United States Court of Appeals For the Ninth Circuit . 1478 Arthur G. JJlllard ct al. vs. UNITED STATES PATENT OFFICE. HARRY K. BECKEP., OF HOUSTON, FOR DBHiUNO WELLS. No. 920,048. Specification of Letters Patent. Patented May 4, 1909. Application filed October 12, 1906, Serial No. 338,627. Renewed September 17, 1908. Serial No. 453,602. To all whom it may concern: Be it known that I, Harey R. Decker, acitizen of the United States, residing atHouston, in the county of Harris and State B of Texas, have invented certain, new and use-ful Improvements in Mechanism for DrillingWells
United States Court of Appeals For the Ninth Circuit . 1478 Arthur G. JJlllard ct al. vs. UNITED STATES PATENT OFFICE. HARRY K. BECKEP., OF HOUSTON, FOR DBHiUNO WELLS. No. 920,048. Specification of Letters Patent. Patented May 4, 1909. Application filed October 12, 1906, Serial No. 338,627. Renewed September 17, 1908. Serial No. 453,602. To all whom it may concern: Be it known that I, Harey R. Decker, acitizen of the United States, residing atHouston, in the county of Harris and State B of Texas, have invented certain, new and use-ful Improvements in Mechanism for DrillingWells, of which the following is a invention relates to machinery used in D drilling oil, water and gas wells by what isknown as the rotary process, and consists inproviding a rotary table for rotating the drillstem in which a telescoping cylindrical stiiic-ture is slidably mounted in the opening in the 5 table with the drili stem clamping meansmounted oh said telescoping structure sothat the drill stem may be reciprocated ver-tically wh
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