|Publication number||US2052213 A|
|Publication date||Aug 25, 1936|
|Filing date||Mar 26, 1936|
|Priority date||Mar 26, 1936|
|Publication number||US 2052213 A, US 2052213A, US-A-2052213, US2052213 A, US2052213A|
|Inventors||Branstrator Clem G|
|Original Assignee||Branstrator Body Company Inc|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (12), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Patented Aug. 25, 1936 UNITED Ns'rpfrr-:sl
PATENT OFFICE FLOORING Application Maren 26, 1936, serial No. 70,919
claims. (ci. ,2o-s) This invention relates to improvements in flooring for use in various structures such as vehicle bodies, store buildings, residences and` other constructions wherein a rigid floor of great strength is required An object of the invention is to provide a composite iloor body of metal and wood or a substitute for wood so formed that the metal and wood constituents of the body sustain each other in their relative positions thus to resist flexure of the oor body when placed under stress as when supporting a heavy load. Another object is to afford a thin oor body capable of sustaining a considerable load when supported only around its margins thus to eliminate the necessity of providing underlying supports intermediate its margins. Other objects and advantages of the invention will appear in the following description.
An illustrative embodiment of the invention is shown in the accompanying drawing, in which:-
Fig. l is a perspective view of a metallic reinforce for a composite floor structure;
Fig. 2 is an end elevation of a oor formed in accordance with the invention; and
Fig. 3 is a fragmentary top plan view projected from Fig. 2.
The illustrative embodiment of the invention consists of a ilat slab of uniform thickness and shaped to correspond with the structure (not shown) in which it is used to form the flooring thereof.
The slab is constituted of a metallic reinforce I formed of thin sheet metal shaped so as to provide parallel channels 2, 3, 4 and 5 and intervening contiguous channels E, I and 8. The channels 2 to 5 inclusive are open at the bottom and the channels 6 to B inclusive are open at the top. The vertical walls S, I0, Il, I2, I3 and I4 are common with respect to the corresponding adjacent channels, and the tops I5 of the open-bottom channels lie in a common plane'and also the bottoms I6 of the open-top channels 6, 1 and 8 lie in a common plane spaced from and parallel with respect to the plane of the tops I5.
If desired, the outermost vertical wall I1 of an endmost channel I5 may be provided with a ange I8 that extends in the plane of the bottoms I6 for the purpose hereinafter mentioned. In each of the open-bottom channels 2, 3, land 5 is disposed lling material, preferably constituted of one or more strips of wood I9 that are held compactly in the corresponding channels between the vertical walls thereof, and in each of the open-top channels 6, 'I and 8 likewise is disposed lling material, similarly constituted of one or more strips of wood 20 that are held com- -pactly in the corresponding channels between their vertical walls. When the channels are thus completely filled, the vertical walls of the channels are confined rigidly between the llers of the corresponding adjacent channels and are thereby prevented from buckling when the ooring is strained or stressed because of an overload if placed thereon.
In order that the fillers I9 and 20 are more intimately associated with the reinforce, an adhesive such as asphalt or similar binding agent is applied so as to enhance permanency between the parts of the fillers themselves and between the fillers and the surfaces of the reinforce adjacent thereto. The slab thus formed is solid and of great rigidity as the vertical walls of the channels, although formed of thin plate metal, are firmly confined between the llers in the open top and open-bottom channels so that lateral yielding of the vertical walls when the floor is loaded is circumvented and the slab is maintained substantially in its normal plane.
A bottom for the slab is provided which consists preferably of a metallic plate 2l that is secured in place so as to lie against the bottoms of the fillers I9 and bottoms I6 of the open-top channels.
As a means for securing the plate in place fasteners 22, such as nails, or screws, are inserted through the plate into the fillers. Also, if/desired, one side of the plate 2| may be provided with a flange 23 that is upturned so as to overlap the outer wall 24 of the adjacent channel (2). This ange is conveniently secured against the reinforce by suitable fasteners 25 that are driven through the ange and outer wall into the filling material. The opposite side of the plate, if desired, is provided with a fold 26 that is clinched over the flange I8, thus to secure the adjacent vertical wall of the reinforce against the adjacent ller and provide a reinforced flange by which to secure the slab to the building structure (not shown).
A cover 21 of any suitable material, such as laminated wood veneer or any other floor surfacing, is provided for the slab. 'I'he cover extends over and lies upon the tops I5 of the openbottom channels and the top surfaces of the llers 20 in the open-top channels. The cover is secured in place by any suitable means, such as fasteners 28 that are driven through the cover into the underlying ller material, or the fasteners, if desired, may be driven through the cover and the tops I5 into the filler material in the open-bottom channels, as indicated by 29 in Fig. 3.
Where practicable, it is desirable to make the reinforce ofa single sheet of metal bent so that the open-bottom and open-top channels are formed in alternate arrangement in successive order. Where slabs of considerable breadth are required a number of reinforces may be connected side by side by providing any suitable connecting means (not shown) for their attachment.
In practice, the slabs are preferably prepared to have the required dimensions as to length, breadth and thickness, and shaped to be bodily fitted into place when subsequently installed in the structure where it is to be used.
What I claim isz- 1. Flooring constituted of a reinforce of thin sheet metal, shaped to have alternate open-bottom and open-top channels disposed in successive order, the outer wall of an endmost channel having at its lower edge a lateral flange, fillers disposed in all of said channels adapted to firmly confine therebetween the vertical walls of said reinforce, a plate forming the bottom of said flooring secured to said reinforce and fillers, one side of said plate having an upturned flange overlapping the outer wall of an endmost channel and secured thereto, the opposite side of said plate having a fold clinched over the flange of said reinforce, and a cover extending over and secured to said reinforce and fillers.
2. Flooring constituted of a reinforce of thin sheet metal, shaped to have alternate open-bottom and open-top channels disposed in successive order, fillers disposed in all of said channels adapted to firmly confine therebetween the ver- ,osaaia'" tical walls of said reinforce, a plate forming the bottom of said ooring secured to said reinforce and fillers, and a cover extending over and secured to said reinforce and fillers.
3. Flooring constituted of a fiat slab made up of a reinforce of thin sheet metal shaped to have a series of open-bottom and open-top channels arranged alternately in successive order, fillers disposed in said channels firmly confining therebetween the vertical walls of said channels, a plate forming the bottom of said slab secured to said fillers, and a cover forming the top of said slab secured to said fillers, said reinforce and fillers being confined firmly between said plate and cover.
4. Flooring constituted of ailat slab made up of a reinforce of thin sheet metal shaped to have a series of open-bottom and open-top channels arranged alternately in successive order, fillers disposed in said channels firmly conning therebetween the vertical walls of said channels, and a cover forming the top of said slab secured to said fillers, said reinforce and fillers being confined firmly between said plateand cover.
5. Flooring constituted of a fiat slab made up of a reinforce of thin sheet metal shaped to have a series of open-bottom and open-top channels arranged alternately in successive order, fillers disposed in said channels firmly confining therebetween the vertical walls of said channels, and a plate forming the bottom of said slab secured to said fillers.
CLEM G. BRANSTRATOR.
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|U.S. Classification||52/783.17, 52/694, 105/422, 52/792.11|
|International Classification||E04C5/01, E04C5/02|