Mechanics for young America; how to build boats, water motors, wind mills, searchlight, electric burglar alarm, ice boat ..etc.; the directions are plain and completeReprinted from Popular mechanics . through the rear shaft. The shaft is pivotedas in a hand-propelled cart, and the rod Iextends from the middle connection of theshaft up to a point where the person seatedon the wooden frame can handle it. Thereis a brake arranged by making a loopedpiece J and hinging it as shown. This pieceis metal, fitted with a leather face. Thecord K is pulled to press the brake. I marksthe support for the mas


Mechanics for young America; how to build boats, water motors, wind mills, searchlight, electric burglar alarm, ice boat ..etc.; the directions are plain and completeReprinted from Popular mechanics . through the rear shaft. The shaft is pivotedas in a hand-propelled cart, and the rod Iextends from the middle connection of theshaft up to a point where the person seatedon the wooden frame can handle it. Thereis a brake arranged by making a loopedpiece J and hinging it as shown. This pieceis metal, fitted with a leather face. Thecord K is pulled to press the brake. I marksthe support for the mast underneath thebody of the cart. In a steady breeze thiscart spins nicely along the roads. •» • ?»—i TO HANG HEAVY THINGS ON A NAIL. Boys will find many places around thehouse, where a hookto hang things onwill be a great con-venience. Instead ofbuying hooks use wirenails, and if driven asshown in the cut, theywill support very heavyweights. Drive thelower nail 6u POPULAR MECHANICS. PHotograpHing From a Captive Balloon Within the Reach of Every Photographer, Amateur or Profes-sional—Expense no Longer an Obstacle. It is quite possible to take photographsfrom a captive balloon so small that theexperiment is robbed of almost all of its expense andthe apparatusis convenientto its owneron any fairday he maywish to use balloonneed not be ofmore than 500cubic feet ca-pacity (simplylarge enoughto carry thecamera andlight attach-ments) andmay be inflat-ed by runninga tube fromthe ordinaryhousehold gasmeter to balloon should be spherical in shapeand made of some very light material ofclose texture. Light silk is one of the bestmaterials for the purpose. Stitch the goreswell together with strong, fine silk and coatthe balloon with linseed oil varnish—a verythick coat. The neck of the balloon where


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Keywords: ., bookcentury1900, bookdecade1900, bookp, booksubjectindustrialarts