US613843A - Spring-mattress - Google Patents

Description

No. 6l3,843. Patented NuV.'8, I898.

- F. .1. MAIER.

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(Application filed Jan. 15, 1898.)

(No Model.)

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FRANZ J. MAIEB, OF TRENTON, NE\V JERSEY.

SPRING-MATTRESS.

SPECIFICATION forming part of Letters Patent No. 613,843, dated November 8, 1898.

Application filed January 15, 1898. Serial No. 666,746. (No model.)

fully set forth in the following specification and accompanying drawings.

My invention consists of a spring-mattress for a bed, &c., formed of a metal frame constructed of an outer rim and metal cross-slats whose ends are formed with tenons, which are passed through openings in said rim and firmly connected with the latter by means of heads on the outer ends of said tenons and shoulders at the base of said tenons, said shoulders and heads clamping the opposite ends of the tenons with said rim rigidly as an integral connection, preventing motion of the tenons through the openings in either direction and avoiding piercing of the tenons and weakening of the same.

It also consists in forming the aforesaid rim with channeled sides, whereby lightness, strength, and inexpensiveness are attained, and the heads of the tenons may be set into said rim, avoiding projection of said heads beyond said rim.

Figure 1 represents a plan view of a springmattress embodying my invention. Fig. 2 represents a vertical section of a portion thereof on an enlarged scale. Fig. 3 represents a horizontal section on line 00 m, Fig. 2. Fig. t represents a perspective view of a detached portion. Fig. 5 represents a vertical section of a bedstead-post on which the mattress may be supported. Fig. 6 represents a horizontal section on line y y, Fig. 5.

Similar letters of referenceindicate corresponding parts in the figures.

Referring to the drawings, A designates the frame of the mattress, the same consisting of the metal rim B and the sets of metal crossslats O and D, which are both fiat and some vertically arranged and others horizontally arranged, said rim being channeled or flanged in horizontaldirection,whereby great strength is obtained and a lighter frame produced. The ends of the slats are formed with tenons E, which enter openings in the rim and are headed or riveted to the latter, whereby the slats are firmly connected with said rim, the crossing slats being also reeved, whereby they are positively supported on each other, for which purpose,in the present case,the longitudinal slats C have openings F, through which the transverse slats D pass, as most clearly shown in Fig. 4, thus bracing and strengthening the slats and enabling them to endure the strain to which they may be subjected with out sagging to any material extent. As the tenons are riveted to the rim their ends do not project materially beyond the outer surface of said rim, with which the heads of the rivets, as formed, are directly in contact. Then the walls of the channels of the rim inclose the heads of the tenons and cause said heads to be set back of said walls, whereby they cannot cut or scratch surrounding objects. Furthermore, the openings through which said tenons are passed are entirely closed, preventing the lodgment of vermin, the riveting of the tenons to the rim also overcoming loose joints and preventing rattling of the parts. Furthermore, the rim is made of heavier material than the slats. The openings in the former do not materially weaken the same; but said slats, ow= ing to their nature, are preserved intact without piercing or perforating the same. The tenons simply pass through the openings in the rim and are headed on their outer ends, the heads overlapping the outer Walls of said openings, while the shoulders existing at the base of the tenons abut against the inner face of the rim and overlap the inner walls of said openings, as most plainly shown in Fig. 3, thus firmly connecting the slats with the opposite sides of the rim without the employment of independent rivets,which necessarily occasion piercing of the slats, which, being thin in their nature, break from said rivets, but which is avoided by my construction.

The slats D support the springs G, over which is the spring-bottom H.

The mattress may be made in sections or a single length, as desired, and provided with lugs to enter sockets J onvthe bed-posts for supporting the mattress.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A frame consisting of sets of vertically and horizontally arranged slats, the members of one set passing through the members of the other set, and a rim with openings therein, said slats having 011 the ends thereof, tenons, 5 shoulders and heads integral with the same, said shoulders and heads rigidly clamping said tenons to the outer and inner sides of said rim.

2. A frame for a spring-mattress consisting of a rim, and crossed slats, the latter being IO reeved together and having tenons which are riveted to said rim, said rim being channeled in horizontal direction.

FRANZ J. MAIER.

lVitnesses:

J. S. WILsoN, Josnrrr RIETIIE.

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