again filled up to the cup, and thestopper replaced. The screw plug in the cistern beingremoved, the column will fall until balanced by the pressureof the atmosphere, and the vacuum is as perfect as it ispossible to get it, the small quantity of glycerine remainingin the cup above the stopper,… … Fig. 5.-MACHINE FOR LEVELING AND TRUSSING SLACK BARRELS- Mr. David S. Thomas, of North Platte, Nebraska, haspatented a windmill which supplies an improved device forcontrolling or adjusting the sails or vanes. A clutch wheelor spider and a spirally grooved loose sleeve, to which isattached a small…
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