United States Court of Appeals For the Ninth Circuit . M. ey-r ? •DUi PMJlft-uT-lCitfcPiiU. KMni^CTOM Z (, / \iri()iis I}c fend Gilts. T389 UNITED States Patent Office. BENJAMIN F. ASPER AND ROBERT MAGILL, OF PITTSBURG, IN APPARATUS FOR BORING OIL-WELLS. Specification forming part of Letters Patent No. 208,5S5, dated October 1, 1878; application filed Jimc 14. 1878. To all whom it may coivcem: Be it known tiiat we, Benjamin F. Asperand EOBEBT Magill, of Pittsburg, in thecounty of. Allegheny and State of Pennsylva-nia, have invented certain new and useful Im-provements
United States Court of Appeals For the Ninth Circuit . M. ey-r ? •DUi PMJlft-uT-lCitfcPiiU. KMni^CTOM Z (, / \iri()iis I}c fend Gilts. T389 UNITED States Patent Office. BENJAMIN F. ASPER AND ROBERT MAGILL, OF PITTSBURG, IN APPARATUS FOR BORING OIL-WELLS. Specification forming part of Letters Patent No. 208,5S5, dated October 1, 1878; application filed Jimc 14. 1878. To all whom it may coivcem: Be it known tiiat we, Benjamin F. Asperand EOBEBT Magill, of Pittsburg, in thecounty of. Allegheny and State of Pennsylva-nia, have invented certain new and useful Im-provements in Apparatus for Boring Oil-Wells; and we do hereby declare the following^to be a full, clear, and exact description of theinvention, sach as will enable others skilledin the art to which it pertains to make anduse it, reference being had to the accompany-ing drawings, which form j!(art of this speciii-cation, in which— Figure 1 is a side elevation; Fig. 2, an endelevation; Fig, 3, a sectional view of well,&€.] Fig. 4, detail of feeding - sl
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