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Publication numberUS1250892 A
Publication typeGrant
Publication dateDec 18, 1917
Filing dateAug 26, 1916
Priority dateAug 26, 1916
Publication numberUS 1250892 A, US 1250892A, US-A-1250892, US1250892 A, US1250892A
InventorsFrithiof N Johnson
Original AssigneeFrithiof N Johnson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1250892 A
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Description  (OCR text may contain errors)




1,250,892 Patented Dec. 18, 1917;

Witness ln2 enior: 6Q9cw%14 fit iOf JOh 7150 2 @M AMQQW,




To all whom it may concern:

Be it known that I. lfiu'rnior X. JOHXsON, acitjzeu of the United States, and a resident of ll'atikegan, in thee-minty of Lake and State oflllinois, have invented-certain new and useful Improvements in Spring-attresses, of which the following is a specification. 1 r g This invention relates to devices designed to be used in vehicles, as a cushion to the seat thereof, and in beds, as a mattress, and in otherlike places. y

Thel' obiects of. the invention are to obtain )ring mattress inwhieh the springs will nece sarily retain the-position in which they or originallyarranged-tiwithout the use of ties or other connecti'ii" de es; a mattress whichwwtitlihe.durabhfa'iid. etain its sha a; auda device which will have a comforta 1c 2d feeling tothe person using the same.

I have illustrated a-spring mattress eml'mdyiugthis invention which is particularly adapted to form the cushion of'a seat in an automobile, in the drawing accompanying and forminga part of this specification: and

' in said 'drawingl igure l is a top plan view, with the. upper coverings rcnmvedatv the right hand end thereof. to expose the arrangement: ot'pprmgs to view. i

Fig. 2 is a side elevation of the device illustrated in Fig. 1, with the side coverings removed at the right hand end thereof to expose the springs to view.

Fig. 3 is a plan view of one end of the covering adjacent to the springs of thede- 1 vice, showing the manner of stitching the same, with the springs not inserted in place.

And Fig. 4 is a view of the edge, looking down. of the covering which is illustrated in Fig. 3.

A reference character applied to designate a given part indicates said part throughout the several figures of the drawing wherever thesame.- appears.

In constructing a spring mattress embodying this invention two strips of canvas, or

other suitable material, as heavy woven fah- 'ric, sometimes called duck,or ducking, (represented by letter A) are placed to register, and the stitching I is made, to join said parts tcget-hcr, and at the same time to obtain pockets, (indicated by letter (l). The. length of the strips are made to correspond with the lenglh of the mattress which is to be made, or with the width of said mattress,

Specification of Letters Patent.

Patented Dec. 18,1917.

Application filed August 2 6, 1916. Serial No.'117,0 35.

as preferred; and at'ter the stitchin completed the springs l) are. inserted in said pockets. These springs are ordinary spiral springs having one end thereof largfl' thau the other (in d ameter), and hence .\r.h(-uj they are inserted in pockets t. onetheriaif will he msertr t at the larger end of it pocket,

from one edge of material and the nextspring willbc inserted in the adjacent pocket. trom the other edge of said material... \Vhen the several pockets whichare obtained by:

stitching li are-tilled in the. manner l-ist above describedthe nppe' and lo\ver e-dges: of said strips are brought 'overon' to*s.=iidsprings and secured together, covering the (see Figs? and 3).,

A plurality of strips A- having zheeiv" stitched at'li, the springs inserted, as described, and the edges of pockets having been turned on to the springs and secured together, a plueality of like constructions are arranged parallelto each other, and close together, with the larger ends of the springs in one construction adjacent to "the smaller ends of the springs in the adjacent construction, and said eonst ruct ion's are provided with an additional cover which is made of suitable flexible material, as canvas, ducking. leather, or the like.

The additional cover is represented by the upper and lower faces F, 1". sides f, f, and and the metal frames (t, (t. The metal frames (l, G extend entirely around said additional, cover, (ends f, f. as well as sides f, The metal frames are made by me of wire, thefunctiou thereof being to hold the several constructions formed by the'strips A having pockets and springs D in said pockets, in suitable relative relation when the maitress is being moved about, and not resting on the'seatof the vehicle. y

An additional cover to the one comprisg 'B is lit) ing faces F, 1*", sides f, f, ends f, f, and 1 frames G, G, may he placed over said described cover; hut as said additional tuner 'is not an essential part of the lliiltl'ltths enihodying the invention T have not, illustrated it, or described lts construction.

In constructing and using spring mat-- tresses embodying this invention 1 find that ad acent rows of springs, inclosed in pockets as described, fit to each other in the same manner that adjacent springs fit in said pockets; and that the relative positions of the springs are not changed by use of the device.

By reference to Fig. 1, of the drawing, it will be observed that the end spring of each construction or unit, is close to the end of the mattress or cushion; all the springs of the units being in the same lateral line with the springs of adjacent units, and hence, each unit has the same number of springs in it.

The springs of adjacent rows fitting to each other in-the same manner as the adjacent springs in a given unit, the springs of one row cannot get out of said described position relative to the springs in adjacent rows, and no tying of the springs of one row to the springs of adjacent rows is required.' It is also obvious that the springs of one row being in line laterally with the springs of adjacent rows a larger number of springs are contained in a mattress or cushlon of a given size than could be contained in said mattress or cushion were the springs of one row alternate with the ones of ad acent rows.

I claim;

1. A mattress comprising a cover, and a plurality of units arranged therein, each of said units consisting of strips of textile material stitched at intervals to form pockets respectively having one end larger than its other end, and with the large end of one pocket in the same plane as the small end of the adjacent pocket, spiral springs in said pockets, the ends of said spirals correspondmg with the ends of said pockets, and means to close the ends of said pockets, said units positioned in said cover with ad'a cent s rings in adjacent units fitting toget er in the same manner as do adjacent springs in each unit.

2. A spring mattress comprising a plurality of units, each of said units consisting of a cover rovided with cone-shaped pockets, in com ination with spiral springs assembled in said pockets, one end of said springs being larger than the other and the small end of one sprin in each of said units being in substantia ly the same plane as the lar and an a ditional cover a said 'lurality of units, said units being sembled in said additional cover with the small end of a sprin in one unit in the same'line and in su stantially the same lane as the large end FRI HIOF N. JOHNSON. Witnesses:


e end of the ad'oining spring, apted to hold of the spring beside it In the adjoimn unit;

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6931685 *Sep 12, 2003Aug 23, 2005Dreamwell, Ltd.One-sided mattress
US7178187 *Aug 28, 2004Feb 20, 2007Sealy Technology LlcAsymmetric spring components and innersprings for one-sided mattresses
US7418753 *Aug 23, 2005Sep 2, 2008Dreamwell, LtdOne-sided mattress
US7814594Aug 29, 2008Oct 19, 2010Dreamwell, Ltd.One-sided mattress
EP2105069A1Mar 25, 2008Sep 30, 2009L&P Swiss Holding CompanyCoil spring assembly
U.S. Classification5/720, 5/248
Cooperative ClassificationA47C27/064