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华北冶金矿山建设公司第二井巷工程公司电工刘大华同志和同志们一起革新了施工斜井人车掉道自动断电停车装置,1979年11月底经建设公司安全、技术部门现场鉴定效果良好,人车掉道后在一秒钟内即可停车。自鉴定后开始正式使用至今虽有掉道,但因自动断电停车未发生任何事故。自制简易人车外形尺寸为3000×1150×1400毫米。
North China Metallurgical Mining Construction Company Second Lane Engineering Company electrician Comrade Liu Dahua and comrades together to innovate the construction of inclined car off the road automatic power-off parking device, by the end of November 1979 by the construction company security, technical departments on-site appraisal effect is good, people Turn off the car in a second after parking. Since the appraisal since the formal use has been off the road so far, but due to automatic power off without any accidents. Homemade simple car dimensions of 3000 × 1150 × 1400 mm.