Memoirs of the Most Eminent American Mechanics: Also Lives of Distinguished European Mechanics ...Derby & Jackson, 1858 - 482 страници |
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Страница 28
... feet in length , and , as observed in the text , was propelled by a pump worked by a steam engine , which forced a quantity of water up through the keel ; the valve was then shut by the return of the stroke , which at the same time ...
... feet in length , and , as observed in the text , was propelled by a pump worked by a steam engine , which forced a quantity of water up through the keel ; the valve was then shut by the return of the stroke , which at the same time ...
Страница 30
... feet , and each vibration of it gives the axis about forty evolutions . Each evolution of the axis moves twelve oars or paddles five and a half feet ; they work perpendicularly , and are represented by the strokes of a paddle of a canoe ...
... feet , and each vibration of it gives the axis about forty evolutions . Each evolution of the axis moves twelve oars or paddles five and a half feet ; they work perpendicularly , and are represented by the strokes of a paddle of a canoe ...
Страница 33
... feet , and wet their arms and ammunition . ' He complains of his poverty ; and to raise funds , he urges Mr. Rittenhouse to purchase his lands in Kentucky , that he might have the honor of enabling him to com . plete the great ...
... feet , and wet their arms and ammunition . ' He complains of his poverty ; and to raise funds , he urges Mr. Rittenhouse to purchase his lands in Kentucky , that he might have the honor of enabling him to com . plete the great ...
Страница 75
... feet of marble in twelve hours , made a great show and excited much attention . I thought this was sufficient to convince the thousands of spectators of the utility of my discovery , but I frequently heard them inquire if the power ...
... feet of marble in twelve hours , made a great show and excited much attention . I thought this was sufficient to convince the thousands of spectators of the utility of my discovery , but I frequently heard them inquire if the power ...
Страница 79
... feet keel , and eighteen feet beam . Two of Mr. Evans ' company of workmen went with the engine to meet the boat at New Orleans , to set it up , which they completed . and the boat was ready for experiment ; but by this time the water ...
... feet keel , and eighteen feet beam . Two of Mr. Evans ' company of workmen went with the engine to meet the boat at New Orleans , to set it up , which they completed . and the boat was ready for experiment ; but by this time the water ...
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Страница 41 - I had gone on making verses ; since the continual occasion for words of the same import, but of different length, to suit the measure, or of different sound for the rhyme, would have laid me under a constant necessity of searching for variety, and also have tended to fix that variety in my mind, and make me master of it.
Страница 43 - They read it, commented on it in my hearing, and I had the exquisite pleasure of finding it met with their approbation, and that in their different guesses at the author, none were named but men of some character * among us for learning and ingenuity.
Страница 45 - Thus I went up Market Street as far as Fourth Street, passing by the door of Mr. Read, my future wife's father; when she, standing at the door, saw me, and thought I made, as I certainly did, a most awkward, ridiculous appearance.
Страница 54 - ... year's instruction in a Latin school, and that when very young, after which I neglected that language entirely. But when I had attained an acquaintance with the French, Italian, and Spanish, I was...
Страница 45 - ... my future wife's father; when she, standing at the door, saw me, and thought I made, as I certainly did, a most awkward, ridiculous appearance. Then I turned and went down Chestnut Street and part of Walnut...
Страница 125 - Twas early day, as poets say, Just when the sun was rising, A soldier stood on a log of wood, And saw a thing surprising. As in amaze he stood to gaze, The truth can't be denied, sir, He spied a score of kegs or more Come floating down the tide, sir. A sailor, too, in jerkin blue, This strange...
Страница 279 - ... had been that which he had been last occupied in studying and exhausting ; such was the copiousness, the precision, and the admirable clearness of the information which he poured out upon it without effort or hesitation. Nor was this promptitude and compass of knowledge confined in any degree to the studies connected with his ordinary pursuits. That he should have been minutely and extensively skilled in chemistry and the...
Страница 275 - It regulates with perfect accuracy and uniformity the number of its strokes in a given time, counting or recording them, moreover, to tell how much work it has done, as a clock records the beats of its pendulum ; it regulates the quantity of steam admitted to work, the briskness of the fire, the supply of water to the boiler, the supply of coals to the fire ; it opens and shuts its valves with absolute precision as to time and manner ; it oils its joints ; it takes out any air which may accidentally...
Страница 45 - I walked again up the street, which by this time had many clean-dressed people in it, who were all walking the same way. I joined them, and thereby was led into the great...
Страница 66 - Without my having made any application for that honor, they chose me a member, and voted that I should be excus'd the customary payments, which would have amounted to twenty-five guineas; and ever since have given me their Transactions gratis. They also presented me with the gold medal of Sir Godfrey Copley...