ISSUED FROM THE UNITED STATES PATENT-OFFICE FOR THE WEEK ENDING MARCH 28 1865. Reported OFecialIN or the Scientific American. Aar Pamphlets containing the Patent Laws and full particulars of the mode of applying for Letters Patent specifying size of model required and much other in formation useful to inventors may be had gratis by ad dressing MUNN it CO. Publishers of the SCIENTIFIC AMERICAN New York. 46980School Desk and SeatJobn P. Allen Rich mond Ind.: a support as well as a means of attach mem for the bookshelf or bottom g of the book box substantially as set forth. Mass.: drill making the drill in one piece between the movable cap and the Mich.: I claim a combined writing tablet ruler and paper cutter con. structed as described as a new article of mane facture. [This invention relates to a writing tablet which can be used as a paper cutter and ruler and which proves to be of great convenience for the purpose of holding blank paper to be used as a desk or in or about a factory or in the army or other operations for memoranda or notices. When made on a large scale it may also be used for hold ing and measuring drafting and other paper or prints cloth etc. the treatment of pyrites containing the precious metals in the man ner substantially as and for the purposes set forth. Secoud The forming of sulphurous acid substairially as described for the purpose of treating the calcined ores whether containing only the baser metals or the baser metals with gold and silver. Third The use of sulphurous acid thus formed in treating the cal cined ores for the purpose of converting the insoluble °glues into aolubl sulphates timed lily copper as described. Fourth The method of obtaining a highly concentrated solution of the baser metals by lixiviating with the acid and submitting the weaker solution obtained by ligiviating with water to the acidulat ting process as set forth substantially as herein described. evolved from the ore and surround the latter with a constantly chang
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ISSUED, UNITED STATES PATENT-OFFICE FOR, WEEK ENDING MARCH 28 1865, Reported OFecialIN, Scientific American, Aar Pamphlets containing, Patent Laws, full particulars, mode, applying, Letters Patent specifying size, model required, formation useful, inventors, gratis, ad dressing MUNN, CO, Publishers, SCIENTIFIC AMERICAN New York, 46980School Desk, SeatJobn P, Allen Rich mond Ind., support, well, means, attach mem, bookshelf, bottom g, book box substantially, set forth, Mass., drill, drill, piece, movable cap, Mich., I claim, combined writing tablet ruler, paper cutter con, structed, described, new article, mane facture, invention relates, writing tablet, paper cutter, ruler, proves, great convenience, purpose, holding blank paper, desk, factory, army, operations, memoranda, notices, large scale, hold ing, measuring drafting, paper, prints cloth etc, treatment, pyrites containing, precious metals, man ner substantially, purposes set forth, Secoud, forming, sulphurous acid substairially, described, purpose, treating, calcined ores whether containing, baser metals, baser metals, gold, silver, Third, sulphurous acid thus formed, treating, cal cined ores, purpose, converting, insoluble °glues, aolubl sulphates timed lily copper, described, Fourth, method, obtaining, highly concentrated solution, baser metals, lixiviating, acid, submitting, weaker solution obtained, ligiviating, water, acidulat ting process, set forth substantially, herein described, evolved, ore, surround, latter, constantly chang, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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