gement usually employed reverse cams will be used. from being worn away at such edges through kernels of to sustain the sash. This device, applied to shaft couplings, it is claimed, will grain getting between the same and the bot- effect even a greater saving than when ap. tom piate. In Pig. 1,… … that the distance between stone and case tionable, as breaking the surface causes them BEETELSONS IRONCLAD HULLING STONE. need not be over one quarter of an inch. to warp. Fig. 4 shows the invention as ap- The blast has always to break at a very short angle after enter- The patent, obtained through…
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