le apparatus they are liable to become fast shall be supported by the in their seats, and useless for piston, thus allowing of the Plan d’ensembie the purpose intended. removalof the bar inserted in ‘‘Should the gauge at any the hole, K. Upon then open- time indicate an excessive ing the eduction,… … ters containing sulphate of lime, by converting it into a platform: Fig. 5.-HYDRAULIC CYLINDER, FOR RAISING AND LOW- The rings are brought to the spot all prepared for carbonate, and so forming a soft scale easily cleaned; ERING MOVABLE PLATFORM. being placed in position to be riveted together.…
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