are secured to the crossslats A by means of staples embracing their lowermost convolution, and driven into said slats. The upper end of the wire, from which each spring is formed, is turned vertically downward, forming a hook, a.

C is a cross-bar, preferably of spring-steel, placed between the upper convolutions ot' the springs, and is lirmly held in place by the hooks a passing down through holes properly disposed in said bar, which will be more securely held in place if the hooks n be alternately inserted through the same from opposite sides thereof', as shown.

b is a gasket or packing of sheetrubber or other suitable fabric, interposed between the springs and the cross-bar at their points of connection, which prevents any rattling or rubbing ot' the two metals together when weight is imposed on the longitudinal slats, which form the superstructure of the bed-bottom.

I am aware that npholsterers springs have their points turned over a little, to prevent them from tearing their covering; and, while I expressly disclaim the turning of the point of the spring for such purpose,

What I do claim as myinvention, and desire to secure by Letters Patent, is

The spring B, having its point a. turned vertically downward, and provided with packing b, in combination with the bars C and A, when each of said parts is constructed as shown and described, and all are arranged to operate as and for the purposes set forth.

, CHARLES H. DUNKS.

Witnesses H. F. EBERTs, H. S. SPRAGUE.

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