. American engineer and railroad journal . Tubes—Material Steel. Wire gauge, 125 mm. Number 346 Diameter i 2 ins. Length 16 ft. Heating Surface—Firebox 155 sq. ft. Tubes sq. ft. Total 3,038 sq. ft. Driving Wheels—Diameter outside 79 ins. Diameter of center 72 ins. Journals 9 x 12 ins. Engine Truck Wheels (Front)—Diameter 36^ ins. Journals 6 x 10 ins. Trailing Wheels—Diameter 54^ ins. Journals 8% x 12 ins. Wheel Base—Driving 6 ft. 10 Ins. Feeds and Drives. IX. BY C. W. OBERT. Another interesting variable-speed driving mechanism for aradial drill is illustrated in this article. The Mueller
. American engineer and railroad journal . Tubes—Material Steel. Wire gauge, 125 mm. Number 346 Diameter i 2 ins. Length 16 ft. Heating Surface—Firebox 155 sq. ft. Tubes sq. ft. Total 3,038 sq. ft. Driving Wheels—Diameter outside 79 ins. Diameter of center 72 ins. Journals 9 x 12 ins. Engine Truck Wheels (Front)—Diameter 36^ ins. Journals 6 x 10 ins. Trailing Wheels—Diameter 54^ ins. Journals 8% x 12 ins. Wheel Base—Driving 6 ft. 10 Ins. Feeds and Drives. IX. BY C. W. OBERT. Another interesting variable-speed driving mechanism for aradial drill is illustrated in this article. The Mueller MachineTool Company, Cincinnati, Ohio, have appreciated the im-portance of providing a wide range of speeds for the driveupon their drill, the result being the interesting variable-speed device described below. By means of this mechanismand the spindle back-gear^he operator of the Mueller radialhas at his command a range of 16 different speeds, all easilyobtainable. The new speed-box is illustrated in the engraving. Fig 44,. FK; 44.—VIEW OF THE SPEED BOX APPLIED IN CONJUNCTION WITHAN ELECTBIO DETVE TO THE MUEIXEB BADIAi DBUX.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
