Page:Popular Science Monthly Volume 88.djvu/839

 Popular Science Monthly

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��An Ingenious Combined Lawn-Mower and Roller

FOR smoothing golf links and other large tracts of land that require constant trimming, a combination lawn- mower and roller has been invented. The driving apparatus consists of a two- cylinder gasoline motor mounted on a platform in front of the driver and cooled by a rapidly rotating electric fan and water system. The machine is both broad and rather long, so that it can climb over rough grounds with a speed that hand mowers and rollers could hardly attempt.

Combining the two operations of mowing and rolling saves a great deal of time, and, due to the speed with which the mechanism travels over the ground, lawns or golf links can be put into condi- tion and reoccupied in a fraction of the time required when the grass is mowed and rolled by hand.

The machine shown in the photograph weighs one thousand, one hundred pounds and is equipped with a sixteen- horsepower engine. It will operate on any grade up to twenty-five per cent.

By the simple manipulation of a lever, the driver can adjust the blades to cut any length of grass.

���If this egg were a watch-dial, an hour would have only fifty-five minutes

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���An Egg With Hour Ridges

E have heard of all sorts of freak eggs, from double ones to those having a few sporadic bumps on their surface, but never before have we seen one with ridges corresponding to the numerals on a clock dial. All that are needed are the hour and minute hands. There would be one differ- ence, however, between using this egg-dial and that of a regular clock: it would register thirteen o'clock.

��This lawn-mower and roller combined is able to smooth out

the wrinkles and trim the grass on golf links in half the

time usually required for such work

��Freezing Cocoanuts to Get at the Milk

A PENNSYLVANIA man has devised a means of removing cocoa- nut shells by freezing the nut until the shell is slightly contracted, and then sub- jecting it to a comparatively high temperature so as to cause rapid expansion. Cracks in the shell are thus produced. A series of ham- mer blows then completes the breaking of the shell.

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