US843726A - Expanded metal structure. - Google Patents

Description

. R WHR" EKPANDBD METAL STRUSTU13-JSi Uyl/ 3 SHEETS-SHEET l.

APPLIUATON FILED JULY 27.' 1905.

l l/m5,

, ATENTED FEB. l2,

P. WHITE.

EXPANDBD META L STRUTURE.

APPLIOATION FILED JULY27. 1906;

3 SHEETS-SHEET 3.

intrii finir ein d PATENT r. rr nrs, or osLni/VnLn--NEW JERSEY, Assienoii To THE rrsnrseernie ooMPANY, or YoUNGsroWN, orne, A oon- (Pini 'Iifl'y (.'IC'Y7.' oivn thi t i, ALEXANDER l). WHiTE, l t I ted States, end s resident Certain nev end useful s, oi which the oliowingis a speeifieexn.

his invention reletes to expended metel strnetnres, more particularly to freniioreing Specification of Letters Eatent.

es. county, State of New. Jer-f xpsnded Metal Struik members suitable for embodiment in confV nsvingthe gener-el inode of operation subely hereinafter fully described end eli.- .ned in this speeiiiostion `(ind shown in the Figure 'l is e top plsn View oi e blsnlw Fig. is side eleve-tion of the blank expended. Fir* 3 is e side elevation of e similar expendstruct re. netlier blank.

a. Fig. 5 is e side elevation of Further objects of the invention Willhere# Fig. e is e top plan View ofv the blenk expanded. Fig. G is e side elevsn of :i similar Construction. Fig. 7 is e elevation of a inodilied .tor-n1 of rein forcing nieniber. Fig. 8 is n side elevation illnstramtin,l the reinforcing member in use. Figs. 9, l0, il, and l2 are detail trz'tnsyerse seetional Views oi' blanks.

Referring to the drewings, in Fig. `l s. flank is shown from Iwhich the reinforcing Qieniber or expended metal structure is nede Y. lt is obvious that the blenk itself either be e ilat sheet of metal, hewn J. or it muy be provided ivi th its or olsny desired Cross-section, es shown larp. il. Figs. i() and l? show ribs B t- C modified constructions. bers D are round in Cross-sec tion and oon- .oeeted by Ythe web, portion lil, which is suit ably sliited et F and G toI forni connecting n'zegnbers ll, These cnneoting members H sreeonneeted it each end to the blank, so that the ribs-D iney be seperated, es shown in E. 2, to 'Sernin' reinforcing member.

In Fig. l the ribs Patented Feb. 12, 1907.

vPreferably the slitsF end are provided' in theblank extending in each direction from vthe center, "so that n double-ineniberis Aformed, ns shown in F ig. 2,when the rods or ribs D ere separated; but the reinforcing ynieinber as s Whole'ny'be single instesd of double-that is,` one-half of the structure shown in ig. 2, for instance, may be used. Preferably, also, the ties H are eut so that they become longer proceeding from the oenter outwardly. Therefore the top'inernbers 'v-D are not parallel to the lower member D, 'but in this instance slant toward theleenter -eitlier in e straight or lcurved line. If desired, the inner ends l of the tgp members D may be connected by e suitable sleeve J; held in position in' any desired manner.

in Fig. 3 s structure is shown in Whiob the upper 'members K and lower member 1J are `*not thickened; but the'struetureis cons trueted from s sheet of .metal of 'the seine thiol@ ness throughout. It desired, the inner ends K. of the members .K mayv be ooneoted by overlapping plates O. 4

In Fig. 5 s truss-like structure is constructed out of s blsnkwhieh is out as shown in 'Fig 4. The blank eoinprises the web por# tions P,'eoinieeted bythe ribs or rods Q.. Y The slits R and S are so eut that ties or con# nesting inenlbers T ere formed, which oonneot the rods Q and preferably increase in length from the center outwardly from each side of the center, so that a truss-like member is formed, es shown in Fig.` 5, when the bars are sepa-rated. If desired, the truss-like structure insyfbe formed from e. bla-nk of the seine 'thickness throughout, as shown in Fig. 6. In both Figs. 5 and 6 the upper members Q are eut so that the cross-sectional eres increases from the center in the direction of thei ends. The lower members diminish in cross-section as the ends are approached. This disposal of the metal is very desirable to provide for the stresses when the metallic. structure is used to reinforce eonerete,

In Fig. 7 the slits in, the blank are so out that the ties or connectors U are staggered when the side or bottom members V ot the blank are moved endwise to open out the structure. 'My invention Irelates to -thst-'eless of eX-' pended inetel str'netnres in .which the experi sion resulting fiore the openingl out of .e

IOO

known that the stresses `With ribs or slats which lorm the lattice por-y tions or a. truss.

I do not claim to be the original inventor of expanded metal trusses, there being a full disclosure of lthe basic idea of the expandedthc patents to C. B. lVhite,

metal truss in L Nos. .689,938 and 670,827. My present 1nvention, however, relates to certain improve ments and modifications cn said patents, which modifications are of great importance inthe practice ol' the art for which these'expanded truss-like structures are aifailable,

particularly the reinforcement of concrete bodies designed to carry heavy loads and resist. certain stresses, For instance, it is Well in a concrete beam or slab 'follow certain Well-defined lines, and the object ot my these stresses with a .proper disposition of the metal Wlien embodiedin the concrete construction. In a beam or girder, for example, the tensional stress at the ends Will bc near the top; but it Will descend as it approaches the middle of the beam, from which point it will ascend to the opposite end. Hence my aim is to provide a metallic structure ot ascending and descending ineinbers of a trusslike'fo'rm to accommodate the lines ot tension when the metal is embedded in concrete, one important feature being the fact that myeinve-ntion permits these coperating truss-like unitsoppositely .arranged to be made out of a single integral piece of 'metaL Furthermore, any desired number of the units shown may be unit-ed in ie structure. 'In `such cases Where the use of structures containing these truss-like units is desirable the greatest tensional strain will be in the lower part of the centerot the beam. Therefore more metal is required immediw ately at the center, and this requirement can be readily met by leaving` uncut and undisturbed the metal in the central portion of the blank. Frovision can be also ina-dc for the.

. variation in the stresses from the center to- Ward the ends. For example, it 'it isI desirable to increase the metal in thc top member from the center toward the ends this result can be readily accomplished as shown in Fig. 4, representing the blank, and by Fig. 6, representing one of the forms of the finished product, this distribution ci the metal being effected by suitable arrangement of the cuts in the blank. In like manner the size ofthe slats which provide for certain stresses is also regulated.

For the'pnrposeof simplicity and clearinvention is to provide for.

ness in distinguishing the different parts oi these structures in the claims I prefer to call the longitudinal parts fmembers, members being, for instance, the parts represented in Fig. 2 by the letters VD and D.

The shorter parts which connect or tie these' designate as slats77 or members together I by the letter H in tie pieces, as shown Fig. 3x n While these expanded metal truss-like structures may be used for masonry, as described, the invention is not limited to snch these use, as they may be 'found very desirable for many other purposes. y

I claim, anddesire to obtain by Letters Patent, the followingz' 1. An expanded metal construction comprising outer members extending at an angle to each other connected by a plurality of tiepieces, the entire structure made of a single piece of metal. x

' 2. An expanded metal construction comprising outer members extending at an anglev-v to each other connected by a plnrality of tie l i pieces which progressively increase in length,n theentire structure made of a single piece of metal.

3. An expanded metal construction comprising outer members extending at an angle to each other, and tie-pieces integrally connected to each member, the entire str-dettare made of? a single piece of metal.

Il. An expanded metal construction comprising opter members extending at an angle to each other, and tie-pieces integrally con-- nccted to said members and extending substantially parallel to cach other between said nicinlxas, the entire struct-arc made of a single piece of metal;

5. fin expanded metal construction comprising a longitudinal member in one plane, a plurality ot longitudinal members in other plane, both arranged at an angle to said 'lirst member, and tie-pieces connecting said first member With the other members, the entire structure made of a Single piece of metal.A

(i prising a longitudinal member or base, a plu rality of members arranged at an angle to the base and extending downwardly and in-.l

An expanded metal construction com-` IOC Hmade of a singlepece of metal plane from the base and arranged end to end, and inclined in opposite directions'l'rom the center and sets of tie-pieces connecting the. .base with said members, the entire structure 9.' An (.rxpended metal constrncti'oncomprising longtudinal memberor base, longitudinal members in a different plane from the base and arranged end to end, and inclined. in opposite directions from the center and sets of diverging tie-pieces connecting the base with said members, the entire structure made of a single piece of metal.

10. An expanded metal construction comprising a longitudinally-extending member or base..longtudinal members in a different plane from the base increasing in cross-sectional area from the center outwardly, and sels of tie-pieces connecting the base with said members.

l l. An rxpanded metal construction comprising a loiigitudinally-extending member or base decreasing in cross-sectional area in each direction from the center outwardly, longitudinal members in a difl'erent plane from the -base increasing in cross-'sectional area from the center outwardly, and sets of tie-pieces connecting the base with said members;`

12. An expanded metal construction ccmprising a longitudinally-extending menlber or base, longitudinal members, nach extending at an angle to said base, and sets or' tiepieces Aconnecting the base with said members, all of said parts being integral.

13. An expanded metal structure consisting el a main base member and a second member in another plane, the said second member being inclined in opposite directions from the center, so that the distance between the second member and the base member increases from the center toward the ends, the two members being tied together with slatsI i the whole structure being integral. l

14. An expanded metal structure, consisting of a main longitudinal straightmember, and an inclined second member in a' different plane, both members being connected tcgether with slats or ribs, the Whole structure being integral. v

15. An expanded metal structure, consisting of two main members in different planes connected With slats, the main members diverging so that the distance between them is greater at one end than at the other end, the Whole structure being' integral.

16. Anexpanded metal structure, consist- 'mg of a main longitudinal member, two

members in another plane, said tivo members being oppositely inclined so that the distance between them and the main longitudinal member increases as theouter ends are approached, the inclined members being tied t'o the main member with slats, the Whole structure being integral.

17. An expanded metal structure, consisting of a main men'iber'serving as a base havlng a portion in the center uncut, and two members oppositely inclined from the cen-- tral uncut portion, so that the distance between them and said main base member increases towardthe outer ends, the said two members being connected With the main base inen'iber by slats, the Whole structure being integral. i

15. An expanded metal structure, consisting oi a plurality ofmain members in one plane connected with a main member inlanother plane, the said members being connected with slats which increase in length progressively from one end to the other end, the Whole structure being integral.

`In testimony whereof I have signed this specilication inthe presence of two subscribing Wi tnesses.

ALEXANDER P. WHITE.

Witnesses:

OLIN A. Fosrnn, Lne J. MATTY.

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