US 948414 A
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Asired cross sectionall a'rea and' shape. In `the form-shown the ribs are round and pro- Noiaitis' ELMOREIQLABK, or rLAiNv-ILLE, CONNECTICUT.
'Seele Toall whom 'it may conce-nn: A
B et-knoivntliat I, Noiciiis Enitoini Gmini, a'citzenof the United States, residing at Plainville, 11i the countv ofHai-tfo'rd and -State .of Connecticut-,- have invented certain new and useful Improvements in Expanded -Metal, of which the 'following is 'a specification.
l' My inveiition relates to improvements in expanded metal fabrics.:
One object of the invention islto provide lafabric which can be manufactured econoinically.A
Another object is togive great strength' -to the fabric.
l.The'accoi'npanying single sheet of drawings illustrates one form of! the invention.
It'will be found highly attractive in appearaiice. The fabric consists of bentstrips connected. at' intervals 'in alternating ar-i .rangeineiit, .some of the strips -being 'of greater cross sectional larea than t-'lie others.
Figure l, is across sectional view 'of a slieetof material slitted preparatory to ef:-
pans'ion into my improved fabric. Figl'l, is a. plan view of the saine. Fig. 3, is a 'planview ofthe expanded nie-tal fabric of .my invention.
The fabric is formed by iii-st slittinga slieetin staggered or .alternating arrangement and then stretching or expanding it. Figs. 1 and 2 show the arrangement of slitf'ting.' The raw material is what is known as a-rolled section consisting of webs such as Land 2 and ribs such as and trof the de- 'ect above and below the planeot'thewebs.
referably the stockis slitted so that ea'ch rib such 'as 43 and the narrow flanges such'- as. 5 and 6 constitute one of the strips. The
other strips 7, 8 and 9 are formedv from the' web 1 b slitting in staggered arrangement by V-s'uita le cutters. Preferabl. no :stock 'is removed in slitting but l Wish it understood. that' I' consider inyinvention to cover a lpr'oduct found as herein set forth evenif .some of the' material is cut-'out by' perfof 'rating or otherwise.
been. ,slittedv as described it is stretched 'orl lVhen the stock has expanded by suitable mechanism. The forni after*expansionl will depend somewhat upon fthe nature of the expansion process. Pref i Specification of Iiette'rs P'atent. applicati@ inea may 29. 1908. serial No. 435,730..
EXPANDED erably thestrips 3, 7. 8,.-9; 4etc. extend in the general directionA of length of the fabric;
The larger strips such tis-3 and 4 constitute longitudinal rodsor bars and the. 1i liter strips such as i', 8 and Q -form reticu ated.
connecting webs. The proportions of.- the ribs and ivebs may be varied and the slit- 'ratenea nette, '191'0.
ting may 'be such as to produce a greater or smaller number of tlieQ-webstrips rela- 'tire to the rib strips ,if desired. So also the relatiye length of the slits may begcliangeda. fand the expansion'carriedto agreater' or less extent. This will varythe size :oftlie openings and-the' angle ofthe4 bends lin the strips. j Thea'ib stri s. tis-.shown are all parallelivhile the We strips :zigezag back and forth between.
Obviously the fabric las illustrated may be subsequently formed; curved. or suitably treated fornspeci'al purposes as arches, beams 'and' columns.
11n-in expandednietal .fabric consisting of longitudinal zigzag strips connected in alternating arrangement, some of said strips being of greatercross 4sectionalfaifea than AAthe others. c
:2. An'exp'anded m'jetal fabric consisting.
of longitudinal zig-zag 4.strips integrally connected in alternatingarrangement, some of the. strips being of greater thickness than the others.
B QAn 'expanded meta-l fabric consisting of' longitudinal zig-zag strips 'integrally connected. in\ alternating arrangement some.
of the strips being of greater4 thickness than the others, the iiiteriiiediate-strips alllying iii the same plane. A
.Jf. An expandedV metal-.fabric consisting of longitudinal. zig-zag strips integrally connected in alternating' arrangement some of the strips being of greater thickness than the others and rounded .on at .least one surface.. f
Anexpanded' metal fabric consisting of longitudinal; zig-zag strips 'integrally ,connected iii alternating arrangement sonic -of the strips being of. eater thickness than.
the others' and ro'uiide 'onv bothl surfaccs. (Lern expanded metal fabric consisting of parallel zig-.zag beiit ribs andreticulatcd connecting ivebs of less thickness.
.- .\'ii expanded nietal fabi-ic consisting'