Scientific American. [May 24, 1890. 324 AN IMPROVED CAR COUPLING. These collars are adjustable The illustration shows a device adapted for use with passenger as well as freight cars, and which can also be entering the rear section of the key passage, the key applied in connection with the ordinary… … an open sand mould in the form of a cavity of about GRAVES’ KNIFE GRINDING MACHINE. twenty centimeters in diameter and seven or eight centimeters in depth. Iron which is rich in silicium carrying frame may be shortened to suit knives which and carbon becomes rapidly coated on the surface with do…
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