. Dairy farming : being the theory, practice, and methods of dairying. Dairy farms; Dairy plants; Milk plants. Fig. 282.—Section op SELi'-llIiATtU \ AT. and smaller tuVs. Throug-h this cylinder passes a flue (1), at the month of which is fixed a small giate, in which is a fire to heat the water, and this ill its turn raises the temperature of the contents of the vat. The water is poured into the vacant space Ijctween the inner and ouler cases throno'h a hopper, and beiiinj heated, flows upwards and inwards aj^ainst the sides and bottom of the tin case, and returns to the flue in tlie manner sh
. Dairy farming : being the theory, practice, and methods of dairying. Dairy farms; Dairy plants; Milk plants. Fig. 282.—Section op SELi'-llIiATtU \ AT. and smaller tuVs. Throug-h this cylinder passes a flue (1), at the month of which is fixed a small giate, in which is a fire to heat the water, and this ill its turn raises the temperature of the contents of the vat. The water is poured into the vacant space Ijctween the inner and ouler cases throno'h a hopper, and beiiinj heated, flows upwards and inwards aj^ainst the sides and bottom of the tin case, and returns to the flue in tlie manner shown by the arrows in tl e illustration. The smoke finds ejifrpss throu(>-h a ]iipe at the other end of the vat. It is said of this apparatus that it distributes its heat uniformly and without the use of much fuel. In Figs. -283, 284, and 285 are given tions of a most useful combined milk-vat an 1 heater, such as may be used in either factories or farm-house dairies. The heater is constructed separately from the vat, and consists of wrought-iron pipes, screwed together in such a manner as to form a fire chamber, and present a large amount of heating surface directly exposed to the action of the fire. This coil of pipes is enclosed in brickwork, which as to distribute the heat equally. The lower pijie, the one that supplies the coil with water from the. Fig. 283.—Milk-vat and Heater. prevents loss of heat. A pan, or tank, rests on the top of the brickwork, and is connected to the coil in such a manner as to form a perfect circulation ; so that when the tank is filled with water, and a fire started, the water is warmed very rapidly. A flue is formed underneath the bottom of the tank, so that it receives the heat from the fire after it has passed the coil. The coil is also connected with the vat, and forms, with that, a perfect circulation. The upper pipe, the one that supplies the heat to the vat, branches off, and two smaller jiipes are connected to it, and thes
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