2 2,147,059 Each of these outer layers may be constructed as I Sliown iri the layer wliieh Is broken down in ]Fig. 5. It will be noted that this layer consists of two laminations of loose, flexible, extetisible, double creped paper 28 secured together by a layer 30 of,su@tabl4e, adhesIV6, preferably a moisture resistant adhesive, such as an asphaltum compound. These outer protective layers 26 are arranged sandwich fashion upon opposite sides 10 of the fluffy interior inswating lamination 24 as shown. The entire pad is then compacted as shown in Figs. 1, 2 and @3 around its margin 32 and transversely therea'cross along line 34 forming separate pad like portions 36 adapted for dis 1,5 position between the several pairs of bows As the pad is compacted under heat and pressure the thermoplastic particles serve to hold the flbprs permanently compacted togetherthroughout a. compacted area or along the compacted 20 lines and the asphalt 30 in the outer prote.ctive layer 26 ihigrates -and serves to assist in performing the same function thereby producing a compacted. area throughout which the entire pad is so c'ompressed as to form a relatively thin @ but 25 to@gh and strong iirea adapted to.receive and retalntherethrough fastening means such. as nails or th@ like to secure the l@ad in place to the supporting frame, of the roof. A pad, ihus formed having a compressed mar30, ginal p . ortion and compressed transverse line portions separating.the pad lengthwise'into a plurality of individual pad-like iri@ul-ating areas is.positi6ned upon the roof fra'me including the bows so that the I cus . h I ion-like aieas are dfsposed between 35 the bows and the framo as shown. As@ illustrated in Pig 3 the structur I e is of the cila racter of Figs. 2 and 5 above described and is disposed underneath the wire 'netting 2 0. @ The compacted longitudinal marginal,portibns of the pad are secured 40 in@ plac'e to the longitudin@l@ side fram6 members of the roof, structure which are h6t,sh@owril in the dfa*ing but are of the conventional well-known characier. This securement ma@ be in the many ner illustrated for attachment of the coinpacted 45 transverse !)drtions to the'bo'WS. @tioii' i@. iliustrat d in Fig. 4 where A mod fie e 's6piLr@te @@ds 36,Of the :sam:e fluffy fibrous insulatioii mati@rial are supported by a flexible fibr I ous or fabric Iayer..40 wncb may be of the same ma@6riAl@ As oile of the lo@yeis 26 or other suit@ble ma0 ,t6rial. Ik B boord might.be used. This is 4 c I om@ositi6n fiber board carrying a substaritial asphaltum corite@i and is capabl@ i)i b6in@'molded Under heat and @iessure. o' A layer of I osely woven fabric 55 @42 .siieh as:che@@e'cl6th, @crini, or ihe Iik6 is arranged underneat@ the- pads@ 38.and @dhesively secured to the IoLyek 40 holding the pads In place as sho,@vn. This composite l@E@d is adapted t'o be 60 us6d in' th@ same,@ manner as 'described in con@n6@tion v@'th t4e pad'of Mgs. 1, 2 -ind' 8@ gib6ve. strip@@ of sliitable materi@l 4t, may be'iaid over -the 'bows 12 underneath the p@d,@s shown in F,ig. 3.@ What I Claini is, 65 l@ An autom6bile roo'f h'aving spa'ced a"part suppoiting bows, top deokinlg mdterial' covering the tops of @ siiid bow's, a: layer of @ wadding Arranged @on tbp 6f @aid bbw@ underne2@tb @aid top d'ecking material, . trim material covering the@;b6ttoms of said 'bow4 and a pltir-alit@ of instilation pads supported within the ida@es b4@tween said ;b6ws and bet*een said wadding and trim. material. 2. An automobile -roof having spaced apa-rt 8upporting.bows, top decking material. covering the tops of said bows, trim material covering the bottoms of said bows, an insulation pad formed of alamination of loosely integrated fluffy fibrous material possessing high insulating capacity secured r, to @an outer I I amination of flexible protective material, said fluffy fibrous material being permanently adhesively compacted along its margin and along transverse lines corresponding with the, relative position of the roof bows separating 10 the pad into uncompressed pad-like areas, said pad supported upon said roof bows with the uncompressed pad-like areas depending between the bows aiid substantially filling the space therebetween and the compacted areas overlying and jr, secured to the bows. 3. An automobile roof having spaced apart supporting bows, top decking.material covering the tops of said bows, trim material covering the.bottoms of said bows, a laininated insulation pad 20 formed of an interior lamination of. loosely integrated fluffy fibrous material possessing,high insulating capacity arranged between two outer laminations I of protective, material, one outer lamination being formed of relatively tough and 2r, strong material and the other oute@ lamination being f6rmed of relatively porous material, said insulation pad being compacted along its margin and along transverse.lines corresppnding to the relative position of the bo.,ws separating @he 30 pad, into spaced apar,t. transverse unc6mpacted pad like areas, said,]@ad supported upon said bows with the. comp@icted lines oveilying @he bows and the uncompacted pad like areas. disposed within the,intervals between the bows and the. porous 35 lamination of the pad dispbsed on the under side. 4.,An insulati.on peid for an.autoriiobile roof in up 0 hav @ a s p rting frain6 including cross frame pad r i g members, said comp is n an iliterior lami,nation of loosely.,integrati@d fibrous fiuffy r4a- io te@ial arranged between tivo outer protective outer lamination8, said Pad being permanently'compact6d along its margin and along spaced apart ;tran@verse lines provid;ng relatively@ tough strong compact'ed'lines 6orresponding to ttie frame, of4 the roof and d pted to sea thereon and surA a t )r6un.din'g - spaced apart unc()m@res@bd areas, adapited to be disposed within th6 thickness of @.tiie 'fr@me..betw e4@n.. . said frame members, said fiiiffy interior lamination being @eriiianent]3@ adhesively secut6a@ 66iiipacted together along'said lines. 5. Iri an.-aui6mobil@ r o@ o f having a inargihal 'ii m 1 nci cross bows, an insulation pad coma e a prisingla lamination of lobs@ely integrated flbr6us fluffy @ourid abso'rbing i-,@aterial posse@ssing thermoplastic characteristics and a tough hbro'us pro.,tecti@e@suoportin6 lamination possessiilg thermoAid t*d laminiti ri :beplastic characteristics, s 0 s ing @ @'permanently ihermoplasticall@ compacted along th6irmargiris and along 8paced dpart t@aiisverse lineg c6r'responding with the positi6n' of the bows providing relatively tougli stroiig compacted lines corresporiding t6 the frame 6f the roof ;aiid the' 6ross bows and 'adapted to seat t-her4bori:@Lnd' surrounding SpEiced apart un6ompressed ateas 6dapted to be disposed within the thickness of the fram'e@ betwe6n said %frame members, 'and: 96curirig rheans extending@ through said cbmpactdd areas into the fram6 secur'ing the to pad thereto. MEREDITH S. RANDALI@

Patented Feb. 14, 1939 2 1 1 4 7 @ 0 5 9 UNITED STATES PATENT OFFICE 2,147,059 AUTOMOBILE ROOF Meredith S. PandaIl, Detroit, Iffich., assignor to Woodall Industries Incorporated, Detroit, lmoh., a corporation of Mchigan Applicatioi@ March 21, 1935, Serial No. 12,139 5 Claims. (Cl. 296-137). M,v invention relate s to Improvements In laminated structural elements and, particularly to such a structure adapted for use as an improved roof for an automobile, which rgof is so constructed and arranged as to effectively insigote the interior of the vehicle body against heat or noise. It is of a construction which facilitates its use 10 in many -places and particularly in connection with automobile interior insulation and is simple, inexpensive, and easily assembled in position. In automobile roof construction it is adapted to be used with the conventionai automobile roof structure now employed, being so associated therewith as to be supported thereby. In a roof it comprises inswating pads of suitable material suspended between the bows of the framew6rk of the roof underneath the upper outer deck material superimposing the interior trim material. 20 An Important characteristic resides in the pro-. vision of an insulation pad formed of loosely integrated fluffy fibrous insulation material arranged between suitable outer protective layers to maintain the fluffy fibrous material in place. 25 This pad is so a@sembled In the roof that it includes portion$ of high insulating capacity which are arranged Y@ithin the spaces between the several roof bows. 7he structure may be so formed that a multi30 plicity of Individual insuiating pads are suspended from a flexible supporting strip extending over the tops of the bows in such a manner that an individual pad Is disposed within the space between each pair of bows. However, the 35 structure may be formed in such a manner that the individual pad portions of high Insulating capacity which are disposed between the several pairs of bows are unitary portions of an integral pad structure. , 40 This pad structure prefer . ably comprises an interior lamination of looseiy integmted fluffy ftbrous material having particles of thermoplastic binder material scattered therethrough. Preferably the individual fibers are coated with a fam 45 of the binder. The material is water resistant. This interior lamination is arranged between two outer laniinations of flexible fibrous protective material. The outer protective laminations likewise. preferably possess therinoplastic character50 istibs and are water resistant. In a preferred form of construction a pad 6f these thre6 laminations is made 'up full size for a roof and It Is subjected to a stamphig operation under heat as well as pressure.whereby the 55 interior fluffy laminiltion Is compressed along transverse lines corresponding to the spacing of the roof bows upon which the pad is to be mounted. Along the lines of compression the pad is compacted providing uncompressed fluffy pad60 Wm portions between the Hnes of comprelsion. When the pad is artanged upon the r6of bows the transverse compacted lines Gverlie the bows and the uncompressed pad-like portions are arranged between the bows as shown in Flg. 3. 5 A preferred practice is to compress, the pad around its margin as well as along the transverse lines described and to use the strong compacted Portions as the lines along which securing means are passed through the pad to fasten it to the 10 supporting framework of the roof. When compacted the structure possesses co nsideretble strength and durabirty which in an uncompresse s a e It does not have an t securing means are retained therein and the pad does not tear out at such points. 15 Other objects, advantages, and meritorious characteristics of my invention will more fully appear froin the following description, appepded clilims, and accomp;inying drawing, wherein: Mgure 1 Illustrates an embodiment of my im- 20 proved roof pad in plan, Mg. 2 illustrates the embodiment of Fig. 1 in. side elevation, Mg. 3 is a cross sectional view through an auto, mobile roof, partly broken away, embodying my 25 invention, Fig. 4 is a cross sectional view through a modifled form of my improved insuiating pad, and Mg. 5. is an enlarged fragmentary cross sectional view showing one form of pad construe- 30 tion. In Mg. 3 an automobile roof Is Illustrated In cross section. In this roof the top of the steel body is indicated as ID, the roof bows as 12,, the upper top decking as 14 and the inner layer of 35 trim fabric as IS. This inner layer 16 is attached to the roof bows by straps 18. In a composite type of roof wire netting 20 Is stretched across the tops of the bows and supports felt wadding 22 or the like as indicated and as is comm6n prac- 40 tice. In a roof of the type Ohich includes an outer upper sheet of metal I propose to support an insulating pad or pads between the bows as shown in this figure. These insulating pads or pad portions may be constructed'Eis shown in Flg. 3 4,3 or Mg. 4 or In any other swtable manner. A suitable construction Is as shown in Mg. 3. In this construction there is an interior layer 24 of loosely integrgted fluffy :ftbrous material, the cellulose fibers of which are of web-like texture 50 loosely Integrated together and carrying a muitiplicity of smar particles 25 of thermoplastle binder such as asphaltum or the like. This interior layer is disposed between two outer layers 26 of tough flexible flbrous protective material. A swtable product is a laminsted paper product as shown In Flg. 5 wherein one of the two outer layers Is shown as separated into two component parts In exaggerated size to Illustrate the 60 construction.