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Publication numberUS3831792 A
Publication typeGrant
Publication dateAug 27, 1974
Filing dateJan 22, 1973
Priority dateJan 22, 1973
Publication numberUS 3831792 A, US 3831792A, US-A-3831792, US3831792 A, US3831792A
InventorsEldridge C, Katyll T, Waterman F
Original AssigneeOtter Trail Power Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Railroad car construction
US 3831792 A
Abstract
An open top gondola or hopper car construction is provided, the car having a plurality of hinged cover doors which are lifted to permit loading as the car is moved continuously along a track. When the loading of a car is completed, the cover doors are returned to closed position in which they are latched until the car arrives at a discharge station where again, with the car moving, the latch is released and the cover is raised a small amount by springs to permit unloading of the car as the car is rotated in a rotary dumper of known construction.
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Description  (OCR text may contain errors)

United States Patent [191 Waterman et a1.

RAILROAD CAR CONSTRUCTION Inventors: Fred W. Waterman, Daly City; Tadeusz Katyll, San Francisco; Colin C. Eldridge, Menlo Park, all of Calif.

Otter Trail Power Company, Fergus Falls, Minn.

Filed: Jan. 22, 1973 Appl. N0.: 325,632

Assignee:

References Cited UNITED STATES PATENTS 8/1954 Kepner 214/58 7/1965 Schwartz, Jr. ct a1. 105/377 [451 Aug. 27, 1974 3,316,858 5/1967 Fritz 105/377 3,384,031 5/1968 Dashew et a1 214/42 R Primary Examiner-M. Henson Wood, Jr. Assistant Examiner-Richard A. Bertsch Attorney, Agent, or Firm-Robert H. Eckhoff ABSTRACT An open top gondola or hopper car construction is provided, the car having a plurality of hinged cover doors which are lifted to permit loading as the car is moved continuously along a track. When the loading of a car is completed, the cover doors are returned to closed position in which they are latched until the car arrives at a discharge station where again, with the car moving, the latch is released and the cover is raised a small amount by springs to permit unloading of the car as the car is rotated in a rotary dumper of known construction.

8 Claims, 10 Drawing Figures PAIENTED ma -$1.192

SHEEI 1 0F 4 2 ll U fi w I 6 O /O 3'. am J92 PMENTEM SHEET 2 OF 4 FIG- -4- PATENIED ausz 1 m4 sum u or 4 RAILROAD CAR CONSTRUCTION BACKGROUND OF THE INVENTION Heretofore most covered rail cars were loaded through holes in the covers and unloaded by being either tilted or through assorted bottom discharge systems. Such systems are not suitable for loading a car without stopping the fil'llire train. The present invention makes it possible to load a train of cars without stopping the train and to close adequately both loaded and empty cars to weather conditions.

SUMMARY OF THE INVENTION The main purpose of this invention is to provide for automatic opening and closing of roof segments on top of a moving rail car during loading and unloading operations.

Additionally, this invention allows the use of roof segments on top of a rail car which prevents rain and snow from entering the car to freeze and cause unloading difficulties. In addition, the roof segments prevent dust from blowing out of the car.

Another object of this invention is to eliminate the need for manual opening and closing of roof segments during loading operations and obviate resulting schedule delays.

Still another purpose of this invention is a system which will allow cars to be emptied by a rotary car dumper.

Other objects of this invention will become apparent upon an understanding of the following description of the preferred embodiment of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a gondola car having several covers each of which is raised to permit loading while the car is moved along a track.

FIG. 2 comprises three front views of a rail car showing the cover being moved from a closed position to an open position for loading, these being respectively designated as A, B and C.

FIG. 3 is a plan view showing how a latch holding the cover in closed position is released.

FIG. 4 is a side elevation of a portion of the car showing the latch structure.

FIG. 5 is a section taken along the line 5-5 in FIG. 3.

FIG. 6 is a section taken along the line 6-6 in FIG. 5, showing the latch mechanism and means for releasing the latch.

FIG. 7 is a view taken along the line 7-7 in FIG. 4 showing the mast which is attached to the top of the cover and its relation to the spaced rails for effecting movement of the cover.

FIG. 8 is a section taken along the line 8-8 in FIG. 3 showing the hinge for the cover.

FIG. 9 is a plan view showing the relation between the spaced rails for moving the cover from closed to open position and the relation of these to the railroad track.

FIG. 10 is a side elevation of the spaced rails which effect the movement of the cover and the supports for the rails.

FIGS. 9 and 10 show only that portion of the rails which effect the movement of the cover from closed to open position, the rails continue so that the cover is moved from open to closed position, in this section the rails being a mirror image of the showings of FIGS. 9 and 10. In these views, the overall length of the scroll rails 60 and has been compressed by approximately one-fourth to facilitate showing of these figures.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, I have shown railroad track 20 and 21 with a gondola car 22 being moved along the track continuously. In practice a group of cars are attached together by coupling means 23 at each end of the cars to make up a train which is moved past the loading chute 24 which discharges a fluent solid material from a hopper (not shown).

The car shown in FIG. 1 has five roof segments but more or less than this number can be utilized. Each cover 27 is hinged by two hinges, generally indicated at 28, provided adjacent opposite ends of each cover and on one side of the car. Details of the hinge are shown in FIG. 8.

Each cover is maintained in a closed position during transit of the train by a latch, generally indicated at 31, including a recessed member 32 engaged with a rod 33 extending between spaced ears 34 attached to an angle iron 36 fastened to the upper outer edge of the car. Latch 31 is supported for pivotal movement on pin 37 extending between ears 38 attached to the underside of the angle iron 36. The latch includes a depending portion 39 which is engaged with a leaf spring 41 secured to the side of the car and which urges the latch member into latching position. The extending end 42 of the latch member is engaged with a horizontally extending release member 43 which is suitably supported from an inverted U-shaped frame 72A extending over the track 20 on each side thereof and adjacent the side of the car adjacent to a first position 51 to move the latch counterclockwise in FIG. 6 and so release the latch. Several spring means 35 are provided (FIGS. 5 and 6) so that, upon the release of the latch, the cover moves upward and is free of the latch.

To effect the lifting of each cover from a position in which the cover is closed to a position in which the cover is in an open position, I provide a mast, generally indicated at 61, on each cover, the mast including a base member 62 attached to the cover and having an arcuately formed portion 63 extending upwardly and terminating in a roller support 64 which extends horizontally. Roller 66 is mounted on the roller support 64 on bearings 67.

To effect the movement of the cover, I provide in suitable relation to the track 21 a pair of scroll rails 60 and 65 which the roller 66 engages to the spaced rails at position 51 whereat the spaced rails are in a position substantially over track 20. The rails are supported by a series of spaced supports 72 and which are provided in such relation to tracks 20 and 21 that movement of the cover by the spaced rails is effected as the train traverses the tracks 20 and 21. Thus the spaced rails extend over the track from the first position 61 in which the rails extend parallel to the track and are spaced apart vertically. The rails curve away from the track as at the second position 52 to a third position 53 in which the rails extend parallel to the track. The rails change their spaced relationship between the second position and the third position from one in which the rails are spaced apart vertically to one in which the rails are spaced apart horizontally. This changing in the relation of the rails is shown in FIGS. 2A, B and C.

The rails extend from the third position 53 to a fourth position 54 corresponding to the location of the chute 2 for filling up each car as it moves along tracks and 21. Beyond the fourth position, the tracks are provided in a mirror image of the track between the first and the fourth positions so that each cover is gradually lowered and is released to drop into a position in which the latch 31 is engaged by the rod 33 and the cover is secured in latched position so that the contents of the car are protected against wind, rain and snow during movement of the train to a point whereat the contents of the car are discharged.

We claim:

I. Means for effecting loading of a material into a rail car as the car is moved continuously over a track section past a chute discharging the material into the car, a cover on the car hinged along one side thereof to one side of the car, a latch on the other side of the cover and car for holding the cover in closed position over the car, latch engaging means positioned along side of the track adjacent the path of movement of said other side of the car for engaging and releasing the latch as the car moves therepast, means for raising the cover to a position in which the top of the car is exposed for filling of the car with the material, the raising means including an upright mast secured at a lower end thereof to the cover adjacent said other side thereof and extending upwardly from the cover and having a rail engaging member at an upper end thereof extending substantially parallel to the plane of the cover, and rail means supported adjacent the path of travel of the car in a position for engaging the underside of the member and pulling the member upwardly and away from the car first to pull the cover from a closed position to an open position to permit filling of the car as the car traverses the track and for thereafter lowering the cover from its open position to a closed position in which position the cover is retained by the latch.

2. In the means of claim I wherein the rail means comprises a pair of spaced rails which extend over the track section from a first position in which the rails extend parallel to the track and are spaced apart vertically to a second position from which the rails curve away from the track to a third position in which the rails extend parallel to the track, the rails changing their relationship between the second position and the third position from one in which the rails are spaced apart vertically to one in which the rails are spaced apart horizontally.

3. In the means of claim 2 wherein the rails extend from the third position to a fourth position spaced along the track from the third position, the chute for discharge of the material being at the fourth position.

4. In the means of claim 3 wherein the rails beyond the fourth position are provided in a mirror image position of the rail positions between the first and fourth positions.

5. In the means of claim 4 wherein the rails beyond the fourth position terminate at a point in advance of that position wherein the car is in closed position to permit the cover to fall into closed position to engage the latch.

6. In the means of claim ll, wherein the mast includes a base secured to an upper surface of the cover and extending substantially perpendicular to the cover, an inclined midportion extending angularly upwardly from the base, and said member connected to the upper end of the inclined midportion.

7. In the means of claim 6, wherein the member comprises a roller mounted for rotation about an axis substantially parallel to the plane of the cover.

8. In the means of claim I, wherein there are a plurality of covers on each car, each cover constructed to cover only a portion of the length of the open top of the car, said plurality of covers arranged end-to-end from one end of the car to the other end thereof and adapted to selectively expose and cover substantially the entire Patent 3,831,792 Dated August 27, 1974 Fred W. Waterman et a1 Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

I The assignee sliould read 1 Otter Tail Power Company 6.

Signed and sealed this 19th day of November 1974.

(SEAL) Attest:

MCCQY M. GIBSON JR. C. MARSIjALL DANN Attesting Officer commissloner of Patents FORM 20-1050 (10-69) USCOMM-DC 60376-5 69 uvs aovznnuzmramtmuornc:1 3594,30

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2686605 *Jul 5, 1951Aug 17, 1954Acf Ind IncSide tripping drop bottom car
US3194183 *Oct 24, 1962Jul 13, 1965Union Tank Car CoVehicle hatch cover
US3316858 *Oct 24, 1962May 2, 1967Union Tank Car CoRailway hopper car closure actuating device
US3384031 *Feb 15, 1965May 21, 1968Dashaveyor CoRailway transporation system
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4290725 *Oct 4, 1979Sep 22, 1981Kerr-Mcgee Coal CorporationParticulate material transfer system
US4396339 *Apr 2, 1981Aug 2, 1983Kerr-Mcgee Coal CorporationParticulate material transfer system
US4417840 *Apr 2, 1981Nov 29, 1983Kerr-Mcgee Coal CorporationParticulate material transfer system
US4478155 *Dec 22, 1981Oct 23, 1984Atchison, Topeka And Santa Fe Railway CompanyRailway container and car
US4790250 *Feb 5, 1988Dec 13, 1988Westinghouse Electric Corp.Dry ash handling system for an incinerator
US5036775 *Dec 1, 1989Aug 6, 1991Snead Edwin DCovered gondola car
US5300226 *Jan 28, 1991Apr 5, 1994Stewart E. Erickson Construction, Inc.Waste handling method
US5402732 *May 2, 1994Apr 4, 1995Seec, Inc.Railroad car conversion apparatus having adjustable framework for supporting material receiving bladders
US5443016 *Sep 6, 1994Aug 22, 1995Seec, Inc.Convertible hopper railcar design with internal bracing for adapting car to haul bladders
US5456188 *Apr 4, 1994Oct 10, 1995Michigan Railcar Repair, Inc.Open-top rail car cover construction having bucket lip and forklift tine engaging members
US5572932 *Oct 18, 1994Nov 12, 1996Aero Transportation ProductsRailcar hatch cover
US6092471 *Dec 9, 1998Jul 25, 2000Aero Transportation Products, Inc.Curved rail cover actuator
US7264296 *Jun 28, 2005Sep 4, 2007Fieldale Farms CorporationFeed truck compartment lid control system
US7878124Feb 27, 2008Feb 1, 2011Ecofab Covers International Inc.Semi-rigid railcar cover
US7967363 *Sep 8, 2010Jun 28, 2011Shorma CompanyRail car cover system
US8375867 *Sep 7, 2010Feb 19, 2013United Railcar Covers LlcRailcar cover opening/closing system
US20070234926 *Apr 5, 2006Oct 11, 2007Holland CompanyLid securement device and method
US20080236439 *Feb 27, 2008Oct 2, 2008Ecofab Covers International Inc.Semi-rigid railcar cover
US20100326318 *Sep 7, 2010Dec 30, 2010Baranowski Kenneth MRailcar cover opening/closing system
US20110030575 *Sep 8, 2010Feb 10, 2011Shur CompanyRail car cover system
CN102616508A *Mar 26, 2012Aug 1, 2012冯世英Rail-mounted door opening and closing machine
CN102616508BMar 26, 2012Nov 13, 2013冯世英Rail-mounted door opening and closing machine
WO2008104071A1 *Feb 27, 2008Sep 4, 2008Ecofab Covers International Inc.Semi-rigid railcar cover
WO2011075852A1 *Dec 21, 2010Jun 30, 2011Ecofab Covers International Inc.Railcar cover systems
Classifications
U.S. Classification414/373, 105/377.5
International ClassificationB61D7/00, B61D39/00, B61D7/30
Cooperative ClassificationB61D39/001, B61D7/30
European ClassificationB61D7/30, B61D39/00B
Legal Events
DateCodeEventDescription
Sep 26, 1988ASAssignment
Owner name: BECHTEL GROUP, INC., 50 BEALE ST., SAN FRANCISCO,
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BECHTEL INVESTMENTS, INC., A CORP. OF NV;REEL/FRAME:004951/0883
Effective date: 19880915
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BECHTEL INVESTMENTS, INC., A CORP. OF NV;REEL/FRAME:4951/883
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BECHTEL INVESTMENTS, INC., A CORP. OF NV;REEL/FRAME:004951/0883