US1468573A - Heat-insulating wall - Google Patents

Description

Sept. 18,1923

C. F. MAYER HEAT INSULATING WALL Filed June 2'7, 1921 QQMQ 3x W,MY\/\M Patented 5ept. 18, 1.511;"

@ARL F. MAYER, 01E

ATENT FFHE OHIO, ASSIGNOR TO THE SWARTWOUT comm, OF l 0M0, A CORPORATION OF OHIO.

1 T-INSULATIHG WALL.

Application filed June 27, 1921. Serial No. 480,586.

To all whomit may concern:

Be it known that I, CARL F. MAYER, a. citizen of the United States, residing at Cleveland. in the county of Cuyahoga and State of Ohio, have invented a certain new and useful I Improvement in Heat-Insulating Walls, of which the following is a full, clear, and exact description,'reference being had to the accompanying drawings.

This invention relates generally to heat insulating walls, and more particularly to a sectional heat insulating wall that is espgially suitable for use in various kinds of ovens such, for example, as 'core ovens; enameling ovens; drying ovens, etc.

Heat insulating walls commonly used in constructions of the foregoing clam are composed of inner and outer metallic plates that are separated by insulating material, and the walls are usually made in sections to facilitate manufacture, transportation and handling; and to properly maintain the efficiency of the oven it is essential that the joints between the wall sections be of such nature as will minimize the transmission of heat from the inner to the outer side of the wall. a

The objects of my invention are to provide a sectional heat insulating wall that is comparatively simple and inexpensive of construction and wherein the opposed edges of the wall sections or slabs are preferably substantially identical and so constructed as to avoid metallic continuity between the inner and outer sides of the slab; to provide, with such a slab construction, means for connecting together the adjoining edges of adjacent slabs in such manner as to eflectually preclude the passage of heat from the inner to the outer side of the wall; to provide a joint of the immediately foregoing nature which permits of expansion and contraction of the connected slabs without affecting its eflicienc-y and appearance; and to provide a construction for oven wall sections or slabs through which assembling of the slab constituents is facilitated, and the disassembling thereof is rendered convenient. to the end that the insulation of the wall slab may be easily inspected and replaced when occasion requires.

The objects above enumerated, and others which shall hereinafter appear, are attained in the embodiment of the invention illustrated in the drawing accompanying and forming a part hereof and wherein Fig. 1 is a fragmentary perspective view of an oven wall, showing adjoining slabs or sections constructed and connected in accordance with my invention; and Fig. 2 is a sectional view showing adjoining slabs connected by a joint irlicorporating a modified form of finishing p ate. I

The wall slabs or sections A and B are substantially identical, and each comprises inner and outer metallic plates 1 and 2 that are properly spaced apart, and the space between these plates may be filled with a body 3 of insulating material, such as asbestos, the lateral edges of the body 3 terminating short of the corresponding edges of the plates 1 and 2, and edge strips 4 of channel formation are inserted between the projecting edge portions of the inner and outer plates with their side flanges 5 parallel therewith and insulated therefrom by strips 6 of suitable insulating material, such as asbestos. The flanges 5, and adjacent edge portions of the plates 1 and 2. have wrapped about them a second strip 7 of similar insulating material, and these parts are eflectually clamped together between the inner and outer flanges 8 and 9 of metallic bind ers 10 that are U-shaped in cross section and, preferably, frictionally engaged with the above mentioned parts. To hold the binders against too easy a dislodgement, they and therplates 1 and 2 may be provided with cooperating retaining means, such as re istering depressions 11, while the foregolng construction provides a substantial mechanical connection between the inner and outer plates 1 and 2, it aflords an eflectual insulation of the plates from each other. Furthermore. inasmuch as. the binders 10 are frictionally engaged over the edge portions of said plates, and over the flanges 5 of the edge strips 4, with yieldable insulating material between them, the parts are rmly clamped together, although they may be conveniently separated by removing the binders 100 when it is desired to inspect or re lace the body 3 of insulating material.

n assembling the wall, the slabs are arand elements 15 of suitable insulating material are engaged within the channel shaped edge strips of opposed slabs so as to properly align the slabs and hold them in correct relative position. In Fig. 1, I have shown finishing plates 16, having their lateral edges turned over and inwardly for cooperat on with the edges of the outer flanges 9 of binders 10, as-applied to the binders to conceal the'joint. The joint thus constructed eifectually holds the adjoining slabs in a common plane, and permits a practical degree of expansion and contraction of the slabs without in any way affecting the character or appearance of the joint.

With the form of finishing plate shown in Fig. 1, it is necessary to slip the plate endwise over the joint after the slabs are set up, unless one of its edges is flanged inwardly after the "other is applied, which is a more or less undesirable operation. In Fig. 2, I have shown a modified form of finishing plate 17 which may be applied to one slab beforethe adjacent one is set up, obviating the need of feeding it endwise over the joint, thus making it more desirable of use under some circumstances.

Havin thus described my invention, what I c aim is:

1. In a heat insulating slab, the combination of an inner and an outer metallic plate, a metallic edge strip disposed between the edge portions of said plates, means separate from said plates and edge strip for connecting them together, and means .for insulating the foregoing elements from each other.

2. In a heat insulating slab, the combination of an inner and an outer metallic plate, a metallic edge strip disposed between the edge portions of said plates, means separable from the edge strip and plates for binding them together, and means insulating the foregoing elements from each other.

3. In a heat insulating slab, the combination of an inner and an outer metallic plate, a channel strip disposed between the edge portions of the plates with its side flanges substantially parallel to said portions, means insulating from each other the side flanges of the strip and the adjacent side portions of the plates, and further means separate from said arts for connecting them together.

4. In a heat insulating slab, the combi nation of an inner and an outer metallic plate, a channel strip disposed between the edge portions of the plates with its side flanges substantially parallel to said edge portions, binders that are U-shaped in cross section engaged about said edge portions and flanges, and insulating material interposed between said flanges and edge portions and between the last mentioned parts and the binders thereby to interrupt metallic continuity between the inner and outer an outer metallic plate, a channel strip disposed between the edge portions of said plates and facing outwardly so as to be in opposed relation to the corresponding element of the adjacent slab, means binding togethe and insulating from each other the flanges of the channel strips and the ad jacent edge portions of the plates, and an element comprised of insulating material occupying the opposed channel strips of adjacent slabs thereby to hold said'slabs in a substantially common lane.

6. In a heat insulatlng Wall, the combination of a plurality of slabs arranged edge to edge, each slab comprising an inner and an outer metallic'plate, achannel strip disposed between the edge portions of said plates and facing outwardly so as to be in opposed relation to the corresponding element of the adjacent slab, binders that are U-shaped in cross section embracing the flanges of the channel strips and the adjacent edge portions of the aforesaid plates, insulating material interposed between said flanges and edge portions and between said parts and the binders, and an element comprised of insulating material occupying the opposed channel strips of adjacent slabs thereby to hold the said slabs in a substantially common plane.

7 In a heat insulatin wall, the combination of a plurality of sla bs arranged edge to edge, each slab comprising an inner and an outer metallic. plate, a channel strip disposed 'between the edge portions of said plates and facing outwardly so as to be in opposed relation to the corresponding element of the adjacent slab, binders that are U- shaped in cross section embracing the flanges of the channel strips and the adjacent edge portions of the aforesaid plates, insulating material interposed between said flanges and edge portions and between said parts and the binders, an element comprised of insulating material occupying the opposed channel strips of adjacent slabs thereby to hold the said slabs in a substantially common plane, and finishing plates applied to and concealing the outer flanges of adjacent hinders, the lateral edges of the finishing plates being turned inwardly and about the adjacent flanges of the binders.

8. In a heat insulating wall, the combination of a plurality of slabs arranged edge to edge, each slab permanently incorporating a flange along its edge that is opposed to the corresponding flange of the adjacent slab, and a finishing plate applied to and edge 0 plane osed to and in substantially the the flange of the adjacent slab,

and a finishing plate having its lateral edges turned over and inwardly upon its body portion then over and outwardly to form 0pposed channels for the reception of the aforesaid flanges of the wall slabs.

In testimony whereof, I hereunto affix n1 siature.

y :n CARL F. MAYER.

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