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Guard Rails

A Guard Rail is a rail laid parallel with the running rails to hold wheels in correct alignment. Guard rails are most commonly used opposite a frog where they prevent derailments and protect the point of the frog.

Guard Rail

A.M.C. Design guard rails (shown above) are used with light rails in mines and industrial plants. They have the flares bend and the flanges removed, and are equipped with blocks and bolts for mounting onto the stock rails. American Mining Congress recommended lengths are 4'6" for No. 2, 2-1/2, and 3 frogs; 6'6" for No. 4, 5, and 6 frogs and 8'3" for No. 7 and No. 8 frogs. A 1-5/8" flangeway width is standard.

Guard Rail Dimensional Diagram

A.R.E.A. Design guard rails are planed and beveled, and are equipped with distinct end and separator blocks. These blocks come complete with bolts, nuts, spring washers, head locks and web washers. These guard rails are commonly used with single plates (either flat or shouldered) or twin tie plates (either flat or hook). The standard lengths, and quantities of blocks are single plates are given in the tables below.

AREA Design Plan 504-71 AREA Design Plan 504-89
Length Sepr. Block End Block Plates Length Sepr. Block End Block Plates
9'5" 1 2 7 13' 2 2 9
12'6" 2 2 9 16'6" 3 2 11
15'0" 2 2 10 20'0" 4 2 13
 

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