. Steam shovel mining, including a consideration of electric shovels and other power excavators in open-pit mining . ^ ^ ^ CO ,J ^ (N .-1 i-H T-H CM CM CM rH .H rH << 1oc c^ CO o 1 73■^ o ? b b b CO ^ ^ b b ^ b b b Tfl c3 to CO .-1 t-- oc CO C:5 03 ICI 00 rH rH CO ^ 00 (N 1-1 rH rH CM I—1 i—1 rH T-\ o 03 ^ ^ !? <z. CO CO C^ r-l i-H I—1 rH CM rH rH rH i—i 4 oo X. o-3 .2 +303 !-H +J o o3 o o .5 S ■-3 o3 CO_3 00 ^ ^ fjH bl Ph nj 3 o3 8 a a r^ s eg § |-^ 1 ^ ^ M ^ S c ^ = :s .s :S « £ a. ft 0)bC PQ g ^ =3 bC .s ac t .£ec i c 3 CS 0 o ;^ is «^ O hJ > Sh ;-!OO > at £ «+H > C is
. Steam shovel mining, including a consideration of electric shovels and other power excavators in open-pit mining . ^ ^ ^ CO ,J ^ (N .-1 i-H T-H CM CM CM rH .H rH << 1oc c^ CO o 1 73■^ o ? b b b CO ^ ^ b b ^ b b b Tfl c3 to CO .-1 t-- oc CO C:5 03 ICI 00 rH rH CO ^ 00 (N 1-1 rH rH CM I—1 i—1 rH T-\ o 03 ^ ^ !? <z. CO CO C^ r-l i-H I—1 rH CM rH rH rH i—i 4 oo X. o-3 .2 +303 !-H +J o o3 o o .5 S ■-3 o3 CO_3 00 ^ ^ fjH bl Ph nj 3 o3 8 a a r^ s eg § |-^ 1 ^ ^ M ^ S c ^ = :s .s :S « £ a. ft 0)bC PQ g ^ =3 bC .s ac t .£ec i c 3 CS 0 o ;^ is «^ O hJ > Sh ;-!OO > at £ «+H > C is o 73 C £ occ pqo -|H 73 bl CC o 73 co£ -2 0. £ s O OJ o: ^ £ 73 < ■&, c Z (V a 1 1 -< PQ O 1—( q H P:^ U W ^ i-s a a < 1 THE POWER SHOVEL 21. Table 5.—Table of Dimensions—Large Revolving Shovels Effective pull on dipper, pounds Capacity of dipper Length of boom Length of dipper handle Length of revolving frame Width over sub-base Distance C to C of trucks Locomotive boiler Water tank capacity, Main engines, double Swing engines, double Thrust engines, double Approx. net shipping weight, pounds Approx. working weight, pounds 150-B 43000 2M yd. 60 38 37 3 22 20 X 17 58 X 15 1460 10 X 12 8 X 8 7M X 7 248,000316,000 175-B 60000 W2 yd. 75 48 40 5M 28 2 24 X 24 64 X 15 10 2500 12 X 15 9 X 9 83^ X 8 363,000428,000 225-B 77500 6 yd. 80 58 48 8 338 30 X 30 76 X 18 300014 X 1610 X 1010 X 10 521,000624,000 22 STEAM SHOVEL MINING
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
