The California fruits and how to grow them; a manual of methods which have yielded greatest success, with the lists of varieties best adapted to the different districts of the state . heconstruction of continuous cement pipe, which is replacing open lateralsin carrying water from main ditches to the land of individual pipe is made by a machine constructed by two Riverside men whoare both machinists and practical orchardists. Sand and barrels ofcement are distributed along the line ahead of the machine, as shownin the background of the picture. The mixing is done in flat boxes,
The California fruits and how to grow them; a manual of methods which have yielded greatest success, with the lists of varieties best adapted to the different districts of the state . heconstruction of continuous cement pipe, which is replacing open lateralsin carrying water from main ditches to the land of individual pipe is made by a machine constructed by two Riverside men whoare both machinists and practical orchardists. Sand and barrels ofcement are distributed along the line ahead of the machine, as shownin the background of the picture. The mixing is done in flat boxes, 202 CALIFORNIA FRUITS : HOW TO GROW THEM each being carried forward when emptied. One of the Hnes of largerubber hose conveys steam to the head of the cyhnder of the machineand the other returns the spent steam. The mixed cement and sandis carried to the feeding box (shown in vertical position in the trench),from which it is dropped into the steel pipe form below. Steam pres-sure is then brought to bear upon it and then cut off by the lever;loose earth is thrown around the steel forming-cylinder as it movesforward and is firmed by the operators feet, ready to sustain the walls. Continuous cement flume with weirs to raise water to outlet tubes. of the new pipe as the cylinder is withdrawn from it. More looseearth is thrown over the new pipe, which is allowed to harden beforethe trench is filled. Continuous cement flume is made in a similar manner, the machineworking on the surface and the required pressure being given by astrong lever instead of by steam power. Instead of a cylindrical form,one to properly shape the flume is used. After this form is moved andbefore the cement hardens, grooves are made at intervals in the sidewalls to insert board dams to raise the water so that it will flow outof zinc tubes with gates, which are also put in place while the cementis plastic. Not only is such flume sometimes cheaper than board flumes,as stated above, but annoyance of leaking and c
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Keywords: ., bookcentury1900, bookdecad, booksubjectfruitculture, bookyear1912
