st is a fric- used for draining the last water from the basin and tion brake consisting of two strips of iron on either also for pumping the water from outside the basin, to side pressed together by hydraulic cylinders. ‘These avoid the possibility of undue pressure upon it in case are forced apart… … about 16 inches in diameter working in a Saegmuller, of Washington, who also cylinder which is submerged in the water built the large eidograph. All of these of the tank and connected by wire are upon the designs of the Bureau of cables to a hook which takes hold of the carriage. of weighing…
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