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 21
... cause of this was the limited scale of their establishments , which would not admit of their embarking in an enterprize so much more extensive than any of them had been accustomed to . In furtherance of the object of the Board , the ...
... cause of this was the limited scale of their establishments , which would not admit of their embarking in an enterprize so much more extensive than any of them had been accustomed to . In furtherance of the object of the Board , the ...
Seite 36
... cause of this defect ; for on ex- amining it microscopically , he found it to consist of small crystaline particles , with a certain degree of translucency . White lead pro- duced by the older methods is superior to it in these respects ...
... cause of this defect ; for on ex- amining it microscopically , he found it to consist of small crystaline particles , with a certain degree of translucency . White lead pro- duced by the older methods is superior to it in these respects ...
Seite 44
... cause of this change of colour , as sulphuretted hydrogen affects the carbonate less than the hydrate . That this view is correct is shown from the great tendency to become yellow possessed by the compound containing one atom each of ...
... cause of this change of colour , as sulphuretted hydrogen affects the carbonate less than the hydrate . That this view is correct is shown from the great tendency to become yellow possessed by the compound containing one atom each of ...
Seite 61
... cause the whole of the heated air generated in combustion to pass over the oven , in a flue space between it and the boilers , or other cooking utensils situated above it ; whilst I heat the lower part of the oven by con- structing the ...
... cause the whole of the heated air generated in combustion to pass over the oven , in a flue space between it and the boilers , or other cooking utensils situated above it ; whilst I heat the lower part of the oven by con- structing the ...
Seite 66
... cause . In the operation of casting , the metal sometimes becomes faulty in the interior , and such faults are extended in the act of drawing , and are not shown on the surface . The drawn pipes are usually from ten to sixteen feet only ...
... cause . In the operation of casting , the metal sometimes becomes faulty in the interior , and such faults are extended in the act of drawing , and are not shown on the surface . The drawn pipes are usually from ten to sixteen feet only ...
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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.