US392708A

US392708A - Bed-sprjng

Info

Publication number: US392708A
Authority: US
Publication date: 1888-11-13
Anticipated expiration: 1905-11-13

Description

(No Model.) 2 Sheets-Sheet 2.

J. ARN.

BBD SPRING. No. 392,708. Patented Nov. 13, 18818.

fw m- QW UNITED STATES PATENT Ormes.

JOHN ARN, OF COLUMBUS, OHIO.

BED-SPRING.

SPECIFICATION' forming part of Letters Patent No. 392,708, dated November 13, 1888. Application filed February 24, 1888. Serial No. 265,109. (No model.)

To all whom it may concern:

Be it known that I, JOHN ARN, of Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Bed-Springs; and I do hereby de clare the following to be ai'ull, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in bed-springs; and it consists in the combination, with the side rails of the bed, of elli ptical springs, which are secured to the inner sides thereof and provided with supports, coiled springs which are placed upon the sup` ports, cross-bars which are placed upon the tops of the coiled springs and which serve to connect the springs together, and rods or bars which extend parallel with the rails of the bed, so as to connect the head and foot springs together, as will be more full y described herei nafter.

The object of my invention is to so combine elliptical and coiled springs that only four of each kind are needed in a large bed, thus dispensing with the usual spring bed-bottoms which .have heretofore been used, and substitute therefor a much simpler and cheaper bottom, and one which is much more uniform in its action.

Figure l is a plan view of a bed-bottoni en1 bodying my invention. Fig. 2 is an inverted view. Fig. 3 is a vertical cross-section taken through the center of the bed. Fig. It is a longitudinal vertical section. Y

A represents the rails of an ordinary bedstead, and to the inner sides of each one of which are secured two or more L-shaped supports, B, upon which the elliptical springs C are secured. One spring, C, at the head and another near the foot upon each rail will be all that is necessary even in alarge-sized bed. rlhe elliptical springs C are formed of one or more thicknesses of metal, according to the strength or elasticity the springs are to have, and secured to the top of each spring C is a suitablyshaped support, D, which extends downward any suitable distance below the springs C, and which have their lower ends turned inwardly toward each other, so as to form rests or supports for the coiled springs E, which are placed thereon and secured in position in any snitable manner. rIhe coiled springs have their upper ends to extend to a point slightly below the top edges of the elliptical springs C, and secured upon the tops of each pair of coiled springs E are the crossbars F, which serve to connect the springs together and to form supports for the bars G, which extend parallel with the rails A. The ends of the cross-bars F are recessed or grooved, so as to catch over the edge of the supports B and thus be guided in their vertical movements, and at the same time prevented from having any lateral play. The lower ends of the supportsl) are connected together by the rods H, which extend across the bed parallel with the cross-bars F, and which serve to brace the supports D in position.

The bars G may be connected to the crossbars F in any suitable manner, but are here shown as having pins, studs, or projections, which pass down through corresponding holes made in the ends of the cross-bars F.A

The weight of the person reclining upon the bed iirst comes upon the coiled springs, and is then taken up by the elliptical springs through the supports D, upon which the coiled springs are placed. The coiled springs are compressed rapidly, while the elliptical springs move much more slowly, and are only brought into play after the coiled springs have received the Whole of the weight ol' the person upon the bed. By this construction a compound spring is pro` duced which will give an unlimited play to the bed without the slightest danger of injuring the springs or causing the portions out of which the bed-bottom is made to strike against each other, as is frequently the case. Four elliptical and four coiled springs are all that are needed inthe largest beds and for the heaviest persons.

Having thus described my invention, I claim- 1. In a bed-bottom, the combination ofthe rails, the elliptical springs connected thereto, supports connected to the elliptical springs, the coiled springs placed upon the supports, the cross'bars placed upon the tops of the coiled springs, and the side bars which` connect the cross-bars together, substantially as shown and described.

IOO

2. The combination ofthe side rails, suitable In testimony whereof I affix my signature in 1c supports secured thereto, the elliptical springs presence of two witnesses. y secured to the side supports,A the L.shaped supports D, secured to the elliptical springs JOHN ARN. and connected together at their inner ends by l the cross-rods, the cross-bars which are placed Witnesses: upon the upper ends of the coiled springs, and E. L. DEWITT, the side bers which connect the crossbars to- R. G. HOFFMAN.

gether, substantially as set forth.