. Bulletin - United States National Museum. Science. Figure 54.—1809: The introduction of the gimlet- pointed auger followed Ezra L'Hommedieu's patent of 1809. From this date until its general disuse in the early 20th century, the conformation of the tool remained unchanged, although the quality of steel and the precision of the twist steadily improved. (Wash drawing from the restored patent drawings awarded July 31, 1809, Patent Office, Record Group 241, the National Archives. Smithsonian photo 49790-A.) j^UMJL Figure 55.—1855: Russell Jennings' improved auger bits, first patented in 185
. Bulletin - United States National Museum. Science. Figure 54.—1809: The introduction of the gimlet- pointed auger followed Ezra L'Hommedieu's patent of 1809. From this date until its general disuse in the early 20th century, the conformation of the tool remained unchanged, although the quality of steel and the precision of the twist steadily improved. (Wash drawing from the restored patent drawings awarded July 31, 1809, Patent Office, Record Group 241, the National Archives. Smithsonian photo 49790-A.) j^UMJL Figure 55.—1855: Russell Jennings' improved auger bits, first patented in 1855, received superior citation at the Philadelphia Centennial; in the years following, the trade name "Jennings" was seldom omitted from trade catalogues. (Original wash dra\ving, patent drawing submitted by R. Jennings, Patent Office, Record Group 241, the National Archives.) F/0 J 1 4vv^vvv'^^'^' of American hand tools "occupying an enviable posi- tion before the ; '' The tool most highly praised at Philadelphia was the American felling (fig. 52) "made out of a solid piece of cast steel" with the eye "punched out of the ; When compared to other forms, the American axe was "more easily worked," and its shape permitted an easier withdrawal after striking.'- " Francis A. Walker, ed., United States Centennial Commission, International Exhibition, i8y6. Reports and Awards, Group XV (Philadelphia, 1877), p. 5. 12 Ibid., p. 6. Sawmakers, too, were singled out for praise—in particular Disston & Sons (fig. 53) for "improvements in the form of the handles, and in the mode of fixing them to the ; The Disston saw also embodied an improved blade shape which made it "lighter and more conv'enient by giving it a greater taper to the ; Sheffield saws, once supplied to most of the world, were not exhibited at Philadelphia, and the British expert lamented that our "monopoly r
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