THE IRRIGATION AGE. 



1,* 



to be used, need not, in the majority of cases, be con- 

 sidered, for usually the head is low. Pipe should be 

 just heavy enough to stand ordinary usage without 

 being damaged. 



The canvas hose should always be a little greater 

 in diameter than the metal pipe with which it is 

 used, in order that it can carry with ease the same vol- 

 ume of water. It should never be used under any con- 

 siderable head, as it can stand but little pressure with- 

 out leaking. The hose is made in 25- to 100-foot 

 lengths and is formed of one strip of canvas, the 

 width of which is- approximately three times the diame- 

 ter of the hose when sewed, allowance, of course, being 

 made for the seam, which is double lap and, as a rule, 

 machine sewed. Various weights of canvas are used, 

 good results being attained with either 10- or 12-ounce 

 duck. Many use a patented hose which has been treat- 

 ed with a preparation to make the duck impervious. 

 Others use the plain duck without treatment. The 

 plain duck, if carefully handled when in use and if not 

 left lying on the ground, where it will rapidly mildew, 

 when not in use, will last, as a rule, a season and a 

 half and probably two. The prepared hose, will, with the 

 same treatment and care, last two and two and one-half 



short hose used to connect metal pipe with the stand, 

 and also the shorter sections used as elbows, are similar 

 in construction to the longer sections, each having a 

 small and a large collar. 



The details of construction of one style of cement 

 stand are shown in Pig. 24, and in Plate V, Fig. 2, 

 the method of connecting the metal pipe with this form 

 of stand is illustrated. The right-angled elbow is 

 made in three sections and is cemented firmly into the 

 top of the stand. On either side of the horizonal sec- 

 tion of the elbow a %-inch threaded lug is riveted, as 

 shown. These two lugs extend about three inches 

 beyond the end of the elbow and are used to hold in 

 place a hexagonal-shaped board somewhat larger in 

 diameter than the end of the elbow, which, when the 

 stand is not in use, is placed over the opening and 

 there drawn snug by nuts, thus preventing overflow 

 from the stand. 



Where pipes are rightly constructed and properly 

 connected there is little leakage at joints. Where it is 

 necessary to carry water up grade less leakage will 

 occur if canvas hose is used, as there are fewer joints 

 and the hose adaptes itself to changes in direction bet- 

 ter than does the metal pipe. 



Common Method of Connecting Metal Pipe with Cement Stand. 



seasons, according to the amount of service and the 

 way in which it is taken care of. It is quite possible 

 to prolong the life of hose by giving it an occasional 

 coating inside and out of boiled linseed oil. Some- 

 times it is boiled in paraffin. This not only preserves 

 the fiber of the duck, but also adds to its impervious- 

 ness. Another treatment, which has been used with 

 success on smaller canvas hose in some sections of the 

 East, consists in saturating the. canvas with hot coal- 

 tar and linseed oil in the proportion of three or four 

 parts to one. The hose, after being saturated, is passed 

 through an ordinary clothes wringer and the excess 

 of tar and oil squeezed out. It is then allowed to dry 

 for several days before being used. 



The canvas hose is attached to the metal pipe or 

 other sections of hose by means of metal collars, which 

 are short sections of pipe (Fig. 26), around which the 

 canvas is bound with wire. At one end of the sec- 

 tion is a large collar, at the other a smaller one. The 



MEETING OF IRRIGATION COMMISSION. 



The irrigation commission of New Mexico was in 

 session at Santa Fe, N". M., recently. There were pres- 

 ent, G. A. Richardson, of Roswell, Arthur Selig- 

 man, of Santa Fe, secretary and treasurer; Charles 

 E. Miller, of Anthony, and Carl A. Dalies, of 

 Helen, members. A bill prepared by Mr. Rich- 

 ardson providing for the creation of the office of 

 irrigation engineer and of an irrigation commission to 

 have charge of irrigation matters in the Territory, 

 was laid before the members, carefully examined and 

 approved. It will be submitted to the assembly for 

 enactment. 



t**t************** *** *****"*********"****t*********t*********"******' 



Send $2.50 for The Irrigation Age 

 I year, and The Primer of Irrigation 



