Патент USA US2111707код для вставки
March 22, 1938. 2,111,707 G. P. TORBURN BLANKET INSULATED _REFRIGEBATOR CAR Filed March 13„ 1936 3 Sheets-Sheet l BY /îlovzfv ATTORNEYS. March 22, 1938. G. P. TORBURN 2,111,707 BLANKET INSULATED REFRIGERATOR CAR Filed March l5, 1956 „? 5 Sheets-Sheet 2 im 3. ` ' E30. 27a“ £8/ 33 . BY INVENTOR, Bew-ff# ATTORNEYÖ. March 22, 1938.. G. P. ToRBuRN 2,111,707 BLANKET INSULATED REFRIGEBATOR CAR Filed March 13, 1936 5 Sheets-Sheet 5 7 INVENTOR, )H ¿MM ATTORNEYÖ . Mar. 22, 1938- ~ ,111,101 UNITED STATES PATENT lor~‘1=1cf_ _ v 2,111,701 BLANKET msm'ran nameaaa'roa een ' Gustav r. v'rorimîra on, sans. _ _ Appucatión March 1s, 193s, serian No.- satis comms. (ci. mss-42a» f The present invention relates to refrigerator cars in which the walls, floor and roof are pro í N, These and other objects and advantages ofthe invention will be brought out more fully in the tected against entrance of heat by means >of in following speciñcation, which should be readl sulation applied in the form of felted or woven with the understanding that the form. _construc sheets or blankets. ‘ . tion and arrangement'of the several parts de , lanket insulation is more efil'cient than other forms, and is considerably cheaper and easier ".toinstall. Its use permits thinner and lighter _ walls,_ thereby saving space, material, and weight. l@ lit has been used in refrigerator cars to some ' extent, but with indifferent success, the diiiiculty being that, in orderto be most effective, it must be continuous, or as nearly so as possible, around lthe sides, ends. hoor and roof of the car, and it must have a minimum‘number of fastening mem bers extending through it. Under such condi tions, 4which are necessary to proper emciency of insulation. no successful and practicable means have heretofore been developed for holding the blanket insulation in place, and for connecting' the innerand outer walls of the car together‘with suilicient strength and rigidity to withstand the stresses of loading and traveling. " ` _ ` _ The principal object of the 1present invention is to overcome the dimculties described above, vim-¿to provide a construction in which the in ner structure or lining of the car> is as nearly .as possible entirely surrounded by an unliroken lay m . scribed and »illustrated may be varied without de» parting from the spirit of the invention as de fined in the appended claims. - - Reference will be made to the accompanying drawings, wherein` , ' ` ‘ Fig. 1 is a transverse section through a refrig erator car embodying a preferred form of the in- . vention. ' ' _ v v » Fig, 2 is a broken plan view with the outer roof renioved, showing one method of folding the blanket insulation at the corners. Fig. 3 is a broken plan view similar to Fig. 2, showing another _method of folding the blanket insulation. . - - - Fig.- 4 is a vertical sectional detail of an upper corner, taken on the line i-t ofFig. 2. Fig. .5 is a vertical sectional detail showing the attachment of one of the ceiling carlines to the upper side belt rail. ,y - ' Fig. 61s a horizontal section of one end portion of the car. ’ ' Fig. '7 is a verticalsectional detail of the roof _and side wall lining, taken on- the line ï-‘i of Fig. 1. Y . " ‘ `er of Ablanket insulation, and in which said lin :In the drawings the reference numeral 8 des iw ing, although independent, asv respects its load carrying function, of the outer walls of the car, ignates the longitudinal central member of the and supported entirely by the Vunder-frame and ' under-frame of the canand da are the trans floor structure. is sufficiently attached to said ‘verse members thereof'. At the outer ends of said transverse members 8a are longitudinal side angle _outer walls to be adequately braced thereby. A further object is to providey a construction in members thextending theiull length of the car,_ which the blanket insulation is compressed and to winch the lower edges- of» the steel side sheath supported at as few points as are Vnecessary to keep Iit from shifting, and in whiclr- a minimum -number/of connecting members. such as bolts, .screws and nails, extend'between the lining and the outer frame„such connecting members as are ._ necessarily employed terminating- short oi the inner and -outer surfaces and their >endsibe ing Plates t lare _ riveted. Longitudinal angle ' members il' are supported by suitably spaced brackets il. The angle members i0 and wooden stringere l2, resting upon the transverse mem 40 bers 8a, support the wooden sub-floor i3. Longi--tudinal wooden spacers It are laid upon the sub ñoor, some distancev in from its side edges, and are» down vto the angle members I0 by ing insulated to prevent conduction >of heat. ’ d5 Still further objects are to provide a car hav -bolts IE, ¿one-of which is shown at the left in 45 ing a wooden 'lining and a steel outer shell. which i' Fig.` 1. The heads of these bolts are deeply _ is' so _well insulated as to be superior in-efüc'iency » countersunk,- as shown. tothe more usual al1-wood structure; to provide improved construction whereby the inside lining . supports the inner ceiling and> its insulation, en tirely free from the loute‘r steel roof; and to pro vide for extending the blanket insulation around the upper corners of the car, vwhere the roof » ÍTwc or more layers it of blanket insulation of any suitable iand well known'type are laid upon the sub-floor i3, between the >spacers it, with 50 their _edges turned up against »said spacers, as vshown at i1. Wooden nailing ’cleats i8 are laid at >suitable intervals above eachJayer >to keep meets the walls, without interruption and with ' them from shifting and to Asupport the inner wood__ 1 out joints at said corners. v ‘ ’ floor i9. which is laid across on top of the spacers f 2 3,111,707 I4 andk nailing cleats I9, and is covered, as usual, with a waterproof lining 20. ' - The steel side sheathing plates 9 extend up ward almost to the roof of the car, and are re inforced by vertical Z bars 9a. secured to their inner faces as shown in Fig. 6. Fig. 1 shows, at the left, a section of the solid portion of the side wall, whereas at the right is shown a door to be described later. Outer horizontal belt rails 10 2l, 22 and 23 are secured, by any means not shown, to the inside of the side plates 9, and ex tend between the vertical Z bars 9a, except where the door interrupts them. A plurality of layers, preferably three, of blanket insulation 24 15 are positioned vertically against the outer belt rails, and are clamped between them and inner belt rails 25, 26 and 21 for support and to pre 'vent shifting. Bolts 28 extend through both in ner and outerbelt rails to clamp them upon the 20 insulation. Both ends of these bolts aredeeply countersunk, and the sockets in which their heads and nuts rest should be filled with some plastic insulating material. The inner lining 29 of the wall consists of wooden boards, preferably with 25 tongue and groove joints, set vertically, as shown in Fig. 7, instead of horizontally as is the usual practice. The lining 29 is nailed to the inner belt rails. The bottom inner belt rail 25 rests upon the inner floor I9, and is preferably cham 30 fered, as at 39, to receive the ends of the lining 29. Ply-wood sheets may be used for the lining 29 instead of tongue and groovev boards, the es The upper edges of the steel side sheathing plates 9 have longitudinal stiffening Z-bar mem bers 4| secured to them, and to these is secured the steel roof 40 by means of intervening angle members 42. The roof 49 is of ordinary con struction, reinforced by transverse ribs, one of which is shown at 43. It rests entirely on the steel side sheathing plates 9, and is independent of the ceiling carlines 33 and insulation 39. If the particular blanket vinsulation used is 10 heavy and thick, it must be mitered at the cor ners of the ceiling where it is folded over, as shown at 44 in Fig. 2. If it is thinner, and space will permit, it can be folded over in square cor ners, as shown at 44a in Fig. 3. The effect is the 15 same in either case, vizt-'that the side insulation is carried continuously up and around the angle between the wall and the ceiling, so that such joints as are unavoidable, as shown at 24b in Fig. 1, occur in 4the horizontal ceiling portion, 20 where they are less .likely to spread apart than if they were located at the corner or in the vertical portion. Moreover, these joints 24h are -stag gered as between the several layers, so that there can be no direct opening through the entire body 25 of insulation at any point; The wall insulation is continuous also at the vertical corners of the car, as shown in Fig. 6. Each layer 24 is a continuous blanket extending from ther door post 45 on one side of the car, 30 to and around the end and back to the door post 45a on the other side, the ends of said blankets sential feature being that said lining'must have " being clamped between nailing cleats 45h at said sufficient compressive strength, in the vertical door posts. Thus there are no joints in the side 35 direction, to support the weight of the ceiling structure, as described hereinafter. It should be noted that the bolts 28 do not ex wall insulation, except where necessitated by the 35 framing of the doors. Moreover, there are very few vertical «clamping or nailing strips in the side walls' between the insulation 24 and the lin plate 9 or the lining 29, and do not even contact -ing 29, the only such strips being the cleats 45h at the door posts and similar cleats 45e at the 40 40 the surfaces thereof, so that Vthere is no direct metallic path from outside to inside- through corners of the car andat the ends of the ice tank bulkhead 29a. The necessity for more fre which heat might enter by conduction. The usual floor racks 3|, for supporting the quent vertical nailing cleats is obviated by the lading, are provided with hinged brackets, one of -solici steel outside plates 9 and the vertical ar 45 which is shown at 32, bolted to the bottom belt rangement of the lining boards 29. 'I'herefore the 45 rails. These bolts, like the bolts 28, do not extend insulation is compressed only >along the three horizontal‘belt rails and the few vertical cleats either to or through the -outer plate 9. ' tend through either the outside steel sheathing The ceiling structure, which is independent of the outer steel roof and is supported entirely by 45h and 45e, thus providing maximum effective ness. The construction of the end' walls, shown in 50 Fig. 6 and in part in Fig. 4, is substantially the same as that of the side walls, and need not be described in detail. Horizontal nailing cleats 23a and 21a correspond in function and approximate brackets 34 and bolts 35 (seev Fig. 5) . These car lines 33 also rest upon the upper edge of the side . position to the side belt rails 23 and 21. The 55 lining 29. 'I'he wooden ceiling lining 36, Figs. l outside end shell is a steel plate 9b. Roof hatches 50 the wall lining 29, comprises spaced transverse carlines 33, preferably wood, extending across be tween the upper inside belt rails 21, resting in notches 33a therein, and secured thereto by angle and 7, is nailed to the under sides of the oar f lines 33, and a layer of rigid insulating board 31 is laid upon and nailed to their upper sides. Molding strips 39 may be used if desired, atthe corners between the wall and ceiling lining. The wall insulation 24 is extended up about a the foot above the upper belt rails 21, and its free upper edges are bent over horizontally, as shown 65 at 24a, on top of the rigid ceiling insulation v31, so that no joint occurs in said blanket insulation at the upper corner-of the car. Moreover, the several layers of said blanket insulation are ex tended to different heights, so that, when bent 70 over, their edges are staggered, as shown at 24h, in Fig. 1. Between the edges of the bent over portions 24a of the side insulation are laid hori zontal layers 390i similar blanket insulation, resting upon the rigid insulation 31 and held be 75 tween it and the steel roof 40 to prevent shifting. 46 may be constructed in any desired manner, preferably with awoodframe 46a supported by the carlines 33, and a steel flange 40a secured to the roof 40 and extending into the wood frame 46a 60 as shown. The framing of the door openings-require the interruption of the insulation. At said doors, as shown at the right in Fig. 1, the three outer belt rails 2l, 22 and 23 are interrupted, and also the 65 lower and middle inside belt rails 25 and 26. The upperinside belt rail 21, however,- runs through above the door framing, thus providing continuous support for the ceiling carlines 33. The doorframe comprisesan outer wooden sill 41 which fills the space between the side sheathing plate 9 and the spacer I4, and which is rabbeted to re ceive a reinforcing angle member 48 attached to said side sheathing plate 9, which is itself formed with a ñange 49 „extending over said sill 41. A 2,111,707 3 , composition threshold plate 50, ofusual'type, the outside shell or inside lining, or both, thereby overlies the sill 41 and the edge- of the floor. i9, -' minimizing conduction of heat. Finally, the use and an inner sill 5i overlaps the inner edge of of a steel shell and roof, with a wood lining and said'plate. A gasket 52 is provided between the blanket insulation, permits thinner walls for inner sill 5| and the door. ‘ At the top of _ the door opening is a wooden equivalent insulating eifect, thereby saving space . " and weight. I claim: f ' ’ lintel 53 secured to the side plate 9 by an angle 1. In a refrigerator car, an outer' shell hav member 54 and bolts 55. The lintel lies imme diateiy under the belt rail 21 and reinforces it ing walls and a roof supported therebyya lining spaced within said shell and having walls and a 10 10 across the door'y opening, and also provides sup port for the lining 29 at this point. 'I'he blanket ceiling supported by said lining walls; blanket insulation above the door opening consists of three insulation within the spaces betweemthe shell strips 24e, matching the ceiling blankets 39 with walls and the lining walls, said -insulation extend staggered joints 2lb. These strips 24e extend _ ing continuously without horizontal joints from 15 around the horizontal corner-between the ceiling the iioor of the car to and above said ceiling and and the side wall over the door opening, as shown, being folded over horizontally to li'e on top of and have their lower edges clamped between a said ceiling; and additional blanket insulation in the space between said ceiling and said roof, ex- ` flange of the lintel 53 and the belt rail 2l. . The door itself, which is hung in any suitable 20 manner, not shown, comprises a rectangular wood frame ,56 to which an outside steel plate 51 is secured by means of angle members 5B and bolts 59, saidfbolts` preferably extending through the frame 5B in a direction parallel to the surface of 25 the plate 5l, as shown, rather than perpendicular to it, in order to minimize conduction of heat. The heads of all bolts used around the door are deeply countersunk andshould be covered with plastic insulation. A plurality of' layers of blan ket insulation 80 are laid inside the steel plate 5l! tending between the folded edges of said wall insulation, the joints between said wall insula 20 tion?'and said ceiling insulation being inthe hori zontal space'between the ceiling and the roof. ’ 2. In a refrigerator car, an outer shell hav ing 4.walls and .a' roof supported thereby; `a lin ing spaced within said shell and having walls 25 and a ceiling, supported by said lining walls; a plurality of insulating blankets within the spaces between the shell walls andthe lining walls, said blankets extending continuously without hori zontal `ioints from the floor of the car to and 30 of the door, and their edges are turned inwardly, > abovel said ceiling and being .folded horizontally as at 6i, land, clamped against the frame ‘55 by over said ceiling; and additional insulating nailing cleats B2. The wood lining 63 is nailed blankets resting upon said' ceiling and filling ‘ to the inside of the frame 56. 35 It will be seen from the foregoing that the con struction described provides a continuous blan ket insulation around‘the entire car, interrupted only at >the door frames and at the lower corners the space between the'folded edges of said wall blankets, said blankets being of different widths whereby the `ioints between the 'wall blankets and the ceiling blankets are staggered, _all said joints being between the ceiling and the roof. 3. In a refrigerator car having spaced inner _ where the inner floor is supported -on the spacers „ and outer side and end walls, a roof supported 40 It. At these points the use of wooden framing members reduces heat conduction to a minimum, - by the outer walls, land a ceilingsupported by wood itself having good insulating properties. the inner walls. and spaced `below said roof; Moreover, the area of these regions where the insulation between said inner and outer walls 4blanket insulation is interrupted is reduced to a `and said ceiling and said roof, said insulation, 45 minimum, especially along the lower corners, by extending said insulation down to the sub-ño'or i3, as shown in Fig. l, causing it to overlap the edges of the inner door. The continuity of the _blanket insulation, par-`50 ticularly around the upper corners of the car, is made possibi by the use of a’steel outer shell for comprising a blanket extending- continuously - from a point in one side' wall to and through one lend wall to a point »in the other side wall, said blanket also extending continuously- from the ' - bottoms of the walls to and around the corners between said walls and the ceiling, the upper 60 edge portion of saidblariket vbeing folded over the entire `c r, and by making the lining as a horizontally- to lie upon said ceiling, whereby separate structure whose weight‘vis supported en there are no'joints inj‘said blanket'at either the tirely by the under-frame and door, and which vertical corners between the side and end walls or the horizontal corners between the wallsjandl 55 carries the inner ceiling '_structure, and its> insu lation independent of the outer roof. 'I'he con the roof. . nections between the inner and outer belt rails 4. In a refrigerator car having` spaced ~inner 22 and 26, and 23 and 2l, are for insulation fas and outer side and end walls, a roof supported A tening purposes only. _The weight of the ceiling f by the outer walls, and a ceiling supported by the _ 60 stnucture and its insulation is borne by the ver- ' - inner walls and spaced below..said roof; insula tical compressive strength of lining boarding 29 tion between said inner and outer walls and said directly from the lower belt rail 25, which rests f ceiling and said roof, said insulation comprising upon the solid floor structure. This construction Y‘permits the blanket insulation to be carried around ~thc upper corners and into thef ceiling structure, which arrangement eliminates all joints 'a blanket extending continuously from a point in one side wall to and through-one end wall to a point in the other side wall, said blanket also extending continuously from the bottoms of thev walls,- and brings them into the ceiling where they walls to andaround the upper corners of the car, and another blanket lying upon said ceiling and are less liable to spread apart. . ñlling the space between the folded edges ofthe in the insulation at the corners and in the vertical ' - The described construction also provides dead air spaces in the walls’l floor, and ceiling, thereby increasing'the insulating effect; permits the least possible compression of the blanket insulation; wall blanket, wherebythere are no horizontal `ioints in the wail insulation, and no joints what ever at eitherthe vertical or upper horizontal _ "and enables all connecting bolts running through 5. In a refrigerator car, a metal outer shell the insulation tobe terminated short of either corners of the car. v. - having walls -and a roof supported thereby; n_on . 4 metallic lining wa/lls spaced within said shell walls; carlines extending across above .said lin ing Walls and supported thereby in spaced rela tion belowsaid roof; a ceiling lining secured to the under sides of said carlines; a layer of rigid insulation resting upon the upper sides of said carlines; and blanket insulation within -the space between the shell and the lining, said blanket insulation extending around the corners between 10 the walls and the ceiling, and having a hori zontal portion resting upon and wholly sup ported by said rigid insulation. 6. In a refrigerator car, a metal outer shell having walls and a roof supported thereby; non 15 metallic lining walls spaced within said shell walls; carlines extending across above said lin ing walls and supported thereby in spaced rela tion below said roof; a ceiling lining secured to the under sides of said carlines; a layer of rigid insulation resting upon the upper‘sides of said. carlines; insulating blankets Within the lspaces between the shell walls and the lining walls, the upper edge portions of` said blankets extending around the corners between the walls and the ceiling and being bent over the edge portions of said rigid insulation; and another insulating blanket lying upon said rigid insulation and 10 extending between the bent over edges of the ñrst mentioned-blankets, whereby the entire lin ing structure of the car is covered by blanket insulation, and the only joints therein are posi tioned in the horizontal portion thereof above the ceiling. GUSTAV P. TORBURN.