US2386702A - Hopper discharge - Google Patents

Hopper discharge Download PDF

Info

Publication number
US2386702A
US2386702A US448814A US44881442A US2386702A US 2386702 A US2386702 A US 2386702A US 448814 A US448814 A US 448814A US 44881442 A US44881442 A US 44881442A US 2386702 A US2386702 A US 2386702A
Authority
US
United States
Prior art keywords
door
frame
part
hopper
discharge
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
US448814A
Inventor
John J Mcbride
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.)
ACF Industries Inc
Original Assignee
American Car and Foundry Co
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
Application filed by American Car and Foundry Co filed Critical American Car and Foundry Co
Priority to US448814A priority Critical patent/US2386702A/en
Application granted granted Critical
Publication of US2386702A publication Critical patent/US2386702A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/54Gates or closures
    • B65D90/58Gates or closures having closure members sliding in the plane of the opening
    • B65D90/587Gates or closures having closure members sliding in the plane of the opening having a linear motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00Hopper cars
    • B61D7/14Adaptations of hopper elements to railways
    • B61D7/16Closure elements for discharge openings
    • B61D7/20Closure elements for discharge openings sliding

Description

Oct. 9, 1945. J. J. MCBRIDE HOPPER DISCHARGE Filed June 27, l942 4 Sheets-Sheet 1 BY M 1/. W

' ATTORNEY LDN INVENTOR- Join (1/7 Bride 4 Sheets-Sheet 2 ATTO RN EY J. J. MCBRIDE HOPPER DISCHARGE Filed June 27, 1942 4 Sheets-Sheet 3 INVENTOR 01222 J/VBrz'de ATTORNEY Oct. 9, 1945. J..J. M BRIDE HOPPER D'ISCHARGE Filed June 27, 1942 4 Sheets-Sheet 4 AQHQ lllll l lln'il'llllllllll'lll IIIII lllIIl-I dblm z lw ride ATTORNEY Patented Oct. 9, 1945 UNITED STATES PATENT. oFFlcE,

HOPPER DISCHARGE John I; McBride, Bayonne, N. J., assignor to American Car and Foundry Company; New York, N. Y., a corporation ofNew Jersey ApplicationJ'ame 27, 1942, Serial Noeois sli proposed that the door be free of its sealing joint with the frame during movement of the door to open or close the discharge outlet, but in all arrang'eme'n-ts so far'built orproposed the door was Shifted toward'its sealing joint through operation of an independent medium such as a lever or slide which had to be operated subsequent to the closing and prior to the opening of the door. Often the: operator was careless and failed to operate the independent means moving the'door into sealing relation, with the result that considerable fine lading was lost during transit of the car. It is an object, therefore, of the present invention to provide a simple foolproof hopper discharge arrangement in which the door is automatically shifted into sealing relation with the frame during the final closing movement of the door.

A further object ofthe invention is the proshowing the door in closed; locked: and sealed position;

Fig. 5 is an elevational view disclosing a slight ly modified form ofthe door operating means, and

' Fig; 6' is a sectional view taken substantially on line 6-601 Fig. 5.

Referring now to-the drawings indetail it will be seen that the: hopper is formed of sloping floor sheets 3' to which are attached inclined flanges to of a hopper door: frame part A. This door frame-part is preferably' iormedas a casting having thefloor attachmgZfiangejust referred to: and a vertically extending portion l2 defining the hopper discharge outlet and having its: lower surface" it planed so ast'o provide a sealing portion against which the door-may contact. Inuorder to house'and protect the door; as: well as support it, the flanges l2 of the hopper defining outlet are form'ed with outstanding ledges or shelves l6 merging at their ends-'into'downwardly directed walls it which in turn terminate in outwardly directed flanges 20 to'which a discharge boot may beattached if it is so desired.- At the side of the vision of a hopper discharge arrangement in,

which the door can not be locked in closed posi-' tion until it is in sealing relation with. the door frame,

A still further object of the invention is the provision of a hopper discharge arrangement using a sliding door'operable by a pinioncarried by the door and engaging an inverted rack thereby preventing any clogging due to collection of lading on the rack.

A yet further object of the invention is the provision of a special sealing means or' scraper which follows the door and prevents material from following the door during its opening move merits.

These and other objects of the invention will hopper discharge outlet toward which the door moves when being: opened, the sealing portion is madedouble thus providing'a groove 22 (Figs. 1, 2 aud t) and this groove is adapted to receive a scraper bar 24' freely movable to-follow the vertic'al movements of the sliding door. At the sides of the discharge outlet the door'frame part is provided with integrally formed ledges 26 along which the doormay move between open and closed positions. l is-clearly shown in Fig. 1-, the

be apparent to persons skilled in the artfrom a study of the following description and accompanying drawings, in which:

Figure 1 is a sectional view of' the improved hopper discharge arrangement and showing. the door in open or hopper discharge position;

Fig. 2 is a sectional View taken substantially on line 2-2 of Fig. I

Fig. 3 is a transverse sectional view taken through the operating means'for the door;

Fig. 4 is a sectional view similar to Fig. 1 but 4 shelf l6 isonset' upwardly a slight amount as at 28 and the vertical flange l8" at this sideof the frame. is sl'otted as at Z fl in' order to permit sliding. of the doortherethr'oughl The door is supported in its sliding movements at-this side of the frame not only by tlie'fiang'e' l3 but also by a cross tie'32 extendingbetween the shelf members 86' and directly beneath the scraper member 24.

The door part-'B,'which is movable between open and closed positions to open or close the discharge outlet, is supported for such movement upon the ledges or shoulders 26' and the reinforcing or tie member 32 as wellas by the flange l8 where interrupted by the slot 36. The door is preferably formed with a plane upper surface fllreinforced onits under side by a peripheral rib 42 as well as" by spaced apart parallel ribs M defininga groove or slot 45 best shown in Figs. 2 and 6. As clearly shown in Fig. 1 the top-surface MI of th door partisspaced-below the sealing portions l-fl ofthe door frame part of the car structure.

and, therefore, the door can be readily moved between its partially closed and fully open positions. In order that the door may be positively sealed against the sealing portions l4 a plurality of brackets 48 (Figs. 1 and 2) are formed on the frame and adapted to receive pins 50 extending through cam members 52. Each of these cam members is provided with a rounded or cam like surface 54 and a projection or lug 56. The pivoting of the cams is at a point considerably above their center in order that the lower end will forrn a weight tending to hold the cams in the upright positions of Fig. 1. For purposes of simplicity in description of operation the cams at the forward edge of the frame are designated by the letter C, while those at the rear of the frame are designated by letters D. It will be seen that the projecting lugs 56 of the cams C project into the path of movement of the leading edgeof the door, while the lugs of cams D project into the grooves or slots 46 formed by the spaced reinforcing ribs of the door. The projections of lugs D will accordingly be interposed in the path of the rear ends of the slots 46 to be moved thereby during closing of the door.

In order to operate the door the rear edge is provided with spaced projections 60 constituting eyes for the reception of bearings 62 carried by an operating shaft 64. The operating shaft has attached thereto adjacent the outer end an operatin member 66 formed with a plurality of openings 68 for the reception of any suitable bar or rod by means of which the shaft may be rotated. Intermediate the ends of the shaft pinion gears 10 are firmly attached by means of bolts or other devices 12. These pinion gears are adapted to mesh with inverted rack members 14 welded or otherwise secured to an inverted panshaped housing member 16 secured to the hopper outlet door frame and to a brace 18 of the car structure. The downturned sides of the housing 16 are slotted as at 80 to permit longitudinal movement of the shaft 64 as it is forced to travel along the rack by rotation of the shaft. The slotted sides of the pan like housing are reinforced by straps or ties- 82, as clearly shown in the figures. The door is locked in itsfully closed position by means of a'pin or other device 184 fastened to the car floor by a chain 86 in order that it may not become lost. The pin or other means extends, as clearly shown in the figures, through the pan like housing and through spaced eyes 88 formed on the door frame part as well as through an eye 50 formed on the door part. The entire arrangement may be sealed by passing a seal through holes 9| formed in a cylindrical member 92 welded to the pan like housing and surrounding the head of the locking pin or other means 84.

In some cases it may be desired to eliminate the pan like housing 16 and this may be done, as clearly shown in Figs. and 6, by fastening the rack bars to spaced angle members 94 attached to the hopper frame and to the brace 95 The pinion shaft of the door will then be supported upon the horizontal leg 96 of an angle member 91 welded or otherwise secured to the hopper door frame and to the brace 95. Insofar as the door, hopper, and door frame, as well as the operating means for the door, are concerned the modification shown in Figs. 5 and 6 is substantially identical with that previously described in detail and accordingly the same reference numerals have been applied thereto wherever possible.

. or other foreign material that may have been collected on the door from being carried into the hopper discharge outlet. As the door approaches its final closed position the leading edge of the door will strike projections 56 of cam members C and the projections 56 of cam members D will simultaneously be contacted by the ends of slots 46 formed in the door. Contact of these door parts with the projections 56 will cause rotation of the cams C and D and force the curved portions 54 to raise the door upwardly into sealing contact with the sealing portions or edges H of the door frame or outlet defining member. During upward movement of the door the scraper bar 24 will, of course, rise in its slot 22 to the position shown in Fig. 4. When the door has been fully closed, as shown inFig; 4, then the locking'pin 84 may be dropped into position holding the door closed and if desired the door may then be sealedin this position by an approved sealing device (not shown). In opening the door the locking pin must first be removed, after which counter-clockwise rotation of the pinion shaft, as viewed in Fig. 4,'will cause an opening movement of the door with the result that cams C and D will rotate in a clockwise direction and lowerthe door onto the shelves. 26 along which it will move to fully opened position. Thusit will be seen that the dooris automatically raised into sealing position during final closing movement and that the door .can not be locked until it is fully sealed with respect to the hopper outlet member or door frame. In this manner loss of lading through carelessness of operators is avoided. During opening of the door the scraper bar 24 will positively prevent material following thedoor and being lost, also,the use of the inverted rack barwill prevent collection of snow, ice, cinders or other foreign-material that might hinder operation of the door mechanism.

While the invention has been described more or less in detail, it will be obvious to persons skilled in the art that various modifications and rearrangements of parts maybe made and all such modifications and rearrangements of parts are'contemplated as will fall within the scope of the appended claims. defining my invention.

What is claimed is: 1. In a railwayhopper car having a floor providedwith a. door frame part defining a lading discharge opening, a door part slidably mounted on the frame and movable from an open to a closed position closing said opening, and spaced apart means rotatably carried byone of said parts and directly engageable with the other of said parts to be rotated thereby into a position automatically raising said door part upwardly into sealing relation with'said frame part during the final closing movement of the door part.

2. In a railway hopper car having a floor provided with a door frame part defining a lading discharge opening, a door-part slidably mounted on the frame and movable from an openito a closed position closing said opening, and means rotatably carried-byone of said parts'and'engageable with the other of said parts to be rotated thereby into a position automatically raising said door part upwardly into sealing relation with said frame part during the final closing movement of the door part, said means comprising a plurality of cams pivotally carried by said frame part and formed with projecting lugs disposed in the path of movement of portions of said door part.

3. In a railway hopper car having a floor provided with a door frame part defining a lading discharge opening, a door part slidably mounted on the frame and movable from an open to a closed position closing said opening, and means rotatably carried by one of said parts and engageable with the other of said parts to be rotated into a position automatically raising said door part upwardly into sealing relation with said frame part during the final closing movement of the door part, said means including a cam pivotally carried by said frame part and formed with a projecting lug engageable with the leading edge of the closing door.

4. In a railway hopper car having a floor provided with a door frame part defining a lading discharge opening, a door part slidably mounted on the frame and movable from an open to a closed position closing said opening, said door part being formed with a pair of spaced stiffening ribs defining a groove therebetween, a plurality of cams pivotally carried by said frame part and each formed with a projecting lug, the lug of one cam engaging the leading edge of the closing door part and the lug of another cam engaging an end of said groove during closing of the door part, said cams automatically raising said door part upwardly into sealing relation with said frame part during the final closing movements of said door part.

5. In a railway hopper car having a floor provided with a door frame part defining a lading discharge outlet and formed with a sealing portion, a door part slidably mounted on the frame and in engagement with said sealing portion when in fully closed position closing the discharge outlet, and means rotatably carried by one of said parts and tightly engaging the other part to hold the door part in engagement with said sealing portion when the door is in fully closed position, said means automatically lowering said door part away from said sealing portion upon commencement of movement of said door part toward a position opening said discharge outlet, and a scraper bar housed in said sealing portion and lowering with said door part whereby said scraper bar is at all times in contact with said door part.

6. In a railway hopper car having a floor provided with a door frame, a sealing portion formed on said frame and defining a discharge outlet, a door slidably mounted on said frame and in engagement with substantially the entire sealing portion when in outlet closing position, a groove formed in one part of said sealing portion, and a scraper bar located in said groove and being in constant engagement with said door irrespective of the relative position of the door in the frame.

7. In a railway hopper car having a floor provided with a door frame defining a discharge outlet, a door slidably mounted on said frame and movable from a closed to an open position for discharge of lading from the outlet, and scraper means housed by said frame and resting on said door to prevent lading following the door as it is moved from closed to open position.

8. In a railway hopper oar having a floor provided with a door frame defining a discharge outlet, a door slidably mounted on said frame and movable from a closed to an open position for discharge of lading from the outlet, and scraper means housed by said frame and resting on said door to prevent lading following the door as it is moved from closed to open position, said scraper means comprising a bar urged by gravity toward the door and retained in a groove formed in said door frame.

9. In a. railway hopper car having a floor provided with a door frame defining a discharge outlet, a door slidably mounted on said frame and movable from a closed to an open position for discharge of lading from the outlet, an inverted rack bar carried by said frame and extending toward one side thereof, a shaft journaled in the free end of said door and carrying a pinion engageable with said rack bar, and means to rotate said shaft and pinion thereby causing the latter to roll along the rack bar to open said door.

10. In a railway hopper car having a floor provided with a door frame part defining a lading discharge opening, a door part slidably mounted on the frame and movable from an open to a closed position closing said opening, and means rotatably carried by one of said parts and being formed with a projecting portion and a cam portion, said projecting portion being engageable with the other of said parts during final closing movement of said door part whereby to rotate said means and swing said cam portion into a position raising said door part upwardly into sealing relation with said frame part.

JOHN J. MCBRIDE.

US448814A 1942-06-27 1942-06-27 Hopper discharge Expired - Lifetime US2386702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US448814A US2386702A (en) 1942-06-27 1942-06-27 Hopper discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448814A US2386702A (en) 1942-06-27 1942-06-27 Hopper discharge

Publications (1)

Publication Number Publication Date
US2386702A true US2386702A (en) 1945-10-09

Family

ID=23781789

Family Applications (1)

Application Number Title Priority Date Filing Date
US448814A Expired - Lifetime US2386702A (en) 1942-06-27 1942-06-27 Hopper discharge

Country Status (1)

Country Link
US (1) US2386702A (en)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628574A (en) * 1949-08-24 1953-02-17 Entpr Railway Equipment Co Head for gate operating mechanism for hopper cars
US2630768A (en) * 1948-08-20 1953-03-10 Entpr Railway Equipment Co Load discharging car
US2638060A (en) * 1949-06-29 1953-05-12 Entpr Railway Equipment Co Discharge outlet for railway cars
US2640440A (en) * 1949-11-18 1953-06-02 Entpr Railway Equipment Co Closure for hopper of hopper type railway cars
US2644408A (en) * 1949-04-09 1953-07-07 Entpr Railway Equipment Co Gate closing and locking mechanism for discharge outlets of car hoppers
US2646006A (en) * 1948-12-24 1953-07-21 Entpr Railway Equipment Co Discharge outlet and closure assembly
US2657661A (en) * 1952-01-14 1953-11-03 United Fruit Co Insulating hatchcover with inflatable gasket
US2712290A (en) * 1953-12-14 1955-07-05 Entpr Railway Equipment Co Locking mechanism for sliding gate of load containing hopper
US2738739A (en) * 1952-10-23 1956-03-20 Entpr Railway Equipment Co Railway car hopper outlet assembly
US2738735A (en) * 1951-08-14 1956-03-20 Entpr Railway Equipment Co Discharge outlet assembly for a hopper
US2741192A (en) * 1948-08-20 1956-04-10 Entpr Railway Equipment Co Sliding closure for discharge outlet
US2791973A (en) * 1952-01-04 1957-05-14 Entpr Railway Equipment Co Operating mechanism for sliding gate for a discharge outlet mounted on a load containing hopper of a railway car
US2853960A (en) * 1954-06-24 1958-09-30 J C Corrigan Company Inc Condensation-resistant car construction
US2859707A (en) * 1952-03-26 1958-11-11 Entpr Railway Equipment Co Hopper discharge outlet for railway cars
US2865319A (en) * 1954-10-07 1958-12-23 Internat Macgregor Organizatio Hatch-covers arrangements
US2915022A (en) * 1952-03-26 1959-12-01 Entpr Railway Equipment Co Hopper door operating mechanism for the discharge-outlet of railway hopper cars
US2989008A (en) * 1955-10-14 1961-06-20 Entpr Railway Equipment Co Resilient hopper-door type outlet construction
US2993452A (en) * 1957-03-28 1961-07-25 Entpr Railway Equipment Co Hopper car outlet construction
US3066618A (en) * 1959-08-07 1962-12-04 Entpr Railway Equipment Co Sliding closure operating mechanism for hopper outlet
US3082706A (en) * 1959-07-28 1963-03-26 Entpr Railway Equipment Co Sliding hopper discharge outlet closure actuating mechanism
US3082703A (en) * 1958-06-06 1963-03-26 Entpr Railway Equipment Co Sliding closure outlet frame assembly
US3085517A (en) * 1957-11-08 1963-04-16 Jay R Sheesley Sliding hopper closure discharging assembly
US3109388A (en) * 1958-12-30 1963-11-05 Entpr Railway Equipment Co Sliding closure discharge outlet assembly for a hopper
US3130687A (en) * 1956-02-02 1964-04-28 Jay R Sheesley Hopper discharge outlet closure assembly
US3138116A (en) * 1960-12-09 1964-06-23 Entpr Railway Equipment Co Sliding hopper closure outlet assembly
US3170413A (en) * 1962-01-05 1965-02-23 Entpr Railway Equipment Co Hopper outlet discharge structure
US3255714A (en) * 1962-12-03 1966-06-14 Entpr Railway Equipment Co Hopper gate discharge assembly with sealing gasket
US3630154A (en) * 1969-09-22 1971-12-28 Pullman Inc Rack-and-pinion-actuated railway hopper car gate
US3683820A (en) * 1970-09-01 1972-08-15 Midland Ross Corp Automatic hopper gate lock
US3742865A (en) * 1971-06-21 1973-07-03 Pullman Transport Leasing Co Hopper discharge gate actuating mechanism
US3845726A (en) * 1974-01-11 1974-11-05 Evans Prod Co Rack and pinion hopper gate actuating mechanism
US4094254A (en) * 1976-12-27 1978-06-13 Koranda Clarence J Lock for railway hopper car gate railway car gate lock
US4149470A (en) * 1977-08-09 1979-04-17 Wesco Truck & Trailer Sales Hopper gate
US4253400A (en) * 1979-06-14 1981-03-03 Miner Enterprises, Inc. Railway hopper car sliding gate closing mechanism
EP0092008A1 (en) * 1982-04-14 1983-10-26 Fabricated Metals, Inc. Container with butterfly valve
US4528913A (en) * 1982-10-07 1985-07-16 Acf Industries, Incorporated Gravity outlet sliding gate seal
US4765517A (en) * 1985-12-09 1988-08-23 Pullman Rail Leasing, Inc. Valve arrangement with retainer bracket, for hopper car outlet gate
US20030226815A1 (en) * 2002-05-31 2003-12-11 Gaunt Bruce William Expandable shelf
WO2005064236A1 (en) * 2003-12-29 2005-07-14 E.E.R. Environmental Energy Resources (Israel) Ltd. Inlet valve

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741192A (en) * 1948-08-20 1956-04-10 Entpr Railway Equipment Co Sliding closure for discharge outlet
US2630768A (en) * 1948-08-20 1953-03-10 Entpr Railway Equipment Co Load discharging car
US2646006A (en) * 1948-12-24 1953-07-21 Entpr Railway Equipment Co Discharge outlet and closure assembly
US2644408A (en) * 1949-04-09 1953-07-07 Entpr Railway Equipment Co Gate closing and locking mechanism for discharge outlets of car hoppers
US2638060A (en) * 1949-06-29 1953-05-12 Entpr Railway Equipment Co Discharge outlet for railway cars
US2628574A (en) * 1949-08-24 1953-02-17 Entpr Railway Equipment Co Head for gate operating mechanism for hopper cars
US2640440A (en) * 1949-11-18 1953-06-02 Entpr Railway Equipment Co Closure for hopper of hopper type railway cars
US2738735A (en) * 1951-08-14 1956-03-20 Entpr Railway Equipment Co Discharge outlet assembly for a hopper
US2791973A (en) * 1952-01-04 1957-05-14 Entpr Railway Equipment Co Operating mechanism for sliding gate for a discharge outlet mounted on a load containing hopper of a railway car
US2657661A (en) * 1952-01-14 1953-11-03 United Fruit Co Insulating hatchcover with inflatable gasket
US2915022A (en) * 1952-03-26 1959-12-01 Entpr Railway Equipment Co Hopper door operating mechanism for the discharge-outlet of railway hopper cars
US2859707A (en) * 1952-03-26 1958-11-11 Entpr Railway Equipment Co Hopper discharge outlet for railway cars
US2738739A (en) * 1952-10-23 1956-03-20 Entpr Railway Equipment Co Railway car hopper outlet assembly
US2712290A (en) * 1953-12-14 1955-07-05 Entpr Railway Equipment Co Locking mechanism for sliding gate of load containing hopper
US2853960A (en) * 1954-06-24 1958-09-30 J C Corrigan Company Inc Condensation-resistant car construction
US2865319A (en) * 1954-10-07 1958-12-23 Internat Macgregor Organizatio Hatch-covers arrangements
US2989008A (en) * 1955-10-14 1961-06-20 Entpr Railway Equipment Co Resilient hopper-door type outlet construction
US3130687A (en) * 1956-02-02 1964-04-28 Jay R Sheesley Hopper discharge outlet closure assembly
US2993452A (en) * 1957-03-28 1961-07-25 Entpr Railway Equipment Co Hopper car outlet construction
US3085517A (en) * 1957-11-08 1963-04-16 Jay R Sheesley Sliding hopper closure discharging assembly
US3082703A (en) * 1958-06-06 1963-03-26 Entpr Railway Equipment Co Sliding closure outlet frame assembly
US3109388A (en) * 1958-12-30 1963-11-05 Entpr Railway Equipment Co Sliding closure discharge outlet assembly for a hopper
US3082706A (en) * 1959-07-28 1963-03-26 Entpr Railway Equipment Co Sliding hopper discharge outlet closure actuating mechanism
US3066618A (en) * 1959-08-07 1962-12-04 Entpr Railway Equipment Co Sliding closure operating mechanism for hopper outlet
US3138116A (en) * 1960-12-09 1964-06-23 Entpr Railway Equipment Co Sliding hopper closure outlet assembly
US3170413A (en) * 1962-01-05 1965-02-23 Entpr Railway Equipment Co Hopper outlet discharge structure
US3255714A (en) * 1962-12-03 1966-06-14 Entpr Railway Equipment Co Hopper gate discharge assembly with sealing gasket
US3630154A (en) * 1969-09-22 1971-12-28 Pullman Inc Rack-and-pinion-actuated railway hopper car gate
US3683820A (en) * 1970-09-01 1972-08-15 Midland Ross Corp Automatic hopper gate lock
US3742865A (en) * 1971-06-21 1973-07-03 Pullman Transport Leasing Co Hopper discharge gate actuating mechanism
US3845726A (en) * 1974-01-11 1974-11-05 Evans Prod Co Rack and pinion hopper gate actuating mechanism
US4094254A (en) * 1976-12-27 1978-06-13 Koranda Clarence J Lock for railway hopper car gate railway car gate lock
US4149470A (en) * 1977-08-09 1979-04-17 Wesco Truck & Trailer Sales Hopper gate
US4253400A (en) * 1979-06-14 1981-03-03 Miner Enterprises, Inc. Railway hopper car sliding gate closing mechanism
EP0092008A1 (en) * 1982-04-14 1983-10-26 Fabricated Metals, Inc. Container with butterfly valve
US4491253A (en) * 1982-04-14 1985-01-01 Fabricated Metals, Inc. Container with butterfly valve
US4528913A (en) * 1982-10-07 1985-07-16 Acf Industries, Incorporated Gravity outlet sliding gate seal
US4765517A (en) * 1985-12-09 1988-08-23 Pullman Rail Leasing, Inc. Valve arrangement with retainer bracket, for hopper car outlet gate
US7007614B2 (en) * 2002-05-31 2006-03-07 Rubbermaid Incorporated Expandable shelf
US20030226815A1 (en) * 2002-05-31 2003-12-11 Gaunt Bruce William Expandable shelf
WO2005064236A1 (en) * 2003-12-29 2005-07-14 E.E.R. Environmental Energy Resources (Israel) Ltd. Inlet valve

Similar Documents

Publication Publication Date Title
US3187684A (en) Rapid discharge hopper car
US3455253A (en) Multiple hopper door actuating mechanism
US1284111A (en) Drop-door construction.
US2950143A (en) Combination discharge outlet for hopper cars
US3636658A (en) House car plug door control mechanism
US1594863A (en) Tram-car equipment
US3872796A (en) Door operating mechanism
US375394A (en) Joseph steachan
US2141298A (en) Vehicle door construction
US2993452A (en) Hopper car outlet construction
US3468062A (en) Boxcar door control
US2241179A (en) Projection lamp
US1484764A (en) Actuating mechanism for coal dump cars
US2644408A (en) Gate closing and locking mechanism for discharge outlets of car hoppers
US2876504A (en) Retractible sliding door
USRE23814E (en) Drop end gondola car
US2612659A (en) Door for refrigerator cars
US2386702A (en) Hopper discharge
US2150271A (en) Refrigerator car door
US1676992A (en) Drawer mount
US1964316A (en) Sliding and folding partition
US1623303A (en) Richard w
US1733905A (en) All-steel gbavel box
US719868A (en) Hopper-bottom car.
US4207020A (en) Hopper car door latching arrangment