Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . wn, but it was finally generally similar disturbance had taken )ilace in 1S30, onthe introduction of the stamping-machine. The ma-chine for pointing is of still more recent introduction. A needle with a point at each end and an eye atthe middle of its length was patented in England inthe year 1755, for hand-sewing or embroidering, thejiatentee describi
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . wn, but it was finally generally similar disturbance had taken )ilace in 1S30, onthe introduction of the stamping-machine. The ma-chine for pointing is of still more recent introduction. A needle with a point at each end and an eye atthe middle of its length was patented in England inthe year 1755, for hand-sewing or embroidering, thejiatentee describing it as used by holding it with thelingers at the middle of its length, so that it willnot reiiuire turning. In 1829 it was successfully in-troduced into an embroidering-machine, which isstillin extensive use. As many as one hundred and thirtysuch needles, worked by pincers on opposite sidesof the fabric to be embroidered, are used in a singlemachine. In 18i2 a sewing-machine inventoradopted the same kind of needle, and some othershave made sewing-machines with such needles, butno such machines have ever been successful. The accompanying cut shows a number of pat-ented needles, some with eyes near their points, some Fig. 3305,. Needles. having means of slipping the thread into the eyewithout reeving. Needles are known as sluirps, hctwecns, blunts, ac-cording to the relative fineness of their points. The so-called cjoklen-eycd needles are tinted bydipping in an ethereal solution of gold. The silver-eyed needles are not really silvered, butthe silvery hue is given by a peculiar polish. The blue-pointing is a ilark polish ellected by ap-plying the needles to a revolving stone of a bluishcolor. The dnlled-eycd needles have the eyes finished bya drill, the eye end being previouslysoftened. Bells needles, English patent, are made of steel,caM in sand molds. The mode is particularly intended for bodkins,fish-hooks, knitting, netting, packing, and sail nee-dles. 2. (Surgi
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