. American engineer and railroad journal . Fig. 1. Fig. 2. Fig. 3. THE CAPITAL VISES AND JACK SCREWS. Fig. 4. nunc the engines economy in verification of the builders guar-antees, the following results were obtained : In a six hour trial, while running non-condensing, with anaverage steam pressure of lbs., the engines making 162 revolutions per minute, the average indicated developed was :()?.74 and the water consumed per indicated II. 1. lbs. Another trial of the same length with an engine run-ning condensing, the steam pressure being 130 lbs. with a the jaws to the work,
. American engineer and railroad journal . Fig. 1. Fig. 2. Fig. 3. THE CAPITAL VISES AND JACK SCREWS. Fig. 4. nunc the engines economy in verification of the builders guar-antees, the following results were obtained : In a six hour trial, while running non-condensing, with anaverage steam pressure of lbs., the engines making 162 revolutions per minute, the average indicated developed was :()?.74 and the water consumed per indicated II. 1. lbs. Another trial of the same length with an engine run-ning condensing, the steam pressure being 130 lbs. with a the jaws to the work, simply a sliding movement, so that thewear on the screw and nut is very much less than in the oldmethod. In this way it is naturally seen that, the screw andnut are used very nmeli less than in the old way and with acorresponding less amount of wear. The advantages claimedby their jack screws are that they are full size screws, that thecollars are of steel, and screws of the same material. A dip-loma and medal was awarded the firm at the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
