THE IRKIGATION AGE. 



187 



Labor, 2.600 ft. at .15 S 390.00 



( \-ment. 270 barrels at $3.50 1,295.00 



Sand 100.00 



Gasoline. 870 gallons at .22 191.40 



Wire, 5,200 ft., 6-ft. at .04 208.00 



AYire, 2,600 ft.. 4-ft. at .03 78.00 



Superintendence 150.00 



Incidentals . 100.00 



Cost of 2/.00 feet 2,512.40 



"\Ye are constructing two new ditches, Haiku 

 and Kauikoa, ten and 4y 2 miles long. These are 

 both practically all tunnels, ranging from 800 to 

 3,000 feet. We expect to cement-gun all possible. 

 In some places where we have had cave-ins during 

 construction or where the material looks dangerous, 

 we will concrete both sides and roof. There will 

 also be places where there is so much water coming 

 in that a mortar will be insufficient and concrete 

 will be used." 



Before giving here a description of this work 

 and going into details of the construction of the 

 lining, its reinforcement and other items, it will be 

 advisable to precede it with a short paragraph ex- 

 plaining the Cement-Gun and the characteristics of 

 its work. 



Fig. 1 gives a view of the gun, while Fig. 2 

 shows the constructional details of the same. It is 

 operated with compressed air, and for canal linings 

 where the machine has to be moved frequently, a 

 portable gasoline driven air compressor is used to 

 best advantage. Other kinds of air compressors 

 can be used. However, it is desirable to have the 

 whole outfit mounted on trucks to facilitate easv 



moving. Another good combination is a belted 

 air compressor driven by a steam tractor, which 

 can be used for plowing, threshing and other agri- 

 cultural work when not in use for the Cement-Gun. 

 The air compressor can also be employed for pump- 

 ing, etc. Required for Cement-Gun work is an air 

 compressor giving from 160 to 250 feet of free air 

 per minute at a pressure of about 40 pounds per 

 square inch. The working capacity of the Cement- 

 Gun increases in proportion to the amount of air 

 available for its operation. 



The Cement-Gun is connected with the com- 

 pressor by a hose line usually about 1% inches in 

 diameter. The distance between compressor and 

 gun is immaterial, and may vary from 50 to 500 

 feet and even more. It is not advisable to have 

 the gun placed too close, in order to prevent cement, 

 sand and dust being blown into the machinery. 



The gun consists of two superimposed conical 

 tanks. The lower tank feeds the material hose and 

 is under constant air pressure. The upper one is 

 the charging tank and acts like an air lock in a 

 caisson. It is alternately put under pressure, and 

 enables continuous uninterrupted operation of the 

 machine. 



In the bottom of the lower tank there is a hori- 

 zontal feed wheel with a series of pockets on its 

 outer rim. This feed wheel is driven by a small 

 air motor and revolves horizontally. As it moves it 

 carries the material in small measured charges into 

 the stream of air, which again conveys it through 

 the material hose and blows it through the mixing 

 nozzle to its place of deposit. 



(To lie continued.) 



HULL YOUR SEED QUICKLY, PERFECTLY and ECONOMICALLY With a 

 "MATCHLESS" CLOVER and ALFALFA HULLER 



That's just what you will do if you use a "Matchless" Huller on the job. It's the one huller that will hull all the Clover or Alfalfa you 

 can get to it without sacrificing the quality of the work. Here's the reason! We use square steel brads in our hulling cylinder. This construction 

 has every advantage over rasps of spikes, because no set of spikes will knock the seed out of the damp pods Rasps gum up and are easily destroyed . 

 Our system of separation is unique and effective. This consists of a series of rotating troughs with perforation in the bottom, with provision for 

 adjustment to meet the various conditions of clover. The Patented Steel Scrapers attached to the bottom of these troughs thoroughly scrape the 

 separa*or bottom and insure a steady and positive delivery of the pods to the hulling cylinder, regaidless of the condition of the clover. This con- 

 struction enables you to hull seed under conditions in which no other huller can operate; enables you to hull earlier in the morning and later in the 

 evening than with any other this insures a longer day, thus increasing your earning power. Give us an opportunity to piove to you right 

 on your own farm that the "Matchless" is the speediest and cleanest huller on tae market. WRITE FOR CATALOG TODAY, or call at our nearest 

 Branch House. 



MANSFIELD, OHIO. 



THE AULTMAN & TAYLOR MACHINERY COMPANY, 



Sole Builders of Aultman-Taylor "Starved Rooster" Line of Machinery. 

 BRANCHES: Minneapolis. Minn.; Portland, Ore.; Lincoln. Nebr.; Kansas City. Mo,; Wichita, Kan.; Decatur, III.; Indianapolis, Ind. 



\Yhen writing to advertisers please mention The Irrigation Age. 



