. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 19. (20) A one-fourth globe valve. (21) A small-capacity one-fourth-inch spring cut- off with ways similar to the globe valve, (22) A one-fourth-inch steam cut-off of small capacity. (23) A one-fourth-inch leakless rod cut-off which is simple in construction, pos- itive in action, and of a practical size. of the liquid is not obstructed. The
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. Fig. 19. (20) A one-fourth globe valve. (21) A small-capacity one-fourth-inch spring cut- off with ways similar to the globe valve, (22) A one-fourth-inch steam cut-off of small capacity. (23) A one-fourth-inch leakless rod cut-off which is simple in construction, pos- itive in action, and of a practical size. of the liquid is not obstructed. The globe valve shown in Fig. 19 (20) has fair ca- pacity, but changes the direction of the flow of the liquid too often at very sharp angles, also it closes slowly and soon be- comes leaky; (21) has some similar faults, but serves the purpose better for small sprayers, as it acts quickly in cutting off the spray. The cut-off shown in (22) is of very small capacity and soon becomes leaky, A ball cut-off, which was tested for several seasons, did not prove en- tirely satisfactory, as it was a little clumsy and cumbersome. The gate valve cannot be closed quickly, although the ways are large. The leakless cut-off shown in (23) is simple, easily operated, and is positive in action. The ways are large, permitting the flow of the spray liquid without changing its direction, and if it becomes leaky, it is easily repacked. The use of this little accessory prevents, each season, the wasting of enough spraying mixture to pay for it many times. Spray Rods Exteijsion rods are necessary for spray- ing large trees, since most of the modern spray nozzles produce a fine mist spray which has very little carrying power. For small orchards a section of one- tourth-inch iron pipe serves the purpose very well, if the rods needed are not over six or eight feet in length. Longer lengths of one-fourth-inch iron pipe are hard to handle on account of their weight, and they often break off in the threads. R
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
