US3088776A - Railway hopper cars - Google Patents

Railway hopper cars Download PDF

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Publication number
US3088776A
US3088776A US85912A US8591261A US3088776A US 3088776 A US3088776 A US 3088776A US 85912 A US85912 A US 85912A US 8591261 A US8591261 A US 8591261A US 3088776 A US3088776 A US 3088776A
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United States
Prior art keywords
casing
tube
granular material
valve port
respect
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 - Lifetime
Application number
US85912A
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English (en)
Inventor
Edmund R Aller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General American Transportation Corp
Original Assignee
General American Transportation Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR1310087D priority Critical patent/FR1310087A/fr
Priority to NL120788D priority patent/NL120788C/xx
Priority to NL272287D priority patent/NL272287A/xx
Application filed by General American Transportation Corp filed Critical General American Transportation Corp
Priority to US85912A priority patent/US3088776A/en
Priority to US140936A priority patent/US3088777A/en
Priority to ES271826A priority patent/ES271826A1/es
Priority to LU40801D priority patent/LU40801A1/xx
Priority to DEG33587A priority patent/DE1255037B/de
Priority to DK468661AA priority patent/DK105165C/da
Priority to CH1372161A priority patent/CH417474A/de
Priority to AT925861A priority patent/AT244381B/de
Priority to GB43675/61A priority patent/GB923935A/en
Priority to BE611197A priority patent/BE611197A/fr
Application granted granted Critical
Publication of US3088776A publication Critical patent/US3088776A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4675—Gates or sluices, e.g. rotary wheels with flexible wall parts, e.g. peristaltic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D5/00—Tank wagons for carrying fluent materials
    • B61D5/002—Tank wagons for carrying fluent materials for particulate or powder materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D5/00—Tank wagons for carrying fluent materials
    • B61D5/002—Tank wagons for carrying fluent materials for particulate or powder materials
    • B61D5/004—Tank wagons for carrying fluent materials for particulate or powder materials with loading and unloading means using fluids or vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/02—Hopper cars with discharge openings in the bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B61D7/24—Opening or closing means
    • B61D7/28—Opening or closing means hydraulic or pneumatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/548—Large containers characterised by means facilitating filling or emptying by pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24—Gas suction systems

Definitions

  • the present invention relates to apparatus for storing granular material, and more particularly to railway hopper cars for storing and transporting such granular material.
  • finely divided or granular material such for example, as flour, malt, plastic resin beads, or the like
  • Another object of the invention is to provide in a railway hopper car including a body provided with structure defining a plurality of storage hoppers therein, an improved arrangement of a plurality of outlet nozzles respectively carried by the plurality of storage hoppers, and a single conduit system commonly connected to the plurality of outlet nozzles and terminating in a pair of fixtures respectively disposed at the opposite sides of the body, wherein each of the outlet nozzles incorporates automatic valve mechanism that is normally biased into its open position so long as there is granular material to be unloaded in the associated one of the storage hoppers and that is actuated into its closed position in response to suction in the associated conduit system after all of the granular material in the associated one of the storage hoppers has been unloaded therefrom, and wherein each one of the fixtures mentioned may be selectively connected to a suction conduit for the unloading purpose, so that the granular material stored in each of the storage hoppers may be unloaded from the one fixture, and wherein the other of the fixtures mentioned may be selectively controlled
  • a further object of the invention is to provide a railway hopper car of the character described, wherein each of the outlet nozzles includes a casing provided with a bottom discharge opening therein and an associated bottom cover removably carried by the associated casing so that the granular material may be unloaded by gravity from the associated one of the storage hoppers through the casing of the outlet nozzle thereof when the bottom cover is removed from covering relation with respect to the bottom discharge opening therein.
  • a further object of the invention is to provide in apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet, an improved nozzle outlet comprising a casing carried by the storage hopper and disposed below the bottom outlet and communicating therewith, a suction tube extending through the lower portion of the casing for unloading the granular material from the storage hopper through the casing, the intermediate section of the tube being disposed within the casing and having a valve port provided in the bottom thereof, a valve element arranged in the bottom of the casing below the valve port and cooperating therewith, whereby the interior of the tube is in communication with the lower portion of the casing when the valve element occupies its open position with respect to the valve port and the interior of the tube is cut-01f from communication with the lower portion of the casing when the valve element occupies its closed position with respect to the valve port, and actuating means for selectively Operating the valve element between its open and closed positions with respect to the valve port, wherein the valve element is biased into its open position with respect to
  • a still further object of the invention is to provide in apparatus of the character described, an improved outlet nozzle, wherein the actuating means for selectively operating the valve between its open and closed positions with respect to the associated valve port essentially comprises a diaphragm disposed in the bottom of the casing below the valve element and directly secured thereto, wherein the upper surface of the diaphragm and the valve element are subject to the pressure in the lower portion of the casing and the lower surface of the diaphragm is subject to atmospheric pressure, and wherein the valve element and the upper surface of the diaphragm are also subject to the weight of granular material in the casing so long as there is granular material in the storage hopper, whereby the diaphragm and the valve element are moved together from a normal lower position into an actuated upper position in response to suction in the lower portion of the casing after all of the granular material in the storage hopper has been unloaded therefrom through the casing into the tube, and wherein the normal lower position of the valve element constitutes an open
  • a still further object of the invention is to provide in a railway hopper car, an improved and simplified pneumatic system for unloading granular material contained in the plurality of storage hoppers defined in the body of the car, utilizing a single fixture selectively connectible to an associated suction conduit, wherein each of the plurality of storage hoppers is normally connected to the single fixture mentioned for the purpose of efiecting the unloading of the granular material stored therein, and wherein each of the plurality of storage hoppers is automatically disconnected from the single fixture mentioned in response to the unloading therefrom of the granular material stored therein.
  • FIGURE 1 is a side ele-vational view, partly broken away, of a railway hopper car embodying the present invention
  • FIG. 2 is a plan view, partly broken away, of the railway hopper car shown in FIG. 1;
  • FIG. 3 is an enlarged sectional view, partly broken away, of the railway hopper car, taken in the direction of the arrows along the offset line 33 in FIG. 2;
  • FIG. 4 is a greatly enlarged fragmentary plan view of a one of the outlet nozzles incorporated in the railway hopper car, as shown in FIGS. 1 to 3, inclusive;
  • FIG. 5 is a greatly enlarged longitudinal sectional view of the outlet nozzle, taken in the direction of the arrows along the line 5-5 in FIG. 4;
  • FIG. '6 is a greatly enlarged lateral sectional view of the outlet nozzle, taken in the direction of the arrows along the line 6--6 in FIG. 4.
  • the railway hopper car 10 there illustrated and embodying the features of the present invention, is especially adapted for storage and transportation of finely divided or granular materials, such for example, (as rflour, malt, plastic resin beads, or the like; and the car 10 comprises a rigid underframe, including a longitudinally extending center sill 11; which underfrarne is supported adjacent to the opposite ends thereof by a pair of trucks 12 carrying track wheels 13' cooperating with an associated railway track, indicated at 14.
  • a rigid underframe including a longitudinally extending center sill 11; which underfrarne is supported adjacent to the opposite ends thereof by a pair of trucks 12 carrying track wheels 13' cooperating with an associated railway track, indicated at 14.
  • the underframe carries a body 20, including a pair of longitudinally extending and laterally spaced-apart side walls 21 and 22, a pair of laterally extending and longitudinally spaced-apart end walls 23, and a roof 24.
  • the three storage hoppers 41, 42 and 43 are disposed in longitudinal spaced-apart relation on the side of the car 10 adjacent to the side wall 2-1, while the three storage hoppers 44, 45 and 46 are disposed in longitudinal spaced-apart relation on the side of the car 10 adjacent to the side wall 22.
  • the two storage hoppers 41 and 44 are commonly defined by the side walls 21 and 22 and by the dividing walls 25 and 27 and are separated laterally from each other at the lower portions thereof by the longitudinally extending dividing bridge 31 disposed substantially centrally therebetween;
  • the two storage hoppers 42 and 45 are commonly defined by the side Walls 21 and 22 and by the dividing walls 27 and 28 and are separated laterally from each other at the lower portions thereof by the longitudinally extending dividing bridge 32 disposed substantially centrally therebetween;
  • the two storage hoppers 43 and 46 are commonly defined by the side walls 21 and 22 and by the dividing walls 26 and 28 and are separated laterally from each other at the lower portions thereof by the longitudinally extending dividing bridge 33 disposed substantially centrally therebetween.
  • Each of the storage hoppers 41 to 46, inclusive, is provided with individual bottom wall structure having the general configuration of an inverted frusto pyramid and terminating in a bottom discharge outlet, each carrying a surrounding substantially rectangular collar.
  • the downwardly tapered bottom wall structure of the individual storage hopper 41 terminates in the individual bottom discharge outlet 51 that is provided with the individual surrounding substantially rectangular collar 61
  • the downwardly tapered bottom wall structure of the individual storage hopper 46 terminates in the individual bottom discharge outlet 56 that is provided with the individual surrounding substantially rectangular collar 66.
  • the bottom discharge outlets 51, etc., of the individual storage hoppers 41, etc. are disposed in a substantially horizontal common lower plane that is located well below the center sill 11 of the underframe of the car 10, as shown in FIG. 3; which lower plane is positioned appropriately above the associated railway track 14, as established by the wheels 13 of the trucks 12, for the usual road bed clearance purpose, as indicated in FIG, 1,
  • the dividing bridges 31, 32 are disposed in a substantially horizontal common lower plane that is located well below the center sill 11 of the underframe of the car 10, as shown in FIG. 3; which lower plane is positioned appropriately above the associated railway track 14, as established by the wheels 13 of the trucks 12, for the usual road bed clearance purpose, as indicated in FIG, 1,
  • the dividing bridges 31, 32 are disposed in a substantially horizontal common lower plane that is located well below the center sill 11 of the underframe of the car 10, as shown in FIG. 3; which lower plane is positioned appropriately above the associated railway track 14, as established by the wheels 13 of the trucks 12, for the usual road bed clearance purpose, as indicated in
  • the three individual storage hoppers 41, 42 and 43- disposed on the side of the car '10 adjacent to the side wall 21 are respectively provided with three downwardly tapered bottom wall structures that are arranged between the center sill 11 and the adjacent side wall 21 of the car 10, while the three individual storage hoppers, 44, 45 and 46 disposed on the side of the car "10 adjacent to the side wall 22 are respectively provided with three downwardly tapered bottom wall structures that are arranged between the center sill 11 and the adjacent side wall 22 of the car 10.
  • the roof 24 carries a plurality of longitudinally spacedapart filling hatches 67 on opposite sides thereof that respectively communicate with the individual ones of the storage hopper pairs 41, 44, 42, 45 and 43, 46; and each of the filling hatches 67 is provided with an individually associated removable hatch cover 68 normally arranged in sealing relation therewith.
  • the body 28 of the car 10 is provided with six outlet nozzles 71 to 76, inclusive, respectively carried by the six collars 61 to 66, inclusive, and respectively communicating with the six bottom discharge outlets 51 to 56, inclusive, respectively provided in the six storage hoppers 41 to 46, inclusive.
  • the six outlet nozzles 71 to 76, inclusive are of identical construction and arrangement; whereby only the outlet nozzle 71 has been shown in detail in FIGS. 4 to 6, inclusive.
  • the outlet nozzle 71 comprises a hollow casing 81 terminating in an open top 82 that is surrounded by an outwardly directed substantially rectangular collar 83 that is adapted to be removably secured in place below the substantially rectangular collar 61 carried by the bottom wall structure of the storage hopper 41 disposed in surrounding relation with respect to the bottom discharge outlet 51 thereinto.
  • the collar 83 is arranged immediately below the collar 6-1 with a sealing gasket 84 therebetween and is secured in place by a plurality of bolts 85 projecting through aligned openings respectively formed in the collars 61 and 83 and. in the gasket 84 and respectively carrying cooperating nuts 86.
  • the casing 81 terminates in a bottom discharge opening 87 disposed directly below the top opening 8 2; which bottom discharge opening 87 is normally closed by an associated removable bottom cover 88.
  • the cover 88 is normally retained in place by a pair of threaded studs 89 respectively carrying a pair of cooperating nuts 90.
  • the inner ends of the studs 39 are respectively received in a cooperating pair of threaded openings provided in the bottom of the casing 81 and the intermediate portions of the studs 89 respectively project through cooperating openings provided in the bottom cover 88, and the outer ends of the threaded studs 89 respectively receive the nuts 90.
  • the outlet nozzle 71 comprises a suction tube 91 extending longitudinally therethrough and formed integrally with the casing 8 1; and preferably the casing 81 and the suction tube 91 comprise an integral metal casting formed of a suitable aluminum alloy.
  • the suction tube 91 is disposed below the rectangular collar 83 carried by the top of the casing 81 and the opposite ends 92 thereof extend well outwardly beyond the collar 83. Both of the ends 92 are open, and one of them is adapted to serve as an air inlet opening into the suction tube 91, and the other of them is adapted to serve as an air outlet opening from the suction tube 91.
  • the intermediate section of the suction tube 91 is disposed [within the casing 81 and carries at the bottom thereof a communicating downwardly directed hood 93 terminating at the bottom thereof in a valve port 94 positioned directly above the bottom discharge opening 87 into the casing 81.
  • valve element 35 is arranged below and in cooperating relation with the valve port 94; which valve element 95 comprises a substantially rectangular metal plate-like element that is directly secured to the upper surface of a cooperating flexible diaphragm 96 that is arranged between the bottom of the casing 91 and the bottom cover 88 in its normal covering position with respect to the bottom discharge opening 87.
  • the diaphragm 96 may be formed of a suitable sheet of rubber, or the like, and is arranged in covering rela tion with respect to the bottom discharge opening 87, the marginal portion of the diaphragm 96 being clamped in place by the bottom cover 88 upon the bottom of the casing 81 in surrounding relation with the bottom discharge opening 87.
  • the diaphragm 96 cooperates with the bottom cover 88 to define a vent chamber 97 therebetween that communicates with the atmosphere through a cooperating vent opening 98 formed in the central portion of the bottom cover 88.
  • the interior of the storage hopper 41 is in communication through the bottom discharge outlet 51 with the interior of the casing 81 of the outlet nozzle 71.
  • the interior of the suction tube 91 communicates with the interior of the hood 93; and the interior of the hood 93 selectively communicates with the interior of the casing 81 through the valve port 94 depending upon the position of the valve element 95. More particularly, the valve element 95 occupies a normal lower open position with respect to the valve port 94 when the diaphragm 96 occupies its normal lower position, as illustrated in FIGS. 5 and 6.
  • valve element 95 occupies an operated upper closed position with respect to the valve port 94, as indicated in dotted lines in FIG. 5, when the diaphragm 96 occupies its actuated upper position, also as illustrated in FIGS. 5 and 6.
  • the valve element 95 occupies its open position with respect to the valve port 95, the bottom of the hood 93 is in open communication with the lower portion of the casing 81; and when the valve element 95 occupies its closed position with respect to the valve port 94, the communication between the bottom of the hood 93 and the interior of the casing 81 is cut-off or closed.
  • the storage hopper 41 contains granular material
  • the same falls through the bottom discharge outlet 51 into the casing 81 and accumulates upon the upper surfaces of the valve element 95 and the diaphragm 96; whereby the valve element 95 and the diaphragm 96 are subject to the weight of granular material in the casing 81 so long as there is granular material in the storage hopper 41, thereby to bias and to maintain the valve element 95 in its open position with respect to the valve port 94.
  • the granular material from the storage hopper 41 is unloaded via the casing 81 of the outlet nozzle 71 through the suction tube 91, the granular material proceeding from the casing 81 through the valve port 94, with the valve element 95 in its open position, and thence through the hood 93 into the suction tube 9 1.
  • suction is maintained in one end 92 of the suction tube 91 and conveying air is supplied at the other end 92 of the suction tube 91.
  • the dififerential pressure exerted upon the diaphragm 96 causes the same to move from its normal lower position into its actuated upper position, so that the valve element is moved from its lower open position with respect to the valve port 94 into its upper closed position with respect to the valve port 94.
  • valve element 95 in response to suction in the suction tube 91 and the consequent suction in the lower portion of the casing 81 after all of the granular material in the storage hopper 41 has been unloaded therefrom, the valve element 95 is automatically operated by the diaphragm 96 from its open position into its closed position with respect to the valve port 94, whereby the communication between the interior of the suction tube 91 and the interior of the casing 81 is cut-off or closed.
  • the granular material in the storage hopper 41 may be directly unloaded by gravity through the bottom discharge opening 87 in the casing 81 by the removal of the bottom cover 88 from its normal closed position with respect to the bottom discharge outlet 87. More particularly, the bottom cover 88 may be removed from covering relation With respect to the bottom discharge opening 87 by removal of one of the nuts 90 from the associated one of the threaded studs 89 and by loosening of the other of the nuts 90 with respect to the associated other threaded stud 89, the bottom 88 being rotated about the retaining one of the threaded studs 89 from its covering position with respect to the bottom discharge opening 87.
  • this gravity unloading of the storage hopper 41 through the casing 81 of the outlet nozzle 71, with the bottom cover 88 in its open position, is altogether independent of the pneumatic unloading thereof utilizing the suction tube 91 in the manner previously explained.
  • the crest of the intermediate portion of the suction tube 91 extending longitudinally through the easing 81 of the outlet nozzle 71 is provided with a general pyramidal configuration in lateral section, as indicated at 91a, so as to facilitate the downward slide of the granular material from the storage hopper 41 through the casing 81 and regardless of whether pneumatic unloading or gravity unloading of the granular material through the outlet nozzle 71 is employed.
  • the tapered bottom structures of the storage hoppers 41 to 46, inclusive are reinforced by foot structures 101 and 102 respectively carried by the lower ends of the dividing walls 27 and 28; which foot structures are supported directly upon the upper surface of the center sill 11.
  • the tapered bottom structures of the storage hoppers 41 to 46, inclusive are reinforced by a plurality of substantially triangular gusset plates 103 that are secured to the adjacent sides of the center sill 1 1, as best shown in FIG. 3.
  • the body 20 carries a first laterally extending tubular fixture disposed adjacent to the side wall 21 and a second laterally extending tubular fixture disposed adjacent to the side wall 22.
  • the tubular fixture 110 is located below the tapered bottom structure of the storage hopper 42 adjacent to the dividing wall 27, and the tubular fixture 120 is located below the tapered bottom structure of the storage hopper 45 adjacent to the dividing wall 28; whereby the two tubular fixtures 110 and 128 are located in an upper substantially horizontal common plane disposed well above the lower plane of the bottom discharge outlets 51 to 56, inclusive, of the storage hoppers 41 to 46, inclusive, as best shown in FIG. 3.
  • the outer end of the tubular fixture 1 10 provides an air outlet opening 111 communicating therewith and terminates in a box 112 arranged in the side wall 21; which box 112 carries a closure member in the form of a hinged cover 113 selectively cooperating with the air outlet opening 111 and readily accessible from the exterior of the car 10 adjacent to the side Wall 21.
  • the outer end of the tubular fixture 120 provides an air outlet opening 121 communicating therewith and terminates in a box 122 arranged in the side wall 22; which box 122 carries a closure member in the form of a hinged cover 123 selectively cooperating with the air outlet opening 121 and readily accessible from the exterior of the car 10 adjacent the side wall 22.
  • the inner end of the tubular fixture 110 provides an air inlet opening 114 communicating therewith, and cooperates with an associated air inlet member 115 that is selectively operative into open and closed positionswith respect thereto; which air inlet member 115 is carried by a laterally extending and rotatably mounted control rod 116 projecting through the side wall 22 and terminating in a cooperating manually operable handle 117 disposed exteriorly of the side wall 22 and readily operable from the outside of the car 10.
  • the inner end of the tubular fixture 120 provides an air inlet opening :124 communicating therewith, and coopera-tes with an associated air inlet member 125 that is selectively operative into open and closed positions with respect thereto; which air inlet member 125 is carried by a laterally extending and rotatably mounted control rod 126 projecting through the side wall 21 and terminating in a cooperating manually operable handle 127 disposed exteriorly of the side wall 21 and readily operable from the outside of the car 10.
  • the central portion of the tubular fixture 110 is provided with a pair of communicating tubular arms 118 and 119 extending downwardly and inwardly therefrom and respectively directed toward the opposite end walls 23 of the body 20; and similarly, the central portions of the tubular fixture 120 is provided with a pair of communicating tubular arms 128 and 129 extending downwardly and inwardly therefrom and respectively directed toward the opposite end walls 23 of the body 20.
  • the body 20 carries a conduit system including two branches extending in parallel relation with each other between the tubular fixtures 11% and 120 a first of these branches connecting in series relation the outlet nozzles 71, 74 and 75, and a second of these branches connecting in series relation the outlet nozzles 72, 73 and 76.
  • the first branch mentioned includes a first section of tubing 131 extending between the arm 118 of the tubular fixture 1'10 and one end of the suction tube of the outlet nozzle 73, a second section of tubing 132 extending between the other end of the suction tube of the outlet nozzle 71 and one end of the suction tube of the outlet nozzle 74, a third section of tubing 133 extending between the other end of the suction tube of the outlet nozzle 74 and one end of the suction tube of the outlet nozzle 75, and a fourth section of tubing 134 extending between the other end of the suction tube of the outlet nozzle 75 and the arm 129 of the tubular fixture 120.
  • the second branch mentioned includes a first section of tubing 141 extending between the arm 128 of the tubular fixture 120 and one end of the suction tube of the outlet nozzle 76, a second section of tubing 142 extending between the other end of the suction tube of the outlet nozzle 7 6 and one end of the suction tube of the outlet nozzle 73, a third section of tubing 143 extending between the other end of the suction tube of the outlet nozzle 73 and one end of the suction tube of the outlet nozzle 72, and a fourth section of tubing 144 extending between the other end of the suction tube of the outlet nozzle '72 and the arm 119 of the tubular fixture 110.
  • the two tubular fixtures 110 and 120 may be located somewhat in excess of 4 ft. above the rails of the railway track 14 as established by the trucks 12. Also, the two tubular fixtures 110 and 120 are identical; and the main barrel of the tubular fixture 110 may have an inside diameter of 5", and each of the arms 118 and 119 thereof may have: an inside diameter of 4.
  • the sections of tubing 131, 132, 133', 134, 141, 142, 143 and 144' may be formed of fabric reinforced rubber hose of suitable lengths for the connecting purposes; and the inside diameter of each of the sections of the tubing 131, etc., may be somewhat in excess of 4", so that the outer ends thereof may be readily slipped over the outer ends of the arms 118', etc., and the outer ends of the suction tubes incorporated in the outlet nozzle 71, etc., and suitably secured in place in any suitable manner, not shown.
  • each of the suction tubes incorporated in each of the outlet nozzles 71, etc. may have an inside diameter of 4" corresponding to the inside diameter of each of the arms 118, etc.
  • the various sections of tubing 131, etc. may be appropriately braced with respect to the structural elements of the underfrarne of the car 16 in any suitable manner to prevent undesirable sagging thereof or interference with the normal operative elements of the railway car 10.
  • the two sections of tubing 132 and 142 may be suitably connected to the center sill 11 employing the U-bolts 152 and 153, respectively, and so as to prevent undue and undesirable sagging of these two sections of tubing 132 and 142.
  • each of the outlet nozzles 71, etc. are proportionately related to the diameter of the suction tube 91 thereof, as illustrated (substantially to a related scale) in FIGS. 4 to 6', inclusive, the internal diameter of the suction tube 91 being 4", as previously noted.
  • this unloading may be effected from either side of the car 10, utilizing the appropriate one of the tubular fixtures or 120.
  • the tubular fixture 110 is employed; whereby the closure member 113 carried by the box 112 is operated into its open position with respect to the outlet opening 111 provided in the outer end of the tubular fixture 110; and, of course, the suction conduit, not shown, is connected to the outlet end of the tubular fixture 110 that is adapted detachably to receive the same.
  • the handle 127 disposed on the side of the car adjacent to the side Wall 21 is manipulated so as to operate the air inlet member 125 into its open position with respect to the inlet opening 124 provided at the inner end of the tubular fixture 120, so as to accommodate the admission of conveying air into the tubular fixture 120.
  • the air inlet member 115 is operated from the side of the car adjacent to the side wall 21 slightly into an open position with respect to the air inlet opening 114 provided into the tubular member 110 so as to accommodate the admission of at least a small amount of bleeder air through the air inlet opening 114 into the tubular fixture 110.
  • a suction condition is effected in the tubular fixture 110 and consequently in the two arms 1'18 and 119 thereof.
  • the suction condition in the arm 118 effects the flow of conveying air from the tubular fixture 12th through the first mentioned branch of the conduit system into the tubular fixture 110 via the suction tubes of the three outlet nozzles 75, 74 and 71 in series relation.
  • the suction condition in the arm 119 effects the flow of conveying air from the tubular fixture 121 ⁇ through the second mentioned branch of the conduit system from the tubular fixture 110 via the suction tubes of the three outlet nozzles 7 6, 73 and 72 in series relation.
  • the conveying air is supplied into the tubular fixture via the air inlet opening 124 with the air inlet member 125 in its open position. Also, ordinarily, a small amount of bleeder air is directly supplied into the tubular fixture 110 through the air inlet opening 114 with the air inlet member 115 in its slightly open position.
  • the suction in the first branch of the conduit system elfects unloading of the storage hoppers 41, 44 and 45 through the respec tive bottom discharge outlets '1, 54 and 55 and through the respective outlet nozzles 71, 74 and 75, since the valve element in each of the outlet nozzles 71, etc., occupies its open position at this time, as previously explained.
  • the suction in the second branch of the conduit system effects unloading of the three storage hoppers 42, 43 and 46 through the respective bottom discharge outlets 52, 53 and 56 and through the respective outlet nozzles 72, 73 and 76, since the valve element in each of the outlet nozzles 72, etc., occupies its open position at this time, as previously explained. Accordingly, the six storage hoppers 41 to 46, inclusive, are simultaneously unloaded through the two branches of the conduit system into the tubular fixture 110 and thus into the connected suction conduit.
  • valve element in the associated outlet nozzle 71, etc. When any one of the storage hoppers 41, etc. is completely unloaded, the valve element in the associated outlet nozzle 71, etc., is operated into its closed position with respect to the valve port in the associated suction tube, thereby to cut-off the communication between the empty storage hopper 41, etc., and the associated branch of the conduit system, so that the granular material in the other two of the three storage hoppers 72, etc., connected thereunder may be further unloaded.
  • the suction conduit is disconnected therefrom, and the associated closure member 113 is returned back into its closed position with respect to the air outlet opening '111 into the tubular fixture 110.
  • the handle 127 is manipulated so as to return the air inlet member 125 into its closed position with respect to the air inlet opening 124 into the tubular fixture 120.
  • all of the valve elements incorporated in the outlet nozzles 71 to 76, inclusive are returned back into their normal open positions, in the manner previously explained.
  • all six of the storage hoppers 41 to 46, inclusive may be unloaded in a substantially identical manner from the other side of the car 10 adjacent to the side wall 22 by the utilization of the tubular fixture 120 as the suction fixture and by the utilization of the fixture 110 as the conveying air inlet fixture.
  • the handle 1'17 disposed adjacent to the side Wall 22 is manipulated so as to operate the air inlet member 115 into its open position with respect to the air inlet opening 114 into the tubular fixture 11!]; whereby in this case, the conveying air is supplied through the tubular fixture 110 and thence through the two branches of the conveying systern in the opposite directions thereof and into the tubular fixture 120 that is in this case connected to the suction conduit.
  • the unloading of the six storage hoppers 41 to 46, inclusive proceeds in this case in the same manner as that described above.
  • each of the outlet nozzles '71, etc. is self-regulating with respect to the rate of supply of the granular material from the associated storage hopper 41, etc., into the conveying system and is non-overloading with respect to the supply of the granular material into the conveying system.
  • These actions may be readily understood in conjunction wth the mode of operation of the outlet nozzle 71, assuming that the granular material is being unloaded via the tubular fixture from the three storage hoppers 41, 44 and 45.
  • the flow of the granular material through the suction tube 91 is from the left-hand end 92 thereof toward the righthand end 92 thereof, as shown in FIG. 5.
  • an outlet nozzle of improved construction and arrangement incorporating an automatically operated valve for selectively controlling the communication between the casing thereof and the suction tube thereof in response to respective loaded and unloaded conditions of the connected storage hopper.
  • an improved and simplified combination gravity unloading and pneumatic unloading system wherein each of the plurality of storage hoppers incorporated therein may be individually unloaded on a gravity basis, and wherein each of the plurality of stor age hoppers incorporated therein may be simultaneously unloaded on a pneumatic basis.
  • the pneumatic unloading arrangement when the pneumatic unloading arrangement is employed, all of the storage hoppers may be simultaneously unloaded from either side of the railway car, utilizing the corresponding one of two tubular fixtures respectively disposed on the opposite sides of the car body.
  • each of said outlet nozzles including a casing disposed below the bottom outlet in the associated one of said storage hoppers and communicating therewith, each of said outlet nozzles also including a suction tube extending through the lower portion of the associated casing for unloading the granular material from the associated one of said storage hoppers, the intermediate section of each of said tubes being disposed within the associated casing and having a valve port provided in the bottom thereof and communicating with the lower portion of the associated casing, each of said outlet nozzles further including a valve element arranged in the lower portion of the associated casing and disposed below the valve port in the associated tube and cooperating therewtih, whereby the interior of each of said tubes is in communication with the lower portion of the associated casing when the associated valve element occupies its open position with respect to the associated valve port and the interior
  • each of said outlet nozzles including a casing disposed below the bottom outlet in the associated one of said storage hoppers and communicating therewith, each of said outlet nozzles also including a suction tube extending through the lower portion of the associated casing for unloading the granular material from the associated one of said storage hoppers, the intermediate section of each of said tubes being disposed within the associated casing and having a valve port provided in the bottom thereof and communicating with the lower portion of the associated casing, each of said outlet nozzles further including a valve element arranged in the lower portion of the associated casing and disposed below the valve port in the associated tube and cooperating therewith, whereby the interior of each of said tubes is in communication with the lower portion of the associated casing when the associated valve element occupies its open position with respect to the associated valve port and the interior of each of
  • each of said outlet nozzles including a casing disposed below the bottom outlet in the associated one of said storage hoppers and communicating therewith, each of said outlet nozzles also including a suction tube extending through the lower portion of the associated casing for unloading the granular material from the associated one of said storage hoppers, the intermediate section of each of said tubes being disposed within the associated casing and having a valve port provided in the bottom thereof and communicating with .the lower portion of the associated casing, each of said outlet nozzles further including a valve element arranged in the lower portion of the associated casing and disposed below the valve port in the associated tube and cooperating therewith, whereby the interior of each of said tubes is in communication with the lower portion of the associated casing when the associated valve element occupies its open position with respect to the associated valve port and the interior of
  • a body, structure defining a plurality of storage hoppers in said body and respectively provided with a plurality of bottom discharge outlets, a plurality of outlet nozzles respectively carried by said storage hoppers, each of said outlet nozzles including a casing disposed below the bottom outlet in the associated one of said storage hoppers and communicating therewith, each of said outlet nozzles also including a suction tube extending through the lower portion of the associated casing for unloading the granular material from the associated one of said storage hoppers, the intermediate section of each of said tubes being disposed within the associated casing and having a valve port provided in the bottom thereof and communicating with the lower portion of the associated casing, each of said outlet nozzles further including a valve element arranged in the lower portion of the associated casing and disposed below the valve port in the associated tube and cooperating therewith, whereby the interior of each of said tubes is in communication with the lower portion of the associated casing when the associated valve element occupies its open position with respect
  • a body, structure defining a plurality of storage hoppers in said body and respectively provided with a plurality of bottom discharge outlets, a plurality of outlet nozzles respectively carried by said storage hoppers, each of said outlet nozzles including a casing disposed below the bottom outlet in the associated one of said storage hoppers and communicating therewith, each of said outlet nozzles also including a suction tube extending through the lower portion of the associated casing for unloading the granular material from the associated one of said storage hoppers, the intermediate section of each of said tubes being disposed within the associated casing and having a valve port provided in the bottom thereof and communicating with the lower portion of the associated casing, each of said outlet nozzles further including a valve element arranged in the lower portion of the associated casing and disposed below the valve port in the associated tube and cooperating therewith, whereby the interior of each of said tubes is in communication with the lower portion of the associated casing when the associated valve element occupies its open position with respect
  • each of said suction nozzles further including actuating means for selectively operating the associated valve element between its open and closed positions with respect to the associated valve port
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-off from communication with the lower portion of said casing when said valve element occupies its closed position with respect to said valve port, actuating means for selectively operating said valve element between its open and closed positions with respect
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening there from, the intermediate section of said tube being disposed within said casing and carrying at the bottom thereof a communicating downwardly directed hood terminating in a valve port positioned above the bottom wall of said casing, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-off fromcommunication with the lower portion of said casing when said valve element occupies its closed position with respect to said valve port
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, said casing having a bottom discharge opening therein, a bottom cover removably carried by said casing and selectively cooperating with said bottom discharge opening, whereby the granular material may be unloaded from said storage hopper through said casing when said bottom cover is removed from covering relation with said bottom discharge opening, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing when said bottom cover is in covering relation with said bottom discharge opening, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing'carried by said storage hopper and disposed below said bottom outlet and communicating therewith, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening there-into and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-off from communication with the lower portion of said casing when said valve element occupies its closed position with respect to said valve port, a diaphragm arranged in the lower portion of said casing
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed with in said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperat-- ing therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-01f from communication with.
  • a diaphragm arranged in the bottomfof said casing below said valve element and secured thereto. said diaphragm cooperating with the bottom wall of said casing to define a vent chamber therebelow that is in communication with the atmosphere.
  • valve element and the upper side of said diaphragm are subject to the pressure in the lower portion of said casing and the lower side of said diaphragm is subject to the pressure in said vent chamber, said valve element and the upper side of said diaphragm also being subject to the weight of granular material in said casing so long as there is granular material in said storage hopper, whereby said valve element and said diaphragm are moved together from a normal lower position into an actuated upper position in response to suction in the lower portion of said casing after all of the granular material in said storage hopper has been unloaded therefrom through said easing into said tube, said valve element in its normal lower position occupying its open position with respect to said valve port and said valve element in its actuated upper position occupying its closed position with respect to said valve port, and a fixture communicating with said other end of said tube and adapted to be connected to a suction conduit, whereby conveying air may be supplied through said air inlet opening into said tube and then through said air outlet opening
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, said casing having a bottom opening therein, a bottom cover carried by said casing in covering relation with said bottom opening, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-ofi from communication with the lower portion of said casing when said valve element occupie
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, said casing having a bottom discharge opening therein, a bottom cover removably carried by said casing and selectively cooperating with said bottom discharge opening, whereby the granular material may be unloaded from said storage hopper through said casing when said bottom cover is removed from covering relation with said bottom discharge opening, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing when said bottom cover is in covering relation with said bottom discharge opening, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, said casing having a bottom discharge opening therein, a bottom cover removably carried by said casing and selectively cooperating with said bottom discharge opening, whereby the granular material may be unloaded from said storage hopper through said casing when said bottom cover is removed from covering relation with said bottom discharge opening, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing when said bottom cover is in covering relation with said bottom discharge opening, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-off from communication with the lower portion of said casing when said valve element occupies its closed position with respect to said valve port, means including a diaphragm arranged in the lower portion of said casing
  • apparatus for storing granular material including structure defining a storage hopper provided with a bottom discharge outlet; an outlet nozzle comprising a casing carried by said storage hopper and disposed below said bottom outlet and communicating therewith, said casing having a bottom opening therein, a bottom cover carried by said casing in covering relation with said bottom opening, a suction tube extending through the lower portion of said casing for unloading the granular material from said storage hopper through said casing, one end of said tube providing an air inlet opening thereinto and the other end of said tube providing an air outlet opening therefrom, the intermediate section of said tube being disposed within said casing and having a valve port provided in the bottom thereof, a valve element arranged in the lower portion of said casing below said valve port and cooperating therewith, whereby the interior of said tube is in communication with the lower portion of said casing when said valve element occupies its open position with respect to said valve port and the interior of said tube is cut-off from communication with the lower portion of said casing when said valve element occupies its

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Air Transport Of Granular Materials (AREA)
US85912A 1961-01-30 1961-01-30 Railway hopper cars Expired - Lifetime US3088776A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
FR1310087D FR1310087A (fr) 1961-01-30
NL120788D NL120788C (fr) 1961-01-30
NL272287D NL272287A (fr) 1961-01-30
US85912A US3088776A (en) 1961-01-30 1961-01-30 Railway hopper cars
US140936A US3088777A (en) 1961-01-30 1961-09-26 Apparatus for storing granular material
ES271826A ES271826A1 (es) 1961-01-30 1961-11-08 Un aparato para transportar material granular
LU40801D LU40801A1 (fr) 1961-01-30 1961-11-09
DEG33587A DE1255037B (de) 1961-01-30 1961-11-14 Verschlussvorrichtung fuer den Entladeauslass eines Behaelters fuer koerniges Material
DK468661AA DK105165C (da) 1961-01-30 1961-11-23 Lukkemekanisme for afgangsåbningen i en beholder til granuleret materiale.
CH1372161A CH417474A (de) 1961-01-30 1961-11-24 Verschlussvorrichtung für das bzw. die Entladeenden eines oder mehrerer mittels Unterdruckes entladbaren Behälter für körniges Gut
AT925861A AT244381B (de) 1961-01-30 1961-12-06 Verschlußeinrichtung für die Auslaßöffnung von mittels Unterdruckes entleerbaren Behältern für Schüttgut
GB43675/61A GB923935A (en) 1961-01-30 1961-12-06 An apparatus for storing granular material
BE611197A BE611197A (fr) 1961-01-30 1961-12-06 Appareil d'emmagasinage de matières granulaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85912A US3088776A (en) 1961-01-30 1961-01-30 Railway hopper cars

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US3088776A true US3088776A (en) 1963-05-07

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US85912A Expired - Lifetime US3088776A (en) 1961-01-30 1961-01-30 Railway hopper cars

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US (1) US3088776A (fr)
AT (1) AT244381B (fr)
BE (1) BE611197A (fr)
CH (1) CH417474A (fr)
DE (1) DE1255037B (fr)
DK (1) DK105165C (fr)
ES (1) ES271826A1 (fr)
FR (1) FR1310087A (fr)
GB (1) GB923935A (fr)
LU (1) LU40801A1 (fr)
NL (2) NL272287A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189388A (en) * 1961-09-11 1965-06-15 Pullman Inc Hopper car and hopper unloading devices therefor
US3199925A (en) * 1962-01-10 1965-08-10 Pullman Inc Pneumatic or gravity discharge hopper arrangement
US3220778A (en) * 1963-10-17 1965-11-30 Gen Am Transport Railway hopper cars
US3258173A (en) * 1964-03-02 1966-06-28 North American Car Corp Hopper discharge apparatus
US3365241A (en) * 1965-05-06 1968-01-23 Union Carbide Corp Shipping vessel
US3414332A (en) * 1965-05-06 1968-12-03 Union Carbide Corp Shipping vessel
US3425748A (en) * 1967-06-28 1969-02-04 Midland Ross Corp Pneumatic lading discharge device
US3724909A (en) * 1971-12-13 1973-04-03 Pullman Transport Leasing Co Discharge arrangement for railway hopper cars
US4455110A (en) * 1982-02-22 1984-06-19 Acf Industries, Incorporated High volume railway hopper car
US5433559A (en) * 1993-01-22 1995-07-18 Trinity Industries, Inc. Pressurized hopper car
US6237505B1 (en) 1998-04-22 2001-05-29 Trn Business Trust Large capacity car body for pressure discharge railway hopper cars
US6273647B1 (en) 1998-04-22 2001-08-14 Trn Business Trust Pressure discharge railway hopper car
US6393997B1 (en) 1999-03-18 2002-05-28 Trn Business Trust Aerator pad assembly for railway hopper cars
CN107176175A (zh) * 2017-06-23 2017-09-19 中车资阳机车有限公司 一种漏斗车车厢活动连接结构
US9919865B2 (en) * 2015-07-24 2018-03-20 Dynamic Air Inc. Conveying systems

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043386A1 (fr) * 1980-07-03 1982-01-13 Welgro B.V. Véhicule pour le transport de matières en vrac, en poudre, en grains, ou en fragments
GB2510908B (en) * 2013-02-19 2019-12-11 Drax Power Ltd Equipment envelope for hopper wagon

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Publication number Priority date Publication date Assignee Title
US1901791A (en) * 1930-04-01 1933-03-14 Clarke Chapman Ltd Means for removing dust such as from plant fired by pulverulent fuel
US2303810A (en) * 1940-11-30 1942-12-01 Jo Zach Miller Apparatus for depositing materials
US2858165A (en) * 1957-04-10 1958-10-28 Lauhoff Grain Company Conveyor
US2919158A (en) * 1956-11-19 1959-12-29 Gen Am Transport Hoppers for finely divided materials

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DE342719C (de) * 1920-05-29 1921-10-22 Wilhelm Hartmann Vorrichtung zum Ein- und Ausschalten der einzelnen Absaugstellen von pneumatischen Foerderanlagen
US2378553A (en) * 1943-10-20 1945-06-19 Fuller Co Car unloader nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901791A (en) * 1930-04-01 1933-03-14 Clarke Chapman Ltd Means for removing dust such as from plant fired by pulverulent fuel
US2303810A (en) * 1940-11-30 1942-12-01 Jo Zach Miller Apparatus for depositing materials
US2919158A (en) * 1956-11-19 1959-12-29 Gen Am Transport Hoppers for finely divided materials
US2858165A (en) * 1957-04-10 1958-10-28 Lauhoff Grain Company Conveyor

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189388A (en) * 1961-09-11 1965-06-15 Pullman Inc Hopper car and hopper unloading devices therefor
US3199925A (en) * 1962-01-10 1965-08-10 Pullman Inc Pneumatic or gravity discharge hopper arrangement
US3220778A (en) * 1963-10-17 1965-11-30 Gen Am Transport Railway hopper cars
US3258173A (en) * 1964-03-02 1966-06-28 North American Car Corp Hopper discharge apparatus
US3365241A (en) * 1965-05-06 1968-01-23 Union Carbide Corp Shipping vessel
US3414332A (en) * 1965-05-06 1968-12-03 Union Carbide Corp Shipping vessel
US3425748A (en) * 1967-06-28 1969-02-04 Midland Ross Corp Pneumatic lading discharge device
US3724909A (en) * 1971-12-13 1973-04-03 Pullman Transport Leasing Co Discharge arrangement for railway hopper cars
US4455110A (en) * 1982-02-22 1984-06-19 Acf Industries, Incorporated High volume railway hopper car
US5433559A (en) * 1993-01-22 1995-07-18 Trinity Industries, Inc. Pressurized hopper car
US6237505B1 (en) 1998-04-22 2001-05-29 Trn Business Trust Large capacity car body for pressure discharge railway hopper cars
US6273647B1 (en) 1998-04-22 2001-08-14 Trn Business Trust Pressure discharge railway hopper car
US6393997B1 (en) 1999-03-18 2002-05-28 Trn Business Trust Aerator pad assembly for railway hopper cars
US9919865B2 (en) * 2015-07-24 2018-03-20 Dynamic Air Inc. Conveying systems
US20190039823A1 (en) * 2015-07-24 2019-02-07 James Steele Conveying systems
US10589925B2 (en) * 2015-07-24 2020-03-17 Dynamic Air Inc. Conveying systems
US20200207542A1 (en) * 2015-07-24 2020-07-02 James Steele Conveying systems
US10882690B2 (en) * 2015-07-24 2021-01-05 Dynamic Air Inc. Conveying systems
US11358786B2 (en) * 2015-07-24 2022-06-14 Dynamic Air Inc Conveying systems
CN107176175A (zh) * 2017-06-23 2017-09-19 中车资阳机车有限公司 一种漏斗车车厢活动连接结构
CN107176175B (zh) * 2017-06-23 2023-06-13 中车资阳机车有限公司 一种漏斗车车厢活动连接结构

Also Published As

Publication number Publication date
NL120788C (fr)
ES271826A1 (es) 1962-04-16
LU40801A1 (fr) 1962-05-09
DK105165C (da) 1966-08-29
BE611197A (fr) 1962-06-06
GB923935A (en) 1963-04-18
CH417474A (de) 1966-07-15
DE1255037B (de) 1967-11-23
FR1310087A (fr) 1963-03-04
AT244381B (de) 1966-01-10
NL272287A (fr)

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