US1684614A

US1684614A - Form for concrete

Info

Publication number: US1684614A
Application number: US143873A
Authority: US
Inventors: Francis M Barton
Original assignee: BARTON SPIDER WEB SYSTEM
Current assignee: BARTON SPIDER WEB SYSTEM
Priority date: 1926-10-25
Filing date: 1926-10-25
Publication date: 1928-09-18
Anticipated expiration: 1945-09-18

Description

sept. 18, 1928. 1,684,614

F. M BARTON FORM FOR {IONCRETE Filed Oct. 25. 1926 2 Sheets-Sheet l A" A j,

sept. 1s, 192s. I 1,684,614

E. M. BARTON FORM FOR CONCRETE Filed Oct. 25,I 1926 .2 Sheets-Sheet 2 Patented Sept. 18, 192.8. n '-l' UNITEDY STATES FRANCIS SYSTEM, 0F CHICAGO, ILLINOIS, A CORPORATION 0E ILLINOIS.y

. FORM FOR CONCRETE.

Application mela october 25, 1926. serial No. 143,873.

The invention relates to hollow sheet metal forms for concrete floor constructions.

One object of the invention is to provide an improved form of this type which is comn posed of units which maybe nested in shipment and assembled at the place of installation, and which, when assembled, will be rigid. Another object of the invention is to provide an improved form of this type in which the unit-sare formed of continuously corrugated sheets and in which the corners are stiffened or reinforced by integral formations.l Another object of the invention is to provide an improved end plate for the forni of corrugated metal. Another object is to provide an improved interlocking connection between the top and the sides of the form.

The invention consists in the several novel lfeatures hereinafter set forth and more particularly defined by claims at the conclusion hereof.

- In the drawings: Fig. 1 is a vertical section through a floor embodying the invention. Fig. 2 is a section of the floor on line 2 2 of Fig. 1. Fig. 3 is a section on an enenlarged scale talrenon' line 3 8 of Fig. 2. Fig. 4 is a section on an enlarged scale taken on line L -l of Fig. 1. Fig. 5 is a perspective of the form, the cover being separated for illustrative purposes. Figs. 6 and 7 are sectional views on an enlargedv scale through one of the upper corners of the form. Fig. 8 is a perspective of a portion of one of the upper corners of the form.A Fig. 9 is a detail section, showing the 'formation at the lower corners of the form.

The invention is exemplified in a concrete floor construction composed mainly of the beams 6 and a slab V7 kextending over and uniting the beams to form an integral stucture. The beams are usually reinforced by rods 8, extending lengthwise thereof and upwardly to a point in or adjacent the slabs. The formswhich are disposed between the beams are'madefof sheet. metal and comprise upper and lower members which, when secured together, vform a hollow rigid box-like structure. Each of the upper and lower members is formed of a sheet of metal corrugated throughout its entire area. The lower member of each form comprises a bot tom 9 and integral upwardly extending and flared side walls 10 and 11. The corruga tions in the bottom are parallel and extend between the sides `10 and 11, thermetal being formed of a continuous series of alternating and reversely curved crowns 9, 9b which are continued vertically in the side walls 10 and 11 to the upper margins thereof. In order to adapt the bottom to serve as a base or lath which is adapted to retain plaster 13, the transversely extending portions between the crowns are sheared, as at 9c, and the sheared tongues 9d are bent outwardly to form claws in the grooves in 'the outer face of the sheet. The claws 9d on one side of each groove are staggered with respect to the claws on the opposite side of the groove, so that each claw will coact with a corrugatedv uncut portion' of the sheet in retaining the plaster. rln forming the lower vmember'by` bending the sides relatively to the bottom, the metall in the grooves at the corners" is deflected outwardly or downwardly, as at- 9e, to permit the corrugated sheet to be bent without rupture, as more fully set forth in an application filed by me of even date herewith,A Serial Number 148,062, to which reference may be had for a more detailed description of the method employed in producing the deforma-py tion. As a' result ofr thus deflecting the.,

metal at the base of the grooves, the corner' i 1,684,614, PATENT OFFICE.

M. BARTON, OF CHICAGO, ILLINOIS, ASSIGNOR TO BARTON SPIDER WEB is rendered exceptionally rigid, andA pockets y QE are produced which will cause the plaster' to be effectively keyed around the' lower corners of the form.4 The walls 10 and 1.1 are Hai-ed upwardly so Ythat the concrete beam will be thicker adjacent its lower end than at its upper end, so the maximum will be disposed at the lower portion of the beam where the greatest stresses occur and the minimum adjacent the top of the beam. This extends the upper corners of the form to displace concrete which has little supporting value.

Each top member of the form consists of a sheet metal plate 17 which is corrugated from side to side and parallelly to the corrugatio-ns in the bottom 9 of the form. The side margin of each plate 17 is bent downwardly to form 'a flange 17l adapted to lap the' upper portion of the sides 10 fand 11.l The corrugations in theftop are continued to the ends of said flanges, so that they will be corrugated conformably to the corrugations in the sides 10 and 11. The flanges are integral with the corrugated plate 17 and are formed by bending the plate in accordance with the method set forth in the aforesaid application No; 143,062, and so as to'leave the deformed portions-17b across the corners of the grooves in the outer faces of the sheet to render the corner rigid. The crowns at the inner faces of the flanges 17a are sheared, as at 17, and bent inwardly, as at 17d,'to form tongues which are adapted to lap the inner faces of the upper margins of the sides 10 and l1, so that the sides will be laterally locked between the flanges 17a and said tongues.` These top members form a support for the floor slab 7 and also serve as a connection between the upper `ends of thesides ifi 10 and 11 ofthe lower member of the form so they will not spread.

Each form is usuallybuilt up of a plu` rality of' sections,` each comprising upper and lower members, the `contiguous ends of' which lap or extend into one another so that the form may be extended the full" length ofthe beam or of the spaces desired between the beams and built up of small units which can be conveniently transported andl handled. The upper flare on the sides of the lower members permits them to telescope into one another. Y Y

The endof each form is usually closed by al sheet metal plate 22 'which is corrugated horizontally, so that it ywill render the ends of the form comparativel stiff. This. plate is formed of a continuous y corrugated sheet andhas its margin sinuously sheared, Vas at 22, so 4.that its edges will conform throughout its length to the inner faces of Ythe aligned grooves inthe inner faces of the bottom and sides 10 and 11. The upper and lower margins of the plate 22 'are extended into grooves in the top and bottom of the form, so that it will bev locked on all four sides to the form when it is assembled therein.` This formation effects a fit between the plate and the member which forms a closure and renders unnecessary any special formation or die work on the plates for an interlock between allmargins of the plates and the top, sides and bottom of the form.

In practice, the formmembers ,are-fab-V ricated at shops and shipped in stacks `to i. the place where they are to be installed.

The flared formation of the bottom members permits them to be telescoped or closely stacked for convenience in transportation or storage.V At the place of installation, a suitable staging is'erected to support the forms.Y

hollow in the concrete. After the forms are i in place, the concrete ispoured between,

around and over-'the forms to form an integral beam and floor construction, aswell1 understood in the art. Next, the plaster 1s applied directly to the bottom of the forms* and the beams, the claws 9d serving to retain the plaster. 1

The invention exemplifies a form for a concreteV floor construction in which the members are formed of continuously corrugated sheets with the corners deformed to;

render "them rigid and 'so vthe "metal will not be ruptured where it `isYbent-to form `the i corners; also a form in which a completelyA corrugated Yend sheet is interlocked'y with* the top and bottom lmembers to `stiften the end of the form.

The inventionis not to `be understood as l restricted to the details set forth, since these may be modified within Vthe `scope of the appended claims, without departing from the spirit and scope `ofthe invention.

Having thus described the inventiomwhat I claim as new and desire to secure by Letters' Patent, is: i i

1.` A sheet metal form foir concreteeomprising a bottom` and sides having a con` tinuous series of eorrugations extending upr wardly in and tothe upperedges of the sides, a cover consisting of a sheet ofmetal'gprm vided with marginal flanges having a vc011- tinuous series of corrugationsconforming to and `fitting the corrugations in and 'lapping the sides. '4 i Y 2. A form-for conerete'comprising a single sheetof metal Tbent to` form allbottomisand sides provided with acont'imuous series vofV corrugations extendingu wardly 4in and to the upper edges `of Vthesit es,a cover'consist lng of a sheet `of lmetal provided with mar` ginal flanges to lap the `outerfaces f the? sides `and having a` series ofcorrugations conforming to and fittingthe corrugations of y the sides.

A form for concrete cmpi'isingasingle sheet of metal bentzto` form a bottom and sides and `having Y a continuousy series of rcrrugations extendingwacross the "bottom Vand upwardly `in thesides to the upper edges. thereof, a cover consistingiof' a shtyof metal provided with marginal flangestolap the sidesfhavmga continuousseriesof cora rugations extending continuously `across it and downwardly in theflanges to theirflower` edgesand conforming to and fitting ,theeorf rugations of thesides i 4. A sheet metal form for concrete comi-V` Y' prisinga` bottom andsides-having acontinuous series of oorrugations` ektendin `wardly` in,` and 'to the up erledges o the sides. a :cover consisti'ngo asheetof metal provided with marginalangesr ihaving av continuous series of corrugatins conforming to and fittingnthe; eorrugations in and flaplav i ping the outer face of the sides, and means to secure the sides against inward deflection.

5. A sheet metal form for concrete comprising a bottom and sides having a continuous series of corrugations extending upwardly in and to the upper edges of the sides, a cover consisting ofa sheet of metal provided with marginal flanges having a continuous series of corrugations conforming to and fitting the corrugations in and lapping the outer` faces of the `sides and means integral with the lianges and lapping the inner faces of the sides respectively to sec-ure said sides against inward deflection.

6. A sheet metal form for concrete comprising` a bottom and sides provided with a continuous series of corrugations extending upwardly toy their upper edges, and a cover consistng of a correspondingly cor'- rugated sheet having flanges bent to tit and lap one face of the corrugated sides respectively and having integral tongues to lap the other faces of the sides.

7. A form for concrete comprisirng` a single sheet of metal bent to form a bottom and sides, with a continuous series of corrugations extending across the bottom and upn wardly in the sides to their upper edges, and

a cover consisting of a correspondingly corrugated sheet having flanges bent to vlit and lap one face of the corrugated sides respectively and having integral tongues to lapthe other faces of the sides.

8. A sheet metal form for concrete. con.- prising a bottom and sides provided with a continuous series of corrugations extending to their upper edges, and a cover consisting of a correspondingly corrugated sheet having flanges bent to fit and lap one face of the corrugated sides and having integral tongues in the crowns of the corrugations at the inner faces of the flange to lap the other faces of the sides.

9. A sheet metal form for concrete comprising a bottom and sides and having7 a series of corrugations extending across the for May, 192e.

bottom and throughout the sides, and an end plate continuously corrugated to its ends and having its ends curved transversely of the corrugations to fit in the grooves of the corrugations in the sides.

10. A sheet metal form for concrete comprising a bottom and sides and having a continuous series of corrugations extending across the bottom and throughout the sides and a correspondingly corrugated cover pro vided with flanges to top the. sides, and an end plate continuously corrugated to its ends and having its ends curved to fit in the grooves of the corrugated sides and having top and bottom edges litting in the grooves of the top and bottom respectively.

1l. A form for concrete comprising ay single sheet of metal bent to form a bottom and sides and having a continuous series of corrugations extending across the bottom and throughout the sides, the bottom being provided with outstruck claws disposed in wardly of the plane of the bottom crowns 0f the corrugations.v

l2. A form for concrete comprising a single sheet of metal bent to form a bottom and sides and having a continuous series of corrugations extending across the bottom and throughout the sides, the sides of the corrugations in the bottom being provided with outstruc-k claws disposed inwardly of the yplane of the outer crowns of the cor-y rugations.

18. A form for concrete comprising a single sheet of metal bent to form a bottom and sides and having a continuous series of corrugations extending across the bottom and throughout the sides; the sides of the corrugations in the bottom being provided with outstruck claws disposed inwardly of the plane of the outer crowns of the corrugations, the claws in the sides of the corrugations being staggered.

Signed at Chicago7 Illinois, this 10th day FRANCIS M. BARTON.

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