Page:Popular Science Monthly Volume 92.djvu/271

 Popular Science MontJily

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��Little Winston-Salem Is Our Biggest Tobacco Center

ALTHOUGH two hundred . miles from the seaboard in North Carolina, Winston-Salem, a dual city of seventeen thou- sand inhabitants, has been desig- nated as a port of entry by the customs officials, because its im- ports of sugar, licorice and tobacco are enormous. Since 1910 the manufacture of to- br,cco products has increased more than three hundred and seventy per cent. Indeed, it is believed that Winston-Salem now leads St. Louis as the chief tobacco manufactur- ing city in the United States. Eight days after the Government had given Winston-Salem a $250,000 post-office building, the city had paid for it in tobacco revenues.

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��Skating Along a Railroad Track

HOW would you like to skate along a railroad track? You can do it now, thanks to an invention of Dwight B. McNamee, of Heman, Oklahoma.

Mr. McNamee has devised a skate for use along trackways. The four wheels of the skate are provided with hubs which engage with the top of a rail, and with rounded flanges which hold the w^heels to the track.

You must use a supporting rod with this skate. The rod has a short, straight handle, from which it curves forward and sideways so that the roller at its end along the opposite rail, roller also is provided flanges.

Keep the balancing rod ahead of you and you will not be in any danger of falling for- ward as you propel yourself along with your free foot.

���The longitudinal shaft drives two vertical screw - hoists, one at each end

��The body is here shown in its elevated position. It has small side chutes

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��This Trailer Ele- vates Its Own Body

DIFFERING from previous forms of elevating trailer bodies, raised and lowered by means of hydraulic, pneumatic or mechanical means operated from the pow'er of the pulling vehicle, the arrangement shown in the accompanying views does not require the truck to stand idle during the loading and unloading periods. Instead, its body can be ele- vated seven feet in less than one minute by means of a small one-cylinder, air-cooled gasoline engine carried on the trailer itself. This elevating ap- paratus raises the body by means of a longitudinal shaft driv- ing two vertical screw hoists, one at each end.

The body is de- signed for carrying coal, earth, sand, gravel or other bulk mate rial. Quick unloading results in maxi- mum efficiency.

��The skate nins'along the raiiroaa track. The balancing rod is held ahead of the skater

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