. Railway master mechanic [microform] . Fig. 6—Lennox Rotary Bevel Shear Operated byIndividual Motor. chines With direct motor drive, Figure 7, a furnaceflange in process of being beveled, the boiler head beingsuspended on,center by temporary angles. Mr. A. , F. B. M., Chicago Great Western Shops at Oel-wein, la., makes the following comparison of machineand hand work on locomotive sheets, the machine re-quiring one man at 23^ cts. an hour, with helper at17/^ cts. an hour. Machine. Hand. Dome head, 29 inch 8 min. 360 min. Crown sheet, 108x56 12 min. 540 min. Firebox side sheet, 108x70 1
. Railway master mechanic [microform] . Fig. 6—Lennox Rotary Bevel Shear Operated byIndividual Motor. chines With direct motor drive, Figure 7, a furnaceflange in process of being beveled, the boiler head beingsuspended on,center by temporary angles. Mr. A. , F. B. M., Chicago Great Western Shops at Oel-wein, la., makes the following comparison of machineand hand work on locomotive sheets, the machine re-quiring one man at 23^ cts. an hour, with helper at17/^ cts. an hour. Machine. Hand. Dome head, 29 inch 8 min. 360 min. Crown sheet, 108x56 12 min. 540 min. Firebox side sheet, 108x70 14 min. 600 min. Door sheet, 56x56 10 min. 420 min. Flue sheet, 56x71 11 min. - 570 min. Translated into hours the dome head takes 6, etc., byhand. The machine is 40 or 50 times as fast. The timelabor cost on the above sheets is about 40 cts. by ma-chine, against $10 by hand, or 1 to 25. Labor of han-dling is about the same by machine as by hand. On some work the planer can be superseded, and therotary shear is a much more convenient
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Keywords: ., bookcentury1800, bookdecade1890, bookidrailwaymaste, bookyear1895
