US3230680A - Arrangement for wall elements comprising two sheets with intermediate insulation - Google Patents

Arrangement for wall elements comprising two sheets with intermediate insulation Download PDF

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Publication number
US3230680A
US3230680A US167822A US16782262A US3230680A US 3230680 A US3230680 A US 3230680A US 167822 A US167822 A US 167822A US 16782262 A US16782262 A US 16782262A US 3230680 A US3230680 A US 3230680A
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sheets
frame
wall
insulation
wall elements
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US167822A
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Jarreby Bertil
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Svenska Flaktfabriken AB
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Svenska Flaktfabriken AB
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures

Definitions

  • FIGI. 1 A first figure.
  • Wall elements of the aforesaid type are at present applied to an increasing extent for the erection of Walls in drying and conditioning plants, as covers for cylinder driers, etc.
  • the air at the inner surface of the wall has in many cases a high relative humidity and due to the fact that for manufacturing reasons the sheets of the wall elements cannot be secured to the frame in such a manner that a complete air sealing is obtained, there is always the risk of moist air entering the space between the sheets.
  • this air When this air is cooled its condensed moisture will be absorbed by the intermediate insulation and deposited both on the inner surface of the external sheet and on the frame.
  • the said moisture deposit remains within the intermediate space where it not only constitutes corrosion risk but also contributes to a deterioration of the heat insulating capacity of the insulation and in certain cases even effects complete destruction of the insulation.
  • the invention is characterized in that the insulation is subdivided into a plurality of vertical fields with free spaces therebetween which, through openings provided in the upper and lower frame portions of the wall element, communicate with the ambient air for utilizing the said free spaces for ventilating the interior of the wall element.
  • a preferred embodiment of the invention is characterized in that the wall element comprises one entirely plane and one slightly corrugated sheet, the said plane sheet being riveted to the frame by employing an intermediate sealing strip while the corrugated wall sheet is riveted to the frame without such sealing strip whereby the wave troughs of the corrugated sheet form the said ventilation openings to the said free spaces in the interior of the wall element.
  • the aforesaid ventilation is rendered possible in that the wall sheets are made of thin material glued on the intermediate insulation, in such a manner that they together form a slab of a thickness somewhat smaller than the width of a groove provided in the frame and enclosing the slab, and in that the said slab is secured to the frame by so-called pope or blind riveting of the two wall sheets, the wall sheet last riveted along the frame thereby forming a slightly waved or corrugated contact surface with the wave troughs constituting the said ventilation openings.
  • the so-called pope rivets are of the type which can be inserted in a hole and by external pressure on a sleeve and pull on a stem have a head formed 3,230,680 Patented Jan. 25, 1966 ICC on the inner end of the sleeve. Similar fasteners in common use are known as cherry rivets and mollys.
  • the bottom portion of the frame is provided with a plurality of through holes through which any condensate collected therein may be drained off.
  • FIG. 1 shows a wall element in elevation, wherein the frame and sheets are partially out off to show the type of the intermediate insulation
  • FIG. 2 is a section through the upper portion of the frame along the line 22 in FIG. 1,
  • FIG. 3 is a section of the bottom portion of the frame along the line 3-3 in FIG. 1, and
  • FIG. 4 is a transverse section along the line 44 in FIG. 1.
  • 1 designates a frame for a wall element according to the invention.
  • insulation material 4 which in the embodiment shown is Wellit.
  • the wall sheets are secured to the frame by means of rivets 6 in such a manner that for obtaining greatest possible sealing efiect towards the inside a sealing strip 7 is provided between the inner sheet 2 and the frame 1.
  • no sealing is employed with the result that spaces are formed at the wave troughs, which spaces serve as ventilation openings 5 connecting the ambient air with the said free spaces.
  • the said ventilation openings may be obtained without using an external sheet which is corrugated in advance, in that the Wall element is constructed of thin Wall sheets glued to the insulation material, thus forming a slab of a thickness somewhat smaller than the width of a groove provided on the frame and enclosing the slab, the said slab being secured to the frame by so-called pope or blind riveting.
  • the inner sheet when being riveted, forms a slightly corrugated contact surface With the wave troughs constituting the said ventilating openings.
  • the bottom portion of the frame is provided with a plurality of through holes 8 for draining otf any condensate flowing down in the space between the wall sheets, and collecting in the groove in the bottom of the frame.
  • wall elements comprising two sheets with intermediate insulation and a surrounding frame having a groove therein receiving said sheets and insulation, the insulation being subdivided into a plurality of vertical fields with free spaces therebetween, openings at the upper and lower ends of the wall element communicating with the ambient air in order to utilize the said free spaces for ventilating the interior of the wall elements
  • the wall sheets consist of thin material glued to the insulation therebetween, said sheets and insulation together forming a slab of a thickness some- What less than the width of the groove in the frame, the References Cited by the Examiner wall sheets being secured to the frame by blind rivets, the UNITED STATES PATENTS Wall sheet last riveted along the frame thereby forming 2 0 1 a a slightly waved contact surface with the Wave troughs 61 12/1941 Ward 52 302 constituting the said ventilation openings.

Description

Jan. 25, 1966 B. JARREBY 3,230,680
ARRANGEMENT FOR WALL ELEMENTS COMPRISING TWO SHEETS WITH INTERMEDIATE INSULATION Filed Jan. 22, 1962 FIG 2.
FIGI.
mvcuron: BERT] L JARREBY ATTYS.
United States Patent F 3,230,680 FGR WALL ELEMENTS (ZOM- SHEETS WITH INTERMEDIATE The present invention relates to a novel and improved arrangement in wall elements comprising two sheets with intermediate insulation and an enclosing frame.
Wall elements of the aforesaid type are at present applied to an increasing extent for the erection of Walls in drying and conditioning plants, as covers for cylinder driers, etc. In such plants the air at the inner surface of the wall has in many cases a high relative humidity and due to the fact that for manufacturing reasons the sheets of the wall elements cannot be secured to the frame in such a manner that a complete air sealing is obtained, there is always the risk of moist air entering the space between the sheets. When this air is cooled its condensed moisture will be absorbed by the intermediate insulation and deposited both on the inner surface of the external sheet and on the frame. As there is only very limited natural air exchange with the ambient air through leaks in the external sheet, the said moisture deposit remains within the intermediate space where it not only constitutes corrosion risk but also contributes to a deterioration of the heat insulating capacity of the insulation and in certain cases even effects complete destruction of the insulation.
It is the object of the invention to eliminate the aforesaid drawback in a simple as well as reliable manner. The invention is characterized in that the insulation is subdivided into a plurality of vertical fields with free spaces therebetween which, through openings provided in the upper and lower frame portions of the wall element, communicate with the ambient air for utilizing the said free spaces for ventilating the interior of the wall element.
A preferred embodiment of the invention is characterized in that the wall element comprises one entirely plane and one slightly corrugated sheet, the said plane sheet being riveted to the frame by employing an intermediate sealing strip while the corrugated wall sheet is riveted to the frame without such sealing strip whereby the wave troughs of the corrugated sheet form the said ventilation openings to the said free spaces in the interior of the wall element.
More specifically, the aforesaid ventilation is rendered possible in that the wall sheets are made of thin material glued on the intermediate insulation, in such a manner that they together form a slab of a thickness somewhat smaller than the width of a groove provided in the frame and enclosing the slab, and in that the said slab is secured to the frame by so-called pope or blind riveting of the two wall sheets, the wall sheet last riveted along the frame thereby forming a slightly waved or corrugated contact surface with the wave troughs constituting the said ventilation openings. The so-called pope rivets are of the type which can be inserted in a hole and by external pressure on a sleeve and pull on a stem have a head formed 3,230,680 Patented Jan. 25, 1966 ICC on the inner end of the sleeve. Similar fasteners in common use are known as cherry rivets and mollys.
The bottom portion of the frame is provided with a plurality of through holes through which any condensate collected therein may be drained off.
The invention will now be described more in detail with reference to the accompanying drawings showing by way of example an embodiment of a wall element according to the invention, and wherein FIG. 1 shows a wall element in elevation, wherein the frame and sheets are partially out off to show the type of the intermediate insulation,
FIG. 2 is a section through the upper portion of the frame along the line 22 in FIG. 1,
FIG. 3 is a section of the bottom portion of the frame along the line 3-3 in FIG. 1, and
FIG. 4 is a transverse section along the line 44 in FIG. 1.
In the drawing, 1 designates a frame for a wall element according to the invention. Between an inner sheet 2 and an outer sheet 3 secured to the frame is laid insulation material 4 which in the embodiment shown is Wellit. According to the invention the insulation is subdivided into a plurality of vertical fields with free spaces 9 therebetween Which form vertical through channels for ventilation. The wall sheets are secured to the frame by means of rivets 6 in such a manner that for obtaining greatest possible sealing efiect towards the inside a sealing strip 7 is provided between the inner sheet 2 and the frame 1. For securing the external sheet which is slightly corrugated no sealing is employed with the result that spaces are formed at the wave troughs, which spaces serve as ventilation openings 5 connecting the ambient air with the said free spaces.
The said ventilation openings may be obtained without using an external sheet which is corrugated in advance, in that the Wall element is constructed of thin Wall sheets glued to the insulation material, thus forming a slab of a thickness somewhat smaller than the width of a groove provided on the frame and enclosing the slab, the said slab being secured to the frame by so-called pope or blind riveting. In this embodiment the inner sheet, when being riveted, forms a slightly corrugated contact surface With the wave troughs constituting the said ventilating openings.
The bottom portion of the frame is provided with a plurality of through holes 8 for draining otf any condensate flowing down in the space between the wall sheets, and collecting in the groove in the bottom of the frame.
The design of the frame as well as the fastening of the wall sheets may be modified, of course, in dilferent Ways within the scope of the inventive idea.
What I claim is:
1. In wall elements comprising two sheets with intermediate insulation and a surrounding frame having a groove therein receiving said sheets and insulation, the insulation being subdivided into a plurality of vertical fields with free spaces therebetween, openings at the upper and lower ends of the wall element communicating with the ambient air in order to utilize the said free spaces for ventilating the interior of the wall elements, the improvement wherein the wall sheets consist of thin material glued to the insulation therebetween, said sheets and insulation together forming a slab of a thickness some- What less than the width of the groove in the frame, the References Cited by the Examiner wall sheets being secured to the frame by blind rivets, the UNITED STATES PATENTS Wall sheet last riveted along the frame thereby forming 2 0 1 a a slightly waved contact surface with the Wave troughs 61 12/1941 Ward 52 302 constituting the said ventilation openings. 5 FOREIGN PATENTS 2. An arrangement according to claim 1 wherein the 443,477 2/1936 Great Britain groove in the bottom portion of the frame is provided 11 194 1 194 Great Britain with a plurality of through-holes for draining 01? any condensate collected therein. RICHARD W. COOKE, 111., Primary Examiner.

Claims (1)

1. IN WALL ELEMENTS COMPRISING TWO SHEETS WITH INTERMEDITATE INSULATION AND A SURROUNDING FRAME HAVING A GROOVE THEREIN RECEIVING SAID SHEET AND INSULATING, THE INSULATION BEING SUBDIVIDED INTO A PLURALITY OF VERTICAL FIELDS WITH FREE SPACES THEREBETWEEN, OPENING AT THE UPPER AND LOWER ENDS OF THE WALL ELEMENT COMMUNICATING WITH THE AMBIENT AIR IN ORDER TO UTILIZE THE SAID FREE SPACES FOR VENTILATING THE INTERIOR OF THE WALL ELEMENTS, THE IMPROVEMENT WHEREIN THE WALL SHEETS CONSISTS OF THIN MATERIAL GLUED TO THE INSULATION THEREBETWEEN, SAID SHEETS AND
US167822A 1961-01-25 1962-01-22 Arrangement for wall elements comprising two sheets with intermediate insulation Expired - Lifetime US3230680A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151802A (en) * 1977-09-12 1979-05-01 Fruehauf Corporation Bottom rail construction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443477A (en) * 1935-08-19 1936-02-28 Robert Hugues Improvements in composite or built-up boards, panels or the like
US2264961A (en) * 1937-06-21 1941-12-02 Wood Conversion Co Thermal insulation structure
GB611194A (en) * 1946-04-25 1948-10-26 Hills & Sons Ltd F Improvements in or relating to doors for buildings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443477A (en) * 1935-08-19 1936-02-28 Robert Hugues Improvements in composite or built-up boards, panels or the like
US2264961A (en) * 1937-06-21 1941-12-02 Wood Conversion Co Thermal insulation structure
GB611194A (en) * 1946-04-25 1948-10-26 Hills & Sons Ltd F Improvements in or relating to doors for buildings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151802A (en) * 1977-09-12 1979-05-01 Fruehauf Corporation Bottom rail construction

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