This invention relates generally to center beam rail road cars and to lading securement apparatus for those rail road cars.
Center beam rail road cars, in cross-section, generally have a body having a flat car deck and a center beam web structure running along the longitudinal center-line of, and standing upright from, the deck. The center beam structure is carried on a pair of rail car trucks. The rack, or center beam structure, has a pair of bulkheads at either longitudinal end. The bulkheads extend transversely relative to the rolling direction of the car. The lading supporting structure of the body includes laterally extending deck sheets or bunks mounted above, and spanning the space between, the trucks.
The center beam web structure is typically in the nature of an open frame truss for carrying vertical shear and bending loads. It stands upright from the deck and runs along the longitudinal centerline of the car between the end bulkheads. This kind of webwork structure can be constructed from an array of parallel uprights and appropriate diagonal bracing. Typically, a center sill extends the length of the car, and the posts extend upwardly from the center sill. Most often, a top truss assembly is mounted on top of the vertical web and extends laterally to either side of the centerline of the car. The top truss is part of an upper beam assembly, (that is, the upper or top flange end of the center beam) and is usually manufactured as a wide flange, or wide flange-simulating truss, both to co-operate with the center sill to resist vertical bending, and also to resist transverse bending due to lateral horizontal loading of the car while travelling on a curve. The center beam thus formed is conceptually a deep girder beam whose bottom flange is the center sill, and whose top flange is the top truss (or analogous structure) of the car.
Center beam cars are commonly used to transport packaged bundles of lumber, although other loads such as pipe, steel, engineered wood products, or other goods can also be carried. The space above the decking and below the lateral wings of the top truss on each side of the vertical web of the center beam forms left and right bunks upon which bundles of wood can be loaded. The base of the bunk often includes risers that are mounted to slant inward, and the vertical web of the center beam is generally tapered from bottom to top, such that when the bundles are stacked, the overall stack leans inward toward the longitudinal centerline of the car.
Lading is most typically secured in place using straps or cables. Generally, the straps extend from a winch device mounted at deck level, upward outside the bundles, to a top fitting. The top fitting can be located at one of several intermediate heights for partially loaded cars. Most typically, the cars are fully loaded and the strap terminates at a fitting mounted to the outboard wing of the upper beam assembly. Inasmuch as the upper beam assembly is narrower than the bundles, when the strap is drawn taut by tightening the winch, it binds on the upper outer corner of the topmost bundle and exerts a force inwardly and downwardly, tending thereby to hold the stack in place tight against the center beam web.
Each bundle typically contains a number of pieces of lumber, commonly the nominal 2″×4″, 2″×6″, 2″×8″ or other standard size. The lengths of the bundles vary, typically ranging from 8′ to 24′, in 2′ increments. The most common bundle size is nominally 32 inches deep by 49 inches wide, although 24 inch deep bundles are also used, and 16 inch deep bundles can be used, although these latter are generally less common. A 32 inch nominal bundle may contain stacks of 21 boards, each 1½ inch thick, making 31½ inches, and may include a further 1½ inches of dunnage for a total of 33 inches. The bundles are loaded such that the longitudinal axes of the boards are parallel to the longitudinal, or rolling, axis of the car generally. The bundles are often wrapped in a plastic sheeting to provide some protection from rain and snow, and also to discourage embedment of abrasive materials such as sand, in the boards. The bundles are stacked on the car bunks with the dunnage located between the bundles such that a fork-lift can be used for loading and unloading. For bundles of kiln dried softwood lumber the loading density is typically taken as being in the range of 1600 to 2000 Lbs. per 1000 board-feet.
Existing center beam cars tend to have been made to fall within the car design envelope, or outline, of the American Association of Railroads standard AAR Plate C, and tend to have a flat main deck that runs at the level of the top of the main bolsters at either end of the car. In U.S. Pat. No. 4,951,575, of Dominguez et al., issued Aug. 28, 1990, a center beam car is shown that falls within the design envelope of plate C, and also has a depressed center deck between the car trucks.
In center beam cars having a top truss with cantilevered truss wings extending transversely outboard from the top chord, the typical method of securing the lading, namely the bundles of lumber, in place is to fasten an array of cables, or webs, to the outboard wings of the top truss, to run the cable or web outboard about the lading, and then to anchor each cable, or web at deck level using a winch device. The winches and cables (or webs) are usually spaced along the car on pitches corresponding to the longitudinal pitch between the various upright posts of the center beam, typically on about 4 ft centers. If the car is not fully laden, the cables, or webs, can typically be hooked to attachment fittings at lower heights on the center beam posts.
In some types of center beam cars, and in some types of bulkhead flat cars that do not have center beams, or center partitions, the cables or webs have one end anchored on one side of the deck, and the web or cable is thrown clear over the lading to the other side of the car, and then a winch on the other side of the car is used to tighten the cable or web in place at the given longitudinal station. In some cases a spacer, or load spreader bracket is placed between the cable and the lading at the outer top corner of the lading where the cable by itself might otherwise dig into the lading when tightened.
The present inventors prefer webs as opposed to cables, such as were formerly more commonly used. The webs tend to be made of woven NYLON or polyester, or PVC, and can be obtained, typically in 4 inch wide bands, although other widths are available. Typically the winch device has a spindle with a gear on one end that co-operates with a pawl. The spindle has a central slot through which the web can be wrapped, and then a bar is fed into an eye at the end of the spindle, and the end of the web is spooled up until tight. The pawl discourages the gear from turning in the loosening direction. ¾ drives are also used to tighten the web. The square for the ¾ drive can also be in the spindle, near the eye.
It has been suggested that these webs can withstand significant tensile loads, possibly as much as 20,000 lbs. in tension. The webs tend to be portable, and moderately expensive to replace. As such, they are quite attractive to thieves since a web band of this nature can be put to many household, cottage, or other uses not necessarily intended by the rail car manufacturer or operator. The webs are all the more attractive for unintended purposes if they are particularly long, as is the case when the web is of sufficient length to be passed entirely about the load from one side of the car to the other. Aside from their attractiveness to thieves, the webs may also be susceptible to needless damage during loading and unloading of the railroad cars, and when stowed for an empty return passage.
When the cars are being returned empty, the straps are typically tightened directly between the center beam and the winch, and remain exposed to the weather. Also, in remaining exposed, the webs may attract the attention of opportunistic thieves in a way that they might not otherwise do if stored out of sight. It would be advantageous to have an apparatus that permits the webs to be collected in a fashion suitable for storage, such as a reel, and a storage compartment that may keep the reeled up webs out of sight during empty operation of the cars.
A flat deck center beam car, whether having inclined risers and tapered posts or a fully planar horizontal deck with vertically sided posts will typically have a main deck height of approximately 41 inches above top of rail. Yard personnel working adjacent to the car may find this to be a convenient working height, like a tall work bench. It may not be a convenient height to climb without a ladder or footstep. In such a situation it may be advantageous to have a reeling mechanism for spooling the webbing that is located near or at the side sill. As such, a person standing adjacent to the rail car may be able to operate the mechanism without ascending the deck. In this position it would be advantageous to have a reeling mechanism, and a storage mechanism that is located in, or movable to, a position clear of the deck so that it does not obstruct loading or unloading.
By contrast, for a dropped deck center beam car having a depressed central deck portion the medial deck height may be of the order of 20 to 30 inches above top of rail, and may tend to be mounted relatively easily without the need for a ladder. Further, if the end portions are raised to a height of 50 to 60 inches above top of rail, it may be easier first to ascend the medial portion of the deck, then to ascend the end portions of the deck and to work from deck level rather than working from trackside. In such a situation, a reeling mechanism and storage boxes placed in the space between the posts of the center beam may be advantageous.
In an aspect of the invention there is a center beam rail road car having a deck structure upon which lading can be supported. The deck structure is carried by spaced apart rail car trucks. A central beam structure runs along the deck structure and extends upwardly therefrom. The rail car has lading securement apparatus for restraining lading carried upon the deck structure. Lading securement storage apparatus is mounted to the deck structure. The lading securement apparatus includes at least one band of webbing for wrapping about the lading, securing equipment mounted to at least one of (a) the deck structure and (b) the central beam structure, by which to anchor the webbing to at least one of (a) the deck structure and (b) the central beam structure. The lading securement storage apparatus includes a winder mounted to the deck structure, the winder being operable to form the band into a storage configuration; an enclosure mounted to the deck structure, the enclosure having a storage space defined therein for accommodating the band. The deck structure being free of obstruction by the winder and the enclosure when lading is carried by the deck structure.
In an additional feature of that aspect of the invention the securing equipment includes at least one end attachment fitting by which to anchor an end of the band of webbing to at least one of (a) the deck structure and (b) the central beam structure. A tightening member is mounted to one of (a) the deck structure and (b) the central beam structure, the tightening member being operable to anchor another end of the band and to tighten the band about the lading. In another feature, the deck structure includes a pair of first and second spaced apart side sills and the tightening member is a winch mounted to one of the side sills. In a further additional feature, the deck structure includes a pair of first and second spaced apart side sills, and the attachment fitting is a winch mounted to one of the side sills.
In still another feature, the winding mechanism includes a first member having a socket and a removable crank member engageable with the socket. In still another additional feature, the first member is movably connected to the deck structure and is movable between a spooling position proud of the deck structure to an inoperative position shy of the deck structure. In yet another feature, the first member is pivotally attached to the deck structure and is movable between a spooling position proud of the deck structure and an inoperative position in which the deck structure is free of obstruction by the first member. In still another feature, the first member is movable to a retracted position lying within the enclosure.
In yet again another additional feature, in the operative position, the first member is located above the enclosure and the crank member is releasable from the socket once a reel is formed thereon, whereby a reel formed on the crank can fall into the enclosure when the crank is disengaged from the socket. In still another feature, the first member is rigidly fixed to the enclosure, and the enclosure is pivotally mounted to the deck structure. In a further feature, the enclosure has a lid, the deck structure defines a lower lading bunk interface above which lading is carried, and in the inoperative position of the first member, the lid lies one of (a) flush with the interface and (b) shy of the interface.
In a yet further feature, the winder includes a crank and the enclosure has a socket in which to mount the crank for winding the webbing. In a further additional feature, the enclosure is movably mounted to the deck structure. In another feature, the car has lading bunk envelopes defined above the deck structure and to either side of the central beam structure. The winder includes a crank. The enclosure has a pair of opposed walls having apertures formed therein to define a socket for receiving the crank in a position for winding the webbing and the enclosure is pivotally mounted to the deck structure, the enclosure being movable to a stored position clear of the lading bunk envelopes.
In another aspect of the invention there is a rail road car having a deck structure for supporting lading, the deck structure being supported on railcar trucks for rolling motion along railroad tracks. Lading securement apparatus is connected to the deck structure, the lading securement apparatus including at least one web band for wrapping about the lading and at least one tightening mechanism operable to draw the band tight about the lading to restrain the lading relative to the deck structure. A lading securement storage apparatus is mounted to the deck structure, the lading securement storage apparatus including an enclosure mounted to the deck structure, the enclosure having an opening defined therein for admitting the web band to be placed within the enclosure. The enclosure is movable to a first position in which the opening is exposed to permit the web band to be introduced therein. The enclosure being movable to a second position in which the opening is obstructed.
In an additional feature of that aspect of the invention, the enclosure is mounted at a hinge, and is pivotable about the hinge between the first and second positions. In another feature, the storage apparatus includes a winding apparatus mountable therewith, the winding apparatus being operable to coil the web band. In still another feature, the winding apparatus includes a crank. In yet another feature, the crank includes a radial slot through which the web band can be threaded. In still another feature, the enclosure includes a socket, and the lading securement storage apparatus includes a crank mountable within the socket for coiling the web band.
In another aspect of the invention there is a center beam rail road car having a deck structure carried upon spaced apart rail car trucks and a central beam assembly running along the deck structure and standing upwardly thereof. Bunks for carrying lading are defined to either side of the central beam structure above the deck structure. The central beam structure having an array of posts standing upwardly of the deck structure. There are lading securement apparatus for securing lading in the bunks, the lading securement apparatus including web bands for wrapping about the lading. There is at least one storage enclosure mounted between a pair of the posts. At least one winder mechanism is mounted between a pair of the posts for reeling the bands. A storage enclosure for accommodating wound web bands is mounted between a pair of the posts.
In an additional feature of that aspect of the invention, the winder includes a crank having a shaft about which to wind the web bands, the shaft having an axis oriented longitudinally relative to the rail road car. In another additional feature, the storage enclosure has a movable lid controlling access thereto, and the movable lid has a fitting by which the lid can be secured in place with a lock.
These and other aspects and features of the invention may be better understood with the aid of the accompanying illustrative drawings.
a shows an isometric, general arrangement view of a center beam rail road car having a straight-through main deck, according to the present invention;
b shows an isometric, general arrangement view of a dropped deck center beam rail road car with a reduced height top chord without a laterally extending truss, an alternative to the center beam rail road car of
c shows a mid-span cross-section of the dropped deck center beam rail road car of
d shows an isometric, general arrangement view of a center beam rail road car having a straight-through main deck and a reduced height top chord, another alternative to the center beam rail road car of
a shows section ‘3a-3a’ of the car of
b shows section ‘3b-3b’ of the car of
a shows an isometric view of a storage box and co-operating crank for suitable for use with the center beam rail road car of
b shows a side view of the storage box of
c shows an end view of the storage box of
a shows a view of the storage box of
b shows a side view of the installation of
c shows a top view of the installation of
a shows a view similar to
b shows the storage box of
c shows the storage box of
d shows the storage box of
e shows the storage box of
f shows the storage box of
a shows an alternate storage box to that of
b shows the storage box of
c shows an alternate arrangement showing a movable crank holder and fixed storage box;
d shows the movable crank holder of
a shows an array of double reel storage boxes as an alternative to the installation of
b shows a top view of the installation of
c shows a side view of the installation of
a shows an alternate winding and storage apparatus installation to that of
b shows a side view of the apparatus of
c shows a side view of the apparatus of
d shows a top view of the apparatus of
a shows an isometric view of a winding apparatus for the center beam rail road car of
b shows an end view of the winding apparatus of
c shows a side view of the winding apparatus of
a shows an isometric view of a web band storage box for the center beam rail road car of
b shows a side view of the storage box of
c shows a top view of the storage box of
d shows a sectional view of the storage box of
a shows an isometric view of an alternate web band storage box to that of
b shows a section view ‘12b-12b’ of the storage box of
c shows a section view ‘12c-12c’ of the storage box of
The description which follows, and the embodiments described therein, are provided by way of illustration of an example, or examples of particular embodiments of the principles of the present invention. These examples are provided for the purposes of explanation, and not of limitation, of those principles and of the invention. In the description which follows, like parts are marked throughout the specification and the drawings with the same respective reference numerals. The drawings are not necessarily to scale and in some instances proportions may have been exaggerated in order more clearly to depict certain features of the invention.
In terms of general orientation and directional nomenclature, for each of the rail road cars described herein, the longitudinal direction is defined as being coincident with the rolling direction of the car, or car unit, when located on tangent (that is, straight) track. In the case of a car having a center sill, whether a through center sill or stub sill, the longitudinal direction is parallel to the center sill, and parallel to the side sills, if any. Unless otherwise noted, vertical, or upward and downward, are terms that use top of rail TOR as a datum. The term lateral, or laterally outboard, refers to a distance or orientation extending cross-wise relative to the longitudinal centerline of the railroad car, or car unit, indicated as CL—Rail Car. The term “longitudinally inboard”, or “longitudinally outboard” is a distance or orientation relative to a mid-span lateral section of the car, or car unit.
A center beam railroad car is indicated in
The structure of a center beam car, such as in
In detail, as shown in
At either end of car 20 there are vertically upstanding fore and aft end bulkheads 50 and 52 which extend from side to side, perpendicular to the central longitudinal plane 26 of car 20. Running the full length of car 20 between end bulkheads 50 and 52 is an array 54 of upright posts 56, 57. Array 54 is reinforced by diagonal braces 58, 59. As also shown in
Each of posts 56 has a central web 74 that lies in a vertical plane perpendicular to the plane 26 of car 20. Web 74 is tapered from a wide bottom adjacent main center sill 36 to a narrow top. The wide bottom portion is about 13½ inches wide, and at the top portion the inward taper is such as to yield a 6 inch width of section at the junction of top chord assembly 62 and top truss 64. At the outboard extremities of web 74 there are left and right hand flanges 76 and 78 that each lie in a longitudinal plane inclined at an angle α defined (from the vertical) by the slope of the taper of web 74. In the embodiment of
A horizontal cross-section of post 56 may generally have an H-shape, with web 74 extending laterally between flanges 76 and 78. Post 57, by contrast, although tapered in a similar manner to post 56, has a horizontal cross-section of a U-shaped channel, with its web being the back of the U, and the flanges being a pair of legs extending away from the back. Each diagonal member 58 (or 59) has a first end rooted at a lower lug 86 welded at the juncture of the base of one of the posts 56 (or 57) and main center sill 36, and a second diagonal end rooted in an upper lug 88 at the juncture of another adjacent post 56 (or 57) and top chord assembly 62. Midway along its length, diagonal beam 58 (or 59) passes through a post 57 intermediate the posts 56 (or 57) to which diagonal 58 (or 59) is mounted. It is intended that the respective flanges of the various posts 56 and 57 lie in the same planes on either side of the central plane 26 of car 20 to present an aligned set of bearing surfaces against which lading can be placed. The incline of flanges 76 and 78 is such that they lie at roughly a right angle to the inward taper of risers 48 so that generally square or rectangular bundles can be stacked neatly in the clearance opening of the bunk defined between the underside of the top truss 64 and risers 48. In the embodiment of
Webbing bands, identified as straps 92, (
Straps 92 are preferably web bands made of a woven synthetic fibre, such as NYLON or polyester or PVC, with a fastening attachment anchor fitting at one end. The web bands may be typically 4″ wide. The anchor fitting can be a hook, or ring, or loop to which the web material itself is sewn, such as by folding an end over a loop or bar, and then sewing the band back on itself. It the embodiment of
When the car is unloaded, as shown in
Apparatus 100 includes a reeling mechanism 102 (
Box 108 has a thickness, or small dimension ‘L’ corresponding to the width of the web bands, although somewhat wider, such as about 7″ to allow for moderately uneven winding of a narrower reel, such as a reel formed of a 4 inch web, and to allow for easier removal by hand. Seen in the longitudinal direction looking along the side sill, as in
As can be seen, top wall 110, back wall 116 and bottom wall 118 are welded about three sides or margins of the periphery of side walls 112, 114. The fourth side, or portion, of the periphery of side walls 112, 114 is left open, except for a lip 120 formed upwardly at the distal end of bottom wall 118. The opening defined between the fourth, unboxed portion of the periphery of side walls 112, 114, lip 120, and the distal edge, or margin of top wall 110 is of a size to receive a reeled web band roughly 9 inches in diameter.
A sleeve 122 is welded along the outer surface of back wall 116 adjacent to the junction of back wall 116 with top wall 110, and forms a pivot fitting on a shaft 124 (
The long margins of top wall 110 each have a lip 131 extending beyond side walls 112, 114, respectively to overlap the respective upper faces of bars 130, 132. As such, bars 130, 132 also act as stops, or abutments limiting the travel of box 108 into the stored position. A retention fitting for maintaining box 108 in an open, or raised position is also provided. That is, a stay or prop in the nature of a pivotally mounted catch 128 is mounted to the underside of bottom wall 118 near lip 120. Catch 128 has a hook shape, with one end being identified as a bent hook 129. Catch 128 is pivotally mounted to box 108, and the long depending end 133 being left to dangle, the long depending end having a piece of round stock 135 (
A clevis, or yoke, is formed by a pair of first and second bores 134, 136 let through each of side walls 112, 114 near the fourth portion of their respective peripheral margins. Bores 134 and 136 are provided to give a socket for web reeling device 102, in the nature of a winder, or crank 140. Crank 140 has a shaft 142 engageable with bores 134, 136; an arm, 144 extending radially from one end of shaft 142; and a throw, or handle, 146 by which crank 140 can be grasped and a torque imposed through arm 144 to turn shaft 142. Shaft 142 is a slotted shaft, slot 148 being of a size to accept radial threading by an end of a web band, namely strap 92. As such, when box 108 is in the raised, or operative position, crank 140 can be used to reel up strap 92 in a loose roll, or coil. Then, turning crank 140 backwards slightly, (in the direction opposite to the winding direction), may tend to loosen strap 92 in the center of the coil thus formed, thereby facilitating axial disengagement. Axially withdrawing shaft 142 out of the socket provided by bores 134, 136, may then tend to release the formed coil, or roll, permitting it to fall into the storage space defined within the walls of box 108.
Box 108 also has a crank storage fitting in the nature of an intermediate internal plate, or web 150 (
The sequence of operation of the lading securement storage apparatus is shown in
Other arrangements of box positioning or retaining devices can be used than the hooked stay of box 108. In the further alternative shown in
The storage box may not necessarily be movable between the raised and lowered, stored and operative, positions as shown for box 108 in
It is also not necessary for the boxes to be spread along the bays at the pitches of successive cross ties. It may be found to be more convenient to mount a larger number of boxes in a single location, and to wind reels, or spools, of web bands in one place. Such an arrangement is show in the further alternative of
In the alternative embodiment of
In greater detail, stanchion 212 includes a tapered upstanding web 220 (
In the closed position crank 210 locates within an enclosed spaced defined by a stationary storage box structure 240 (
In a still further alternative, shown in
In the case of car 320, the central web assembly is indicated generally as 330 and runs in the longitudinal direction (that is, the rolling direction of the car), the top flange function is served by a top chord 332, and the lower flange function is performed by an assembly that includes a lateral support structure 334, and a main center sill 336. Lateral support structure 334 generally includes deck structure 326, and its outboard left and right hand side sills 342 and 344 (
As with car 20, described above, aside from fittings such as hand grabs, ladders, brake fittings, and couplers, the structure of car 320 is symmetrical about the longitudinal plane of symmetry 324, and also about the transverse plane of symmetry 331 at the mid-length station of the car. In that light, a structural description of one half of the car will also serve to describe the other half. The features of car 320 thus enumerated are basic structural features of a center beam car having a depressed center deck.
In detail, main center sill 336 is a fabricated steel box beam that extends longitudinally along centerline 325 of car 320 throughout its length, having couplers 338 mounted at either end. Cross bearers 340 and cross-ties 341 extend outwardly from center sill 336 to terminate at left and right hand side sills 342, 344 that also run the length of the car. These cross bearers 340 and cross ties 341 extend laterally outward from center till 336 on approximately 4 ft centers. Deck sheeting, identified as decking 326, is mounted to extend between cross-bearers 340 and cross-ties 341, providing a shear connection between opposing side sills when side loads are imposed on the car, as in cornering. The combined structure of center sill 336, cross-bearers 340, cross-ties 341, side sills 342, 344 and decking 326 provides a wide, lading support assembly extending laterally outward from the longitudinal centerline 325 of car 320.
As noted above, deck structure 326 has a first end portion, namely end deck portion 327, a second end deck portion, namely end deck portion 328, and a medial deck portion 329. At each of the transitions from either end deck portion 327 or 328 to medial deck portion 329 there is a knee, indicated respectively as 347 or 349. Not only is deck structure 326 stepped in this manner, but so too are side sills 342 and 344, each having first and second end members, or end portions, 343, and a medial member, or medial side sill portion 345.
At either end of car 320 there are vertically upstanding fore and aft end bulkheads 350 and 352 which extend from side to side, perpendicular to the central longitudinal plane 324 of car 320. Running the full length of car 320 between end bulkheads 350 and 352 is an array 354 of upright posts 355, 356, 357. Array 354 is reinforced by diagonal braces 363, 364, 367, 368, 374 that provide a shear path for vertical loads. The array 354 of posts 355, 356, 357 is surmounted by an upper beam, namely top chord 332 to form a central beam assembly standing upwardly of the deck structure. In this central beam structure, array 354 and the diagonal braces co-operate to provide a shear transfer web-like structure between center sill 336 and top chord 332. As shown, end bulkheads 350 and 352 are taller than the central beam assembly. That is, taken relative to top of rail, the height of the top of the bulkheads is greater than the height of the upper extremity of top chord 332. As such, car 320 is a dropped deck center beam rail road car having a reduced height top chord without laterally extending truss wings.
The respective end deck portions 327, 328 are offset upwardly from the lading supporting structure of medial deck portion 329 by a height increment shown as δ (
Straps 386 (
The height of the knee 347 and 349, preferably roughly 33 to 34 inches, may tend to be a bit large for a person to ascend comfortably as a single step. For the purpose of facilitating end deck access, a vertically extending, transversely oriented intermediate bulkhead sheet 380 has a perforation formed in it at the height of medial cross-member 376 to define a foothold, rung, or step, 381 (on
Center beam car 320 has an array of center beam web posts, indicated generally as 354 in the context of
As shown in
The medial portion 329 of the deck structure of dropped deck center beam car 320 may tend to be accessible from track side by climbing without necessarily requiring the aid of a ladder or steps from the ground, thus tending to give access to storage boxes 424, 426, 428 and 430 mounted along the centerline of car 320 above the top cap of main center sill 336. A pair of first and second fore-and-aft cranks 432, 434 are mounted in fixed positions in the respective bays lying fore-and aft of storage boxes 424, 426, 428 and 430. Also, in this instance each storage box is capable of holding several rolled coils, and the storage boxes are not themselves provided with holes for engaging a winding mechanism. Rather, they have only movable lids, 450 (
In greater detail, the strap winding mechanism of car 320 is as shown in
As shown in
In another alternative,
In the foregoing examples, car 20 has a deck having tapered risers, posts inclined to match the taper to form a right angle, and an overhead top truss with laterally extending wings. Car 320, by contrast, has a dropped deck configuration, has planar horizontal decks, posts with parallel vertical sides, a top chord that is located at a reduced height relative to the end bulkheads, and no top truss. For the purpose of avoiding redundant description, it will be understood that these features can be combined in other configurations. That is, a straight-through flat deck, as in car 20, can lie in a horizontal plane, rather than having tapered risers, and can have straight, parallel sided vertical posts rather than tapered posts. Further, a straight through flat deck car need not have a top truss, and need not have a full height beam, but rather can have a reduced height beam as shown in rail car 320. An example of such a car, identified as 400, is shown in
While it is preferred that center beam cars having straight-through decks corresponding to the level of the main sill top cap (typically about 41″ above top of rail) have their reeling and storage apparatus adjacent to the side sill, it would also be possible to mount winding mechanisms, such as the fixed position cranks of car 320, between the posts of car 20, possibly mounted to a longitudinal stringer set at a height convenient for winding when standing on the deck, (that is to say, within 6 feet of deck level, and preferably within 4 feet of deck level, generally waist high or lower relative to an adult of average height) with storage boxes located between the posts in the manner of car 320. Further, while reeling and storage apparatus as shown are most advantageous for center beam cars, they can also be used for other types of flat car, or other types of bulkhead flat car.
It should also be noted that while, for example, boxes 108, 190, 424 to 430, and 460 have side sheets and peripheral wall portions formed from monolithic sheets, a storage enclosure need not have full sheets, but could have the form of a cage, or framework, of open bars. It is advantageous to use larger panels as this may tend to provide some protection to the coils of webbing from stones and other debris cast up during movement of the railcars.
It may also be noted that in each of the embodiments shown and described herein the storage box, or enclosure, is mounted in a position clear of the envelope in which the lading is carried. That is, whether the car has angled risers and tapered posts, or a flat deck and vertical posts with no taper, the storage enclosure lies clear of the bunks defined by the vertical lading bunk interface (such as the plane of the post flanges) and the horizontal, or lower lading bunk interface (be it defined by a flat continuous deck or by the upper surfaces of an array of risers). In some instances, as described and illustrated above, the storage enclosure may be mounted between the posts of the center beam structure, and in other cases the storage enclosure may be mounted in the deck structure adjacent to the side sills.
Various embodiments of the invention have now been described in detail. Since changes in and or additions to the above-described best mode may be made without departing from the nature, spirit or scope of the invention, the invention is not to be limited to those details, but only by the appended claims.
Number | Date | Country | Kind |
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2,351,668 | Jun 2001 | CA | national |
This application is a continuation of Ser. No. 10/437,613, filed May 14, 2003, now U.S. Pat. No. 6,796,758 which is a divisional of U.S. patent application Ser. No. 09/893,368 filed Jun. 27, 2001, now U.S. Pat. No. 6,612,793, which applications are hereby incorporated by reference herein.
Number | Date | Country | |
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Parent | 09893368 | Jun 2001 | US |
Child | 10437613 | May 2003 | US |
Number | Date | Country | |
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Parent | 10437613 | May 2003 | US |
Child | 10953860 | Sep 2004 | US |