Entered at the Post Office of New York, N. Y., as Second Class matter. Copyrighted,1892, by Mnnn of: Co. WEEKLY JOURNAL PRACTICAL SCIENCE, MECHANICS, CHEMISTRY, MANUFACTURES. A OF INFORMATION, ART, AND Vol. LXVI.-No. 24.1 YORK, 11, 1892. A YEAR. EST ABLI�HED 1845. _ NEW JUNE [,3.00WEEKLY. ESTABLISHMENT.-[See page 373.J © 1892 SCIENTIFIC AMERICAN, INC. J citutific �tutricau. [JUNE II, 1892. ANOTHER NEW PATENT BILL. Hoster was a skilled mechanic and a careful workman, Among the various bills introduced at the present well aware of the danger of working about benzine with Congressional session for the modificationof the patent a light; and when he called for the lamp, he must have Jtitutifit �mtri'la. laws is H. R. 601, which is understood embody the forgotten, for the moment, that the can was in the ESTABLISHED 1845. to views of the present Commissioner of Patents, the Hon. boiler. HUNN & CO., and Proprietors W. L. Simmonds. Accidents of this character sometimes happen when Editors The bill contains several excellent features which if a light is brought to the open handhole or manhole of PUBLISHED WEEKLY.AT adopted would improve the existing law; it also pre­ of a boiler in which kerosene has been used to remove sents some objectionable clauses that ought never to scale, though we do not know of an accident of this No. 361 BROADWAY, NEW YORK. pass. kind whose results were so terrible.-The Locomotive. The proposed amendment of the section relating to O. D. lIIUNN. A. E. BEACH. caveats, giving the privilege to foreigners as well as Magazine Guns. citizens, is a good one: so, too, is the section which pre­ While tt.e magazine gun board is concluding its testE TERMS FOR THE SCIENTIFIC AMERICAN. e r vents a foreign patent from nullifying an American of submitted weapons at Springfield it is interesting to :.':i J�h�����rht,;·J:'S?,=d� O���cio::::: 8 patent, provided the application for the American pa­ notice, says the .Army and Na vy Register, that Mr. One�: :;::��:cop ,one year,to lloIlyforeign country belonging to Postal::::::::::: Union. f4 gg00 RemitY by postal or express money order, or by b ..nk draft or cheM. WhOSE MUNN CO., Broadw.. y, comer of Frauklln Street, New York. tent wal:! filed prior to the issue of the foreign patent. Very, of the Hotchkiss Ordinance Company, &; 361 One of the most radical changes proposed by this residence in Europe has afforded him ample opportun· 'l'he �cielltific Alnel'ican Supplement Is .. distinct pape from the SCIENTIFIC AMERICAN. THE SUPPLEMENT relates to those cases where two or more different ities of watching the ravages of the magazine gun epi· is issued weekly. Every number contains oCtavo pages,uniform in siz.e bill with SCIENTIFIC AMERICAN. 'I'erms of subscription16 for SUPPLEMENT, parties claim a patent for the same invention. These demic, believes the Springfield single loader is the .. year, for the U. S., Canad .. or Mexico. year to foreign $5.00countries belo� to the Postal Union. Single $6.00copies, .. cents. Sold are called interfering applications. The present law superior of any of the magazine guns. Undoubtedly t 10 b>(!:!�,��r;:�:rt.ra:��\": ��:E��'ii�' A�:�';?�"'i:���'ii ENT provides that proofs of priority of invention shall be half a dozen shots or whatever the magazine holds can n t ad '::."t :.�?� J:,�,r.�o �o�:� =�� �tttJ,f=I°'U�':;"t!."':�i�� presented to the Commissioner of Patents by all the be fired more rapidly from a magazine gun than from ::'Mdoll r8 -a year. contestants, and he awards the patent to the original the Springfield rifle. But Mr. Very judiciously ob­ a HuUdiull' Edition. THE A.RCHITBCTSAND BUILDERSEDITION THE SCIENTIFIC AMERI­ and first inventor, as proved by the testimony placed serves that the critical period, during which a great CkN is .. large IloIld splendid Illustrated periodical.011' iBsued monthly, con­ taining 1I00rplans, perspective views, IloIld sheets of constroctlve details, before him. rapidity of firing.will be important in battle, will last g ar n r r d g:�u�\�� £.'ies':'�;�ng 3=l!.":iw��s, �t� b�m�; �'iI �£t The change proposed in this new law does away with three or four minutes and a soldier can fire more shots P n :gi:l;'lge,.'I!:��)j..;rh�u:�: :��gri"'�r':f�.,trl� this presentation of proofs and authorizes the Commis­ in three or four minutes from a Springfield single turalr::�� publication in the world. sioner to issue a patent to the party who first files his loader than he can from a magazine gun. Mr. Very Single co�les 25 cents. By mall, to lloIlypart of the United States. Canada or Mexico, ,2.50 year. To foreign Postal Union countries, a year. Combined r ..te fora. BUILDING EDITION with SCIENTIFIC AMERICAN,13.00 application, irrespective of the real date of his inven­ also makes the cu1'.ious but important criticism of the a year; combined rate for BUILDING EDITION, SCIENTIFIC AMERICAN$5.00 IloIldSUPPLEMENT, ..year. To foreil(11countries, ,11.50a year. tion. magazine guns, that no soldier in the excitement of e9.00 Spauish Edition of the Scientillc American. The true inventor may be thus driven away from combat will keep count of his shots and that he will go LA AMERICA CIENTIFICA E INDUSTRIAL (Spanish trade edition of the SCIENTIFIC AMERICAN) Is publl.hed monthly, uniform In .Ize IloIldtypo- the Patent Office: but he is allowed tbe forlorn fem­ through the motions of firing at an advancing enemy t T N is edy of seeking redress by a bill in equity. The general after he has exhausted his magazine. Even in practice �¥�leJ;l 81������ r't"��t:e���!t . cf::li�c��if�ri!d'�ertca lnted In the 8l1ani.hlangn e. It circulates• throughout Cuba, the idfla or aim of this section is to relieve the Patent and target firing he believes that most soldiers fire once r:; t '1 al We:e .iO��:f.�;:'�er�� ��..:t!�1�¥.:��e�� �.&".M����t �r� t"o Office from the burdensome litigations of interference more than they have cartridges, and amid the noise lloIlypart of the world. Single cople. cent.. See pro.pectus. MUNN25 & CO., Publl.hers, questions, which now so often and fruitlessly occupy and excitement of battle, especially in the face of a Broadway, New York. h e s 361 x e o time and cause prolonged delays in the settlement of charge from the enemy, he believes that a large por­ dg o� :a�f ��:;���:,� lre�It���. <;'�:�b;:, � ��: ��YJf?:� Patent Office cases. The idea of relief is a good one, tion of the troops would forget all about the magazines &CO. � t pnbll.her. In caseof but the mode of doing it seems_harsh and unjust to and go on automatically with the motions of loading alf:::-"J:;;:��; cer ��� .. afft J :e� inventors. and flring. Most of the officers of companies that were It would seem to be better in such cases· that each of a few years ago supplied experimentally with magazine 11, 1892. NEW YORK, SATURDAY, JUNE the claimants should receive a patent, and then go to guns reported adversely on them. They have with the courts as in other cases to settle which of the them a careful and intelligent observer fresh from the claimants is the rightful patentee and which patent is Continent, where all armies are equipped with maga­ Coutent8. valid. But to authorize the Commissioner to issue a zine guns. The investigation now going on is of excep­ <illustrated articles are marked with IloIla.terlsk.) patent only to one of the claimants, simply because tional thoroughness, and the report of our small arms Aerial n ..v1gatlon, modem ....... 37'1 GUDS, magazine AaroUte, an enormOud . Hofniann,Prof., .• ...death...•... of.. .••••••• 868 he filed his case a second of time ahead of the other board will be of great importance it will probably be e ...I. .., . _.0 . S69 Inventions recently patented. .. .... 3'13 j Air=g� :,g�h�r��!.'� .,:.���� Lighthouse establl.hment, .S...*367 3'l8 claimants, seems unfair and unnecessary. conclusive. Altar, household. Beaudet's 3'10311 Lighthou.e,Execution RoCk,L.L'367U. •.... Another objectionable section (13) of the bill that Aqmtrium, proposed, in New Mantld ... (locust) •................. 3'15 is . .. Mines, remarkable 372 Wire Pillows and Cushions. Y.>rk... .. ..... ...... 3'12 ...•••o ••••••••• which deprives the patentee of remedy in case of in­ Bacteria. importance of . .. 3'15 Mol_s and sirup ..... .... BUl,pat,,-ut. new.................... .. Onyx, Arizona .......... '".. ....... .'. 3'12376 368 i ' fringements. By the terms of the bill, anybody who Recently had brought under my notice, says a �=��":rii3tiroa;i,"iiie:: �:�t�:��'ie�� !�ekiy' I Earth-worms, African work of .. g�376 Photography In colors ............record �373 buys a telephone, for example, of a vendor on the writer in the London lllustrated Ne ws, a new inven­ Edson, M. B.. de.. th of'............ 3T( e b streets, may set it up and freely use it, and the patentee tion, which I think should be made widely known in Electric insulator, Uecker's., . ... 370 ���w� ��:ii�!e�� :''i!:��ew::: Railway, proposed. through �� has no remedy against such infringer. He must pro­ view of the sanitary benefits likely to accrue from its ElectricalW:��� ��R\:"':o��:n:::: supplle•................ 37'1 � ceed against the maker, who, perhaps, lives in Canada use. I refer to the braided wire pillows, mattresses, SexsaJff:�!.f';:'fi-g�iine.:::::::: IloIld music . ...... ..... .... 3'12 =: F,,':!lo�?g!:iieiiitiie:::::::::::::::: ':!Iphonfor domestic use..... and like articles which, understand, are being intro­ Ferryboat Bremen" ............- .. �374 g . .. 371 and cannot be reached. This is in effect a nullification I Fly IloIld hemp ...................