Showing papers on "Rail freight transport published in 1990"

Highballing with flimsies: working under train orders on the espee's coast line

Abstract: In classic timetable and train-order territory, the study focuses on several dimensions of train dispatchers' work, viewed through the other end of the telescope, i.e., from the perspective of the dispatched train crewmembers and others in the field. The monograph, comprising a microethnographic case study, emphasizes the cognitive worktasks--including mental manipulations of changing information, logic of procedures, work interactions, and language used--on just one freight train trip. Railroaders' integrations and applications of circumstantially selected sets of operating rules for the movement of trains control the freight trip. More broadly, the study constitutes a railroad apprentice's instruction for and a layman's introduction to North American railroad operating work. Specifically, a demonstration of the safety-critical nature of the corpus of interrelated railroad operating rules provides the underlying framework of the case study. Fundamentally, a main track must not be occupied or fouled without authority, except under protection....but, in the rail world, what are the myriad possibilities of this rules foundation? Read on. The photos, unnecessary for an understanding of the study, could not be reproduced but their captions are included. The timetable for the Santa Barbara Subdivision of the Southern Pacific Transportation Company (Pacific Lines), which would be helpful, is also not reproduced. The full text of the study includes the body of all train orders and other on-paper directives from the train dispatcher.

Examing and repairing machinese and tools for the brake cylinderof freight train

Abstract: The utility model relates to an examining and repairing implement for brake cylinders of freight trains, which is especially used for repairing freight trains on railways. The examining and repairing implement for brake cylinders of freight trains is a mechanical type, comprising a trolley, a tool box and a maintenance implement. The utility model is characterized in that the maintenance implement is composed of a height-adjusting mechanism, a decomposing turnover mechanism, a pressing device and a locking spring device. The utility model has advantages of simple structure, small volume, light weight, convenient operation and easy maintenance. The utility model can work in space less than 1 meter + [3] under mine cars. Fittings of tool materials do not fall down in the whole work process. The utility model ensures quality of repairing and enhances efficiency of repairing.