Page:Popular Science Monthly Volume 92.djvu/766

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��Popular Science Monthly

���This brick -conveyor is worked on a similar principle to the familiar cash-conveyor of the department stores

��to the drying shelves ex- tending over the yards.

The mechanism is so simple that it cannot easily get out of order. It re- quires but little attention and practically eliminates the necessity of employing wheelers and truckers, who are generally considered the most uncertain and annoy- ing labor in the yard.

In these present topsy- turvey times, when men have to be done without and women have to step more and more into the men's shoes, labor-saving machinery of this kind as- sumes an importance that it never did in the piping times of peace.

��Brick Manufacturers Find This a Great Labor Saver

THE conveyor system illustrated in the pictures has been installed in many brick-yards in various parts of the country, and, as the owners of the yards willingly testify, has proved a valuable labor-saver. It is estimated that for a yard with a capacity of about 50,000 bricks the installation of this conveyor would mean a saving of four or five men. The system is simple and, in a general way follows the idea of the cash and parcel conveyors used in many department stores. Two endless wire cables, running parallel and supported by grooved wheels form the basis of the conveyor. The cables are stretched taut so as to support the conveyor planks and the bricks placed upon them. The tension of the ca- bles can be regulated by a screw. By an in- genious switch arrange- ment proi'ision is made for the turning of cor- ners by the conveyor planks loaded with bricks and for the dis- Aluminum case

tribution of the Vjricks in airplane fla

��Protecting the Aviator's Camera Bellows from the Wind

TAKING photographs from an air- plane with an ordinary folding pocket camera is utterly impossible if the leather bellows is not protected from the wind, as the aviators are exposed to the terrific draft created by the revolving blades. Add to this the breeze created by the machine flying along at A^ ninety or one hundred miles an

/v^^v hour and you can see why, if an ordinary folding camera is un- folded in an airplane, the wind immediately flattens the leather bellows.

To overcome this diffi- culty and to be able to procure a series of aero- nautical photographs John Edwin Hogg, of Los Angeles, California, constructed the alu- minum bellows shield illustrated. It worked . perfectly, and with it he procured the photo- graphs desired. The shield weighs four ounces, and when folded can be carried in the prevents wind coat pocket. It may be

ttening bellows very quickly adjusted.

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