ment con- M. F. Kuhlmann, of Paris, has recently com- The stuffing box in the above valve deserves patent can be bad. sists in a new arrangement of the valve spin- municated to the Academy of Sciences a pro- dle, which permits on easy re-grinding of the cess which he has discovered for the forma-… … in a very short space of time, and the parts be well known with what facility chloride of sil- Improved Lathe Chuck. jections, B', on their lower sides, in which again returned to their original position, ready In this improvement there is a circular, ver gives up its chlorine to hydrogen, as the…
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