婷婷激情四射网_国产日韩亚洲欧美在线_黄色69视频_国内久久av_色999国产精品_日韩免费视频一区_欧美精品九九_午夜羞羞视频在线观看_日韩欧美国产一区二区在线观看_日本一区二区视频免费

Contact Us

Tiny Cooling Fan invention Time

Date: 2015-5-12   Click: 1598 Times

"Tiny Cooling Fan" time later invention, the mechanical roof fan originated in 1830, a man named James Byron was inspired by American watches from the structure, the invention can be fixed on a ceiling, with spring driven mechanical fan. This fan blades rotate slowly bring cool people feel happy, but have climbed the ladder to the winding, very troublesome. In 1872, a Frenchman named Joseph has developed a turbo start by clockwork, gear drive chain means mechanical fan, this mechanical fan "Tiny Cooling Fan" more delicate than Byron invention, the use is also convenient . 1880, American Shule first blade mounted directly on the motor, connect the power supply, the rapid rotation of the blades, cool breeze blowing, which is the world's first "Tiny Cooling Fan".

Back to: Industry news

+86-0769-83660708

Home Product News Contact