United States Court of Appeals For the Ninth Circuit . 20drill member to prevent movement thereofin the sleeve in one direction. 8. In a machine of the character de-scribed, the sleeve, the drill member there-in, and a coupling between said sleeve and 25drill member, in combination with a piv-oted dog carried by said coupling adapted toautomatically impinge upon the drill mem-ber to prevent movement thereof in thesleeve in one direction. 30 In testimony whereof I have signed myname to this specification in the presence oftwo subscribing witnesses. SAMUEL N. HALL. Witnesses: a. schlafti,Wm. a.
United States Court of Appeals For the Ninth Circuit . 20drill member to prevent movement thereofin the sleeve in one direction. 8. In a machine of the character de-scribed, the sleeve, the drill member there-in, and a coupling between said sleeve and 25drill member, in combination with a piv-oted dog carried by said coupling adapted toautomatically impinge upon the drill mem-ber to prevent movement thereof in thesleeve in one direction. 30 In testimony whereof I have signed myname to this specification in the presence oftwo subscribing witnesses. SAMUEL N. HALL. Witnesses: a. schlafti,Wm. a. Cathet. Various Defendants, 1321 Willard Wilcox Exhibit Patent. [Endorsed] : No. A-i 10 A-i 18 B-18 U. S. DistrictCourt, Southern District of Cahfornia. SOUTHERNDIVISION. Willard et al -vs- Union Tool Co et alWillard Wilcox Exhibit Patent FILED APR 6 1917WM. M. VAN DYKE, Clerk By T F Greer DeputyClerk Arthur G. JViUard cf al. vs. A. G. WILLARD & C. E. WILCOX. WELL BORING PILED MAE. 11, 1912. 1,064,270. Patented June 10, J\vious Pcfcndaiifs. 1323 UNITED STATES PATENT OFFICE. ARTHUR G. WILLARD, OF LOS ANGELES, AND CHARLES E. WILCOX, OF BAEBBSFIELD, CALIFORNIA. 1,064,270. WELL-BORING APPARATUS. Specification of letters Patent. Patented June 10,1913. Application filed March 11,1912. Serial No. 682,977. yw all nvhom it may concern: Be it known that we, Arthcr G. Wil-i-ARi) and Charles E. Wilcox, citizens of(he United States, residing, respectively, at5 Los Angeles, in the county of Los Angelesand State of California, and at Bakersfidd,in tlie county of Kem and State of Califor-nia, have jointly invented new and usefulImprovements in Well-Boring Apparatus, 10 of which the foHowing is a invention relates to the art of wellboring or Well drilling, and more particu-larly to well borers sue as are providedwith Iotary tops whereby the rot4i(ion,of 15 the boring tool and the string of pij)e sec-tions extending upwardly from the same tothe rig
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