. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 4-inchbelt, furnishing a run of 320 revolutionsper minute. The variable speed motor. 48-INCH \R WHEEL BORER. erator failing to throw out the pneumatic crane is also readily con-trolled by a suitable valve within easyreach of the operator. It may be added that there is also avariety in the driving appliances. The beltdrive is by a two-speed countershaft andthree-step cone for a 4-inch belt. diameter of the cone is 26inches and the minimum 18 Indies. Thecountershaft p
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 4-inchbelt, furnishing a run of 320 revolutionsper minute. The variable speed motor. 48-INCH \R WHEEL BORER. erator failing to throw out the pneumatic crane is also readily con-trolled by a suitable valve within easyreach of the operator. It may be added that there is also avariety in the driving appliances. The beltdrive is by a two-speed countershaft andthree-step cone for a 4-inch belt. diameter of the cone is 26inches and the minimum 18 Indies. Thecountershaft pulleys are 20 inches in di-ameter, and run at speeds of 225 and 270 drive is by a 15-horsepower motor, 3 to1 variable speed. When the drum typecrane is furnished, it is operated by a 3-horsepower speed motor. The ground space occupied by the ma-chine is 10 feet in length, width 10 feet,while the extreme height is 11 feet. It isscarcely necessary to add that the mate-rials are of the best, and with the recentimprovements in high-speed tool steels,the output of these fine machines will notlikely be surpassed in our time. April, 1916. RAILWAY AND LOCOMOTIVE ENGINEERING. 135 Filling o
Size: 1473px × 1697px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
