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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Osborne Fire Finder ： ウィキペディア英語版 Osborne Fire Finder The Osborne Fire Finder is a type of alidade used by fire lookouts in order to find a directional bearing (azimuth) to smoke in order to alert fire crews to a wildland fire. ==History and development== The device was invented by William "W.B." Osborne, a United States Forest Service employee from Portland, Oregon, and has been in service since 1915. Mr. Osborne also designed the photo-recording transit for making panoramic records of forest conditions, as well as a collapsible water-bag knapsack for firefighting (U.S. patented in 1935). Many fire finders were manufactured from 1920 through 1935, but the manufacturer, Leupold & Stevens, Inc., stopped production of replacement parts after 1975. In recent years, with the resurgence and recovery of fire lookout towers, new Osborne devices were needed. The U.S. Forest Service, San Dimas Technology and Development Center (SDTDC) was contacted regarding the deteriorating condition of the Osborne Fire Finders housed in fire lookouts throughout the United States. A pilot program to create new Osbornes was coordinated with manufacturer, Palmquist Tooling, Inc. and now Osborne Fire Finders are available again. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Osborne Fire Finder」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.