US1384748A - Wire fabric - Google Patents

Description

C. EHRLICH, DECD. M. EHRLICH ADMINISTRATOR.

WIRE FABRIC.

' Patented July 19,192L

UNITED JSTATES PATENT OFFICE.

CHARLES EHRLICH, 011 mzooxmmynnw YORK; MAXEi-IRLICHI 1mmmrsim1mmon or sa'1nc1mnnnsnxmmcn, nncnmsnn. Y

T0 all wh0m z't may concemr Be it knownthat I, CHARLES"EHnLICH, a citizeri of the United Statesresidingin the borough of Brooklyn, county 0f Kings, city and State of NeWYork, hav e invented a new and useful Improvement in Wire Fabrics, of whioh the folloWing is a specificafiion,

This inventionrelates to a wire-fabri'c for bed-springs the purpose of the inve'nti-on being toprovide a fabric Wlll0h lS made of a eries of interlac ed wire loops, eachseries of l0ops being made from-a si1iglepiece5f wire and each series beingformed with int6rmediate or alternate resil-ient c0nneoting portions, so'that the bedspiing ha s lateral and diagonal resiliency, which is believed-l'to be a new result with this particular type -of bedspfing.

The invention comprises essentially,awire fabric composed of a sebries -of long 'narrow loops which run. lengthwise' of thebedspfing, which are* connected to each other by a series of loops which are adaptecl t0 be deformed 0r bent when strain is put upon them laterally, so that the wire fabric which is obtained Will stretoh laterally. Longitudinal resiliency is imparted to the wire fabric by a series of helioal springs attached to the respectiv6 long loops at the head and foot of the bed, as is well known It is also an important object of this invention to provide a bedspring which presents an unusually smooth upper surface, so that there is n0 tendency for the mattress or bedclothes t0 catch in projections on ehe spring. This smoothness 0f the upper surfac6 is of partieular utility in that type of folding bed in Which the bedsprin is slidable in 01 out.

Other aclvantages 0 the invention will be apparent from the drawings, illustrating several embodiments of the invention; and in which Figure 1 shows a section of the wire fabric as applied to a bed, Fig. 2 is an enlarged top view of a portion 0f the wire fabric, Fig. 3 is a longitudinal section through the spring, and Figs. 4 and 5 are views .of two modifications.

Referring to the drawings, in Which similar reference characters indicate similar parts, the wire fabric is composed of a plurality 0f long narrow U-shaped loops 1 formed by the two side portions 2 connected by the bight 3. The bight portion 3 is a simple bend and is integral with the side portions v Specificatioxi of I.gl:fers Paitexii;

Pat(aiiteid J1y'19 1921.

Aii'plicatlbn'hled Septembar 18, 1919. Serial1l'of324,45i6.

2, fi-Ild"iS bent clownivafdly out of the plane ofthe portion's' 2, as is clearly indicated in Fig. '3.- T-his bending of the bight 3 gives a Spring which is ve'1yflat and smooth 0n both SUILERCES, and 0I'1e that*is of a minimum thickness, 'and is therefore particularly 'adaptecl f-0r *springs f0r folding beds in Which one "spring 'slides relatively t0' an- "other( Fornied integrzilwith the 's'ide portions 2-are plurality of shoruer, broader, 'ar0uateloops4, the side, portions 2 of tha long loops 'bing bent asiridicated at 5 t0 forma neckportidn, and again bent as indicated at 8, ancl at that pointmergihg into tha arcate loops 4 on either sicle. 'The b'ight 3 engages in"the bent"portions 5 and passes'ar'ound and bears 'against th'e u'-nder sicle-of the neck; Thebends 5 and 8 and the loops 4 are all in the alane ofthe long loops.- Thewire' for-ming e arcuat e loops4 need not be of the precismshape shonfn in 'Fig.-2 but maybe bent in cit-he'r shapes out of a Straight line connecting the p'oints 5, 5.

One series of long loops is interlaced with respective long loops 0f anobher series by passing the bights 3 of one series of long loops through the bights 3 of another series of long loops, from below; the several loops are then pulled away from one another until the' respective bights 3 assume the position as shown in Fig. 2, that is t0 say, until the bights 3 are seated in the bent portions 5, so that the sid'es 2 of one long loop are held in the bight of another long loop. Thelong loops 1 extend longitudinally of the spring, While the loops 4 have their greatest lengtl1 extending laterally of the spring. Longitudinal resiliency is imparted to tl1e spring by a series 0 f helical springs 6, conneeted to the bights 3 of the last series of long loops, these Springs 6 being attached to the head or foot of the bed indicated at 7. Lateral and diagonal resiliency is imparted to the spring by virtue of the intermediate connecting loops 4. It will be apparent that if a lateral strain is put.upon the spring, o1 if a diagonal strain is put upon the spring, that the loops 4 would tend to straighten out and that the bends at 5 and 8 would give and would tend t0 straighten out. How# ever, inasmuchas the loops 4 and the bends 5 and 8 are all made 0f 0ne piece 0f more or lass resilint wire, the c'ombined results of all these small deformations is to give a high degree f diagonal arid lateral resil iency to the complete b6c1spring Which is formed 0f d0zens of such 100ps.

' Referringto Fig. 3,'in which the;top of.

the spring 1s at the uppen par t of the figure, it shou1d. be noted t at the springis so assembled that there are no projecting P'ortions on th.e top thereo f. Due to the fach that the bends 5 -und 8 und the-10OP 45 are all in the same plane as the long loops 1 a very flat type of' spring is form6d. These feature s arg of particular u ti1ity in that type offolding bed in which one spring slides relatively to anothef and Where, if there are any projeating portioils, there is a tendency f0r one spring to catch in the o ther 01 for the spring to catchand tear the bedclothes.

Referring to Fig. 4, a mddification is shown in which the long loops 1 are counected to. one another byanintegral coun ectingportion 9 which may be bent ii1to a Plurahty Of similar bends 01' corrugati0ns 10,. the portion 9 bein merged into the si des 2 through the med1um of loo'ps.5.

This particul'ar fOrmation gives a s tructure which'bends ab each loop 5 and bends v in .each 0f the small bentprtions 10, whei1 V the spring is Subj eoted to lateral 01 diagonal diagonal resiliency. v

Referringto 'Fig. 5, the modification there strains, so that the net result Of the i1se of aiarge number of such bent portions' is a spring having ahigh:degreepf lateral and sh0wn is similafto the structure shown in Fig. 2, corresponct'ing part's beingsirnilarly nmbered. In this modification, however, the;connecting 100ps; 4 are made ..s omewhat longer. than:in Fig. 2, t0 form a spring which has correspondingly greater lateral and diagonal resiliency. In this modification the op 4: is b etween ehe-third and one-half of the length'of long loop l. 1

While I hav e illnstrated severziI l=mi56diments of my inventiori, it should be umlersto0d that it may be garried out=inother ways, as definedwithin t he s jope ofthe attached claim. w

. I c1aini asn1y inve ntionz A Wire fabric foia. bedspring Iornid 32 7 a I lurality of long l oqps the side elements of the longloops being feveis elybent ;at their lower e1ids in the plane .of the long loops to form a nec kand being againlbent outwardly in the Plane 0f the longioops;

and"forming a series of arcuate resi1i6nt loops i riterrhediate the respective long loops, in the saine plane with the long loops, the said side elements of the long loops being ;CHARLES EHRLICH;

V connedted afitheirupperends byan integral Dated; Brook1'yig N pt 15,

Images