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 . Hand-Loom. and also to reach any broken thread in the warp. Afeed pawl attaclied to a fly-wheel on the drivingshaft operates a ratchet-wlieel on a rearward shaft,provided with tappets which depress in successionthe treadles. The picker staff projects from a shaftjournaled vertically to the batten, and on this shaftis a strap, the ends of which are divided and se
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 . Hand-Loom. and also to reach any broken thread in the warp. Afeed pawl attaclied to a fly-wheel on the drivingshaft operates a ratchet-wlieel on a rearward shaft,provided with tappets which depress in successionthe treadles. The picker staff projects from a shaftjournaled vertically to the batten, and on this shaftis a strap, the ends of which are divided and securedto the alternate treadles. Thus the harness, let-off,take-up, and shuttle motions are all derived fromthe crank which is by the breast of the 237S is au example of the other kind, in Fis. Hand-magui-fier. A lens, usually of doublycunvi-.\ form, mounted andprovided with a handle. Fig. 2379. Tliey are of various shapesand sizes ; some, the smallerones especially, being roundor oval, and adapted to befoldeil within a case of similarshape, which constitutes thehandles, so as to lie carriedin the pocket. Larger onesare fre()Uently rectangular,and are used as n-aders, Thelens may be of menis-cus or form, to adaptit to the sight of theuser, having a large of view, for con-venience in reading print or viewing ob-jects which do not require a large magni-fying ijwer. Hand-milL The original mode of mak-ing meal was by bruising the grain. Thisplan was earlier than any form of grindingby a ndll. In the time of Pliny one vari-ety of bread was made from pounded grain,and was highly esteemed. (See Bke.\p.)The references to mills in the Bible all eon-c^n the hand-mill, which was universal throughoutthe Orient, the references to it in ol<l writ
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