At the end of this line it is shaken out over a grating, and the sand handled in the same manner as on the smaller conveyors. 佚名.神奇的知识之书.
Hence, it became necessary to invent a system of conveyors that would be capable of transferring this mass of material from one place to another. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
It is reloaded into cars by other conveyors operating at the base of each pile. 佚名.神奇的知识之书.
This core room contains perhaps the only endless chain core oven in this country in which are two endless chain conveyors. 佚名.神奇的知识之书.
Coal cars are dumped into hoppers under the tracks and the coal carried to the top of the piles by conveyors. 佚名.神奇的知识之书.
The bodies are let down the chutes on belt conveyors, picked up by small derricks and swung over onto the chassis. 佚名.神奇的知识之书.
Edison's work on conveyors during the period of his ore-concentrating labors was distinctively original, ingenious and far in advance of the times. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
This sand was transported automatically by belt conveyors to the rear of the works to be stored and sold. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
Between 1880 and 1890 there was great activity in the invention of what is known as store service conveyors. 威廉·亨利·杜利特.世纪发明.