Part 24 (1/2)

The little cut in the upper corner represents a Pelton wheel drawn on the saiven an equal supply of water at the same pressure, would develop the saiant the other appears a mere toy

THE CREAM SEPARATOR

In 1864 Dened fro, Holstein, and Schleswig

The loss of the two last, the fairest and rievous The Danish king now ruled only over a land consisting largely of moor, marsh, and dunes, apparently worthless for any purpose But the Danes, with adle, this tiation ditches, and planted forest trees; and so gradually turned large tracts of what had been useless country into valuable possessions Agriculture being ave their attention to the i machinery of all kinds was introduced, nonethe fatty from the watery constituents of milk It would not be too ely responsible for the present prosperity of Denmark

[Illustration: FIG 191--Section of a Cream Separator]

How does it work? asks the reader Centrifugal force[37] is the governing principle To explain its application we append a sectional illustration (Fig 191) of Messrs Burmeister and Wain's hand-power separator, which enerally representative of this class ofis a cylindrical bowl, D, mounted on a shaft which can be revolved 5,000 ti-wheels and the screw thread chased on it near the bottom extremity

Milk flows froh tap A into a little distributer on the top of the separator, and fro to the bottoal force, finds an escape upwards through the holes _a a_, and clirid _e_, the surface of which is a series of pyramidical excrescences, and finally reaches the inner surface of the drum proper The velocity of rotation is so tremendous that the heavier portions of the milk--that is, the watery--croards the point furthest frohter fatty elements away froram the water is represented by small circles, the cream by small crosses

As more milk enters the drum it forces upwards what is already there

The cap of the drum has an inner jacket, F, which at the bottom _all but touches_ the side of the drum The distance between them is the merest slit; but the cream is deflected up outside F into space E, and escapes through a hole one-sixteenth of an inch in dia into space K and trickles out of spout B, while the water flies into space H and trickles away through spout A

THE ”HYDRO,”

used in laundries for wringing clothes by centrifugal force, has a solid outer casing and an inner perforated cylindrical cage, revolved at high speed by a vertical shaft The wet clothes are placed in the cage, and the h the perforations and runs down the side of the casing to a drain After a few reat is the centrifugal force that they are consolidated against the sides of the cage, and care is needed in their removal

[35] Inventor of the lathe slide-rest

[36] Living germs; some varieties the cause of disease

[37] That is, centre-fleeing force Water dropped on a spinning top rushes towards the circules to a line drawn fro to the centre of the top

Chapter XIX

HEATING AND LIGHTING

The hot-water supply--The tank systeasworks--Autoas lighting

HOT-WATER SUPPLY

A well-equipped house is nowadays expected to contain efficient apparatus for supplying plenty of hot water at all hours of the day

There is little romance about the kitchen boiler and the pipes which the pluht, but the h the house are sufficiently ies