Insect pests of farm, garden and orchard . .-Compressed- New type of compressetl-air s])raycr with air sprayer with separate pump, (E. C. Brown Co.) section of tankremoved to showair pump witliin. 1. The pump should be guaranteed to furnish four nozzlesat SO to 100 pounds i)ressure with ordinary pumping. 2. It should have a large air chamber within the barrel, andnot ])rojecting above it. 3. As few of the working parts of the pump as possible shouldbe above the head of the barrel, as exposed parts are. easilybroken. 4. The cylinder, plunger, valves and woiking parts should be ofbrass. The hand
Insect pests of farm, garden and orchard . .-Compressed- New type of compressetl-air s])raycr with air sprayer with separate pump, (E. C. Brown Co.) section of tankremoved to showair pump witliin. 1. The pump should be guaranteed to furnish four nozzlesat SO to 100 pounds i)ressure with ordinary pumping. 2. It should have a large air chamber within the barrel, andnot ])rojecting above it. 3. As few of the working parts of the pump as possible shouldbe above the head of the barrel, as exposed parts are. easilybroken. 4. The cylinder, plunger, valves and woiking parts should be ofbrass. The handles and other parts commonly made of cast ironare much more durable when made of malleable or galvanized iron. SPRAYING AND DUSTING APPARATUS (55 5. There should be a good mechanical agitator of the paddletype, preferably arranged so that it can be worked with thepump handle without operating the pump. An agitator isessential to keeping the mixture in suspension. Agitators of theso-called jet-type, in which a stream from the bottom of the. Fig. 33.—An undesirable type of Fig. 34.—A desirable type of barrel barrel sprayer—now off themarket; the air-chamber andother parts above the barrelrender it top-heavy, and maybe easily broken. pump eml)odying most of thefeatures described. (Morrill &Morley.) cylinder is supposed to agitate the liquid, are unsatisfactoiyand allow a loss of pressure without sufficiently agitating theli(iuid. 6. The pump should be so attached to the barrel that it canbe quickly removed for repairs. Those pumps which have lugsfor attaching the pump plate to the barrel are much better thanthose with screws. GG INSECT PESTS OF FARM, GARDEN AND ORCHARD
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcet, bookyear1912
