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 5
... quantity of freight , = 20,482 tons ; the income from all sources has been : From the ten river boats , 66 66 seven sea boats , discounts , & c . , $ 175,135 123,953 4,469 Total , $ 303,557 1 * Amount brought forward , The current ...
... quantity of freight , = 20,482 tons ; the income from all sources has been : From the ten river boats , 66 66 seven sea boats , discounts , & c . , $ 175,135 123,953 4,469 Total , $ 303,557 1 * Amount brought forward , The current ...
Seite 33
... quantity of that acid will be absorbed by the oxides upon exposure to the air subsequent to attrition . The comminuted lead when taken from the trays , where the lead was only moistened , has the dark gray color of suboxide , and first ...
... quantity of that acid will be absorbed by the oxides upon exposure to the air subsequent to attrition . The comminuted lead when taken from the trays , where the lead was only moistened , has the dark gray color of suboxide , and first ...
Seite 34
... quantity , if we suppose a large amount of air to pass over the agitated lead , but then the quantity , relatively to the oxygen of the atmosphere is very small . I would suggest whether it would not be desirable to perform an ...
... quantity , if we suppose a large amount of air to pass over the agitated lead , but then the quantity , relatively to the oxygen of the atmosphere is very small . I would suggest whether it would not be desirable to perform an ...
Seite 37
... quantity of litharge obtained in different processes of the arts is greater than the commercial demand for it , and as a reconversion of it into metallic lead is attended with a loss of more than one - sixteenth of its weight , it is ...
... quantity of litharge obtained in different processes of the arts is greater than the commercial demand for it , and as a reconversion of it into metallic lead is attended with a loss of more than one - sixteenth of its weight , it is ...
Seite 39
... quantity from tan , which is employed with success in England . The heat of fermentation then will raise vapour of vinegar , carbonic acid and water ; but there is another material of value present in this process , the atmosphere ...
... quantity from tan , which is employed with success in England . The heat of fermentation then will raise vapour of vinegar , carbonic acid and water ; but there is another material of value present in this process , the atmosphere ...
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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.