. Bulletin - United States National Museum. Science. Figure 70.—Thomas Rogers (1792-1856). From J. Leander Bishop, A History of American Manufactures from 1608 to i860, 3d ed., 3 vols. (Philadelphia, 1868). put together it would be impossible to take the cyl- inders off. He feared that when the Messrs. Sellers undertook to move the engine, they would find it like Robinson Crusoe's boat. William the driver said he could not help saying, "maybe the stone-mason's hammer and chisel will soon make the door ; This trivial matter must have made a lasting impression on Mr. Rogers, for


. Bulletin - United States National Museum. Science. Figure 70.—Thomas Rogers (1792-1856). From J. Leander Bishop, A History of American Manufactures from 1608 to i860, 3d ed., 3 vols. (Philadelphia, 1868). put together it would be impossible to take the cyl- inders off. He feared that when the Messrs. Sellers undertook to move the engine, they would find it like Robinson Crusoe's boat. William the driver said he could not help saying, "maybe the stone-mason's hammer and chisel will soon make the door ; This trivial matter must have made a lasting impression on Mr. Rogers, for twenty or more years later he asked me how we had got the engine out of the house it was set up in, adding, "I have always been curious to ; Fifty years ago, the time I am now writing of, the mechanical engineer was no more exempt from diffi- culties in the introduction of anything new and un- tried than he has been at any subsequent period. All our arrangements had been made to deliver our first locomotive "America" from our shops to the head of the incline plane over a hilly country road of about six miles, when we received a note from the canal commissioners stating that they had become satisfied that our outside connected engine, with the spread of its cylinders, would produce so much oscillation as not only to be injurious to the engine but to the track, if the engine could be made to keep it, but this might be partially remedied by placing side bearings on the truck; that unless they were put on, the engine would not be allowed to run on the road even for a trial. Here was a serious dilemma. Having had a full understanding with Mr. Brandt as to carrying the weight on the center-pin, and to satisfy the commissioners, having adopted outside frame and bearings for the truck axles, with separate spring to each journal, there was nothing above this outside truck-frame to which a support could be applied. Baldwin's springs over the outside wooden fram


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience