US3109389A - Hopper car pivoted closure latching mechanism - Google Patents

Hopper car pivoted closure latching mechanism Download PDF

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Publication number
US3109389A
US3109389A US851197A US85119759A US3109389A US 3109389 A US3109389 A US 3109389A US 851197 A US851197 A US 851197A US 85119759 A US85119759 A US 85119759A US 3109389 A US3109389 A US 3109389A
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United States
Prior art keywords
door
upper edge
discharge opening
latch
gravity
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Expired - Lifetime
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US851197A
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Karlsson Karl-Erik
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SVENSKA JARNVAGSVERKSTADERNA AB
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SVENSKA JARNVAGSVERKSTADERNA AB
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    • 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/623—Gates or closures having closure members movable out of the plane of the opening having a rotational motion
    • 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
    • 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
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/54—Gates or closures
    • B65D2590/547—Gates or closures in multiple arrangement
    • 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
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/54—Gates or closures
    • B65D2590/66—Operating devices therefor
    • B65D2590/662—Operating devices therefor allowing a particular motion, e.g. combination of rotational and linear

Definitions

  • the unloading doors are usually pivotally mounted at the upper edge and provided at the lower edge with catches for cooperation with latches on a locking shaft which is rotatably mounted in the body of the car.
  • the doors When the doors are to be shut, they have to be raised and swung upward into closed position whereupon the locking shaft is turned to closing position.
  • This invention provides such an arrangement of the unloading doors that they can be opened and shut under the action of gravity.
  • the invention is characterized by the fact that the door is pivotally suspended on a shaft the location of which relative to the center of gravity of the door is such as to cause the force of gravity acting on the door to exert a torque which tends to shut the door.
  • FIG. 1 is an elevation of a hopper car provided with bottom doors according to the invention
  • FIG. 2 is a vertical projection of part of the bottom hopper of said car on an enlarged scale
  • FIG. 3 shows a plan view of the door proper
  • FIG. 4 is a vertical elevation on an enlarged scale of a hopper with a door according to a modified embodiment.
  • a door 1 which closes a bottom opening in the lower part of the body 10 of a hopper car illustrated with two hopper discharge portions 10a, 10b is at its upper edge provided with suspension arms 2 pivoted to a shaft 2, the location of which relative to the center of gravity cg of the door is such as to cause the force of gravity acting on the door to exert a torque which tends to keep the door in a closed position.
  • the door is provided with locking means including catches 4 which in the closed position engage corresponding latches 4' provided on a locking shaft 5.
  • the door When the locking shaft 5 is turned by a lever 5' into an open position, in which the latches 4 are removed from the catches 4, the door will be opened due to the Weight of the load and will be automatically locked by a latch device including a latch 3 engaging a projection 3' at the upper edge of the door (FIG. 2).
  • the latch 3 is pivoted to a beam appertaining to the body of the car so as to be able to swing up from a horizontal position but being prevented from swinging downwards.
  • the center of gravity of the door In the open position, the center of gravity of the door is located at a higher level than the center of gravity in the closed position.
  • the latch 3 When the doors are to be shut, the latch 3 is released by being swung upwards whereupon the door falls back into closed position.
  • the upper edge of the door 1 is pivotally mounted on a shaft 2 which is displaceable upwards along slots 8 provided in guide members 8' disposed on either side of the door and rigidily secured to the body 10 of the car.
  • the door is provided with locking means including catches 4 which in closed position are engaged by a corresponding number of latches 4 secured to the locking shaft 5 operable by a lever 5.
  • the lever 5' as well as the latches 4 are keyed to the shaft 5.
  • the door is further suspended on two depending arms 6, one such arm 3,109,389 Patented Nov. 5, 1963 being provided on either side of the door.
  • the upper ends of the depending arms are rotatably secured to the body 1% of the car such as to be able to swing around a shaft 9, and their lower ends are articulated to the door.
  • the center of gravity cg of the door is located on a vertical line between the axis of the horizontal shaft 2 and that of the horizontal shaft 9 supporting the upper ends of the arms 6. If the locking shaft 5 is turned by the lever 5 to an open position, the doors will be opened due to the weight of the load and will be automatically locked by a latch device including latch 7 pivotally mounted on body 10 at the upper edges of the doors which is engaged by cross piece 3" of door 1, as indicated by chairndotted lines. In the open position, the center of gravity of the door is located at a higher level than the center of gravity in the closed position.
  • a hopper vehicle having a body including a discharge opening therein directed obliquely downwardly, a bottom discharge door having an upper edge, said door being disposed over said discharge opening and including suspension arms rigidly secured at said upper edge, means for pivoting the free ends of said suspension arms to the body on an axis located with respect to the center of gravity of the door to bias the 'door to closed position, locking means disposed at the bottom portion of the discharge opening for engaging and locking the distal edge of the door to said body, a latch device mounted on said body adjacent said door, and projection means disposed on said door on the upper edge, said projection means engaging said latch device to operate same during the opening movement of the door to latch the door in an open position.
  • a hopper vehicle having a body including a discharge opening therein directed obliquely downwardly, a bottom discharge door having an upper edge, said door being disposed over said discharge opening, guide means mounted on said body parallel to the sides of the discharge opening, means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Lock And Its Accessories (AREA)

Description

N 1963 KARL-ERIKKARLSSON 3,109,339
HOPPER CAR PIVOTED CLOSURE LATCHING MECHANISM Filed Nov. 5, 1959 INVENTOR.
KARL-ERIK Kmussow BY 1 M 7 United States Patent 3,109,339 HGPPER CAR PIVOTED CLGSURE LATCHHNG MECHANISM Karl-Erik Karlsson, Suudbyberg, Sweden, assignor to AB Svenska .i'arnvagsverirstaderna, a corporation of Sweden Filed Nov. 5, 1959, Ser. No. 851,197 Ciaiins priority, appiication Sweden Nov. 5, 1958 2 Ciaims. (U. 195-253) In self-discharging hopper cars and similar vehicles for the transport of load in bulk, such as ore, the unloading doors are usually pivotally mounted at the upper edge and provided at the lower edge with catches for cooperation with latches on a locking shaft which is rotatably mounted in the body of the car. When the doors are to be shut, they have to be raised and swung upward into closed position whereupon the locking shaft is turned to closing position.
This invention provides such an arrangement of the unloading doors that they can be opened and shut under the action of gravity.
The invention is characterized by the fact that the door is pivotally suspended on a shaft the location of which relative to the center of gravity of the door is such as to cause the force of gravity acting on the door to exert a torque which tends to shut the door.
Embodiments of the invention are described hereinbelow with reference to the annexed drawing in which FIG. 1 is an elevation of a hopper car provided with bottom doors according to the invention, FIG. 2 is a vertical projection of part of the bottom hopper of said car on an enlarged scale, FIG. 3 shows a plan view of the door proper and FIG. 4 is a vertical elevation on an enlarged scale of a hopper with a door according to a modified embodiment.
A door 1 which closes a bottom opening in the lower part of the body 10 of a hopper car illustrated with two hopper discharge portions 10a, 10b is at its upper edge provided with suspension arms 2 pivoted to a shaft 2, the location of which relative to the center of gravity cg of the door is such as to cause the force of gravity acting on the door to exert a torque which tends to keep the door in a closed position. At its lower edge, the door is provided with locking means including catches 4 which in the closed position engage corresponding latches 4' provided on a locking shaft 5. When the locking shaft 5 is turned by a lever 5' into an open position, in which the latches 4 are removed from the catches 4, the door will be opened due to the Weight of the load and will be automatically locked by a latch device including a latch 3 engaging a projection 3' at the upper edge of the door (FIG. 2). The latch 3 is pivoted to a beam appertaining to the body of the car so as to be able to swing up from a horizontal position but being prevented from swinging downwards. In the open position, the center of gravity of the door is located at a higher level than the center of gravity in the closed position.
When the doors are to be shut, the latch 3 is released by being swung upwards whereupon the door falls back into closed position.
In the embodiment illustrated in FIG. 4, the upper edge of the door 1 is pivotally mounted on a shaft 2 which is displaceable upwards along slots 8 provided in guide members 8' disposed on either side of the door and rigidily secured to the body 10 of the car. At its lower end the door is provided with locking means including catches 4 which in closed position are engaged by a corresponding number of latches 4 secured to the locking shaft 5 operable by a lever 5. The lever 5' as well as the latches 4 are keyed to the shaft 5. The door is further suspended on two depending arms 6, one such arm 3,109,389 Patented Nov. 5, 1963 being provided on either side of the door. The upper ends of the depending arms are rotatably secured to the body 1% of the car such as to be able to swing around a shaft 9, and their lower ends are articulated to the door. The center of gravity cg of the door is located on a vertical line between the axis of the horizontal shaft 2 and that of the horizontal shaft 9 supporting the upper ends of the arms 6. If the locking shaft 5 is turned by the lever 5 to an open position, the doors will be opened due to the weight of the load and will be automatically locked by a latch device including latch 7 pivotally mounted on body 10 at the upper edges of the doors which is engaged by cross piece 3" of door 1, as indicated by chairndotted lines. In the open position, the center of gravity of the door is located at a higher level than the center of gravity in the closed position.
When the doors are to be shut, the latch 7 is released whereupon the door falls back into closed position.
What I claim is:
1. In a hopper vehicle having a body including a discharge opening therein directed obliquely downwardly, a bottom discharge door having an upper edge, said door being disposed over said discharge opening and including suspension arms rigidly secured at said upper edge, means for pivoting the free ends of said suspension arms to the body on an axis located with respect to the center of gravity of the door to bias the 'door to closed position, locking means disposed at the bottom portion of the discharge opening for engaging and locking the distal edge of the door to said body, a latch device mounted on said body adjacent said door, and projection means disposed on said door on the upper edge, said projection means engaging said latch device to operate same during the opening movement of the door to latch the door in an open position.
2. In a hopper vehicle having a body including a discharge opening therein directed obliquely downwardly, a bottom discharge door having an upper edge, said door being disposed over said discharge opening, guide means mounted on said body parallel to the sides of the discharge opening, means. for pivotally mounting the upper edge of said door to the guide means on an axis located with respect to the center of gravity of the door to bias the door to closed position, supporting arms having one end thereof pivotally connected to said body while the other ends of said supporting arms are pivotally mounted toward the distal edge of said door, locking means disposed at the bottom portion of the discharge opening for engaging and locking the distal edge of the door to said body, a latch device mounted on said body adjacent said door, and means disposed on said door adjacent the upper edge for engaging said latch device to operate same during the opening movement of the door to latch the door in an open position.
References Cited in the file of this patent UNITED STATES PATENTS 571,480 Johnson Nov. 17, 1896 601,203 Truax Mar. 22, 1898 658,783 King Oct. 2, 1900 746,519 Johnson Dec. 8, 1903 789,756 Piper May 16, 1905 1,071,802 Schlatz Sept. 2, 1913 1,074,994 Van Scoy Oct. 7, 1913 1,109,601 Steinmeyer Sept. 1, 1914 1,134,251 Barber et a1. Apr. 6, 1915 1,179,266 Baskerville Apr. 11, 1916 1,739,026 Conner Dec. 10, 1929 1,949,555 Woehle Mar. 6, 1934 FOREIGN PATENTS 21,057 Great Britain Dec. 14, 1895

Claims (1)

1. IN A HOPPER VEHICLE HAVING A BODY INCLUDING A DISCHARGE OPENING THEREIN DIRECTED OBLIQUELY DOWNWARDLY, A BOTTOM DISCHARGE DOOR HAVING AN UPPER EDGE, SAID DOOR BEING DISPOSED OVER SAID DISCHARGE OPENING AND INCLUDING SUSPENSION ARMS RIGIDLY SECURED AT SAID UPPER EDGE, MEANS FOR PIVOTING THE FREE ENDS OF SAID SUSPENSION ARMS TO THE BODY ON AN AXIS LOCATED WITH RESPECT TO THE CENTER OF GRAVITY OF THE DOOR TO BIAS THE DOOR TO CLOSED POSITION, LOCKING MEANS DISPOSED AT THE BOTTOM PORTION OF THE DISCHARGE OPENING FOR ENGAGING AND LOCKING THE DISTAL EDGE OF THE DOOR TO SAID BODY, A LATCH DEVICE MOUNTED ON SAID BODY ADJACENT SAID DOOR, AND PROJECTION MEANS DISPOSED ON SAID DOOR ON THE UPPER EDGE, SAID PROJECTION MEANS ENGAGING SAID LATCH DEVICE TO OPERATE SAME DURING THE OPENING MOVEMENT OF THE DOOR TO LATCH THE DOOR IN AN OPEN POSITION.
US851197A 1958-11-05 1959-11-05 Hopper car pivoted closure latching mechanism Expired - Lifetime US3109389A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163424A (en) * 1977-09-06 1979-08-07 Pullman Inc. Hopper door locking and actuating mechanism
US9511929B2 (en) 2011-12-21 2016-12-06 Oren Technologies, Llc Proppant storage vessel and assembly thereof
USRE46334E1 (en) 2012-07-23 2017-03-07 Oren Technologies, Llc Proppant discharge system and a container for use in such a proppant discharge system
US9617066B2 (en) 2011-12-21 2017-04-11 Oren Technologies, Llc Method of delivering, transporting, and storing proppant for delivery and use at a well site
US9624030B2 (en) 2014-06-13 2017-04-18 Oren Technologies, Llc Cradle for proppant container having tapered box guides
USRE46381E1 (en) 2012-11-02 2017-05-02 Oren Technologies, Llc Proppant vessel base
US9670752B2 (en) 2014-09-15 2017-06-06 Oren Technologies, Llc System and method for delivering proppant to a blender
US9676554B2 (en) 2014-09-15 2017-06-13 Oren Technologies, Llc System and method for delivering proppant to a blender
US9718610B2 (en) 2012-07-23 2017-08-01 Oren Technologies, Llc Proppant discharge system having a container and the process for providing proppant to a well site
US9758081B2 (en) 2012-07-23 2017-09-12 Oren Technologies, Llc Trailer-mounted proppant delivery system
US9758082B2 (en) 2013-04-12 2017-09-12 Proppant Express Solutions, Llc Intermodal storage and transportation container
US9796319B1 (en) 2013-04-01 2017-10-24 Oren Technologies, Llc Trailer assembly for transport of containers of proppant material
USRE46576E1 (en) 2013-05-17 2017-10-24 Oren Technologies, Llc Trailer for proppant containers
USRE46590E1 (en) 2013-05-17 2017-10-31 Oren Technologies, Llc Train car for proppant containers
US9809381B2 (en) 2012-07-23 2017-11-07 Oren Technologies, Llc Apparatus for the transport and storage of proppant
USRE46613E1 (en) 2012-11-02 2017-11-28 Oren Technologies, Llc Proppant vessel
US9845210B2 (en) 2016-01-06 2017-12-19 Oren Technologies, Llc Conveyor with integrated dust collector system
USRE46645E1 (en) 2013-04-05 2017-12-26 Oren Technologies, Llc Trailer for proppant containers
US9862551B2 (en) 2012-07-23 2018-01-09 Oren Technologies, Llc Methods and systems to transfer proppant for fracking with reduced risk of production and release of silica dust at a well site
USRE47162E1 (en) 2012-11-02 2018-12-18 Oren Technologies, Llc Proppant vessel
USD847489S1 (en) 2012-09-24 2019-05-07 Sandbox Logistics, Llc Proppant container
US10518828B2 (en) 2016-06-03 2019-12-31 Oren Technologies, Llc Trailer assembly for transport of containers of proppant material
US10618744B2 (en) 2016-09-07 2020-04-14 Proppant Express Solutions, Llc Box support frame for use with T-belt conveyor
US11873160B1 (en) 2014-07-24 2024-01-16 Sandbox Enterprises, Llc Systems and methods for remotely controlling proppant discharge system

Citations (13)

* Cited by examiner, † Cited by third party
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GB189521057A (en) * 1895-11-07 1895-12-14 John Johnson Improvements in Hopper Cars.
US571480A (en) * 1896-11-17 johnson
US601203A (en) * 1898-03-22 Ore-car
US658783A (en) * 1900-02-26 1900-10-02 American Car & Foundry Co Car construction.
US746519A (en) * 1903-10-28 1903-12-08 Sinclair J Johnson Dumping-car.
US789756A (en) * 1905-01-10 1905-05-16 Alexander Ross Piper Dumping-vehicle or similar apparatus.
US1071802A (en) * 1913-02-24 1913-09-02 Otto Schlatz Latch.
US1074994A (en) * 1911-08-24 1913-10-07 Goodwin Car Company Dump-car attachment.
US1109601A (en) * 1912-12-17 1914-09-01 American Car & Foundry Co Grain-hopper.
US1134251A (en) * 1914-10-30 1915-04-06 Standard Car Truck Co Hopper-car.
US1179266A (en) * 1915-08-31 1916-04-11 John W Baskerville Railway-car.
US1739026A (en) * 1929-03-13 1929-12-10 William T Conner Grave-filling machine
US1949555A (en) * 1932-05-13 1934-03-06 Woehle Clayton Max Railroad freight car and door mechanism therefor

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571480A (en) * 1896-11-17 johnson
US601203A (en) * 1898-03-22 Ore-car
GB189521057A (en) * 1895-11-07 1895-12-14 John Johnson Improvements in Hopper Cars.
US658783A (en) * 1900-02-26 1900-10-02 American Car & Foundry Co Car construction.
US746519A (en) * 1903-10-28 1903-12-08 Sinclair J Johnson Dumping-car.
US789756A (en) * 1905-01-10 1905-05-16 Alexander Ross Piper Dumping-vehicle or similar apparatus.
US1074994A (en) * 1911-08-24 1913-10-07 Goodwin Car Company Dump-car attachment.
US1109601A (en) * 1912-12-17 1914-09-01 American Car & Foundry Co Grain-hopper.
US1071802A (en) * 1913-02-24 1913-09-02 Otto Schlatz Latch.
US1134251A (en) * 1914-10-30 1915-04-06 Standard Car Truck Co Hopper-car.
US1179266A (en) * 1915-08-31 1916-04-11 John W Baskerville Railway-car.
US1739026A (en) * 1929-03-13 1929-12-10 William T Conner Grave-filling machine
US1949555A (en) * 1932-05-13 1934-03-06 Woehle Clayton Max Railroad freight car and door mechanism therefor

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US4163424A (en) * 1977-09-06 1979-08-07 Pullman Inc. Hopper door locking and actuating mechanism
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