Compressed air . Claim.—I. A tool-piston, its cylinder, pipesfor supplying motive fluid alternately to theopposite sides of the piston and means forclosing communication between the space at one side of the piston and one of the pipesand opennig the said space to atmosphere. 818,776. SAND-BLAST APPARATUS. JohnD. Murray, San Francisco, Cal. FiledMay 5, 1905. Serial No. 258,965. 819,032. FLUID-PRESSURE BRAKE. Wil-liam P. A. Macfarlane, Chicago, Nov. 4, 1905. Serial No. 285,822. 818,638. HAM:\IER-DRILL. William Prell-wiTZ, Phillipsburg, N. J., assignor toIngersoll-Rand Company, New York


Compressed air . Claim.—I. A tool-piston, its cylinder, pipesfor supplying motive fluid alternately to theopposite sides of the piston and means forclosing communication between the space at one side of the piston and one of the pipesand opennig the said space to atmosphere. 818,776. SAND-BLAST APPARATUS. JohnD. Murray, San Francisco, Cal. FiledMay 5, 1905. Serial No. 258,965. 819,032. FLUID-PRESSURE BRAKE. Wil-liam P. A. Macfarlane, Chicago, Nov. 4, 1905. Serial No. 285,822. 818,638. HAM:\IER-DRILL. William Prell-wiTZ, Phillipsburg, N. J., assignor toIngersoll-Rand Company, New York. , a Corporation of New Jersey. FiledDec. 7, 1905. Serial No. 290,690. Claim.—T. In a hammer-drill, a hammer-cylinder and a hollow protective casing there-for having its wails entirely spaced from thecylinder, the cylinder being supported only bythe ends of the casing for the puri)ose setforth. 4096 COMPRESSED


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcompres, bookyear1896