Volume 20 (1870) (454 pages)

Scientific Press Girewlar, 18¢ DEWEY « Co. American and Foreign tent Agents, No. 414. Clay Street, SAN FRANCISCO. Patents Obtained Promptly. Caveats Filed Expeditiously. Patent Reissues Taken Out. ; Assignments Made and Recorded in Legal Form. Copies of Patents and Assignments Procured. Examinations of Patents made here and at Washington. Examinations made of Assignments Recorded in Washington. Examinations Ordered and Reported by TexeGRAPH, Rejected Cases taken np and Patents Obtained. Interferences Proseented. Opinions Rendered regarding the Validity of Patents and Assignments. Every Legitimate Branch of Patent Agency Business promptly and thoronghly condneted, DEWEY & CO., Mining and Seientifie Press, San Francisco. Circurars FREE. Assignmenis. We mako out assignments in the most substantial legal and improved forms, record the same in the Patent Offico at Washington, and return tho papers to the assignee, at a total cost of $5. Assignments of extra length or of a special character, will be made out and recorded on the most favorable terms. Assignments already made will be examined end opinions rendered regarding their validity, and the assignments recorded, when desired, for a moderate fee. Unsuccessful Applicants. Inventors who have rejected cases, prepared either by themselves, or fer them hy other agents, and desire to ascertain their prospects of suecess by further efforts, are invited to avail themselves of our unsurpassed facilities in securing favorable results. We have been successful in securing Letters Patent in many such cases. Our terms are very moderate. Our long experience as editors and publishers M. & §. P. guarantees our familiarity with most of the subjects of patents on this coast, and insures inventors a more ready understanding of their cases than they can secure from any other qnarter. It is not the duty of any government official in or out of the Patent Office to prepare patent pacrs, or make models. These must be provided y the applicant or his atterncy, according to law, otherwise his claim will not be considered. Our Office. The office of the Mintne anp Scienriric Press is located in the secend story at No. 414 Clay street, north side, just below Sansome. Here we have spacious accommodations, with our patont rooms, editerial room cuunting room, and news paper printing office —all conveniently arranged and connected, anu our facilities for disatching business correctly and c2onomically, beer than ever before. Don’t forget the number —414 Clay street, below Sansome Home Counsel. Weare frequently consulted by persons who have rejected cascs which they scnt months previous through distant agencies—(hastily paying their first and last gevernment fees, expressage, and extraordinary charges of agents)—when we ceuld have sbown in the start precisely similar drawings and descriptions in the Patent Office Reports in our office, thus saving such applicants thcir uselcss oxpenditure of moncy aud their long suspense. We invite the acquaintance of ail parties connected with inventions and patent right business, believing that the mutual conference of legitimato husiness and professional men is mutual gain, Parties in doubt in regard to their rights as assignees of patents, or purchasers of patented articles, can often receivo free advice of importance to them, from a short call at our offico. In Our Library We bave the only complote set of U. S. Patent Office Reports (from 1844) on this coast; a full record of ali patents issued since 1790; Record of British patents from 1801, und full files of scientifie papers containing illustrations and list of U. §S. Patcnt Claims; Illustrated Mechanical, Philosophical, and Law Books and Reports, of the very highest authority, forming the only extensive library of patent works west ot the Rocky Mountains. We offer patentees and inventors the free use of these books at our office. The files of the Mrxine anp Scizntiric Press contain the claims of the Pacific Coast Patents, and many illustrated descriptions of the same. We have also in our office full copies of a large majority of the patent cases emanating on the Pacific Coast. Copies of Patents. Full copies of U. 8. Patents will be furnished in the shortest time possible, at favorable rates. Copies of the claims of U. S. Patents will be furnished without delay, from the reports in our office, at trifling expense. State the name of patentee and assignees, and date and No. of the patent, if possible. Copies of Patents in foreign countries expeditiously furnished at moderate rates. Extensions.—-U. 8. Patents issued prior to 1861, are subject to extension for seven yeas, provided some ostcnsible reason can be shown the Government for so doing. Patentees who have, from circumstances beyond their control, been deprived of the full benefit of their patents for any considerable time, are usually successful in obtaining an extension of the same, when presented through our agency. Infiuence at Wassineron.—No inventor can possibly have better facilities or more influence (through friends or agents, at Washington or elsewhere), to secure their patents sooner or more surely, than ourselves. Our influence at Washington is unrivalled, so far as success for applications from the Pacific States and Territories are concerned. Illustrate your Inventions. One of the best means—and the cheapest, too— for eliciting attention to a new invention, is that of illustrating and describing it in the columns of the Mining anv Screntiric Press. To do this in the case of a meritorious improvement (and none other will he accepted), will cost our clients no more than tbe price of a first-class engraving. Superior Engraving Done. We have superior draughtsmen employed in our offico, and take especial pains in furnishing engravings and electrotypes of superior merit, of all kinds, at fair rates, and tender our patrons the benefit of our practice and experience, by advige and assistance, in getting up their circulars, adver tisements, etc. With a poor representation we desire to have nothing to do, as it would be calculated to injure beth the inventor and ourselves. Too many ingenious inventors lose the product of their genius and labor by not bringing their improvements conspicuously or plainly enough befure the public—the general reading public. Dangers of Delay. Situated so remote from the seat of Government, delays are even more dangerous to the inventors of the Pacific coast than to applicants in the Eastern States. Valuable pateuts may be lost by the extra time consumed in transmitting specifications from Eastern agencies back to this coast for the signature of the inventor, or by reason of return for amendment when addressed directly by the inventor to the Government. More valuable patent rights have been sold on the Pacific Coast by reason of the information given of them by illustrations in the Mining aNnp Screntiric Press, than threugh any other source. The cost of such illustratiens is little in cemparisou with the satisfaction gained. DEWEY & CO., Publishers and Patent Agents, No. 414 Clay street below Sansome, San Francisco. Advertising and Subscription Rates for the Mining and Scientific Press. Subseriptions In Advance ;—One year, Months, $3; Single copies 1214 cts; Alone y anuum; QuarRTEKLy Senixs (stiff paper bindi $5; Six Series, $5 per ing) $6 yeaviy. Lowest Rates for Advertising : Wo shall adhere tothe followimg rates (payable In gold eoin) for advertising in the Minina anp Serentirie Press fron this date: One column, one year. $400 00 Halfcolumn, one year 200 00 One columy, six montb. 00 00 Hatt columu, six mouth: 0 UO One eolumn, three months (18 weeks). 00 00 Half column, tlree months. 60 00 Per line (saliest type) one yea: » 800 Per linc (30 lines or more) one year » 240 Per line, three months.. 100 Per llu6 (10 lines or more) thr 80 Per linc, one month (4 weeks) 50 Per line (10 lines or more) one 40 Per lino, one weok ..2.0525 Por line (10 lines or more} one week 20 Particular attention will be given to preparing cugray ings, inserting advertisements 1m conspicuous, novel and at tractive form; wo will otherwise assist advertisers in get \ing up their notices, when desired. egeAll advertisements ju the Press appear In both the gm Montnty any Quanteriy Szrixs of the Mining anp kay Scurntirio Press, wilich (by special arrangement) are Sa>placed tor rere reapine in the principal hotels, steam. ta-boat and steamship saloons, depots, and public reading kay-rooms aud jibraries in San Franeisco, and the Pacifie yarStates. Many volumes rare also bound, thus affording gay perinarent advertising. The Pass now reeeives the largeat aud best advertising pabtonage Of ANY WEEKLY PAPEA wost of the Recky Mount8. In regard to the value of advertising in our journal, we refer with pleasure to those who can spesk from expericuce—our advertisers, Botter referees, or more rellable numes, cannot be found in tle advertising columns of any nowspapor in tho world, DEWEY & co, Publishers und Patent Agents, No. 414 Olay st., Sau Francisco, May 1, 1869, Price $1. Cloth Binding. A NEW EDITION OF OVER 500 ILLUSTRATED MECHANICAL MOVEMENTS. JUST ISSUED BY DEWEY & CO,, Publishers Mining and Scientifle Press SAN FRANCISCO. This work is superior to any other of its kind in the English language, The drawings are of good size, plain and distinct, and the descriptions full and comprebensive to intelligent readers of every elass. THIS IS A OHEAP BOOK, Notwithstanding most Scientific and Mechanical works are eostly. No Inventor or Patentee should ba without it. It is interesting to all classes of Mechanics, Farmers, and others, who have more or less to do with constructing machinery. It is Valuable and Handy for Every Day Use In every Mill, Factory, Foundry, Machine and Workshop, Sent to any part of the United States, for $1, POSTAGE PAID. A liberal discount to the trade and country DEWEY newsdealers, & CO.,, Publishers and Patent Agents, Mining and Scientific Press Office, San Francisco, Contents of Our Illustrated Patent Circular. SENT FREE ON APPLICATION. Adyanclng Cuses ; Advantages, Important; Assignments, Forms, Cost, etc.; Caveats of what they Consist, Form of, Cost, how Filed effectively ; Cost of Obtaining Patents; Confidential Advice; Copies of Patents Assignments, etc., Copyrights; Dangers of Delay; Designs, Patents for; Engravings and Ilnstrations ; Engine, Condensing-Beam—lI1llustrated ; Extension of Patents; Foreign Patents—all Countries; Forign Iuventors; Hints to Inventors; Government Fes, List of; Home Counsel; How to Ohtain Patents—Steps Necessary ; Hydrostatic Press—IlInstrated ; Intorferences; Influence at Washington; Laws (U. 8.) and Decisions Relating to Patents; Latho, Engine—Iilnstrated; Letters Patent—of what they Consist; Library, Reports, Law Books; Loeomotive Engine—Illustrated; Medicines or Compounds, Patent for; Mechanical Movements—Ilustrated ; Mining and Scieutific Press Office; Processes, Patents for; Record of Pacific Coast Patents; Re-issues; Rejections—Cause and Remedy; Reports of Patent Office; Rights and Privileges of Inventors ind Patentees; Saving of Time; Self-eyident Facts; Sellimg Patent Rights; Springs, Various Kinds—illustrated ; Stamp Battery, Quartz—Mlustrated ; Telegraph, Patent Business by; Unsuccessful Applicants; Who can Obtain Letters Patents; What Claims can ho Patented; Worthless Patents, Candid Reasoning. Ko” This pamphlet sent free on receipt of postage. DEWEY & Cu,, U.S, and Foroigu Patont Agents, 414 Clay strcet Tue large majority of United States and Foreign Patents granted to inventors on the Pacific coast during the past few years, have been obtained through the agency of Duwzy & Co., publishere of the Mining anp ScrentiFic Press, Established in 1860, we have an extensive patent library, with full record of cases on this coast, and can give the best and most reliable advice as to the patentability of new inventions. ENGRAVIN ON WooD MINING AND ScrentiFio Press. Fine Outs made for Book and Newspaper Illustrations, and for Faucy Lahels for printing in varions colors; Monogrums; Seals, ete., etc. Prompt execution and reasonablo prices. DEWHY «& Co., No, 414 Clay street, S. F. DESIGNING AND ENGRAVING on wood and for elcctrot:-pe cuts of every description, done by superior artists at the office of the ELEcTaAOTYPA ENGRAVINGS. Cors, Ero.—Our Job Printing Office is abundantly suppiied with elegant engravings, or ts, and other to suit the various branches of industry in this State . corresponding trust. Volunteer Compliments. From an endless serics of appreciative testimonials and frank acknowledgements, we give the. fellowing ; “Tmat Wavis’’ OFFIoE, SILVER City, } Ipano TERRITORY, Jilly 27th, 1869. Messas. Dewny & Co.—GENTLEMEN:—Allow me to express my high appreeiation of the ahility and business management of the Mining and Seientific Press Patent Ageney, and to say that our husiness relations bave been marked with the utmost promptitude upon your part and witb entire satisfaction upon mine. Yours, ete., Jxo. 8. BUTLER. San Francisco, May 5, 1869.—Muessrs, Dewry & Co, Geutlemen:—Allow me to express to you many thanks for services rendered me in procuring my patent, whicb has jnst eome to band. I would also say that your work has been faitbfully done, and your advice and representations have in all cases been honest and truthful. Respectfully, Gee, Inwoon. Suisun Crry, Cal., June 26, 1869. Messrs, Dewey & Co;—This is the tbird time you have presented me witb Letters Patent within twelve months. Oentlemen, you haye done all I bave asked of you—you baye heen honest; you are men that an inventor can rely upon for doing husiness for him, and he need not fear of boing swindled or wronged in auy way. I would give you husiness to do in your various depart. ments in preferenee to any one else. Many thanks to you for your suecess. You bave ohtained valuable patents for me, and I appreciate your kindness, your honesty, ability and suecess. Yours, RicHarnp Knorr. PORTLAND, Oregon, May 2, 1869, Messrs. DEwEx & Co—Gentlemen:—Receive my kind. est thanks for your attentiouin the matter of hringing iny application for a Patent to a suceessful issue. THomas Mann Grass VALLEY, Dec. 2, 1868—JMessrs. Dewey & Co-—~ Having received the patent for Symons & Co’s Tossing and Refining Ooncentrator, through your Ageney, we return our sincere thanks to you for your unrivalled success. Yours, respectfully, Symons & Harry, Lexineton, April 3, 1869, Dear Sms:—The Letters Patent have just come to hond. For tho prompt and business-like manner with which yon have put the matter through, please accopt my thauks. i) Gro. W. TEASDALE, To Dewey & Co., Publishers M. & S. Press. SrocrrTon, April 8th, 1869, Messrs. Drwxy & Oo.:—Your favor of the Gth inst., aceompanying patent for improvement in horse shoes, isreceived. Ibeg you will accept the earnest assurance of my gratitude for yonr kind assistance and valuahle services, Very truly yours, W.R. Watson, SOMERSVILLE, CaL., Augatst 26th, 1869, Messas. Dewry & Co.—Denr Sirs: Allow me to retwn you my thanks for tho very uhle manner in which you have conducted the business entrusted to your care, You will please forward tho document (British Patent) by Bamber's Express to thisplace. Yours, respectfully, Gro. Hawxuunsr. Magysviwre, Cau., August 13th, 1869. Messrs. Dewey & Co.—GENts:—Enclosed find $20 {curreucy) for last fees on patent for gung plow. I am vory unuch surprised, after opinions recoived from Munn & Co. Iam, respectfully, yours, 2A, He Tho origiual of tho above letter (and many others with similar reference to otber agencies) can he seen at this office, in cases for which we have secured patents for inventors who had been denicd patents, or who had paid for being told that they could not ohtain patonts. Inventors on tho Pacific coust wre fast learning to patronize first-class home agents, who hetter understand their cases and will give more tborough attention to every invention entrusted to their keeping, JAMESTOWN, Cal., July Gth, 1869. Messas. Dewey & Co.—GENTLEMEN:—Tho Patont for ow Ore Washer aud Coucentrator was duly received hy express. Wo retur you our thanks for the promptness and snecessful mnunner which hayo attended your efforts in our behalf. Yours, Wa. G. Hesuep, _ THE RicuT Stamp!—One of onr wide-awako California inventors (wbo hasalready received two patents through this office) evinces the true winning spirit in tho following note: San Jose, Cal., Juno 29, 1869. Messas. DewEy & Co:—A ‘few days ago I received your letter apprising me of the rejection of my case, etc. Well, under tho circumstances, I will just say, “ Let ‘er rip!" aud I will remember tho indofatigable Zack. Taylor's advice to his soldiers—* Pick yonr flint aud try it again." Iwill havo to try and get even on somethiug else. Iam satisfied you have done your duty as agents. Yours, We havo had freqnent occasion to havo husiuess rela tions with the patent agency connected with this estah shment, and have had nothing left to desire in regard oit. Fidelity, promptness and courtesy, soon arranged everything for us to our complete satisfaction. Having had frequont delays at Washington whilo in that city, wo have hecu surprised at the promptitude with which some of our friends obtained their patents through tho agoncy of Messrs. Dewey & Co.—S. FF. Spiritual Light. . Nevapa Crry, Nov. 3d, 1868. Messrs, Dewry & Co.—Gentlemen:—Your favor of tho 30th ult., is just received, informing me of the successfull prosecution of my application for a patent on my ‘Hair Cutting Shears." Please accept my siucero thanks for the speedy and successful manner in which you haye conducted the case, and helieve me, as ever, Very truly yours, Lee D. Ornate, Sawn Francisco, Apall 19, 1859. Messrs. DewEx & Co., Patent Agents.—Gentlemen:— Allow me herowith to tender you my siucere thanks for the efficient assistanco you have reudered me in securjug my pateut, and other papers, as well as tho prompthess and energy displayed by you in our business trans. actious. Very respoctfully yours, C. EB. Jaycox. May¥Iewp, Cal., June 26, 1869, Drwey & Co., Patent Solicitors, San Francisco—Gentlemen:—In acknowledging the receipt of my Letters Patent, allow me to express my thauks for the slrillfnl and trustworthy mauner iu which yon have conducted my business hefore the Department at Wasbingtou. I am perfectly satisfied with the high degree of ahility and integrity displuyed in the management of my caso, and I know of no similar agency in which I could place Yoursstruly, J. M. Jounson. ~ DEWEY & CO,, Publishers Mining and Scientific Press, 414 Clay street, San Francisco. TURN OVER. poh

Scientific Press Girewlar, 18¢ DEWEY « Co. American and Foreign tent Agents, No. 414. Clay Street, SAN FRANCISCO. Patents Obtained Promptly. Caveats Filed Expeditiously. Patent Reissues Taken Out. ; Assignments Made and Recorded in Legal Form. Copies of Patents and Assignments Procured. Examinations of Patents made here and at Washington. Examinations made of Assignments Recorded in Washington. Examinations Ordered and Reported by TexeGRAPH, Rejected Cases taken np and Patents Obtained. Interferences Proseented. Opinions Rendered regarding the Validity of Patents and Assignments. Every Legitimate Branch of Patent Agency Business promptly and thoronghly condneted, DEWEY & CO., Mining and Seientifie Press, San Francisco. Circurars FREE. Assignmenis. We mako out assignments in the most substantial legal and improved forms, record the same in the Patent Offico at Washington, and return tho papers to the assignee, at a total cost of $5. Assignments of extra length or of a special character, will be made out and recorded on the most favorable terms. Assignments already made will be examined end opinions rendered regarding their validity, and the assignments recorded, when desired, for a moderate fee. Unsuccessful Applicants. Inventors who have rejected cases, prepared either by themselves, or fer them hy other agents, and desire to ascertain their prospects of suecess by further efforts, are invited to avail themselves of our unsurpassed facilities in securing favorable results. We have been successful in securing Letters Patent in many such cases. Our terms are very moderate. Our long experience as editors and publishers M. & §. P. guarantees our familiarity with most of the subjects of patents on this coast, and insures inventors a more ready understanding of their cases than they can secure from any other qnarter. It is not the duty of any government official in or out of the Patent Office to prepare patent pacrs, or make models. These must be provided y the applicant or his atterncy, according to law, otherwise his claim will not be considered. Our Office. The office of the Mintne anp Scienriric Press is located in the secend story at No. 414 Clay street, north side, just below Sansome. Here we have spacious accommodations, with our patont rooms, editerial room cuunting room, and news paper printing office —all conveniently arranged and connected, anu our facilities for disatching business correctly and c2onomically, beer than ever before. Don’t forget the number —414 Clay street, below Sansome Home Counsel. Weare frequently consulted by persons who have rejected cascs which they scnt months previous through distant agencies—(hastily paying their first and last gevernment fees, expressage, and extraordinary charges of agents)—when we ceuld have sbown in the start precisely similar drawings and descriptions in the Patent Office Reports in our office, thus saving such applicants thcir uselcss oxpenditure of moncy aud their long suspense. We invite the acquaintance of ail parties connected with inventions and patent right business, believing that the mutual conference of legitimato husiness and professional men is mutual gain, Parties in doubt in regard to their rights as assignees of patents, or purchasers of patented articles, can often receivo free advice of importance to them, from a short call at our offico. In Our Library We bave the only complote set of U. S. Patent Office Reports (from 1844) on this coast; a full record of ali patents issued since 1790; Record of British patents from 1801, und full files of scientifie papers containing illustrations and list of U. §S. Patcnt Claims; Illustrated Mechanical, Philosophical, and Law Books and Reports, of the very highest authority, forming the only extensive library of patent works west ot the Rocky Mountains. We offer patentees and inventors the free use of these books at our office. The files of the Mrxine anp Scizntiric Press contain the claims of the Pacific Coast Patents, and many illustrated descriptions of the same. We have also in our office full copies of a large majority of the patent cases emanating on the Pacific Coast. Copies of Patents. Full copies of U. 8. Patents will be furnished in the shortest time possible, at favorable rates. Copies of the claims of U. S. Patents will be furnished without delay, from the reports in our office, at trifling expense. State the name of patentee and assignees, and date and No. of the patent, if possible. Copies of Patents in foreign countries expeditiously furnished at moderate rates. Extensions.—-U. 8. Patents issued prior to 1861, are subject to extension for seven yeas, provided some ostcnsible reason can be shown the Government for so doing. Patentees who have, from circumstances beyond their control, been deprived of the full benefit of their patents for any considerable time, are usually successful in obtaining an extension of the same, when presented through our agency. Infiuence at Wassineron.—No inventor can possibly have better facilities or more influence (through friends or agents, at Washington or elsewhere), to secure their patents sooner or more surely, than ourselves. Our influence at Washington is unrivalled, so far as success for applications from the Pacific States and Territories are concerned. Illustrate your Inventions. One of the best means—and the cheapest, too— for eliciting attention to a new invention, is that of illustrating and describing it in the columns of the Mining anv Screntiric Press. To do this in the case of a meritorious improvement (and none other will he accepted), will cost our clients no more than tbe price of a first-class engraving. Superior Engraving Done. We have superior draughtsmen employed in our offico, and take especial pains in furnishing engravings and electrotypes of superior merit, of all kinds, at fair rates, and tender our patrons the benefit of our practice and experience, by advige and assistance, in getting up their circulars, adver tisements, etc. With a poor representation we desire to have nothing to do, as it would be calculated to injure beth the inventor and ourselves. Too many ingenious inventors lose the product of their genius and labor by not bringing their improvements conspicuously or plainly enough befure the public—the general reading public. Dangers of Delay. Situated so remote from the seat of Government, delays are even more dangerous to the inventors of the Pacific coast than to applicants in the Eastern States. Valuable pateuts may be lost by the extra time consumed in transmitting specifications from Eastern agencies back to this coast for the signature of the inventor, or by reason of return for amendment when addressed directly by the inventor to the Government. More valuable patent rights have been sold on the Pacific Coast by reason of the information given of them by illustrations in the Mining aNnp Screntiric Press, than threugh any other source. The cost of such illustratiens is little in cemparisou with the satisfaction gained. DEWEY & CO., Publishers and Patent Agents, No. 414 Clay street below Sansome, San Francisco. Advertising and Subscription Rates for the Mining and Scientific Press. Subseriptions In Advance ;—One year, Months, $3; Single copies 1214 cts; Alone y anuum; QuarRTEKLy Senixs (stiff paper bindi $5; Six Series, $5 per ing) $6 yeaviy. Lowest Rates for Advertising : Wo shall adhere tothe followimg rates (payable In gold eoin) for advertising in the Minina anp Serentirie Press fron this date: One column, one year. $400 00 Halfcolumn, one year 200 00 One columy, six montb. 00 00 Hatt columu, six mouth: 0 UO One eolumn, three months (18 weeks). 00 00 Half column, tlree months.. 60 00 Per line (saliest type) one yea: » 800 Per linc (30 lines or more) one year » 240 Per line, three months... 100 Per llu6 (10 lines or more) thr 80 Per linc, one month (4 weeks) 50 Per line (10 lines or more) one 40 Per lino, one weok ...2.0525 Por line (10 lines or more} one week 20 Particular attention will be given to preparing cugray ings, inserting advertisements 1m conspicuous, novel and at tractive form; wo will otherwise assist advertisers in get \ing up their notices, when desired. egeAll advertisements ju the Press appear In both the gm Montnty any Quanteriy Szrixs of the Mining anp kay Scurntirio Press, wilich (by special arrangement) are Sa>placed tor rere reapine in the principal hotels, steam. ta-boat and steamship saloons, depots, and public reading kay-rooms aud jibraries in San Franeisco, and the Pacifie yarStates. Many volumes rare also bound, thus affording gay perinarent advertising. The Pass now reeeives the largeat aud best advertising pabtonage Of ANY WEEKLY PAPEA wost of the Recky Mount8. In regard to the value of advertising in our journal, we refer with pleasure to those who can spesk from expericuce—our advertisers, Botter referees, or more rellable numes, cannot be found in tle advertising columns of any nowspapor in tho world, DEWEY & co, Publishers und Patent Agents, No. 414 Olay st., Sau Francisco, May 1, 1869, Price $1. Cloth Binding. A NEW EDITION OF OVER 500 ILLUSTRATED

MECHANICAL MOVEMENTS. JUST ISSUED BY DEWEY & CO,, Publishers Mining and Scientifle Press SAN FRANCISCO. This work is superior to any other of its kind in the English language, The drawings are of good size, plain and distinct, and the descriptions full and comprebensive to intelligent readers of every elass. THIS IS A OHEAP BOOK, Notwithstanding most Scientific and Mechanical works are eostly. No Inventor or Patentee should ba without it. It is interesting to all classes of Mechanics, Farmers, and others, who have more or less to do with constructing machinery. It is Valuable and Handy for Every Day Use In every Mill, Factory, Foundry, Machine and Workshop, Sent to any part of the United States, for $1, POSTAGE PAID. A liberal discount to the trade and country DEWEY newsdealers, & CO.,, Publishers and Patent Agents, Mining and Scientific Press Office, San Francisco, Contents of Our Illustrated Patent Circular. SENT FREE ON APPLICATION. Adyanclng Cuses ; Advantages, Important; Assignments, Forms, Cost, etc.; Caveats of what they Consist, Form of, Cost, how Filed effectively ; Cost of Obtaining Patents; Confidential Advice; Copies of Patents Assignments, etc., Copyrights; Dangers of Delay; Designs, Patents for; Engravings and Ilnstrations ; Engine, Condensing-Beam—lI1llustrated ; Extension of Patents; Foreign Patents—all Countries; Forign Iuventors; Hints to Inventors; Government Fes, List of; Home Counsel; How to Ohtain Patents—Steps Necessary ; Hydrostatic Press—IlInstrated ; Intorferences; Influence at Washington; Laws (U. 8.) and Decisions Relating to Patents; Latho, Engine—Iilnstrated; Letters Patent—of what they Consist; Library, Reports, Law Books; Loeomotive Engine—Illustrated; Medicines or Compounds, Patent for; Mechanical Movements—Ilustrated ; Mining and Scieutific Press Office; Processes, Patents for; Record of Pacific Coast Patents; Re-issues; Rejections—Cause and Remedy; Reports of Patent Office; Rights and Privileges of Inventors ind Patentees; Saving of Time; Self-eyident Facts; Sellimg Patent Rights; Springs, Various Kinds—illustrated ; Stamp Battery, Quartz—Mlustrated ; Telegraph, Patent Business by; Unsuccessful Applicants; Who can Obtain Letters Patents; What Claims can ho Patented; Worthless Patents, Candid Reasoning. Ko” This pamphlet sent free on receipt of postage. DEWEY & Cu,, U.S, and Foroigu Patont Agents, 414 Clay strcet Tue large majority of United States and Foreign Patents granted to inventors on the Pacific coast during the past few years, have been obtained through the agency of Duwzy & Co., publishere of the Mining anp ScrentiFic Press, Established in 1860, we have an extensive patent library, with full record of cases on this coast, and can give the best and most reliable advice as to the patentability of new inventions. ENGRAVIN ON WooD MINING AND ScrentiFio Press. Fine Outs made for Book and Newspaper Illustrations, and for Faucy Lahels for printing in varions colors; Monogrums; Seals, ete., etc. Prompt execution and reasonablo prices. DEWHY «& Co., No, 414 Clay street, S. F. DESIGNING AND ENGRAVING on wood and for elcctrot:-pe cuts of every description, done by superior artists at the office of the ELEcTaAOTYPA ENGRAVINGS. Cors, Ero.—Our Job Printing Office is abundantly suppiied with elegant engravings, or ts, and other to suit the various branches of industry in this State . corresponding trust. Volunteer Compliments. From an endless serics of appreciative testimonials and frank acknowledgements, we give the. fellowing ; “Tmat Wavis’’ OFFIoE, SILVER City, } Ipano TERRITORY, Jilly 27th, 1869. Messas. Dewny & Co.—GENTLEMEN:—Allow me to express my high appreeiation of the ahility and business management of the Mining and Seientific Press Patent Ageney, and to say that our husiness relations bave been marked with the utmost promptitude upon your part and witb entire satisfaction upon mine. Yours, ete., Jxo. 8. BUTLER. San Francisco, May 5, 1869.—Muessrs, Dewry & Co, Geutlemen:—Allow me to express to you many thanks for services rendered me in procuring my patent, whicb has jnst eome to band. I would also say that your work has been faitbfully done, and your advice and representations have in all cases been honest and truthful. Respectfully, Gee, Inwoon. Suisun Crry, Cal., June 26, 1869. Messrs, Dewey & Co;—This is the tbird time you have presented me witb Letters Patent within twelve months. Oentlemen, you haye done all I bave asked of you—you baye heen honest; you are men that an inventor can rely upon for doing husiness for him, and he need not fear of boing swindled or wronged in auy way. I would give you husiness to do in your various depart. ments in preferenee to any one else. Many thanks to you for your suecess. You bave ohtained valuable patents for me, and I appreciate your kindness, your honesty, ability and suecess. Yours, RicHarnp Knorr. PORTLAND, Oregon, May 2, 1869, Messrs. DEwEx & Co—Gentlemen:—Receive my kind. est thanks for your attentiouin the matter of hringing iny application for a Patent to a suceessful issue. THomas Mann Grass VALLEY, Dec. 2, 1868—JMessrs. Dewey & Co-—~ Having received the patent for Symons & Co’s Tossing and Refining Ooncentrator, through your Ageney, we return our sincere thanks to you for your unrivalled success. Yours, respectfully, Symons & Harry, Lexineton, April 3, 1869, Dear Sms:—The Letters Patent have just come to hond. For tho prompt and business-like manner with which yon have put the matter through, please accopt my thauks. i) Gro. W. TEASDALE, To Dewey & Co., Publishers M. & S. Press. SrocrrTon, April 8th, 1869, Messrs. Drwxy & Oo.:—Your favor of the Gth inst., aceompanying patent for improvement in horse shoes, isreceived. Ibeg you will accept the earnest assurance of my gratitude for yonr kind assistance and valuahle services, Very truly yours, W.R. Watson, SOMERSVILLE, CaL., Augatst 26th, 1869, Messas. Dewry & Co.—Denr Sirs: Allow me to retwn you my thanks for tho very uhle manner in which you have conducted the business entrusted to your care, You will please forward tho document (British Patent) by Bamber's Express to thisplace. Yours, respectfully, Gro. Hawxuunsr. Magysviwre, Cau., August 13th, 1869. Messrs. Dewey & Co.—GENts:—Enclosed find $20 {curreucy) for last fees on patent for gung plow. I am vory unuch surprised, after opinions recoived from Munn & Co. Iam, respectfully, yours, 2A, He Tho origiual of tho above letter (and many others with similar reference to otber agencies) can he seen at this office, in cases for which we have secured patents for inventors who had been denicd patents, or who had paid for being told that they could not ohtain patonts. Inventors on tho Pacific coust wre fast learning to patronize first-class home agents, who hetter understand their cases and will give more tborough attention to every invention entrusted to their keeping, JAMESTOWN, Cal., July Gth, 1869. Messas. Dewey & Co.—GENTLEMEN:—Tho Patont for ow Ore Washer aud Coucentrator was duly received hy express. Wo retur you our thanks for the promptness and snecessful mnunner which hayo attended your efforts in our behalf. Yours, Wa. G. Hesuep, _ THE RicuT Stamp!—One of onr wide-awako California inventors (wbo hasalready received two patents through this office) evinces the true winning spirit in tho following note: San Jose, Cal., Juno 29, 1869. Messas. DewEy & Co:—A ‘few days ago I received your letter apprising me of the rejection of my case, etc. Well, under tho circumstances, I will just say, “ Let ‘er rip!" aud I will remember tho indofatigable Zack. Taylor's advice to his soldiers—* Pick yonr flint aud try it again." Iwill havo to try and get even on somethiug else. Iam satisfied you have done your duty as agents. Yours, We havo had freqnent occasion to havo husiuess rela tions with the patent agency connected with this estah shment, and have had nothing left to desire in regard oit. Fidelity, promptness and courtesy, soon arranged everything for us to our complete satisfaction. Having had frequont delays at Washington whilo in that city, wo have hecu surprised at the promptitude with which some of our friends obtained their patents through tho agoncy of Messrs. Dewey & Co.—S. FF. Spiritual Light. . Nevapa Crry, Nov. 3d, 1868. Messrs, Dewry & Co.—Gentlemen:—Your favor of tho 30th ult., is just received, informing me of the successfull prosecution of my application for a patent on my ‘Hair Cutting Shears." Please accept my siucero thanks for the speedy and successful manner in which you haye conducted the case, and helieve me, as ever, Very truly yours, Lee D. Ornate, Sawn Francisco, Apall 19, 1859. Messrs. DewEx & Co., Patent Agents.—Gentlemen:— Allow me herowith to tender you my siucere thanks for the efficient assistanco you have reudered me in securjug my pateut, and other papers, as well as tho prompthess and energy displayed by you in our business trans. actious. Very respoctfully yours, C. EB. Jaycox. May¥Iewp, Cal., June 26, 1869, Drwey & Co., Patent Solicitors, San Francisco—Gentlemen:—In acknowledging the receipt of my Letters Patent, allow me to express my thauks for the slrillfnl and trustworthy mauner iu which yon have conducted my business hefore the Department at Wasbingtou. I am perfectly satisfied with the high degree of ahility and integrity displuyed in the management of my caso, and I know of no similar agency in which I could place Yoursstruly, J. M. Jounson. ~ DEWEY & CO,, Publishers Mining and Scientific Press, 414 Clay street, San Francisco. TURN OVER. poh