Journal of the Franklin InstitutePergamon Press, 1865 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. |
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Common terms and phrases
66 date acid angle apparatus applied axles beam bitumen boiler bolt carbon carbonic acid carriages cast iron cent centre chemical coal combustion constructed curves cylinder diameter distance effect elastic engine equal equation experiments explosion feet fibre fire flanges force formula FRANKLIN INSTITUTE friction Fusible Alloys gelatine girder give gun cotton gunpowder heat hydrant hydraulic inches of mercury invention Journal length lime locomotive London manufacture material matter means mechanical mercury Messrs neutral axis observed obtained operation ordinary paper Patent petroleum Philadelphia phosphorus pipes piston placed plate practice pressure produced Prof proportion quantity rails railway resistance screw screw threads SERIES.-No Sewer Traps side square inch Stadia steam steam engine steel stone strain street substance supply surface temperature thickness threads tion tires tons tube valve vapor velocity vertical vessel vis-viva weight wheels wrought iron
Popular passages
Page 144 - MARKET, (Rear of St. Stephen's Church, Philadelphia.) ESTABLISHED IN 1S36. Instruction given in CHEMISTRY, MINERALOGY, and GEOLOGY, by LECTURES and PRACTICE.with especial reference to ANALYSIS, MANUFACTURES, AND MEDICINE. Analysis made of Ores, Minerals, Guanos, Waters, and articles of commerce and manufacture. Opinions given on chemical questions.
Page 72 - Iron, 6, 8, 10 and 12 inches diameter, with wrought bands, flush inside and out; and Pumps for same. CollS Of Tube For boiling and evaporating by steam or hot water. Tuyere Colls, For Blast Furnaces, and tube cut and fitted to plans and specifications sent.
Page 72 - Plans are particularly adapted to roads having heavy grades and abrupt curves. The temporary track connecting the Eastern and Western divisions of the Virginia Central Railroad, having grades of 295 feet rise per mile, and curves of 300 feet radius, has been successfully worked for two years past by six-wheel D Engines of QUJ make.
Page 390 - As in the case of the solar spectrum, the heat was found to augment from the violet to the red, while in the dark space beyond the red it rose to a maximum. The position of the maximum was about as distant from the extreme red in the one direction, as the green of the spectrum in the opposite one. The augmentation of temperature beyond the red in the spectrum of the electric light is sudden and enormous.
Page 249 - ... its natural solvents, water and carbonic acid, and is thus restored to active service in the organisms of plants and lower animals, through which it passes, to complete the mighty cycle of its movements into the blood and tissues of the human frame. While circulating thus, age after age, through the three kingdoms of nature, phosphorus is never for a moment free. It is throughout retained in combination with oxygen, and with the earthy or alkaline metals, for which, its attraction is intense.
Page 216 - I take this occasion to state to you, that for several years past I have been acquainted with the manner in which you have conducted your business as Patent Solicitor. This has always been highly creditable to yourself, and satisfactory to the Patent Office. You understood your cases well, and presented them in that intelligible form which generally insured success. I make this Certificate...
Page 72 - Their Branch Office in Washington City is on the corner of F and Seventh Sts., directly opposite the Patent Office. Munn & Co. refer by permission to Hon. J. Holt, Hon.
Page 72 - HAMMEH, now so generally introduced into this and other countries, of which they are the assignees and sole Agents for the United States. Up to the (present time there have been made by the Patentees in England, for that country and the Continent of Europe, between two hundred and fifty and three hundred hammers, for Government, Railway...
Page 144 - NAVY DEPARTMENT: Made principally to aid in ascertaining the comparative economic efficiency of Steam used with different measures of expansion ; and the absolute cost of the power obtained therefrom in weights of Fuel and Steam. The causes and quantities of the condensations in the Cylinder; the economic effect of...