US790614A

US790614A - Spring bed-bottom.

Info

Publication number: US790614A
Application number: US21694804A
Authority: US
Inventors: Samuel I Bridgewater
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-07-18
Filing date: 1904-07-18
Publication date: 1905-05-23
Anticipated expiration: 1922-05-23

Description

. PATENTED MAY 23, 1905. S. 1. BRIDGEWATER. SPRING BED BOTTOM. APPLIUATION Pimp JULY 18, 1904.

UNITED STATES Patented May 23, 1905;

PATENT OFFICE.

SPRING BED-BOTTOM- SPECIFICATION forming part of Letters Patent No. 790,614, dated May 23, 1905. Application filed July 18, 1904. Serial No- 216,948.

To all iuhom it may concern: I

Be it known that I, SAMUEL I. BRIDGEWA- 'TER, a citizen of the United States, residing ence being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in spring bed-bottoms of the type thatare composed of marginal frames, open-mesh wovenwire fabric comprising tie-wires attached to the frames, and helically-coiled springs connected at their ends to the tie-wires, the invention having particular reference tothe tiewires and the arrangement of the springs relatively thereto.

The objects of the invention are to provide spring bed-bottom construction in which the minimum number of the most simple and inexpensive forms of tie-wires will be required, so as to reduce the cost of manufacture thereof tothe minimum, and which may be durable and economical in use.

With the above-mentioned and other minor objects in view the invention consists inthe novel forms and arrangement of the tie-wires and the arrangement of the springs with respect to the tie-wires, as hereinafter particularly described, and pointed out in the claims.

Referring to the drawings, Figure 1 is a fragmentary perspective vlew illustrating the invention; Fig. 2, a fragmentary vertical sectional View at the plane of tie-wire B in Fig. 1, the tie-wire being shown in side elevation; and Fig. 3 is a fragmentary vertical sectional view at the plane of the tie-wire Cin Fig. 1,

tudinal wires, as B and B, being disposed at right angles to the transverse wires, as C C C C these particular wires being attached to the frame A. Similar wires, as B B and C C (1 C, are attached to the frame A. The two frames and the two sets of tie-wires are alike and the springs, as D D D D are connected at their ends to the two-sets of tiewires. The tie-wires are all formed straight except at the points of intersecting, or where the longitudinal wires cross the transverse wires, and at their end portions, so that the bodies of the wires are easily formed. A description of the wires that are attached to the frame A will be understood as also referring to the wires that are attached to the frame A.

Each tie-wire,as B, has a suitable number of upturned bends, as a Z) 0 cl, somewhat resembling open loops, so formed of the wires that the parts of the wires between the several bends or loops remain in alinement. bends are arranged as pairs, the two bends of The each pair being of suitable distance apart to engage the inner and under sides of the end coils of the springs at opposite sides of the coils, on the line of diameter thereof, the bodies of the wires being in the plane at the under sides of the coils, and the centers of the bends extending approximately to the tops of the end coils, so that a pair of bends prevent lateral movemnnts of the end of the spring along the axis of the wire when locked by the transversely-disposed wires.

Each tie-wire, as C, has a suitable number of downturned bends, as e f, each bend in itself being identically like the bends, as a, in the wires, such as B, except that they are disposed downwardly. There are twice as many wires like (1 as there are like B,and such wires, as B, have twice as many bends as have such wires asC.

The two parts g and g of the end coils of the springs extend over the bodies of the wires,

as B, close to the bends a and Z) and under the bodies of the wires, as C and C, the end portions It of the coils extending also under the wires corresponding to the wires C or G and each end portion has a hook 7t at its end engaging a Wire corresponding to the wireB or C The two hooks h h of a spring are'preferably formed at opposite sides of the axis of the spring, as shown, and the springs are preferably arranged, as shown, with the heel: of one spring near the wire and the hook of the adjacent spring near the wire C so that the tendency of the springs to lean when compressed would be counteracted by other springs. It will be seen, therefore, that the bodies of all of the wires, as B, lie in a plane at the under side of the end coil of the spring and that the bodies of the wires, as C, lie in a plane at the opposite or upper side of the coil 4 or against the ends of the springs, the longitudinal and transverse wires being crossed at the inner portions of their bends close to the inner sides of the coils, thus securely holding the springs in the desired positions with respect to each other and to the marginal frames. In some cases the wires have slight bends, as i, Fig. 2, near their connections with the frames.

In practical use mattresses may be supported on the springs and tie-wires, and the latter being in nearly the same planes as the ends of the springs will present even or substantially plane faces, so as to prevent undue and uneven sagging of the mattresses. Also there may be suitable filling placed about the springs and the whole upholstered as spring-cushions without requiring separate mattresses to be used on the springs.

Having thus described the invention, what I claim as new is 1. Abed-bottom comprisinghelically-coiled springs, marginal frames, longitudinal tiewires each having pairs of loops the outer opposite sides of which engage the inner sides of the end coils of the springs at the planes of greatest dimension thereof, the wires extending under the coils and the loops being all bent outwardly in the same direction, each coil being engaged by a pair of the loops, and transverse tie-wires each having single loops at the end coils of the springs, there being a single loop engaging a loop of a longitudinal wire at the inner side thereof, the transverse wires extending against the outer sides of the coils, all of said wires being straight between the loops thereof and connected to the marginal frames, substantially as set forth.

2. In a bed-bottom, the combination with the end coil or ring of ahelically-coiled spring, of a tie-wire having a straight body portion extending under the coil or ring and having a pair of loops bent outwardly againstthe inner sides of the coil or ring at the plane of greatest diameter thereof, and a pair of tiewires having each a straight body portion extending against the outer side of the coil or ring and having also a loop the inner side of which engages the inner side of. a loop of the first-described tie-wire, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

SAMUEL I. BRIDGEWA'IER.

Witnesses:

RALPH I-I. SrAUoIr, FRANK MoN EAL.