US1915611A

US1915611A - Insulating slab

Info

Publication number: US1915611A
Application number: US461231A
Authority: US
Inventors: Miller William Lott
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-06-14
Filing date: 1930-06-14
Publication date: 1933-06-27
Anticipated expiration: 1950-06-27

Description

June 27, 1931i K w.L.Mn LE R I 1,915,611-

INSUIQATNG4 SLAB Filed June 14, 1930 I?.v Sheets-Sheet 2 Figs) i u n i raient@ .ame a?. ieee. t

Nrrs WILLIAM LOTT MILLER, F WINONA, MINNESOTA INSULATING SLAB Application led .Tune 14,

My invention relates to insulating slabs and particularly to such structuresV as are adapted' to be installed'w-ithin a wall, partition or other structure to be insulated;

An object of the invention resides in providing an insulating slab which may be placed on edge and which may be constructed with a body formed of a loosely packed fibrous material such as mineral wool or any Y0 type of organic ibrous material.

Another object of the invention resides in f preventing the body of the slab from settling or otherwise moving when installed on edge so as to prevent the formation of an unfilled space at the upper end of thebody.

A still further object of the invention resides in providing a keeper for engaging portions of the body of the slab to hold the saine intact.V

A feature of the invention resides in constructing said keeper with a supporting member having means thereon for engaging the body at various separate-localities for preventing relative movement of the portions of 715 'the body so engaged.`

An object of the invention resides in constructing said'member planiform and in disposing the same parallel to one of the surfaces of the slab.

Another object ofthe invention resides in providing said member with prongs issuing outwardly therefrom and extending into the fibers of the body. i

A still further object of the invention resides in imbedding the keeper within material of the body of the slabwv A feature of the invention resides inI disposing said prongs on both sides of said planiform member to more effectively engage the material of said body.

An object of the invention resides in constructing said prongs so that the same will resist movement of various portions of the body of said slab in one'directiona Another object of the invention resides in constructing said prongs so that the same will resist movement of the various portions of the body of the slab in several directions.

A`still further object of the invention resdcs in constructing said member in the'folm v and illustrating an embodiment of my inven- 1930. Serial No. 461,231.

of a supporting sheet and in providing prongs issuing outwardly therefrom,v `some of said prongs being able to resist stresses in one direction and other of said prongs being able to resist stresses in another direction.

A feature of the invention resides in providing a wall along which said body extends and in arranging said prongs so as to extend toward said wall, said prongs falling short of said wall.

An object of the inventionoresides in providing a case for said body having spaced parallel walls, and in arranging within said body prongs extending toward both of'said walls, said prongs falling short of both of said walls.

uAnother object of the invention resides in completely imbedding the prongs. and the lupporting structure therefore within sald ody.

Other 'objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/or described.

In the drawings:

Fig. 1 is a perspective view of an insulating slab with portions thereof cut away to show the interior construction of said slab tion. 30 Fig. 2 is a perspective view of the lkeeper used with the form of the invention shown in Fig. 1 and drawn to a larger scale'than that employed in Fig. 1

Fig. 3 is an enlarged crossy sectional v1ew taken on line 3 3 of Fig. 1.

Fig. 4 is a perspective view of another form of keeper.

Fig. 5 is a cross sectional view taken on line 5-5 of Fig. 4.

Fig. -6 is a perspective'view similar to Fig. 1 illustrating a modification ofthe invention.

Fig. 7 is a perspective view of still another form of keeper similar to that shown in Fig. 1.

Fig. 8 is a cross sectional view similar to Fig.I 3 and showing another form of the invention.

Fig. 9 is a cross sectional view simllar to Fig. 8 and showing the method of applying 100 the prongs lto the structure illustrated in Figs. and 11 are cross sectional views similar to Fig. 5 and illustrating modied forms of keepers, g

In the insulation of refrigerators, refrigerating rooms and various types of buildings, it has been customary to construct the walls and partitions of such structures with inner and outer sheathing and in disposing between such sheathing insulating material of some sort or other. A convenient method has been to construct the insulating material in the form of slabs and to insert these slabs into the space between the sheathing of the walls or the partitions during the construction of the same. In the construction of such slabs it has been attempted to employ a case of some suitable material and to dispose within said case a body formed of some suitableorganic fibrous substance. Such construction,

f however, has been found to be highly imtrated as contained within a case indicated' practical due to the fact that some of the slabs are placed on. end and settling of the material forming the body of such slabs would leave a vacant space at the upper end of the slab devoid of insulating material. Such uninsulated space within the slabs greatly cuts down the efficiency of the insulation and renders such construction practically useless for the desired purpose. The present invention provides a construction whereby. such settling of the body of the slab is prevented so that complete insulation is had throughout the entire extent of the slab.

In the form of the invention shown` in the drawings, the insulated slab has been illus- -in its entirety at 15. In instances where the slab is constructed at the locality where the refrigerator or other wall to be insulated is being constructed, this case may be dispensed with and the insulated slab disposed directly in between `th`e sheathing of the wall. However, Where the slab is built at one ylocality a-nd the refrigerator or wall wherein the same is used is at another locality, the case 15 is highly preferable, and for this reason, all of the forms of the invention are shown as contained within such-a case.' The case 15 is preferably constructed from a strip of cardboard or other suitable material 16 which is of a widthl equal tothe thickness of the slab to be ,formed and which is bent in a rectangle as best shown in Fig. 1 to extend about the four edgesof the finished slab. In the construction of the slab this strip is disposed about a suitable form and a sheet of paperor other suitable material such as in'V dicated at 17 placed along -one edge of the strlp 16 and folded over and attached to said strip as by gluing, stapling, or, otherwise. The body of the slab which is indicated at 18 1s next placed within the interior of the case l5 and the same closed through another sheet of the strip 16 andsecured to the same. this manner the body 18 is completely concealed along all surfaces thereof and the shape thereof retained within the strip 16 and the sheets of

paper

17 and 19 overlying the' same. If desired, the strip 16 and the body 18 may be wrapped in a single sheet of paper folded about the same and secured in place by any suitable means. Y

In conjunction with the body 18, I employ a keeper 20 a portion of which is shown in detail in Fig. 2.- This -keeper may be constructed of certain types of paper which may be readily punched and bent to give sulicient rigidity to serve `the desired purpose. In the formation of the keeper 20, the stock or sheet of paper from which. the same is constructed is punched to form two series of

prongs

21 and 22 which extend outwardly ,of paper 19 which is laid over the other ed eV from the sheet in opposite directions therefrom. In use, the keeper 20vis imbedded within the interior of the body 18 of they sheet from which the keeper 2O is formed is severed along two

parallel lines

23 and 24 and alongl a diagonal line connecting these parallel lines so that the two prongs 21 and 22 extend outwardly from the same opening. By means of this construction the prongs may be more closely situated relative to one another than where one prong is struck out from each hole. In'the construction of the prongs in this manner, it will be noted that each prong is formed with an edge 25 at right angles `to the surface. of the sheet and with an edge 26 inclining relative thereto. When the prongs engage into the body 18 of'the slab, the edges 25 operate more effectively to pregvent the shifting of the material from which land other of said prongs resist the shifting of said body in other directions. When the slab is properly constructed with the keeper 20 imbedded Within Athe same, said slab may be placed on edge and some of the prongs thereof will have their edges 25 operating to restrain shifting of the body 18 with respect to the case 15. This is true regardless of what edge of the slab the same is made to rest upon since the prongs are arranged alternately to present the perpendicular edge thereof either in an upward or downward direction or in a righthand or left hand direction and to either side of the sheet." If desired, the 4keeper 20 ico may be constructed of metal or any other suitable substance from which prongs such as astrip 16'. An amount of fibrous material sufticient to vform one-half of the thickness of the body 18 is then laid within said case and upon the sheet 17. The lkeeper 20 is next placed upon the sheet and pressed into the same suiiiciently to cause the various'prongs 21 issuing outwardly therefrom to enter into said body and'become firmly lodged therein. Another amount of fibrous material indicated at 28 and sutHcient-to form the other half of the body 18 isthereafter placed upon the keeper 20 and the same pressed into the prongs 21 issuing outwardly from the other side of said keeper. The case is then closed through the sheet 19 which is glued or otherwise secured to the strip 16. The slab is then complete and can be shipped and handled Without danger of the .body thereof being shifted and without danger of the same set- Itling when installed into the structure in which the slab is to be ued. Where au extra thick slab is desired or where further support is required than possible with the struc-l ture shown in Fig. 1, several keepers such as shown may be employed and distributed in spaced parallel formation -in lthe slab with layers `of the insulating material 'therebetween. By means ofA this construction slabs of any thicknessor any proportions may be constructed.

.In Fig. 4, I have shown another form of keeper which is indicated Iin its entirety at 29 which may be used in place of the keeper 20 shown in Fig. 2. This keeper consists of a sheet of paper or cardboard 30 which has attached to it at various localities covering the entire surface. of 4said sheet a number of

wire staples

31 and 32. These staples may be attached to the sheet as shownin Fig. 5 and are provided with offset portions 33 which hold said staples'irmly' secured to the sheet. It can readily be comprehended that these staples are most capable of resistingv pressure applied in a plane containing the

legs

34 and 35 thereof. For this reason some of the staples, namely those indirated at 32. are arranged to extend in one direction While the other staples indicated at 31 are arranged to ,extend in a direction at right angles thereto.

. such as indicated in Fig. 1, the slab may be Furthermore some of each of the staples eX- tend through the sheet in opposite directions so that there are staples on both sides of the sheet extending in two directions. -Then the keeper 29 is used in conjunction with a'slab placed on any of the edges thereof and the various staples 31 and 32y serveto hold the body of the slab in proper position the same as the

prongs

21 and 22 of the form of keeper shown in Fig. 2.

If desired, thestaples used in conjunctionl with the keeper 29 may be secured to the therefrom.

paper by the forming of the offsets, in the opposite direction from that shown in Fig. 5

as Iillustrated in Fig. 10. In this form of the construction brings the protruding ends` 39 and 40 closer to one another than the

ends

36 and 37 of the other structure, otherwise the keeper shown in Fig. 10 operates identically the same as that shown in Fig. 5.

lVhere a fairly'stit heavy paper is used, the staples may be attached to the same Without the use of the ofs'etfportions such as indi-y cated at 33 or 38 to ilinch the staples in place. Fig. 11 shows a structure having the staples so attached. In this figure the paper or sheet to which the staples are attachedis designated at 41. and the staples are indicated at 42. The staples are partially held in place through frictionalengagement with the sheet 41 lwhile the pressure of the body of the slab against the staples furtherv assists in hold# ing the staples in 'place and prevents the fibrous material from being disengaged In Fig. 7, I haveshown a of keeper which may be constructed from paper or sheet metal and Iin which the prongs issuing outwardly therefrom which are designated at 43 may be constructed somewhat differently thanthe prongs 21 and 22 of the form of the invention shown in'Fig. '2. In the construction of these prongs, one prong is struck out from each opening in the sheet and said prong is tormed triangular and is bent along a medial line 44 to provide two

lportions

45 and 46 issuing outwardly yfrom the sheet at right angles to the sheet. These portions of the prong are capable of resisting stresses in two directions so that one of the prongs 43 takes the place of two of the prongs 21'shown inthe other form of the invention. rl `he Various prongs 43 are :lternately disposed upon the opposite sides of the sheet to provide means for engaging the body on both sides of the sheet and said prongs are also arranged in inverted order so as to resist strains either in an up and down or in aleft and right hand direction. Y

Where the slab is designed for a particular installation in which the same is at all times to remain in a given vertical position', it 'is not necessary to provide prongs for resisting stresses in more than one direction.

A slab 'particularly adapted to such use is different fo'iml` keeper such as shown in conjunction with the device illustrated in Fig. 1, a number of vertical strips 49 are employed which are im-4 bedded within the body 48 and are spaced from one another. These strips have attachedl to them

staples

50 and 51 which extend through said strips in opposite directions. These staples may be attached to said strips as shown in Figs. 5,10 or 11. In the drawings, said staples have been illustrated as attached to-'the strips by themethod shown yin Fig. 11 due to the fact that-*where the and rear surfaces of the slab.- These with or similar to the case 15, and a body' 53 is employed of fibrous lmaterial similar to the body 18. Within this body may bc disposed a keeper indicated at '54 which may be constructed of a sheet such as shown 1n illustrated at 49 in Fig. 6. The prongs used with this form of the invention consist vof pins 55 which extend through the sheet or strips forming the supporting structure for the keeper 54 and fall short of both the front pms may beinserted into the slab after the sheet or strips constituting the supporting structure-for the keeper 54 has been placed within s. the f slab the 'same This 'is accomplished Aby compressing the surface of the body 53 as indicated at 56 in Fig. 9 which upon being released immediately springs V,to its normal shapend completely encloses the various pins. The pins 55 may be inserted before the.

52 has been applied to the same as illustrated in Fig. 9 .or.said pins may be caused to outer sheet 57 of the case penetrate said sheet of the case to be applied to the device after has been completely encased.

' Where a relatively firm and rigid material i's -used for the sheet supporting the pins 55said pins may be attached to the sheet before the same is imbedded in the slab.

Although I have shown-but one form of case for encasing the slab, it can readily be comprehended that any suitable box structure vfor holding the4 same in place may be employed or that the slabwithoutcase may be directly placed into the compartment in which it is to be used without departing from the spirit of the invention. It can also be readily 'comprehended that other forms' of v eepers ,and different types ofyprongs may' be employed all within the 'scope .of the invention. It is also not absolutely necessary "5 slab so long as to have-the keeper parallel to the walls .of the the supports carried thereby 4 at 30 or a number of strips such as of said body at are distributed about the material constituting the body of the slab, and the supporting structure of the keeper need not necessarily be confined to-a plane or single surface but may .be zig-zagged or corrugated or may be formed of individual strips'arranged in angular or 'parallel relation to one another.

My invention is highly meritorious in that an extremely simple and efectivestructure is provided whereby insulating slabs maybe constructed of fibrous material at considerable less expense than where constructed of other substances. Settlin or shifting of the material from which the ody of the slab is constructed lis completely prevented. The keepers used with the invention may constructed the body of the slab in one or more keepers can be constructed at a nominal cost and operate in a positive and effective manner. The prongs may-be applied to one or both of the sheets forming the side walls of the case for the slab or the same may be mounted on a separate sheet or strips imbedded within the body of the slab proper. In the construction of the invention the prongs are arranged so as to extend only partially through the body of the slab thereby preventing conductance of heat from one to preventshifting of surface of the slabfto the other through the Y agency of said prongs and further preventing sweating. j l

Changes In the specific form of the invention, as herein disclosed, may be made within the scope of' what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and Patent is:

1.- An insulating slab comprising a body formed of a loosely packed fibrous material,

a supporting sheet parallel4 to one of the sur- I faces of said body, prongs issuing outwardly from said sheet for independently supporting portions of said body at various localities when said slab is placed on oneedge, and other prongs .issuing outwardly from said sheet for independently supporting Vportions various localities when said body is arranged on another edge.

2. An insulating slab comprising a body formed of a loosely packed-fibrous material,

a supporting sheet imbedded within said body and parallel to yone of the surfaces thereof, and prongs issuing outwardly from said sheet from opposite sides thereof to engage said body at various localities therein.

3. An insulating slab comprising a case formed with spaced parallel Walls, a body of loosely packed fibrous material disposed bevtween said Walls, a supportin sheet disposed within said body and spaced grom said Walls, said sheet having prongs Aissuing outwardly therefrom and entering into said body, said desire `to protect by Letters prongs falling short of all of the walls of said case.

4. An insulating slab comprising a' body formed of a loosely packed fibrous material, a supporting sheet parallel to one of the surfaces of said body, a plurality of prongs issuing from said sheet, bendable relative to said sheet in one direction and rigid with respect thereto in the opposite direction, and a plurality of other prongs bendable with respect to said sheet in the direction in Which said first named prongs are rigid and rigid With respect to said sheet in the direction in Which said first named prongs are bendable.

5. An insulating slab comprising a body formed of a loosely packed fibrous material, a supporting sheet parallel to one of the surfaces of said body, prongs struck out from said sheet and bendable along parallel lines,

' 20 other prongs struck out from said sheet and bendable along other lines lying at right angles to the first named lines.

6. An insulating slab comprising a body formed of a loosely packed fibrous material,

a supporting sheet parallel to one of the surfaces of said body, a plurality of staples having the prongs thereof extending through said sheet with the connecting portions therev of lying parallel to one another and a plurality of other staples having the prongs thereof extending through the sheet and the connecting portions thereof extendin at right angles to the connecting portions of said first named staples;

7. An insulating slab comprising a body formed of a loosely packed fibrous material, a supporting sheet parallel to one of the surfaces of said body, said sheet being constructed of cardboard and having prongs struck out from said sheet and bendable along parallel lines, other prongs struck out from said sheet and bendable along other lines lying at right angles to the first named lines.

8. An insulating slab comprising a case, a body Withi-n said case formed of a loosely packed fibrous material, a readily bendable supporting sheet having rigidity in any direction in the plane thereof, and imbedded Within the fibrous material, and prongs struck out of said-sheet and extending from both sides of the sheet, said prongs being rigid in one direction to lend support to the fibrous material, some of said prongs on each side of the sheet being arranged to lend support to the body when the slab rests upon one edge and other of said prongs on both sides of the sheet being arranged to lend support to the body When the slab rests upon another edge, said prongs all falling short of the sides of the case.

9. A slab of insulating material comprising a case, a body Within said case formed of aloosely packed fibrous material, a supporting sheet imbedded Within the fibrous material, members carried by said sheet and extending toward the side Walls of said case for preventing sliding movement of the fibrous material on both sides of the sheet and along the sheet in any direction, said sheet and members being Wholly free from the side Walls of said case and being carried by the body of fibrous material.

10. A slab of insulating material comprising a supporting sheet, a body of fibrous material arranged in two parts, one on each side of said supporting sheet, means on said supporting sheet issuing outwardly from the surfaces thereof for restraining movement of both parts of the body in the plane of said sheet and in any direction, and a case enveloping said body, said case having sides overlying the parts of the body and ends connected to the sides and operating in conjunction therewith to restrain movement of the parts of the body away from said sheet and to hold the parts of the body in contact with the restraining means on the sheet.

11. A slab of insulating material comprising a supporting sheet, a body of fibrous material overlying said supporting sheet, means on said support-ing sheet issuing outwardly from the surface thereof on which said body is disposed and entering into said body for 105 restraining movement of said body in the plane of the sheet and in any direction and a case including a sheet overlying said body and further including marginal portions bent from said sheet and overlying the edges of the sl-ab, said marginal portions being substantially immovable relative to said first named sheet and serving to hold the body in engagement with the restraining means thereon.

In testimony whereof I have affixed my signature. y

` WILLIAM LOTT MILLER.