US136271A

US136271A - Improvement in wire-mattress frames

Info

Publication number: US136271A
Authority: US
Publication date: 1873-02-25
Anticipated expiration: 1890-02-25

Description

J. G. ,SMITH.

Woven Wire Mattress Frames.

N0. 136,271. I Q PaentedFeb.25,T873

WITNES SESI INVENTORZ icky? UNITED STATES PATENT QFFIGE.

JOHN SMITH, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN WIRE-MATTRESS FRAMES.

Specification forming part of Letters Patent No. 136,271, dated February 25, 1873.

To all whom it may concern:

Be it known that I, JOHN G. SMITH, of the city and county of St. Louis and State of Missouri, have invented a certain Improvement in Woven-Wire Mattresses, of which the following is a specification:

This improvement relates to a means for adjusting one of the end rails of the mattress so as to increase or diminish the tension of the spiral springs of which the body or web of the mattress is composed; and my invention consists in the combination of the end rail or bar of the mattress-frame, with metallic pieces made with flanges to clamp the end and side rails, and adjustable on the latter by means of set-screws. These adjustable pieces are slotted longitudinally to receive transverse bolts, by which they are held firmly to the side rails after adjustment.

Figure 1 is an under perspective view of my improvement. Fig. 2 is a side view, showing the improvement attached to an end support in forming a bedstead.

A are portions of the side rails of the mattress-frame bored transversely to receive the clampingbolt B, which has a nut, 11, and head 11-. The bolts B pass through the slots 0 of the adjustable pieces 0. The piece 0 has broad flanges c, which lap around the upper and lower edges of the rails A and tightly hold the same. D are set-screws, which screw through the ends of the pieces 0, and whose ends bear against the metallic knobs or plates 01 in the ends of the rails A. C is a bracket on the piece 0 extending upward, and so formed as to receive and tightly hold one end of the end bar or rail E, to which bar one end of the wire-work is attached.

In elastic woven-wire mattresses it is proper that there should be some means of adjusting the tension to suit the pleasure of the user and it is required that there should be no rigid bar between the ends, as the mattress is much used in hot weather with no other covering than a sheet; and as the length of the mattress is limited by that of an ordinarybedstead there is no space between the ends where a rigid adjusting device can be properly applied.

In Fig. 2 is shown the method of attaching my device to an end frame to form a bedstead. The supporting frame F is attached to the pieces 0 by bolts G, and held firmly in position by steady-lugs 9 cast upon the face of O, a similar supporting-frame being attached to the other end of the mattress.

To adjust the tension of the mattress, the nuts 12 are loosened, the screws D turned, and the nuts I) again tightened.

I claim as my invention- I The combination of the side rails A, end bar or rail E, and adjustable pieces 0 0, when the latter are provided with flanges 0, slot 0, clamping-screw B, and set-screw D, all arranged substantially as and for the purpose set forth.

JOHN G. SMITH.

v Witnesses:

SAML. KNIGHT, ROBERT BURNS.