r end of the trough is weighted, so as to insure that the inner end will be thrown up with sufficient force to service. The shaft is driven by gearing operated by an engine carried by the car. As the wheel is rotated, the open the valve. bail when the inner end of the trough rises up under snow… … earth, leaving the fiber clean. If, instead of infusorial earth, we read fuller’s earth, the principle of the pro- cess will be found very ancient. ward by centrifugal force, the impetus being sufficient to carry it out of the vicinity of the track. Where the | oo GOVERNOR VALVE. track is built on…
Internet Archive · Public domain (published before 1931). Free to use for anything.
