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Updated: May 19, 2025
The hand which grasps a dynamometer soon exhausts its effort, and is obliged suddenly to let go.
He continued making the 1868 patent and improved in 1871 "new turbine" but a few years, for as long as he could detect a defect in the wheel, case or gate, he continued improving and simplifying them, and in 1873 he erected a very complete testing flume, also made a very sensitive dynamometer, it having a combination screw for tightening the friction band, which required 100 turns to make one inch, and commenced making and experimenting with different constructed turbines.
"Just about," returned Kennedy, who had by this time begun slowly to dismember and pack up the dynamometer, determined to take advantage of every minute both to observe Langhorne and to fix in his mind the general lay-out of the office. "Everybody seems to be interested in me this morning," he observed, for the moment forgetting the embargo he had imposed on his own words.
This article was composed of a metal body screwed on to a strong tripod, with a lower tray that moved backwards and forwards, and two lateral buttresses with a steel cross-piece firmly bolted on to them above. Upon this framework were two dynamometers worked by an ingenious piece of mechanism. Juve looked at Charles Rambert and explained. "This is Dr. Bertillon's effraction dynamometer.
Among his inventions is a dynamometer for determining the traction power of machines and animals, and his experiments with steam have led some of his enthusiastic partisans to claim for him priority to Watt in the invention of the steam-engine. In these experiments, however, Leonardo seems to have advanced little beyond Hero of Alexandria and his steam toy.
Professors Ayrton and Perry have recently used a modification of this dynamometer, in which the part of the cord nearest to P is larger and rougher than the part nearest to Q. The effect of this is that when the coefficients of friction increase, Q rises a little, and diminishes the amount of the rougher cord in contact, and vice versa.
"Quite lately M. Bertillon invented a marvellous dynamometer which enables us not only to ascertain what kind of lever has been used to force a lock or a piece of furniture, but also to determine the exact strength of the individual who used the tools. I have taken samples of the wood from the broken drawer, and I shall soon have exact information."
A. The dynamometer employed for ascertaining the traction upon railways consists of two flat springs joined together at the ends by links, and the amount of separation of the springs at the centre indicates, by means of a suitable hand and dial, the force of traction. A cylinder of oil, with a small hole through its piston, is sometimes added to this instrument to prevent sudden fluctuations.
What did he mean? Did you see it?" Rapidly Kennedy sketched what we had done, telling the story of how the dynamometer had at least partly exonerated Betty Blackwell. When he reached the description of the hole in the safe, Carton was absolutely incredulous. As for myself, it presented a mystery which I found absolutely inexplicable.
The cable laying machinery was then transformed into a grappling machine, and by half past seven that evening the strain on the dynamometer showed we had in all probability hooked something. An hour later the end was on board, and by midnight a satisfactory splice had been made by a sergeant of the Signal Corps, in charge of such work, and his band of native cable splicers.
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