. Bulletin - United States National Museum. Science. Figure 18.—A Morev and Johnson sewing machine as illustrated in Scientific American, January 27, 1849. (Smithsonian photo 45771.) rollers, which supported the endless clothholder, carried a ratchet wheel advanced by the action of a pawl connected to the end of the crankshaft by a small crankpin, whose position or distance from the axis of rotation of the shaft could be adjusted. By this adjustment the extent of the vertical travel of the impelling pawl was regulated to control the length of the stitch. A spring catch kept the ratchet wheel i
. Bulletin - United States National Museum. Science. Figure 18.—A Morev and Johnson sewing machine as illustrated in Scientific American, January 27, 1849. (Smithsonian photo 45771.) rollers, which supported the endless clothholder, carried a ratchet wheel advanced by the action of a pawl connected to the end of the crankshaft by a small crankpin, whose position or distance from the axis of rotation of the shaft could be adjusted. By this adjustment the extent of the vertical travel of the impelling pawl was regulated to control the length of the stitch. A spring catch kept the ratchet wheel in place at the end of each forward rotation of the wheel by the pawl. A roller placed over the end- less belt at its middle roller pressed the cloth onto the wire points. A curved piece of metal was bent over and down upon the top of the belt so that the cloth, as it was sewed, was carried toward and against the piece by the belt. The cloth rose upon and over the piece and was separated from the points. When the ma- chine was in motion the cloth was carried forward, passed under the needle, was stitched, and finally, passed the separator and off the belt. A vertically reciprocating, straight, eye-pointed needle, a hori- zontal supporting surface, and a yielding cloth presser were all used, but none were claimed as part of the patent. These were later specifically claimed in re- issues of this patent. Bachelder's one specific claim, the endless feed belt, was not limited to belt feeding. *-*?"* Figure 19.—Bachelder's patent model, 1849. (Smithsonian photo 45572). only. As he explained in the patent, a revolving table or a cylinder might be substituted. Bachelder did not manufacture machines, but his patent was sold in the mid-1850s to I. M. It eventually became one of the most important patents to be contributed to the "Sewing-Machine Combination," a patent pool, which is discussed in more detail on pages 41 and 42. While new ideas and inventors cont
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