Method of converting a hopper type of rail car to accept a wider

Details Method of converting a hopper type of rail car to accept a wider Method of converting a hopper type of rail car to accept a wider

1986-10-17

1987-09-29

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Converting

29418, 294264, B21K 712

Patent

active

046960880

ABSTRACT:
Method of converting a hopper type of rail car to accept a wider outlet gate permits existing cars which are in over-supply to be made useful. The method requires that the opposed pairs of side slope sheets of the original car, and the opposed pairs of center and end slope sheets which are joined to them to form the bottom portions of the hoppers, be cut apart. One of the pairs of slope sheets then has its width reduced at its lower end portion while the lower end portions of the other pair of slope sheets are cut away and replaced by new slope sheet portions which are of greater width than the original portions. After the mounting flanges for the original outlet gates are removed, new mounting flanges which are wider in one direction and narrower in the other, are located in a predetermined fixed position relative to the frame of the car, preferably by an assembly jig which is temporarily clamped to the car frame. The pair of slope sheets which had its width reduced is then bent outwardly into contact with the mounting flange. The new pair of slope sheet portions is then welded into position relative to the hoppers and the pair of slope sheets whose width was reduced. To relieve stress in the slope sheets which are bent outwardly, the seam about which they are bent relative to the hoppers is heated.

REFERENCES:
patent: 2591924 (1952-04-01), Dorey
patent: 2669015 (1954-02-01), Schanz
patent: 4484528 (1984-11-01), Anderson et al.

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