...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7340717 | Method for providing enhanced dynamic system simulation capability outside the original modeling environment A method for generating a software model of a dynamic system takes as input a preliminary software model of the system. Normally, the preliminary software model is based on a system model that is generated by a system designer within a modeling environment. Generall... | 03/04/2008 |
| 5469941 | Automatic handbrake release system for a railroad car A system is presented for automatically releasing all handbrakes of a railroad freight car or passenger car system. Working from the main air brake pressure lines, a pressure switch is provided which trips once the air pressure for the separate air brake ... | 11/28/1995 |
| 5279395 | Railway car brake system An improved brake linkage system for a railway car, especially a hopper car, having an air cylinder actuated to move a cylinder lever. The cylinder lever is directly connected to a floating operating lever by a slack adjuster which can be made substantial... | 01/18/1994 |
| 4905795 | Handbrake operating linkage for multi-unit rail cars An improved single manual brake operating system for connecting the brake equipment of a plurality of wheeled railroad freight car trucks. The system provides for initial rapid takeup of slack in the linkages interconnecting the braking mechanisms for sev... | 03/06/1990 |
| 4805743 | Handbrake operating linkage for multi-unit rail cars An improved single manual brake operating system for connecting the brake equipment of a plurality of wheeled railroad freight car trucks. The system provides for initial rapid takeup of slack in the linkages interconnecting the braking mechanisms for sev... | 02/21/1989 |
| 4508197 | Handbrake system for railway car This disclosure relates to a handbrake system for a railway car, such as an articulated car, having at least first, second and third trucks, each truck having a handbrake mechanism. The system comprises a handbrake and a force distributor including an inp... | 04/02/1985 |
| 4489814 | Hand brake arrangement In accordance with the present invention, a hand brake assembly (300) is mounted adjacent one end of a first car or articulated unit (303). A force dividing assembly (306) is provided on the first car, which divides the applied hand brake into a first (31... | 12/25/1984 |
| 4479567 | Vertical railway car air brake system For application to railway cars having limited available transverse space for the brake system, a system of vertically extending brake levers and longitudinally extending brake rods is used to apply the air brake force to wheels located at opposite ends o... | 10/30/1984 |
| 4422532 | Hand brake mechanism including force dividing assembly A railroad car (12) has a set (B1) of brakes acting on wheels (W1) at one end of the car and a set (B2) of brakes acting on wheels (W2) at the opposite end of the car. A mechanism (38) for applying a brake force produced by operation of a hand brake (HB) ... | 12/27/1983 |
| 4346790 | Articulated car brake system A handbrake arrangement for railroad freight cars is disclosed that will connect a mechanical handbrake operating mechanism to the brake equipment (brake beams and brake shoes) on 2, 3, or more trucks on the same freight car. It is especially useful on ar... | 08/31/1982 |