US1399894A - Bed-spring - Google Patents

Description

J. W'. SHARP.

BED SPRING.

APPLICATION' FILED MAY14. 1920.

Patented Dec. 13, 1921.

2 SHEETS-SHEET I.

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B E D S P R I N G. APPLIC o.

1,399,894, Patented Dc. 13, 1921.

UNirED srarss JOHN WILLIAM SHARP, OF MUSKOGEE, OKLAHOMA.

BED-SPRING.

Specicaticn of Letters'latent.

Patented Dec. 13, 1921..

Application led May 14, 1920. Serial No. 381,454.

To all whom t may concern Be it known that I, JOHN-VILLIAM SHARP, a citizen of the United States residing at Muskogee, in the county of Nuslrogee and State of Oklahoma, have invented certain new and useful improvements in Bed- Springs; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled. in the art to which it appertains to make and use the same.

This-invention relates to an improved bed spring of the form including vertically disposed spiral coils positioned between and connected with upper and lower frames, and one object of the invention is to provide improved means for connecting the upper end portions of the springs so that thespiral springs of one row will be hingedly connected with the spiral springs of a second row and thus the springs of one row permitted'to have vertical movement independent of adjoining rows of springs.

Another obj ect of the invention is to provide an improved manner of connecting the upper convolutions of the spiral springs with longitudinally extending wires ot the upper trame, this coupling not only serving to connect the upper end portions of the springs with the frame but alsoserving to form an eye for engagement bythe hingc elements of the spiral springs.

Another object of the invention is to provide these hinge elements with hooks for passing through the eyes, the hooks having a special construction so that they cannot readily slip out ot engagement with the eyes.

Another object of the invention is to provide an improved hook connection for use iu connecting spiral springs of rows of springs at the transverse center of the spring structure. v f.

Another object of the invention is t0 provide a bed spring in which the spiral springs will be firmly connected with the upper and lower frames but at the same time the springs be so constructed that one portion of the bed spring may be depressed without causing tilting of the second side portion and thus provide a spring which will be very comfortable.

This invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a top plan vlew of the 1mproved bed spring.

Fig. 2 is an enlarged fragmentary top plan view 'or' a portion of the bed spring.

Fig. 3 is a view showing the structure of Fig. 2 in side elevation. l

Fig. 4 is a view showing a connecting hook in side elevation. i

Fig. 5 is a view showing the connecting hoolr of Fig. 4 in top plan.

Fig. 6 is a fragmentary top plan view of one corner portion or the bed spring.

This improved bed spring is provided with an upper frame and a lower trame, each ot' which includes a frame proper l formed of rod metal. Longitudinally extending strands 2 are carried by the upper trame and similar strands 3 are carried by the lower frame, the lower trame being also provided with cross strands 4. Diagonal bracing strands 5 are shown between the strands and 4 at the transverse center ot' the bed spring to increase the strength ot the lower frame. lt is to be understood that it desired, similar diagonally extending bracing strands may be provided between the strands 3 and 4 at the side portions of the bed spring. v

The spiral springs 6 are positioned between the upperand lower Jframes and are arranged in rows extending longitudinally ot the bed spring. In the form shown, there has been provided -eight rows of spiral springs with twelvev in each row, but it is to be understood that the number of rows and the number ofsprings in each row can be varied. according to the size of bed spring desired. In putting the springs in place,v eachspring will have its lower and smaller end portion connected with the cross strands 3 and 4 as shown in Figs. 2 and 3 lby having its lower convolution intertwined and thus tirmlyconnected with the cross strands. It should be noted that the end of the strand of resilient metal of which the spring is formed isbentupwardly as shown at 7 thus preventing danger of the spring becoming disconnected from the cross strand by turning. The upper convolution is bent to provide an eye extension 8 and the longitudinally extending strands 2 of the upper frame are twisted to provide transversely extending hook elements 9 with which the eyes 8 will be interlocked as clearly shown in Fig. 2. It will thus be seen that the upper convolution of each spring ywill vbe .rmly interlocked with one of the longitudi- .be extending toward each other.

nally extending strands 2. lThe upper end portion of the resilient strand from which the spring is formed is bent about the convolution beneath it to provide an eye l0 through which this convolution will pass and is then bent to provide a side arm 11. In the end rows, the side arms 11 of the springs will be bent about the side'bars of the upper frame but in the remaining rows ithese side arms 11 are bent to provide hooks 12 which extend through the eyes 8 and are elongated as shown in Fig. 3 and have depending bills 13 extended downwardly beneath the side arms 11. By having the hooks 12 elongated and extending through the eyes 8 and pro-` vided with the elongated bills 18, the side arms will be hingedly mounted and therefore the springs of one row can have downwardly movement independent of adjoining rows. It will thus be seen that if a person occupying one sideof a bed is of greater weight than a person occupying the second side portion, each can rest comfortably sincek the bed spring will not be tilted to one side. In constructing the bed spring the rows of springs at the sides are first put in place and then the adjoining f rows are put in place until the center rows have been put in place. It will thus be seen that for one side portion of the bed spring, the side arms will extend toward the right V`from the upper ends of the spiral springs Y and for the second side portion of the bed spring, the side arms will extend toward the left. Therefore, at the center of the bed spring, the eyes 8 of the adjoining rows will In order to connect these two rows of springs, there has been providedhooks 14 each of which is formed from a strand of wire bent to provide a shank 15 and hook elements 16 which will -extend through the adjoining eyes 8. These hook elements 16 are provided with depending bill extensions 17 which extend beneath the shanks 15 and will thus prevent danger of the hooks 14 working out of engagement with the eyes 8 of the adjoining springs. It will thus be seen that there has been provided a bed Spring having coil springs which will be interlocked with the longitudinally extending strands of the upper frame in an improved manner and Y further that there has been provided improved hinge means in the form of improved hooks for connecting the springs of one row with the eyes of the springs of adjoining rows and that these .hooks or hinge elements are so constructed that they cannot readily work out of the` eyes. It will be further noted that the bed4 spring is so constructed that by means of the improved hinge connection between the springs, the springs of one row mayY have independent movement with respect to adjoining rows and thus a very comfortable spring provided.

1. A bed spring comprising an upper frame having longitudinally extending strands, a lower frame, spiral springs posi-V tioned between the frames in longitudinally extending rows and having their lower ends connected with the lowerV frame and their upper ends at one side intertwined with the n longitudinally extending strands or the upper frame and bent to provide outstanding eye Yextensions within the intertwinedportions whereby the upper portions of the springs will be held against turning and against movement upon the longitudinally extending strands of the upper frame, and side arms extending from the opposite sides of the springs and having their end portions bent to provide hook elements extending through the eye extensions of adjacent springs to hingedly connect the springs.

2. A bed spring comprising an Vupper frame including longitudinally extending strands, a ylower frame, spiral springs having their lower ends connected Vwith thelower frame and each having its upper convolution at one side extending over one of the longitudinally extending strands and bent to provide 'an outwardly extending' eye extension, the strand and the upper convolution of the spring being twisted together to providev an interlocked portion having the eye extension intermediate its length, the

resilient strand forming the spring ybeing bent about the second convolution Yatthe opposite side lfrom the eye extension and further bent to provide a side arm having its end portion bent to provide an elongated Y hook extension extending through the eye extension of an adjacent spring and having a depending bill extension extending downwardly in crossed relation to the side arm.

JOHNY WILLIAMV SHARP.

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