protect these ideas by means In the case of the fifty sluices at 92 meters river- Twenty-five will have their sills at 92 meters river- of patents. The inventor states that the full-sized level without the rollers, the sluice gate slides against machine is supposed to be driven by a four- the… … lock gates. _——_——_——+- 0 The Russian Ministry of Ways and Com- THE NILE DAM. GATES. a Lieut. E. P. Bertholf, who was sent to munications appointed a special commission Siberia last winter by the government to secure to discuss the project brought forward by a syndicate level, fifty (without…
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