PULSE OF THE IRRIGATION INDUSTRY. 



193 



skips they can find nothing but uniformly broken 

 material to handle. 



The aerial dump (Fig. 7) has recently been devel- 

 oped which has increased the capacity of the cable- 

 way enormously. 



The auxiliary rope arranged to draw up the bucket 

 or skip is installed, passing from the carriage to the 

 engine, parallel to the hoist rope, and winds on the 

 same drum as the hoist rope. Therefore, when it is 

 desired to dump the load it is merely required to 

 draw in this rope at a little higher speed than the 



m 



' 



Fig. 7. Aerial Dump (Patented.) 



hoist rope, thus the material delivers without delay to 

 the cableway. The instant the load has been spilled 

 from the skip the carriage returns to the canal. For 

 obvious reasons, any authentic records are difficult to 

 obtain, but the following are understood to be correct. 

 The record for the month of October was 333 skips 

 daily. The greatest day's run was 656 skip loads of 

 broken stone, in 20 hours, making a total capacity of 

 1,312 yards, or 2,624 tons. 



Blocks of stone weighing 20 tons may be handled 

 with the cableway. The speed of the machine along 

 its tracks will probably be from 25 to 50 feet a min- 

 ute. The speed of the carriage upon the cable about 

 1,000 feet a minute, and the speed of hoisting from 

 300 to 400 feet a minute. It is more desirable than 

 derricks in many ways. First, the legs and guys of 

 the cableway are entirely out of the way of the work, 

 hence no preparations need be made for making a 

 blast, except it be the removing of the drills, etc., 

 which is done quickly and easily by means of the 

 cableway itself. Thus, not only is a saving made by 



virtue of the fact that nothing can be injured by the 

 blast, but the blasting can be done more economical- 

 ly, because it can be unlimited in extent. Three or 

 four thousand tons of material have been blown down 

 underneath a cableway without the slightest damage 

 to the apparatus. Again, the load after being hoisted 

 can be^conveyed to the car without any labor being 

 required, as is necessary with derricks in the swing- 

 ing of the boom. 



The following irrigation and water companies have 

 purchased Lidgerwood cableways for the construction 

 of dams: South Gila Canal Company, 1,500 foot span; 

 Aqua Fria Construction Company, 750 foot span; E. 

 S. Babcock, of the Coronado Beach Company, three 

 plants, about 1,000 foot span; Bear Valley Irrigation 

 Company, two plants; and Butte City Water Com- 

 pany, 900 foot span. 



WIND MILLS. 



The Challenge Wind Mill and Feed Mill Company, 

 of Batavia, Ills., of whose Dandy Steel Wind Mill we 

 give a cut here, and whose ad. appears on another 

 page of this issue, have been engaged in the manu- 

 facture of wind mills, feed mills and their appliances 

 for the past twenty-seven years, and in all that time 

 they have labored earnestly to produce the best arti- 

 cle of its kind on the market. 



The results are to be found embodied in their new 

 Dandy wind mill, which is constructed wholly of steel 

 and mounted on a steel tower. The whole construc- 

 tion is heavily galvanized in their own plant, which is 

 one of the largest in operation in any country devoted 

 solely to that purpose. This process, as applied by 

 the Challenge people, obviates the necessity of paint- 

 ing for at least twenty years. All the bearings or 

 wearing parts are composed of graphite, and the ma- 

 chines are therefore supposed to run for thirty years 

 without oil. 



As an evidence of this company's faith in their 

 machines, they will send them to all responsible par- 

 ties on a thirty days' test trial, and if not found en- 

 tirely satisfactory they will remove them and pay the 

 freight both ways. Their new steel towers are con- 

 structed of the strongest and best angle steel, and re- 

 cent past experience demonstrates the fact that they 

 will stand the most severe storms without even per- 

 ceptible injury. In addition to the articles named 

 this company also manufacture tanks, pumps, brass 

 cylinders and a general line of water supply goods, 

 together with the Challenge feed mills, horse powers, 

 feed cutters, etc., etc., and if you are in need of any 

 of these you should correspond with them at their 

 home office. 



GASOLINE ENGINES, 



The Weber Gas and Gasoline Engine Company, 

 of 426 S. W. Boulevard, Kansas City, Mo., have re- 

 cently completed a new addition to their plant, the 

 increased business of the company during the last 

 six months having made this necessary. The offices 

 will be removed from the second floor of the main 

 building to the new building, and will be on the street 

 floor. This will give about 3,000 square feet addi- 

 tional for light machine tools in the main building. 



