. United States Court of Appeals For the Ninth Circuit. \ s.!?^<^.a^4iX cS No. 641,977. J. CONCENTRATOR. (Application flled Mar. \e, Patented Jan. 23, 1900. 4 Sheets—Sheet 4. ^•^^.ux^^^WH-^i^-^W^^ United States Patent Office. JACOB LAM PERT, OF HILL CITY, SOUTH SPECIFICATION forming part of Letters Patent No. 641,077, dated January 23, Sled U&rch 16,1899. Serial Ho, 708,300. (Ho model.) To all whom it may concern: Be it known that I, Jacob Lampkrt, of HillCitj, in the county of Pennington and Stateof South Dakota, have inven
. United States Court of Appeals For the Ninth Circuit. \ s.!?^<^.a^4iX cS No. 641,977. J. CONCENTRATOR. (Application flled Mar. \e, Patented Jan. 23, 1900. 4 Sheets—Sheet 4. ^•^^.ux^^^WH-^i^-^W^^ United States Patent Office. JACOB LAM PERT, OF HILL CITY, SOUTH SPECIFICATION forming part of Letters Patent No. 641,077, dated January 23, Sled U&rch 16,1899. Serial Ho, 708,300. (Ho model.) To all whom it may concern: Be it known that I, Jacob Lampkrt, of HillCitj, in the county of Pennington and Stateof South Dakota, have invented certain new5 and useful Improvements in Ore-Concentra-tors; and I hereby declare that the followingis a full, clear, and exact description there-of, reference being had to the a^companyingdrawing8,which form partof this specification. 10 This invention is an iraprcvement in ore-concentrators of the kind shown in my PatentNo. 533,362, of January 20,1805, and the pres-ent invention is more particularly an im-provementupon theconcentratorshown in my 15 said patent: and it eonsista in the novel com-binations and constructions of parts herein-after summarized in the claims and illustratedin
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