Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 6257150 | Rapid discharge railcar door A rapid discharge railcar door consisted of a plastic main body reinforced by an aluminum frame, and which provides sufficient strength against load-bearing forces and withstands changes in temperature. The main body of the door is made from a polymer in ... | 07/10/2001 |
| 5115748 | Hopper door and operating apparatus for a railway car A door and operating apparatus for railway hopper cars includes a door having a first pivot point for rotary attachment to the hopper. A second pivot point is formed on the door and a cross beam is positioned adjacent to the door for movement in a vertica... | 05/26/1992 |
| 5063858 | Covered hopper railway car with drop bottom doors and substantially vertical outlets to maximize discharge area A covered hopper railway car (10) for transporting difficult-to-unload ladings includes a pair of parallel, spaced apart side walls (12a, 12b) and opposed end walls (14a, 14b). A roof (16) covers the car and has an opening (18) therein for loading lading ... | 11/12/1991 |
| 5000358 | Low profile pneumatic outlet A low profile pneumatic outlet for a covered hopper railway car is disclosed which allows the bottom slope sheets of the hopper car to be moved downwardly closer to the rail thereby increasing the cubic capacity of the car while maintaining the car within... | 03/19/1991 |
| 4493266 | Railway hopper car and center sill construction therefor A railway hopper car has a through center sill including an elongated central section substantially A-shaped in transverse cross section, two end sections substantially hat-shaped in transverse cross section and two transition sections respectively connec... | 01/15/1985 |
| 4232989 | Cam actuated railway hopper car door operating mechanism A door operating mechanism for a bottom dump railway hopper car including a plurality of longitudinally mounted, divergently opening discharge doors held in the closed position by a plurality of longitudinally spaced claw-like latches. Each pair of transv... | 11/11/1980 |
| 4181336 | Hopper car cam lock door operating mechanism A door lock mechanism for hopper cars includes a longitudinally extending operating rod actuated by a linkage means tripped by a track side cam. The rod in turn actuates cam locks by means of bell cranks which cause the locks to rotate and release transve... | 01/01/1980 |
| 4138948 | Railway hopper car side door actuating mechanism A side dump railway hopper car with outwardly movable discharge doors includes a door operating mechanism including pivoted keeper engaging members adapted to be rotated between lock an open positions. The pivoted keeper engaging members are actuated by l... | 02/13/1979 |
| 3970526 | Closed tank coke car construction A coke oven discharge device for the closed discharge of coke from a horizontal row of coke ovens into a receiving bunker located alongside the ovens comprises a support frame which is mounted on an undercarriage for movement along a path alongside the ro... | 07/20/1976 |
