J titntific �mtritllU. In all the processes used prior to the preeent invention the wood has been acted upon by the stone in one of tw O United State8 OirCltit Oourt-Ea8tern Di8trict oj Pennsylva. ways: namely, either by causing the surface of the stone t o act upon the ends of the fi bers, the surface of the stone mov' ing substantially in a plane perpendicular to the fibers of the Reeves V8. Keystone Bridge Company, J. R Linville and wood; or, secondly, by acting upon the fi bers in such a

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... PATENT INFRINGEMENT CASES, nia, in Equity. others. rection that they were severed diagonally, the surface of the This was a suit for infringement of the complainant's pat. stone m oving diagona lly across the fi bers. ent of June 17, 1862. The jDatent is for an improvement in The fi rst plan, in fact, made powder of the wood. The the construction of columns, shafts, braces, etc., and the in. pulp had no "p racti cal length, and on trial proved worthless, vention consists in the use of three or four wrought iron or nearly so. The second plan was carried out by the use bars of such shapes and dimensions that, when arranged to. o f a stone revo lving like an ordin ary grindstone, the WOQU gether in the direction of their length and fastened by rivets being applied upon the cylindrical surface thereof, with the or bolts through their fl anges, they form a hollow shaft or fi bers perpendicul ar, or nearly so, to planes passing through column. the axis of the stone and the point or locality where the The respondents admitted the making and using of the g rinding was performed; and this plan also faded becausQ column described in the patent, but denied its noveliyo n the fi bers were cut off in lines diagonal to their own length, the following grounds: and were consequently too short to make good pulp.