. The trackman's helper, a handbook for track foremen, supervisors and engineers . Fig. 45. Vaughan Rail Bender another car. The common tj^pe of curver consists of asemicircular steel yoke, a strap connecting the jaws ofthe yoke and a plunger between the yoke and the strap,whose position can be regulated by a threaded endwhich passes through the yoke and a nut abuttingagainst it. The curving is accomplished by the pres-sure upon the side of the rail of three wheels, two ofwhich are located at the intersections of the strap andthe yoke, and the third is carried by the plunger. The 234 THE TRACK
. The trackman's helper, a handbook for track foremen, supervisors and engineers . Fig. 45. Vaughan Rail Bender another car. The common tj^pe of curver consists of asemicircular steel yoke, a strap connecting the jaws ofthe yoke and a plunger between the yoke and the strap,whose position can be regulated by a threaded endwhich passes through the yoke and a nut abuttingagainst it. The curving is accomplished by the pres-sure upon the side of the rail of three wheels, two ofwhich are located at the intersections of the strap andthe yoke, and the third is carried by the plunger. The 234 THE TRACKMANS HELPER rails are pulled between tliese wheels, the amount ofcurve being regulated by the position of the plunger. With one of these machines, described in the Decem-ber 18, 1914 number of the Railway Age Gazette, itwas found that 20 rails per hour or 200 per day could. Fig. 46. Superior Reversible Rail Bender be curved at an expense of about $40 per day or $ a 33-ft. rail. The force required for operation waseight men and a foreman, assisted by a curving rails in very large quantities a more eco-nomical method would be to utilize a platform with a ELEVATION OF CURVES 235 Middle ordinates in inches for curving rails. Degree Radius Length of Rails in Feet of Curve in Feet 33 30 28 26 24 22 20 0° 30 11459. %2 Vs %2 5/64 1/16 %4: %4 1°00 5730. %2 V4. %6 %2 Vs Vs %2 1° 30 3820. 2%4 % %6 y* 7/b ?i6 5/^2 2° 00 2865. 3-/64 19b 1%2 11/32 1%4 74 1?64 2° 30 2292. 4%4 1%2 3%4 ■^16 % 21/^64 17/^4 3° 00 1910. 5%4 4%4 3%4 17/b 7/16 % 5/i6 3° 30 1637. 1 27/b 47/64 % 3%4 7^6 % 4° 00 1433. 1 %4 61/64 5%4 23^2 1%2 V2 27/64 4° 30 1274. 1 %2 1 I/16 5%4 51/64 43/^64 9/46 15/b 5° 00 1146. 127/64 1 %6 1 1/^2 57/64 % 41/^64 17/k 5 30 1042. 1 %6 11%4 1 Vs 6?^64 27/b 45/64 37^4 6° 00 12%2 113/b 1 7/32 1 I/16 2%2 4%4 % 6° 30 1 %
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Keywords: ., bookcentury1900, bookdecade1910, bookidtrackmanshel, bookyear1917
