Journal of the Franklin InstituteFranklin Institute, 1842 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
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Seite 16
... motion of the wave ; and thus , as it were , by successive pulsations , the waves possess the power of advancing forward immense masses of rock . Now the upward hydrostatic pressure of a column of sea water twenty feet high , would ...
... motion of the wave ; and thus , as it were , by successive pulsations , the waves possess the power of advancing forward immense masses of rock . Now the upward hydrostatic pressure of a column of sea water twenty feet high , would ...
Seite 17
... motion of the water , which exerted at the same time its full pressure from below . " And as additional evidence that the formation of a partial vacuum is sometimes a consequence of the envelopment of sea works by high waves , Mr ...
... motion of the water , which exerted at the same time its full pressure from below . " And as additional evidence that the formation of a partial vacuum is sometimes a consequence of the envelopment of sea works by high waves , Mr ...
Seite 20
... motion by its gravity as one solid mass ; the interior backing or hearting of the semi - cylinder would be composed of rubble stone well set in cement mortar , and grouted full in low courses , divided into sections for the purpose . It ...
... motion by its gravity as one solid mass ; the interior backing or hearting of the semi - cylinder would be composed of rubble stone well set in cement mortar , and grouted full in low courses , divided into sections for the purpose . It ...
Seite 28
... motion ? 5th . What is the comparative annual expense of repairs , between a piled road and one of the ordinary construction of mud sills , cross ties and strings ? Any replies to these queries , either through the medium of the Journal ...
... motion ? 5th . What is the comparative annual expense of repairs , between a piled road and one of the ordinary construction of mud sills , cross ties and strings ? Any replies to these queries , either through the medium of the Journal ...
Seite 57
... motion , that is to say , arrang- ed in two opposite pairs fitted in levers , or other fastenings , by the vi- brating motion of which levers two opposite cutters , one from each pair , is made to approximate and pass each other ...
... motion , that is to say , arrang- ed in two opposite pairs fitted in levers , or other fastenings , by the vi- brating motion of which levers two opposite cutters , one from each pair , is made to approximate and pass each other ...
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ammonia apparatus applied arrangement attached axle boiler bottom bridge carbonic acid cars cast iron cent centre Certificate of Honorable chimney claim Cloudy combination Committee constructed copper cost curved cylinder described desire to secure diameter driving wheels effect employed engines experiments feet fire flue frame Franklin Institute furnace heat Honorable Mention horizontal improvement inches invention joint length letters patent lever locomotive lower machine manner manufacture mastic means metal miles mode motion nitric acid operation oven oxide pass Pennsylvania Philadelphia pieces pipe piston placed plate present pressure produced puddling furnace purpose quantity rail railroad railway reaction wheel revolving road roller screw secure by letters shaft side slide Spark Arrester spring steam stone stove sulphuric acid surface thickness timber tion tons truss tube turbine upper valve velocity vertical vessel water wheels weight wheel white lead whole wrought iron
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Seite 172 - The Committee on Science and the Arts, constituted by the Franklin Institute of the State of Pennsylvania for the promotion of the Mechanic Arts, to whom was referred for examination, two reflecting telescopes, made by Mr.
Seite 130 - Be it known that I, John Fitch, of Philadelphia, in the county of Philadelphia, the State of Pennsylvania, have invented a new and improved mode of preventing steam-boilers from bursting, and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
Seite 132 - The declaration was in the usual form, and the defendants pleaded thereto, first, that they were not guilty; secondly, that the plaintiff was not the...
Seite 174 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Seite 351 - Such oath may be made before any person within the United States authorized by law to administer oaths, or, when the applicant resides in a foreign country, before any minister, charge d'affaires, consul, or commercial agent holding commission under the Government of the United States...
Seite 195 - ... but what I do claim, and desire to secure by letters patent, is the peculiar construction of the heat reflecting oven, as described, in combination with the two semi-circular stoves, with funnel-shaped caps, for saving fuel and cooking expeditiously, as before described.
Seite 119 - What I claim as my invention, and which I desire to secure by letters patent, is the...
Seite 261 - After describing the different parts of the machine, he sums up by saying; having thus fully described the nature and operation of my machine for breaking and screening coal, what I claim as new therein, and desire to secure by letters patent is, the manner in which I have arranged and combined with each other Ihe breaking rollers and the screen; the respective parts being formed and operating substantially as herein set forth and made known.
Seite 350 - ... any new and original design for a manufacture, whether of metal or other material or materials ; or any new and original design for the printing of woollen, silk, cotton, or other fabrics; or any new and original design for a bust, statue, or...
Seite 349 - AN ACT In addition to an Act to promote the progress of the Useful Arts, and to Repeal all Acts and parts of Acts heretofore made for that purpose.