Page:Popular Science Monthly Volume 91.djvu/253

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Popular Science Monthly

��237

��The Policeman and the Fainting Lady

WASHINGTON police, experienced in hand- ling big crowds at presidential inaugurations and other cele- brations in the national Capi- tal, recently set about to find a way to revive persons who have fainted on the street without having to call an ambulance and send them to a hospital. Now every mem- ber of the force when on duty in crowds carries in his pocket a pill-box full of tiny glass tubes of aromatic spirits of ammonia. The tubes are about an inch long and slightly more than an eighth of an inch in diameter. Each has a wrapping of absorbent cotton and over this a silk gauze covering. Slight pressure between the fingers is sufficient to break the tube. The ammonia is promptly absorbed by the cotton about it, which also serves to prevent the sharp particles of glass from doing any harm. Held beneath the nose of the person who has fainted, the fumes of the ammonia soon revive him. The tubes are stored in all the patrol boxes about the city and are carried in patrol wagons and police ambulances.

����Reviving a fainting person with aromatic ammonia carried in tiny tubes, as in circle

��The conveyer reaches eighteen feet into the box car and piles the coal in the far end of the car without breaking it

��A Conveyer Which Loads Coal in Box Cars Without Breakage

IT is difficult enough to bring coal to the surface, but marketing it in good-sized lumps is a still harder problem. If the coal leaves the mine in large lumps and is delivered in small lumps, having been broken in freight cars on the trip, it suffers a depreciation in price of about thirty per cent. This is one of the discouraging factors that the shippers of -coal have had to contend with for years.

Box-car loaders of various

kinds have been used with little

success. Mechanical shovelers

disposed of the coal in short

order, but they broke it badly.

Now comes the conveyer type

of loader, designed to load the

coal without breakage. It does

not throw the product it is loading

but carries it to the end of the car,

as shown in the illustration. It reaches

eighteen feet into the car, fifty per cent

further than any other make of loader.

The conveyer is supported on two arms hinged from a post in such a manner as to, be easily moved into a box car by hand. The chute is on the lower side of the car and follows the loader in all positions. At the receiving end of the belt loader is a de- flector which turns the coal as it comes from the chute in the direction of the con- veyer, thereby reducing the breakage. The conveyer is tilted by turning a crank.

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