US 2029024 A
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1936- c. l. JUSTHEIM AUTOMOBILE INSULATION AND FLQCR BOARD Filed Sept. 18, 1933 Patented Jan. 28, 1936 PATENT OFFICE AUTOMOBILE INSULATION AND FLOOR BOARD Clarence I. Justheim, Salt Lake City, Utah Application September 18, 1933, Serial No. 689,909
My invention relates to bodies and more'particularly to automobilebodies and has for its object to provide an insulated body for automobiles or other vehicles such as aeroplanes, trucks, busses, etc.
A further object is to provide a body which will throw ofi either heat or cold and which will retain either the heat or cold within the car in its interior.
A still further object is to provide a dead air space within the body between all sides, bottom, top, and rear, wherever metal or floor boards occur and this dead air space is divided into separate dead air spaces by very thin sheets of highly polished metal, such as aluminum or duraluminum, or other sheets of material coated with a highly reflecting non-corrosive material.
This metal may be embossed, peened, or stamped into concave and convex surfaces so that the concave surfaces will concentrate the rays of heat or cold and the convex surfaces will diffuse the rays of heat or cold, and the concave surfaces will preferably be on the inner side of the sheets of metal toward the interior of the body.
A still further object is to provide a floor board of such construction as will throw off the heat of the engine and the heat of the surface of the road in hot climates and will at the same time be cate like parts throughout the several views and' as described in the specification forming a part i of this application and pointed out in the appended claims.
In the drawing in which I have shown the best and most preferred manner of building my invention Figure 1 is a diagrammatic view of a vertical section of an automobile body showing single lines for thickness of metal and for the insulation sheets.
Figure 2 is an enlarged section of the floor board in front of the car and of the dash panel showing the construction of the board with the sheets of insulation shown therein.
Figure 3 is a sectional view of one portion of one 'of 'the sheets of metallic insulation showing the concave and convex surfaces thereof.
Figure 4 is an enlarged sectional view of one end of the foot or floor board C.
Figure 5 is an enlarged sectional view of one end of the floor board D.
In the drawing I have shown the body as made of two sheets of metal A. and B, a closed or sealed air space therebetween and within this air space I then mount sheets of thin aluminum l and 2, with the surfaces of the aluminum peened, embossed, or formed concave on one side and convex on the outer side as shown in Figure 3, with the concave segments 3 to concentrate the rays from within the interior of the body and the convex segments to deflect or diffuse the rays which strike the body from the exterior.
The sheets A and B are held apart by either bending one sheet to form a peripheral flange 6 therearound as shown in Figure 2, or by spacing the edges of the two sheets apart by a thin strip of metal.
In the case of the floor boards at the front of the car which must be made so that they can be removed, the board C is made with the two sheets 9 and I0 spaced apart by the flange II and carrying the reflecting sheets of metal l2 and I3 therebetween.
The board D which is under the feet in the front is made of the two sheets l5 and I6 spaced apart by the edge pieces I! and I8 and reinforced through the medial portion by a spacer and strengthening strip of metal l9, with the metallic reflecting sheets 20 and 2| carri'ed between the two sheets l5 and H5.
The proper openings will be provided through the floor boards for the driving instruments to be placed therethrough and proper means will be employed to secure the floor boards in place.
It will be obvious that wherever needed reinforcing strips or spacer strips may be inserted in the body or in the floor boards.
Also more sheets of reflecting metal may be used if necessary.
Having thus described my invention I desire to secure by Letters Patent and claim:
1. In a floor board for automobiles, the combination of two sheets of metal having one flanged to secure. them together, but spaced apart over the entire flat or curved surface thereof; sheets of very thin metallic reflecting material carried between the two sheets with one side of the re fleeting material formed with concave facets and the other side with convex facets to diffuse the heat and cold with sealed air spaces between the sheets and the metallic reflecting material.
2. In a floor board, the combination of two sheets of material; other sheets of very thin refleeting material carried therebetween said sheets being formed with concave and convex reflecting facets therein to concentrate and diffuse the heat and cold rays; and means to seal the spaces between the two sheets and the reflecting material into rigid closed air spaces and to hold the sheets relatively spaced apart.
CLARENCE I. JUSTHEIM.