US818111A - Bed-spring frame. - Google Patents

Description

PATENTED APR. 17, 1906 R. NAYSMITH. BED SPRING FRAME.

APPLICATION FILED sEPT. 26. 1905.

UNITED STATES PATENT OFFICE.

ROBERT NAYSMITH, OF PITTSBURG. PENNSYLVANIA, ASSIGNORTO PITTSBURG TUBE COMPANY, OF'PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

BED-SPRING FRAME-' Specification of Letters Patent.

Patented April 17, 1906.

Application filed September 26,1906. Serial No. 280,117.

To all whom, it may concern.-

Be it known that I, ROBERT NAYSMITH, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Bed-Spring Frames, of which the following is a specification, reference being had therein. to the accompanying drawings.

This invention relates to certain new and useful improvements in bed-spring frames; and the invention relates more particularly to metallic frames for bed-springs.

The primary object of this invention is to provide a bed-spring frame consisting of comparatively few parts which can be easily and quickly assembled to form a frame upon which a woven-wire fabric can be mounted.

Heretofore in frames of this character angle-irons have been used for clamping the fastening edges of a woven-wire fabric to the frame, also other means which were as expensive and troublesome to assemble. It is also a well-known fact that a considerable number of rivets and bolts were used in frames of this character; and my invention aims to entirely dispense with the use of rivets, screws, or bolts in connection with bedspring frames.

I have devised novel means for fastening the woven-wire fabric to a frame, whether it be a bed-spring frame or a frame used for other purposes.

My invention further resides in the novel construction, combination, and arrangement of parts to be hereinafter more fully described, and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a perspective view of one of the corners of a frame constructed in accordance with my invention. Fig. 2 is a side elevation of one of the castings which forms the corner of the frame. Fig. 3 is a similar view of the casting illustrating a piece of woven-wire fabric secured therein. Fig. 4 is a perspective view of a piece of tubing employed in connection with a bed-spring frame, and Fig. 5 is a cross-sectional view taken on the line a: as of Fig. 2.

In the accompanying drawings I have simply illustrated one of the corners of a bedspring frame, this being seen in Fig. 1 of the drawings. I have not deemed it necessary to illustrate an entire frame, as the other corners are identical in construction, and in the present illustration I have shown one of the side rails and one of the end. rails. The side rail 1 and the end rail 2 are retained together by a novel form of casting 3, this casting also being constructed to retain the bed-spring frame upon a bedstead. The casting comprises a tubular body portion 4, which is oval in cross-section. The one end of the body portion is closed and is formed with an upwardlyextending flange 5, the top of which carries a tubular member 6, this member being disposed at right angles to the body portion 4. The member 6 centrally of its length is braced by two'web portions 7 7. The flange 5 upon its one edge is provided with an outwardly-extending lug or prong 8, adapted to engage the side rail of a bedstead and support that corner of the bed-spring frame upon the bedstead.

The tubular member 6 is split, forming two upwardly-extending sides 9 9 and a head 10, this head being located at the end of the tubular member 6 adjacent to the prong 8. The head 10 is recessed, as at 11, to form a seat or socket for one end of the end rail 2. The bottom of the tubular member 6 is formed with a longitudinally-disposed rib ll the object of whichwill be presently described.

The end rail 2 is formed of a piece of tubing, the tubing being sheared or cut longitudinally of its length, as at 12, and formed with its longitudinal edges bent inwardly, as illustrated in Figs. 3 and 4 of the drawings, thereby forming a longitudinally-disposed slot 14 within the periphery or circumference of the end rail 2.

The general practice heretofore has been to employ angle-bars for the end rail of a bedspring frame, owing to the difficulty in securing a wire fabric to a tube.

By using a piece of tubing and constructing it substantially as illustrated in Figs. 3 and 4 of the drawings I am enabled, in combination with the tubular member 10, to rigidly fasten the edge of a piece of woven-wire fabric 15 to the end rail 2. To accomplish this, I bend the edge of the wire fabric 15 upon itself, as at 16, and slide this edge in the longitudinally-disposed slot 14 of the end rail 2. The end rail can then be partially rotated until the fabric embraces approximately onehalf the periphery of the end rail, as clearly illustrated in Fig. 3, at which time it can be seated in the tubular member 6. In placing the end rail 2 in the tubular member 6 the longitudinallydisposed rib 11 engages in the inverted-V-shaped groove 12*, formed by the inwardly-bent edges of the end rail 2, this rib serving to prevent the end rail from rotating within the tubular member 6, also prevent ing the woven-wire fabric 15 from becoming disengaged from the member 6 after it has been once clamped therein, as will be presently described.

When the end rail 2 and the fabric 15 have been properly positioned in the tubular member 6, the upwardly-extending sides 9 9 of said member are bent inwardly (see Fig. 3) to embrace the end rail upon a greater portion of its periphery, one of these upwardlyextending sides bearing against the wovenwire fabric 15. The fabric besides being held in the l .ngitudinally-disposed slat 14 of the end rail will be frictionally held between the end rail and the side of the tubular member 6. The friotic nal engagement cf the wovenwire fabric 15 with the member 6 will serve to strengthen the longitudinal edges of the fabric, it being a well-known fact that these edges are used more than the center portion of the bed-spring frame or fabric 15.

The side rail 1 is formed of a piece of tubing oval in cross-section, the tubing corresponding in cross-section to the interior diameters of the body portion 4. In forming an oval opening and employing an oval tubing to engage in said opening the casting 3 will be prevented from rt tating upon the end of the side rail 1, this also being true vice versa.

By the novel construction set forth above it is evident that besides the woven-wire fabric a bed-spring frame consists of four cornercastings, two end rails, and two side rails, these elements being assembled to form a frame of considerable rigidity and strength, which will firmly retain the woven-wire fabric in position after it has been once placed upon said frame.

The operation of placing the fabric upon the frame is similar to the operation now in vogue, the one end of the fabric being first fastened to the frame and. then the fabric stretched until the other end is placed in engagement with the frame, thereby holding the fabric in a taut condition. As rivets,

screws, and bolts are dispensed with and the number of pieces used in constructing a bedspring frame reduced to a minimm, it is obvious that a frame constructed in accordance with my invention is extremely simple and can be n'ianufactured at a comparatively small cost.

I/Vhat I claim, and desire to secure by Let ters Patent, is

1. In a bed-spring frame, the combination with castings, each comprising a tubular body portion open at one end and a tubular member disposed at right angles to the body portion, said tubular member being split for a portion of its length, side rails seating in said body portions, end rails formed with longitudinally-disposed slots, said slots having inturned edges and said end rails seating in the tubular members, the sides of the tubular members being bent over said end rails and a fabric having its edges secured in the sl; ts in the end rails, substantially as described.

2. In a bed-spring frame, the combination with side rails, of a casting carried by each end (.f said side rails and formed with a closed tubular member to receive the side rail, a split tubular member carried by said casting, an integral flange and integral webs connecting said tubular members, a supporting-prong carried by said casting, a tubular end rail adapted to seat in said split tubular member, said tubular end rail being split and having its edges bent inwardly to form a longitudinally-dispcsed slot adapted to receive the edge cf a woven-wire fabric, means to fix said end rail within said tubular member, sub stantially as described.

3. In a bed-spring frame, the combination with side rails, of a casting carried by each end f each side rail, said castings being provided with a hollow tubular body portion to receive the side rails, a split tubular member carried by said casting, tubular end rails mounted in said split tubular members, each said end rail having a longitudinally-disposed slot formed therein adapted to receive the edge of a woven-wire fabric, a longitudinally-.

disposed rib formed integral with the split tubular member and engaging a slot formed in the end rail to prevent rotation of said end rail within said split tubular member, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses. ROBERT NAYSMITH.

Witnesses:

E. E. Porrna, M. E. LAWsoN.

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