US2025328A - Mattress and method of making the same - Google Patents

Description

. 24, 1935. E, L. sxomsmm 2,925,323

MATTRESS AND METHOD OF MAKING THE SAME Filed Sept. 18, 1955 fldv'ardzfiroms iery Patented Dec. 24, 1935 UNITED STATES PATET FFIE.

MATTRESS AND METHOD OF MAKFNG THE SAME 1 Claim.

It is an object of this invention to provide a mattress with a novel arrangement of edge rolls and boxing whereby the stitches forming the edge rolls are entirely concealed and the boxing is ren- 5 dered more durable and neat in appearance.

A particular object is to provide, on the inner surface of the boxing, narrow strips of inexpensive material arranged to be sewed to inner, top and bottom casing members to form corner rolls which are concealed within the mattress.

Another object is to provide an improved method of constructing a mattress wherein less precision is required in the operation of forming the edge rolls.

In the manufacture of my improved mattress, a boxing strip of the usual or suitable type has sewed thereto a pair of relatively narrow strips extending along the upper and lower edges. The free. edges of these strips are then secured to top and bottom inner casing sheets, leaving one side open, and then the body of filling material, which preferably includes a body of upholstery springs, is inserted in the inner casing and the latter is closed by sewing in the usual manner. As the next step, corner rolls are formed by manually stitching through the narrow strips, filling and top and bottom casing sheets, leaving the boxing proper or main outer boxing strip free to be extended upward in concealment of the roll stitches. 30 Top and bottom, outer cover members are now applied, together with suitable top and bottom padding, and the margins of the cover members are sewed directly to the free edges of the main boxing strip while the latter is extended to overlap 35 and conceal the roll stitches. This completes the mattress.

' The invention will be best understood by reference to the accompanying drawing in whichz- Figure 1 is a fragmentary, vertical section and part elevation of my improved boxing, inner casing and filling, without the top and bottom covers, and

Fig. 2 is a similar View showing the outer covers and padding in place.

As shown in the drawing, I provide a main, outer boxing strip 3 upon the inner surface of which is secured a pair of relatively narrow strips 4 of fabric. These strips are secured to the boxing strip by lines of stitches 5 extending parallel to and spaced a substantial distance from the upper and lower edges of the boxing. The boxing may be quilted, as shown, with horizontal rows of stitches 6 extending through the inner and outer boxing strips and through suitable felt or other filling between said strips. Attached along seams llla to the free, longitudinal edges of the strips 4 are top and bottom casing sheets I which form With said strips and with the boxing, an inner casing containing suitable stufiing material 8 and a body of springs 9. Corner or edge rolls II] are 5 formed by long stitches l extending through the strips 4, stufiing 8 and casing sheets 1 at each corner. It will be understood that these stitches H are manually applied and are of considerable length, longitudinally of the boxing, so that the 10 exterior of the strips 4 and members 1 are indented or formed with depressions of substantial depth at regular intervals. To conceal these depressions and to give a relatively smooth, unbroken contour to both the boxing and top and bottom of the mattress, I provide top and bottom outer covers I2 and secure the edges of these covers directly to the free edges of the boxing strip 3. The seams thus formed are covered in the usual manner by tapes l3. Before applying the covers l2, layers of padding M are applied to the outer surfaces of the sheets I to fill the top and bottom depressions produced by the stitches II and to give the desirable convexity to the edge portions of the mattress.

Referring to the elements shown in the drawing, I prefer the following procedure in the manufacture of my improved mattress. A boxing strip 3 with its quilting has the relatively narrow strips 4 sewed to its inner surface along the lines 5, leaving the strips 4 as free flaps overlying the inner surfaces of the boxing. Now the inner casing of the mattress is formed by attaching the top and bottom sheets I to the free longitudinal edges of the strips 4, along seams Illa, leaving one side of the mattress open. Now this casing is filled by forcing in the material 8 and body of springs 9. The casing is then closed, the operation of forming the edge rolls H! by means of the stitches H is performed, the felt or padding I4 is applied to the fabric 1 and the outer covers l2 are secured in place by sewing and applying the tape 13 at the junction of the sheets 12 with the outer boxing strip 3. Obviously, the mattress may be tufted in accordance with present common practice.

It is important to note that the stitches II forming the corner rolls do not extend to the outer surfaces of either the boxing or the covers I 2 so that a substantially smooth, unbroken contour is maintained on all exterior surfaces adjacent to the mattress edges and the stitches forming the corner rolls are not exposed to wear on the exterior of the mattress. At the same time the advantages of rolled corners or edges 55 are secured. I prefer to construct the strips 4 from strong, but inexpensive, material which would not be suitable for use on the exterior of the mattress. This. reduces the cost of the mattress and my method of manufacture effects a further saving in that the time required for applying the stitches is reduced because less precision is required in applying the stitches, as compared with methods where the roll-forming stitches appear on the exterior of the mattress.

By providing the initially separate strips 4 extending only along the upper and lower margins of the main boxing strip, I am enabled to economically reinforce the edge rolls where increased strength is needed independently of the boxing strip which is quilted on its inner surface. Such fragile material is frequently employed on the inner surface of the quilting that it is inadequate to properly hold the long stitches ll employed in forming the corner rolls. This is particularly true where Swiss embroidery or design strips are employed as the boxing. Such boxing has rather intricate designs and the inner or backing strips for the quilting are inadequate for the formation of the edge rolls.

Having described my invention, what I claim 7 as new and desire to protect by Letters Patent is:

A mattress having in combination a main, outer boxing strip having quilted padding on its inner surface, a pair of relatively narrow strips overlying the inner surface of said boxing strip and. secured thereto along lines extending parallel, to and spaced from the upper and lower edges of said boxing strip, top and bottom, inner casing sheets united to said relatively narrow strips, filling material confined by said sheets, boxing strip and narrow strips, ties extending through said narrow strips, filling and inner casing sheets to form corner rolls and top and bottom, outer covers secured to the free edges of said main boxing strip and completely covering the top and bottom respectively of the mattress, said boxing strip and covers being ar- 20 ranged to conceal said ties.

EDWARD L. BRONSTIEN.

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