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A mobile woodworking shop
168
CURRENT TOPICS
[J. F, I.
Turner. Optical elements of binoculars, microscopes and many other optical products are now coated with anti-reflection films, some as thin as fourmillionths of an inch. The thickness of the film determines its reflecting quality. The company has prepared, for free distribution, a descriptive brochure on how to get the most out of them giving the characteristics of the new films and brief suggestions. Giant Safe--WiU Protect Precious Documents.--Three of Uncle Sam's most priceless documents will soon be put gently to bed every night in the world's largest safe, now being constructed by the Mosler Safe Company. Containing the most advanced safety features known to science, the unique safe will safeguard the irreplaceable original copies of the Bill of Rights, Declaration of Independence, and the Constitution of the United States. The giant safe, only one of its kind, will have a built-in elevator which will raise the documents every morning and lower them back into the safe every night. To make this possible, the unit's massive doors will be located on the top of the safe, which will be bomb, fire, burglary, and water-resistant. The world's largest safe, it will weigh 50 tons. Built in Mosler's Hamilton, Ohio plant, it is being installed far beneath a remodeled display shrine in the National Archives building in Washington, D. C. During the day, visitors will be able to inspect the three priceless original documents which will be displayed in a large glass showcase on the shrine. After visiting hours, the entire show-case with its contents will be lowered by a scissors-like elevator deep clown into the hidden safe. The safe's huge fiveton steel doors will automatically swing shut and lock as soon as the descending documents enter the giant safe. A mobile woodworking shop designed and placed in operation at the Long Beach Naval Shipyard greatly reduces time and expense involved in boat repair work, where problem has been transportation of individual machines to the work area, or carrying material to the woodworking shop. The shop consists of two units, each 5 by 14 feet, mounted on rubber-tired wheels, which can be towed to the work area. One unit carries bandsaw, jointer, table saw, drill press, overhead cut-off saw and belt sander, all connected to a central fuse box so that a 440-volt plug will activate the main switch. Second unit carries bench, vises, and necessary hardware and fittings in built-in drawers. Hydro-ski landing gears for seaplanes will enable future "ski-planes" to taxi right out of the water and onto the beach. Retracted hydro-ski gear will give seaplanes a landplane look, and small beaching wheels built into the ski will help perform the beaching trick. Navy, Air Force, NACA and various commercial concerns have been working on this development for several years; the Bureau of Aeronautics has now released a fact sheet describing the hydro-ski project from inception to recent demonstrations. Pictures of hydroski landings are also available. An Air-cooled Welding Torch designed at the Naval Engineering Experiment Station, Annapolis saves time in changing electrodes and makes it unnecessary to disconnect gas and power lines. The improved torch is small, light, constructed of insulating fiber and copper tubing; switch from electrode angle of 180 degrees to 105 degrees is quickly made by removing electrode holder, attaching angular tip to a simple threaded connection.
CURRENT TOPICS
[J. F, I.
Turner. Optical elements of binoculars, microscopes and many other optical products are now coated with anti-reflection films, some as thin as fourmillionths of an inch. The thickness of the film determines its reflecting quality. The company has prepared, for free distribution, a descriptive brochure on how to get the most out of them giving the characteristics of the new films and brief suggestions. Giant Safe--WiU Protect Precious Documents.--Three of Uncle Sam's most priceless documents will soon be put gently to bed every night in the world's largest safe, now being constructed by the Mosler Safe Company. Containing the most advanced safety features known to science, the unique safe will safeguard the irreplaceable original copies of the Bill of Rights, Declaration of Independence, and the Constitution of the United States. The giant safe, only one of its kind, will have a built-in elevator which will raise the documents every morning and lower them back into the safe every night. To make this possible, the unit's massive doors will be located on the top of the safe, which will be bomb, fire, burglary, and water-resistant. The world's largest safe, it will weigh 50 tons. Built in Mosler's Hamilton, Ohio plant, it is being installed far beneath a remodeled display shrine in the National Archives building in Washington, D. C. During the day, visitors will be able to inspect the three priceless original documents which will be displayed in a large glass showcase on the shrine. After visiting hours, the entire show-case with its contents will be lowered by a scissors-like elevator deep clown into the hidden safe. The safe's huge fiveton steel doors will automatically swing shut and lock as soon as the descending documents enter the giant safe. A mobile woodworking shop designed and placed in operation at the Long Beach Naval Shipyard greatly reduces time and expense involved in boat repair work, where problem has been transportation of individual machines to the work area, or carrying material to the woodworking shop. The shop consists of two units, each 5 by 14 feet, mounted on rubber-tired wheels, which can be towed to the work area. One unit carries bandsaw, jointer, table saw, drill press, overhead cut-off saw and belt sander, all connected to a central fuse box so that a 440-volt plug will activate the main switch. Second unit carries bench, vises, and necessary hardware and fittings in built-in drawers. Hydro-ski landing gears for seaplanes will enable future "ski-planes" to taxi right out of the water and onto the beach. Retracted hydro-ski gear will give seaplanes a landplane look, and small beaching wheels built into the ski will help perform the beaching trick. Navy, Air Force, NACA and various commercial concerns have been working on this development for several years; the Bureau of Aeronautics has now released a fact sheet describing the hydro-ski project from inception to recent demonstrations. Pictures of hydroski landings are also available. An Air-cooled Welding Torch designed at the Naval Engineering Experiment Station, Annapolis saves time in changing electrodes and makes it unnecessary to disconnect gas and power lines. The improved torch is small, light, constructed of insulating fiber and copper tubing; switch from electrode angle of 180 degrees to 105 degrees is quickly made by removing electrode holder, attaching angular tip to a simple threaded connection.