Factory and industrial management . 1 STEEL REVOLVING-BOOM EXCAVATOR READY FOR WORK, BATON ROUGE, LA. Weighs about 50 tons, and operates a 2 cu. yd. bucket by an 80-ft. boom. Is designed to fill, empty, and return the bucket in 60 seconds. Cost, erected in place, nearly $9,000. Installed by Page & Schnable. The cut above shows a good example of a powerful revolvingderrick with an 80-foot boom with an excavating bucket, like aplough shovel, which is lowered from the end of the boom, and thenscrapes up the dirt by being drawn towards the derrick by means ofthe hoisting engine; when filled, the b
Factory and industrial management . 1 STEEL REVOLVING-BOOM EXCAVATOR READY FOR WORK, BATON ROUGE, LA. Weighs about 50 tons, and operates a 2 cu. yd. bucket by an 80-ft. boom. Is designed to fill, empty, and return the bucket in 60 seconds. Cost, erected in place, nearly $9,000. Installed by Page & Schnable. The cut above shows a good example of a powerful revolvingderrick with an 80-foot boom with an excavating bucket, like aplough shovel, which is lowered from the end of the boom, and thenscrapes up the dirt by being drawn towards the derrick by means ofthe hoisting engine; when filled, the bucket can be hoisted while the?derrick revolves so as to dump the load where desired. Locomotive cranes or traveling derricks are not best adapted 3f TUB EXGINEIiRING MAGAZINE. for (jiiick 1 railsfcrs covering- considerable distance, jjcing slow andcumbersome and tending- to interrupt workmen while passing; sowhere swift, long, and unim])C(le(l movement is necessary they makeway for the ganlr\- and ])ri(lge traveling LOCOMOTIVE CRANE FOR BUiLER-llUUsE CUAL-IIANDLING SYSTEM,, PUBLIC SERVICE CORPORATION OF NEW JERSEY. Unloads from barges and stores 10,000 tons on wharf; discharges into wide-trough chain, conveyor leading to boiler house. R. 11. Beaumont & Co. Gantry cranes are very useful in freight yards and like struc-tures where it is not advisable to raise the track and runway to thelevel of the bridge, doing away with the legs; but where this can bedone we have the three-motor electric traveling cranes now so famil-iar in stone yards and all manufacturing concerns where heavy loadshave to be handled quickly. These bridges can be built to spanalmost anything, from lo feet up to several hundred feet, thoughthere are very few of over 200 or 250-feet span on account of thegreat cost; in the case of a big dam or other structure, however,,the expense is justified. Obviously the legs of a gantry make it cost more than a plain-bridge of the same capacity if the cost of the
Size: 1900px × 1316px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
