US 1269018 A
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Description (OCR text may contain errors)
ROBERT L. STEVENS, F ALBION, MICHIGAN, ASSIGNOR T0 NATION L SPRING & WIRE COMPANY, 0F ALBION, MICHIGAN A CORPORATION OFM CHIGAN.
Specification of Letters Patent. Patented June 11, 1918.
Application lcd December 2, 1916. Serial No. 134,559.
To all whom it may concern Y Be it known that I, ROBERT L. STEVENS, a citizen of the United States of America, re-
' siding at Albion, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Cushions, of which the following is a specification, reference being had therein to the accompany ing drawings.
The invention relates to cushions of that type in which a series of springs are arranged in individual pockets formed in a fabric strip and are thereby held from metallic contact with each other and also are re tained from lateral displacement. It is the object of the present invention to obtain an improved construction in which the pockets are separate from each other but are lconnected at their outer ends by attachment to a common fabric strip. The springs are also retained from displacement by anchoring their inner ends to a metallic frame, thereby obtaining greater security and flexibility, while retaining the advantage of noiselessness under actlon. f
In the drawings:
Figure 1 is a perspective view showlng a section of a cushion spring of my improved construction;
Fig. 2 is an elevation illustrating the manner of attaching the individual pockets to the common securing strip;
Fig. 3 is a section on line w-w Fig. 1.
` As heretofore constructed, it has been customary to form the fabric pockets by cross-stitching together two strips of fabric, the spacing of the lines of cross-stitching being such as to produce therebetween when expanded a cylindrical pocket of the desired dimension. When springs are inserted in these pockets they are held lin relation to each other solely by the fabric. With my improved construction I dispense with this fabric securing means between adjacent sides' of the pockets and form the latter of separatev tubes. These may either be formed of separate blanks of cloth or they may be formed from a continuous 'strip which is stitched longitudinally to form a tube and is tubular pockets. B is a fabric' Strip formed` of one or more plies of the fabric, and this strip is stitched to the ends of the tubes A A', etc., as indicated along the line C. The end portions of'the pockets are preferably slightly overlapped upon the strips B, ras indicated at D, thereby forming a firmconnection with each other. E are the coil springs, which are inserted in the pockets, and F is a metallic strip to which said springs are attached, preferably by struck-out tongues G which embrace the .base coils of the springs at diametrically opposite points. The'strips B may be assembled in a suitable base frame (not shown), and when thus assembled all of the springs will besecurely anchored at their inner ends. slipped over the springs and the connecting strip B will form a securing means for the outer ends of the pockets, as well as forming a closure for the ends of the pockets and a multi-ply covering therefor.
In use, the pockets being free from each other will impart a somewhat greater flexibility to the springs and will also eliminate a degree of stress and Wear vupon the fabric itself. On the other hand, the strip B which and 'a fabric strip stitched to the flattened outer ends of said tubes forming a connecting tie therebetween extending over the ends of the pockets.
2. In a cushion. the combination with a series of springs, of a fabric covering therefor, comprising a series of separate fabric tubes for engaging the and a multi-ply fabric strip stitched to the respective springs?V The fabric tubes are then number of plies of g et-tenec outer ends of said tubes mici 1101- meiiy lying in a,- pime transverse to the exis of the springs at the ouei' ends thereof.
3. ii a cushion, the combilmtionjwith a, series of sp1-ings, of means forv engaging and securing 'the'inner ends of Said springs, a fabric covei'ing comprising e series of ndividilai fabric tubes epee et their inner ends mesme for engaging the iespect-ive springs, and a fabric strip stitched to the attened outer Il ends of said tubes forming a. closure for the pockets and a Het tie extending in piene erensverse to the exis of the springs.
n testimony whereof I affix my signature..
' RGBERT L. STEVE-Ne.