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In preparation for a third run, in which it was intended to use full power, a dynamometer was attached to the machine and the engines were started at 200 lbs. pressure, which was gradually increased to 310 lbs per square inch. The incline of the track, added to the reading of the dynamometer, showed a total screw thrust of 2,164 lbs.
The grapnel hooks a rock, a large increase of strain is indicated on the dynamometer, and it becomes doubtful whether the cable as well is hooked or not. Again, it frequently happens in grappling over a rocky bottom that one or more prongs are broken off, the grapnel thus becoming useless, great waste of time being thus occasioned.
If in place of one of the weights we use a spring balance, as in Figs. 2 and 3, we get a dynamometer which automatically adjusts itself to changes in the coefficient of friction. A numerical calculation here may be useful.
The motor should he made to run at that speed at which it gives the greatest power with a high efficiency, without heating to a degree which would damage the insulating material. Before fixing a motor in its final position, it should also be tested for power with a dynamometer, and for this purpose a Prony brake answers very well.
The tractive force of paddle wheel steamers is ascertained by a dynamometer fixed on shore, to which the floating vessel is attached by a rope. Sometimes the power of an engine is ascertained by a friction break dynamometer applied to the shaft. Q. What will determine the amount of thrust shown by the dynamometer?
What a dynamometer of happiness are these paltry toys, and what a rudimentary vertebrate must be the freckled adolescent whose yearning for the infinite can be stayed even for a single hour by so trifling a boon from the venal hands of the finite!
In October, 1818, he made a series of careful experiments in conjunction with Nicholas Wood, on the resistance to which carriages were exposed on railways, testing the results by means of a dynamometer of his own construction.
It would certainly be better to measure the force expended during and not after the experiment, by means of a registering dynamometer. Moreover, M. Hagenbach writes that his measurements by means of the brake were very much prejudiced by external circumstances; doubtless this is the reason of the divergences between the results obtained. About the same time Dr.
We should begin with man, of course; institute a large and exact comparison between the development of la pianta umana, as Alfieri called it, in different sections of each country, in the different callings, at different ages, estimating height, weight, force by the dynamometer and the spirometer, and finishing off with a series of typical photographs, giving the principal national physiognomies.
Then I find the consumers of nothing but the salted and dried article insist that it is poisonous, simply because it is alive, and cry out to people not to touch it. I have not found, however, that people mind them much. The poor boarder in bombazine is my dynamometer. I try every questionable proposition on her. If she winces, I must be prepared for an outcry from the other old women.
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