CA1081541A - Corrugated steel wall lining for boxcar - Google Patents
Corrugated steel wall lining for boxcarInfo
- Publication number
- CA1081541A CA1081541A CA292,618A CA292618A CA1081541A CA 1081541 A CA1081541 A CA 1081541A CA 292618 A CA292618 A CA 292618A CA 1081541 A CA1081541 A CA 1081541A
- Authority
- CA
- Canada
- Prior art keywords
- channels
- spaced
- sheet
- metal sheet
- bottom wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Y02T30/34—
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- Connection Of Plates (AREA)
Abstract
CORRUGATED STEEL WALL LINING FOR BOXCAR
Abstract of the Disclosure A metal sheet for lining side walls of a freight railway car having a plurality of spaced-apart vertical wall supports. The metal sheet comprises a plurality of spaced-apart elongated channels formed across a flat surface of the sheet. Each of the channels has a bottom wall spaced from the flat surface of the sheet. A plurality of spaced-apart apertures are provided in the bottom wall of at least some of the channels to permit an attachment element to con-nect the sheet to an associated one of the vertical wall supports. The channels are configured to receive an anchor bar having an attachment part and securable ends. The securable ends are weldable in the channels in close proxi-mity to an associated one of the apertures so that the anchor bar is rigidly connected, through its weld and the bottom wall, in close proximity to the support, whereby cargo re-taining strapping, or the like, may be attached to the attach-ment part to secure cargo in the railway car.
Abstract of the Disclosure A metal sheet for lining side walls of a freight railway car having a plurality of spaced-apart vertical wall supports. The metal sheet comprises a plurality of spaced-apart elongated channels formed across a flat surface of the sheet. Each of the channels has a bottom wall spaced from the flat surface of the sheet. A plurality of spaced-apart apertures are provided in the bottom wall of at least some of the channels to permit an attachment element to con-nect the sheet to an associated one of the vertical wall supports. The channels are configured to receive an anchor bar having an attachment part and securable ends. The securable ends are weldable in the channels in close proxi-mity to an associated one of the apertures so that the anchor bar is rigidly connected, through its weld and the bottom wall, in close proximity to the support, whereby cargo re-taining strapping, or the like, may be attached to the attach-ment part to secure cargo in the railway car.
Description
BACI~GROUND OF INVENTION
(a) Field of the Invention The present invention relates to a metal sheet construction for use in lining walls, and particularly, but not exclusively, walls of freight railway cars, where it is necessary to attach strapping, or the like, to the walls.
(b) Description of Prior Art It is known to provide railway freight cars with anchorin~ devices secured to the side walls whereby to attach strapping in order to secure cargo rigidly within the railway car. However, in many instances, the anchoring devices are merely secured to the wall surface and not attached to the framework. Consequently, these anchoring elements are often torn out of the wall or deform themselves or the wall by excessive force applied to the strapping by ;;;
shifting loads.
SUMMARY OF INVENTION `
It is a feature of the present invention to pro-vide a metal sheet for wall lining incorporating anchor bars therein which are rigidly securable in close proximity to wall supports.
A further feature of the present invention is to -~
provide a corrugated metal sheet for wall lining wherein wall sections of the railway freight car or an entire wall can be fitted with a single sheet having provided therein a plurality of anchor bars and wherein the sheets are secured to wall supports by welds or other fastening means in the sheet and in close proximity to the anchor barsO
A further feature of the present invention is to provide an improved corrugated metal sheet for wall lining and wherein the sheet is secured to wall supports by means
(a) Field of the Invention The present invention relates to a metal sheet construction for use in lining walls, and particularly, but not exclusively, walls of freight railway cars, where it is necessary to attach strapping, or the like, to the walls.
(b) Description of Prior Art It is known to provide railway freight cars with anchorin~ devices secured to the side walls whereby to attach strapping in order to secure cargo rigidly within the railway car. However, in many instances, the anchoring devices are merely secured to the wall surface and not attached to the framework. Consequently, these anchoring elements are often torn out of the wall or deform themselves or the wall by excessive force applied to the strapping by ;;;
shifting loads.
SUMMARY OF INVENTION `
It is a feature of the present invention to pro-vide a metal sheet for wall lining incorporating anchor bars therein which are rigidly securable in close proximity to wall supports.
A further feature of the present invention is to -~
provide a corrugated metal sheet for wall lining wherein wall sections of the railway freight car or an entire wall can be fitted with a single sheet having provided therein a plurality of anchor bars and wherein the sheets are secured to wall supports by welds or other fastening means in the sheet and in close proximity to the anchor barsO
A further feature of the present invention is to provide an improved corrugated metal sheet for wall lining and wherein the sheet is secured to wall supports by means
- 2 -s~
of welds or other fastening means formed along cavities positioned at predeteremined intervals within the sheet, the corrugated sheet forming a plurality of spaced-apart channels adapted to receive therein one or more anchor bars.
According ~o the above features, from a broad aspect, the present invention provides a corrugated metal sheet for linin~ at least opposed side walls of a freight compartment having a plurality of spaced-apart vertical wall supports, The metal sheet comprises a plurality of spaced-apart elongated channels formed across a smooth top surface of the sheet. The channels extend horizontally and transverse to the vertical wall supports, Each of the channels has a flat bottom wall spaced from said sur-face and opposed connecting walls extending from the bottom wall to the top surface. A plurality of spaced-apart apertures are provided in the bottom wall of at least some of the channels to permit an attachment means to connect the sheet to a plurality of the vertical wall supports. The channels are configured to receive individual anchor bars for ~ecurement therein. Each anchor bar has an attachment part and oppo~ed weldable end supports se-curable to a respective opposed connecting wall of the channel. The weldable end 5upports are welded in close non-interferring proximity to an associated one of the apertures so that the anchor bar is rigidly connected through its weld and the bottom wall in close proximity to the support whereby cargo retaining means may be attached to the attachment part to secure cargo in the freight compartment. The anchor bar also fills the associated channel in a bridge area to add rigldity to the corrugated metal sheet.
.
~ . .
. .,. . ::, , -L54~
BRIEF DESCRIPTIO~ OF DRAWINGS
A preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which: `
FIGURE 1 is a fragmented plan view of the metal sheet of the present invention, FIGURE 2 is a sectional end vhew of a portion of the metal sheet of Figure 1, FIGURE 3 is a plan view illustrating a portion of the metal sheet where the anchor bar is secured, FIGURE 4 is a side view of Figure 3, --;
FIGURE 5 is a plan view of an end ~ection of the sheet of Figure 1 showing a feature thereof: and FIGURE 6 is a bottom end view along section lines `:
VI-VI of Figure 5.
-3a-~ .
.. .. . . . . .
- 1~8~541 DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to the drawi,ngs, and more particu-larly to Figures 1 and 2, there is shown generally at 10, the metal sheet of the present invention for lining walls having spaced-apart vertical supports. The sheet comprises generally a plurality of cavities herein constituted by a plurality of spaced-apart elongated channels 11 forme~
across the sheet with each channel 11 extending parallel to one another. Each channel has a flat bottom wall 12 and outwardly tapering side walls 13 extending from the bottom wall 12 to the flat top surface 14 of the sheet 10.
~ A plurality of apertures 15 extend at spaced-apart intervals along each of the channels 11 and extend transverse to the longitudinal axis of the channels 11.
~ ~ As hereinshown, the ~ 15 are provided in pairs 16, -each pair 16 consisting of two ~losely sp~ced elongated slot apertures 15~ Each pair 16 of slot apertures 15 of each channel 11 are in transverse alignment with one another.
The spacing between the long axis 17 of the aligned pairs ~0 of apertures is predetermined whereby t,hese' pairs of aper-tures are in alignment with wall supports 18 to which the sheet 10 is to be secured.
Referring now additionally to Figures 3 and ~, there is shown a plurality of anchor bars 20 secured within ~5 the channels 11 and in alignment with the pairs 16 of aper-tures 15. Although Figure 1 shows anchor bars 2d associated with each pair of apertures, it is clearly understood that these could be secured with random pairs 16 of apertures or with the pairs of apertures in every second one of the channels 11.
The anchor bars 20 are each provided with an ,~
attachment part, hereinshown as a bridge section 21 having 8~S4~
securement means or end supports 22 which are weldable to a respective one of the tapering side walls 13 of the channels 11. As seen more clearly in Figure 4, the bridge section 21 is spaced forwardly of ~he bottom wall 12 and the end supports 22 are provided with angulated bearing sur-~aces 23 which lie ~lat on the an~ulated side walls 13 of the channels. The end supports 22 are secured within the channels 20 by means of securement welds 24 which may be provided on opposed sides 25 of each end support 22 and additionally about its outer end 26. Thus, the anchor bar 20 is rigidly secured across the channel 11.
In order to secure the sheet 10 to the wall sup-ports 18, the sheet is fitted whereby the pairs 16 of aper-tures 15 are aligned with a respective one of the supports 18. This is more clearly shown in Figure 3 and it can be seen that the sheet 10 is attached to the support 18 by attachment welds 28 interconnecting a marginal portion 29 of the flat bottom wall 12 near each slot aperture 15 to a mf~d~,kh~ portion 30 of the support 18. Of course, a plug weld could interconnect all of the circumference of the slot aperture 150 As can be seen, the apertures 15 extend :
along a substantial transverse portion of the flat bottom wall 12 whereby the opposed ends 31 of each aperture 15 are in close proximity to the securement weld 24 of the end sup-ports 22. Thus, the anchor bar 20 is rigidly connected through the welds 24 and 28 and, of course, the channels of the sheet 10, in close proximity to the wall support 18.
This provides for a rigid anchoring of the anchor bar 20 as any force exerted thereon i5 also exerted on the wall sup-port 18.
As shown in the preferred embodiment of the pre-sent invention described herein, each pair 16 o apertures ~8~
15 are spaced-apart whereby each aperture 15 lies on a respective side of the bridge section 21 of the anchor bar 20. This facilitates the formation of the weld 28. Fur-ther, the anchor bar 20 could be welded in the channel 11 after the sheet 10 is welded to the wall supports 18. If the wall supports 18 are constructed of material not cap-able of receiving the weld 28, then a metal bracket (not shown) could be secured to the wall su~port to receive the weld.
It is also foreseen that the cavities, herein channels 11 of sheet 10, may be constituted by rectangularly shaped cavities extending in transverse alignment in the top surface 14 of the sheet and being of the same cross-section as the channels 11 whereby to receive the anchor bars 20 in the same manner as described hereinabove. ALSol a single aperture 15 may be provided and of different configuration than that herein describedO For example, the aperture could also be rectangular and extending entirely across the width of the bridge section 21 whereby a weld could be made on each side of the cavity and in close proximity to the se-curement weld 24 on each side of the end suppor~s 22 of the anchor bar 20. Still further, the anchor bar 20 may be of different configuration and instead of a bridge section, there could be provided an attachment ring adapted for attachment of strapping ropes, or the like thereto. The shape of the bottom wall and side walls of the cavity could also vary from the one disclosed herein provided that the anchor bar is attached to the sheet and the sheet attached to the post in such a manner as to provide attachment of the anchor bar in close proximity to the wall supports 18.
The above description discloses a particular attachment means to connect the sheet 10 to the wall supports 1a~8~LS9L3L
18. However, in the construction of new walls where an outside sheet is not already secured to the supports 18, the sheet 10 may be welded to the supports in its back side where the channel bottom wall 12 abuts the supports 18.
Thus, thè slot apertures 15 would not be required. Also, instead of slot apertures 15 there may be provided circular holes such as shown at 50 in Figure 5 to receive therein a fastener such as a screw or rivet, as shown at 51~ If the supports 18 are wood pieces, the fasteners could be nails or screws. In all instances, the fasteners are positioned in the channels 11 to be recessed from the top surface 14 not to interfere with commodity placed against the sheet 10.
Referring now to Figures 5 and 6, there is shown the construction of the end edge 35 of the sheet 10. As lS can be shown, a slot 36 extends from the end edge 35 of the sheet in the flat surface 14 thereof immediately adjacent the tapering side wall 13 of the channel 11. This will permit the end portions 37 of the sheet to be bent inwardly, as shown in Figure 6, to have a smooth edge weldable to a corner post structure such as 38.
As shown in Figure 1, the top and bottom edges 39 and 40 of the sheet 10 are severed at predetermined locations i.e. at the junction of a side wall 13 and bottom wall 12 of a channel 11, whereby the sheets can be stacked one on top of the other with the joint between sheets sub-stantially concealed and repeating the corrugated pattern.
Also, this type of edge~ permits the shee-t 10 to be neatly fitted in the bottom portion of a wall wherein the top part is constructed of wood panelling. Thus, the top edge por-tion 39 could be secured under the bottom edge rear wall of the bottom plank (not shown). This -type of sheet can also find utility in refittlng existing railway cars with a new 8~i4~L
inner wall lining, as such railway cars are already pro-vided with spaced vertical wall supports. The sheet lO is roll formed and can be of any desired length~ Also, the sheet is very rigid as it is provided with corrugations and the channels between corrugations are ~urther provided with the anchor bars 20 which adds to the rigidity of the entire sheet as these bars 20 fill the cavities in bridged areas. A further advantage of this sheet structure is that it is easy and quickly assembled and is hard-wearing. Fur-ther , the cavities in the sheet lO do not need to be chan-nels ll and could be spaced-apart depressions with substan-tially vertical side walls extending at right angles to the top surface 14. Similarly, the channels ll may have vertical side walls 13 rather than angularly sloping ones.
An advantage of the angular side walls 13 is that they are easier to clean. It is also foreseen that the sheets lO
may be secured with the channels ll extending vertically and the wall supports 18 extending horizon-tally.
It is within the ambit of the present invention to provide any other obvious modifications of the metal sheet, provided such modifications fall within the ambit of the broad claim as appended hereto.
of welds or other fastening means formed along cavities positioned at predeteremined intervals within the sheet, the corrugated sheet forming a plurality of spaced-apart channels adapted to receive therein one or more anchor bars.
According ~o the above features, from a broad aspect, the present invention provides a corrugated metal sheet for linin~ at least opposed side walls of a freight compartment having a plurality of spaced-apart vertical wall supports, The metal sheet comprises a plurality of spaced-apart elongated channels formed across a smooth top surface of the sheet. The channels extend horizontally and transverse to the vertical wall supports, Each of the channels has a flat bottom wall spaced from said sur-face and opposed connecting walls extending from the bottom wall to the top surface. A plurality of spaced-apart apertures are provided in the bottom wall of at least some of the channels to permit an attachment means to connect the sheet to a plurality of the vertical wall supports. The channels are configured to receive individual anchor bars for ~ecurement therein. Each anchor bar has an attachment part and oppo~ed weldable end supports se-curable to a respective opposed connecting wall of the channel. The weldable end 5upports are welded in close non-interferring proximity to an associated one of the apertures so that the anchor bar is rigidly connected through its weld and the bottom wall in close proximity to the support whereby cargo retaining means may be attached to the attachment part to secure cargo in the freight compartment. The anchor bar also fills the associated channel in a bridge area to add rigldity to the corrugated metal sheet.
.
~ . .
. .,. . ::, , -L54~
BRIEF DESCRIPTIO~ OF DRAWINGS
A preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which: `
FIGURE 1 is a fragmented plan view of the metal sheet of the present invention, FIGURE 2 is a sectional end vhew of a portion of the metal sheet of Figure 1, FIGURE 3 is a plan view illustrating a portion of the metal sheet where the anchor bar is secured, FIGURE 4 is a side view of Figure 3, --;
FIGURE 5 is a plan view of an end ~ection of the sheet of Figure 1 showing a feature thereof: and FIGURE 6 is a bottom end view along section lines `:
VI-VI of Figure 5.
-3a-~ .
.. .. . . . . .
- 1~8~541 DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to the drawi,ngs, and more particu-larly to Figures 1 and 2, there is shown generally at 10, the metal sheet of the present invention for lining walls having spaced-apart vertical supports. The sheet comprises generally a plurality of cavities herein constituted by a plurality of spaced-apart elongated channels 11 forme~
across the sheet with each channel 11 extending parallel to one another. Each channel has a flat bottom wall 12 and outwardly tapering side walls 13 extending from the bottom wall 12 to the flat top surface 14 of the sheet 10.
~ A plurality of apertures 15 extend at spaced-apart intervals along each of the channels 11 and extend transverse to the longitudinal axis of the channels 11.
~ ~ As hereinshown, the ~ 15 are provided in pairs 16, -each pair 16 consisting of two ~losely sp~ced elongated slot apertures 15~ Each pair 16 of slot apertures 15 of each channel 11 are in transverse alignment with one another.
The spacing between the long axis 17 of the aligned pairs ~0 of apertures is predetermined whereby t,hese' pairs of aper-tures are in alignment with wall supports 18 to which the sheet 10 is to be secured.
Referring now additionally to Figures 3 and ~, there is shown a plurality of anchor bars 20 secured within ~5 the channels 11 and in alignment with the pairs 16 of aper-tures 15. Although Figure 1 shows anchor bars 2d associated with each pair of apertures, it is clearly understood that these could be secured with random pairs 16 of apertures or with the pairs of apertures in every second one of the channels 11.
The anchor bars 20 are each provided with an ,~
attachment part, hereinshown as a bridge section 21 having 8~S4~
securement means or end supports 22 which are weldable to a respective one of the tapering side walls 13 of the channels 11. As seen more clearly in Figure 4, the bridge section 21 is spaced forwardly of ~he bottom wall 12 and the end supports 22 are provided with angulated bearing sur-~aces 23 which lie ~lat on the an~ulated side walls 13 of the channels. The end supports 22 are secured within the channels 20 by means of securement welds 24 which may be provided on opposed sides 25 of each end support 22 and additionally about its outer end 26. Thus, the anchor bar 20 is rigidly secured across the channel 11.
In order to secure the sheet 10 to the wall sup-ports 18, the sheet is fitted whereby the pairs 16 of aper-tures 15 are aligned with a respective one of the supports 18. This is more clearly shown in Figure 3 and it can be seen that the sheet 10 is attached to the support 18 by attachment welds 28 interconnecting a marginal portion 29 of the flat bottom wall 12 near each slot aperture 15 to a mf~d~,kh~ portion 30 of the support 18. Of course, a plug weld could interconnect all of the circumference of the slot aperture 150 As can be seen, the apertures 15 extend :
along a substantial transverse portion of the flat bottom wall 12 whereby the opposed ends 31 of each aperture 15 are in close proximity to the securement weld 24 of the end sup-ports 22. Thus, the anchor bar 20 is rigidly connected through the welds 24 and 28 and, of course, the channels of the sheet 10, in close proximity to the wall support 18.
This provides for a rigid anchoring of the anchor bar 20 as any force exerted thereon i5 also exerted on the wall sup-port 18.
As shown in the preferred embodiment of the pre-sent invention described herein, each pair 16 o apertures ~8~
15 are spaced-apart whereby each aperture 15 lies on a respective side of the bridge section 21 of the anchor bar 20. This facilitates the formation of the weld 28. Fur-ther, the anchor bar 20 could be welded in the channel 11 after the sheet 10 is welded to the wall supports 18. If the wall supports 18 are constructed of material not cap-able of receiving the weld 28, then a metal bracket (not shown) could be secured to the wall su~port to receive the weld.
It is also foreseen that the cavities, herein channels 11 of sheet 10, may be constituted by rectangularly shaped cavities extending in transverse alignment in the top surface 14 of the sheet and being of the same cross-section as the channels 11 whereby to receive the anchor bars 20 in the same manner as described hereinabove. ALSol a single aperture 15 may be provided and of different configuration than that herein describedO For example, the aperture could also be rectangular and extending entirely across the width of the bridge section 21 whereby a weld could be made on each side of the cavity and in close proximity to the se-curement weld 24 on each side of the end suppor~s 22 of the anchor bar 20. Still further, the anchor bar 20 may be of different configuration and instead of a bridge section, there could be provided an attachment ring adapted for attachment of strapping ropes, or the like thereto. The shape of the bottom wall and side walls of the cavity could also vary from the one disclosed herein provided that the anchor bar is attached to the sheet and the sheet attached to the post in such a manner as to provide attachment of the anchor bar in close proximity to the wall supports 18.
The above description discloses a particular attachment means to connect the sheet 10 to the wall supports 1a~8~LS9L3L
18. However, in the construction of new walls where an outside sheet is not already secured to the supports 18, the sheet 10 may be welded to the supports in its back side where the channel bottom wall 12 abuts the supports 18.
Thus, thè slot apertures 15 would not be required. Also, instead of slot apertures 15 there may be provided circular holes such as shown at 50 in Figure 5 to receive therein a fastener such as a screw or rivet, as shown at 51~ If the supports 18 are wood pieces, the fasteners could be nails or screws. In all instances, the fasteners are positioned in the channels 11 to be recessed from the top surface 14 not to interfere with commodity placed against the sheet 10.
Referring now to Figures 5 and 6, there is shown the construction of the end edge 35 of the sheet 10. As lS can be shown, a slot 36 extends from the end edge 35 of the sheet in the flat surface 14 thereof immediately adjacent the tapering side wall 13 of the channel 11. This will permit the end portions 37 of the sheet to be bent inwardly, as shown in Figure 6, to have a smooth edge weldable to a corner post structure such as 38.
As shown in Figure 1, the top and bottom edges 39 and 40 of the sheet 10 are severed at predetermined locations i.e. at the junction of a side wall 13 and bottom wall 12 of a channel 11, whereby the sheets can be stacked one on top of the other with the joint between sheets sub-stantially concealed and repeating the corrugated pattern.
Also, this type of edge~ permits the shee-t 10 to be neatly fitted in the bottom portion of a wall wherein the top part is constructed of wood panelling. Thus, the top edge por-tion 39 could be secured under the bottom edge rear wall of the bottom plank (not shown). This -type of sheet can also find utility in refittlng existing railway cars with a new 8~i4~L
inner wall lining, as such railway cars are already pro-vided with spaced vertical wall supports. The sheet lO is roll formed and can be of any desired length~ Also, the sheet is very rigid as it is provided with corrugations and the channels between corrugations are ~urther provided with the anchor bars 20 which adds to the rigidity of the entire sheet as these bars 20 fill the cavities in bridged areas. A further advantage of this sheet structure is that it is easy and quickly assembled and is hard-wearing. Fur-ther , the cavities in the sheet lO do not need to be chan-nels ll and could be spaced-apart depressions with substan-tially vertical side walls extending at right angles to the top surface 14. Similarly, the channels ll may have vertical side walls 13 rather than angularly sloping ones.
An advantage of the angular side walls 13 is that they are easier to clean. It is also foreseen that the sheets lO
may be secured with the channels ll extending vertically and the wall supports 18 extending horizon-tally.
It is within the ambit of the present invention to provide any other obvious modifications of the metal sheet, provided such modifications fall within the ambit of the broad claim as appended hereto.
Claims (7)
1. A corrugated metal sheet for lining at least opposed side walls of a freight compartment having a plurality of spaced-apart vertical wall supports, said metal sheet comprising a plurality of spaced-apart elongated channels formed across a smooth top surface of said sheet, said channels extending horizontally and transverse to said vertical wall supports, each of said channels having a flat bottom wall spaced from said surface and opposed connecting walls extending from said bottom wall to said top surface, a plurality of spaced-apart apertures in said bottom wall of at least some of said channels to permit an attachment means to connect said sheet to a plurality of said vertical wall supports, said channels being configured to receive individual anchor bars for secure-ment therein, each anchor bar having an attachment part and opposed weldable end supports securable to a respective opposed connecting wall of said channel, said weldable end supports being welded in said channels in close non-interferring proximity to an associated one of said apertures so that said anchor bar is rigidly connected through its weld and said bottom wall in close proximity to said support whereby cargo retaining means may be attached to said attachment part to secure cargo in said freight compartment, said anchor bar also filling said associated channel in a bridge area to add rigidity to said corrugated metal sheet.
2. A metal sheet as claimed in claim 1, wherein said anchor bar attachment part is a bridge section extending between said opposed weldable end supports.
3. A metal sheet as claimed in claim 2, wherein said fastening means is an attachment weld extending transverse to the longitudinal axis of said channels along said aperture.
4. A metal sheet as claimed in claim 3, wherein said aperture is dimensioned to permit two of said attachment welds to be made and spaced from one another on a respective side of said bridge section, each said attachment welds inter-connecting a marginal portion of said flat bottom wall near said aperture to a metallic portion of a respective one of said vertical wall supports, said weldable end supports each being welded to a respective one of said side walls.
5. A metal sheet as claimed in claim 2, wherein said aperture is a narrow slot aperture extending transverse to the longitudinal axis of said channels, there being a pair of closely spaced slot apertures positioned at predetermined intervals along at least some of said channels, each slot aperture of each pair of slot apertures being spaced-apart whereby they lie on a respective side of said bridge section of said anchor bar.
6. A metal sheet as claimed in claim 5, wherein said opposed connecting walls are angularly disposed, each said slot aperture extending along a substantial transverse portion of said flat bottom wall whereby their opposed ends are in close non-interferring proximity to said weldable end supports of said anchor bar which are welded to a respective one of said angular side walls, each attachment weld interconnecting a marginal portion of said flat bottom wall near each slot aperture of said pair of slot apertures to a metallic portion of a respective one of said vertical wall supports.
7. A metal sheet as claimed in claim 2, wherein said aperture is a through bore to receive a fastener therethrough to secure said bottom wall to a wall support, said fastener being recessed from said top surface in a respective one of said channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA292,618A CA1081541A (en) | 1977-12-07 | 1977-12-07 | Corrugated steel wall lining for boxcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA292,618A CA1081541A (en) | 1977-12-07 | 1977-12-07 | Corrugated steel wall lining for boxcar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081541A true CA1081541A (en) | 1980-07-15 |
Family
ID=4110232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA292,618A Expired CA1081541A (en) | 1977-12-07 | 1977-12-07 | Corrugated steel wall lining for boxcar |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1081541A (en) |
-
1977
- 1977-12-07 CA CA292,618A patent/CA1081541A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |