. Railway mechanical engineer . l, 1921 R \ VJ Ml-. II W [( \l. ENGINEER 265 headlight are its weather tight and air tight construction;interchangeable straight and angle side number doors; im-proved latches which keep the doors intact under severevibration; 14-in. mirror glass reflectors giving the maximumillumination required by the Interstate Commerce Commis-sion; .1 new improved positive focusing device so constructed as to insure against breaking or bending of wires; and aspecially designed positive electrical contact block which, when once wired, stays wired. The Ampm headlight is re
. Railway mechanical engineer . l, 1921 R \ VJ Ml-. II W [( \l. ENGINEER 265 headlight are its weather tight and air tight construction;interchangeable straight and angle side number doors; im-proved latches which keep the doors intact under severevibration; 14-in. mirror glass reflectors giving the maximumillumination required by the Interstate Commerce Commis-sion; .1 new improved positive focusing device so constructed as to insure against breaking or bending of wires; and aspecially designed positive electrical contact block which, when once wired, stays wired. The Ampm headlight is readily fastened to the bracketon the smoke box door, or wherever it may be located, bymeans of four holts through the 1 Improvements in Twist Drill Grinder Till, original New Yankee twist drill grinder, as made bythe Wilmarth & Morman Co., Grand Rapids, Mich.,was an improvement over previous types because pre-liminary calipering was eliminated, and positioning of thedrill made entirely automatic. The only adjustment required. Fig. 1 — Method of Holding Long Straight Shank Drill was the setting of the tailstock for the various lengths ofdrills. This style of drill grinder, adapted to the grindingof straight shank drills only, remained standard with theWilmarth & Morman Co. until the advent of taper and col-lared shank drills made a special attachment recently improved New Yankee drill grinder is pro-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
