| Description | 3 sheets. On the same sheets: Memorandum. Experiments with the James Watt. 6—8 Nov. 1821. Docketed “Experiments with the James Watt. First: all the paddles on, immersed 2 feet 6 inches – speed 10.04 miles per hour. 2nd: half the paddles off the outer rims – speed 9.94 miles per hour. 3rd: half the paddles off each wheel – speed 9.51 miles per hour. 4th: half the paddles off the inner rims – speed 10.03 miles per hour. Comparative speed of the Dasher. Consumption of coal, ten bushels per hour. Propose carrying less coal. Intend trying a deeper immersion of the paddles. One of the crank wheels cracked. Paddle shafts of Meteor. On Mr. Delap’s syphon scheme. Broderip’s vessel at Holyhead. His statement of its velocity.” |