Journal of the Franklin Institute of the State of Pennsylvania for the Promotion of the Mechanic Arts: Devoted to Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patent InventionsFranklin Institute, 1840 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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Results 1-5 of 96
Page 58
... colour in a minute . The the dark . There deflection was was no time to considerable . The measure the de- weight was laid flection . on at once . This bar was percepti- bly red by day- Tem light . 934 broke 212 ° 1124 broke 600 ° Broke ...
... colour in a minute . The the dark . There deflection was was no time to considerable . The measure the de- weight was laid flection . on at once . This bar was percepti- bly red by day- Tem light . 934 broke 212 ° 1124 broke 600 ° Broke ...
Page 60
... colour , we have the breaking weights 663 and 723 ; whereas , in the hot blast , at nearly the same temperature , the breaking weight is 829.7 , being as 693 ( the mean ) to 829 , or in the ratio of 1000 : 1289 . From the experiments in ...
... colour , we have the breaking weights 663 and 723 ; whereas , in the hot blast , at nearly the same temperature , the breaking weight is 829.7 , being as 693 ( the mean ) to 829 , or in the ratio of 1000 : 1289 . From the experiments in ...
Page 63
... colour of the solution and the bubbles of nitrous gas evolved from the copper . Let the plate remain in it long enough for the exposed lines to get slightly corroded , so that any minute . portions of wax which might remain may be ...
... colour of the solution and the bubbles of nitrous gas evolved from the copper . Let the plate remain in it long enough for the exposed lines to get slightly corroded , so that any minute . portions of wax which might remain may be ...
Page 127
... colour , as rapidly as the paper can be manufactured . Some idea may be formed of the power of the machinery , and the impor- tance of the invention , when we state that during our visit to the mill , the machinery was working at a rate ...
... colour , as rapidly as the paper can be manufactured . Some idea may be formed of the power of the machinery , and the impor- tance of the invention , when we state that during our visit to the mill , the machinery was working at a rate ...
Page 138
... colour ; and that azote was a constituent of steel as well as of wrought iron . Further , it was explained , that silicon generally was combined with carbon , and dissolved in the carburets of iron , and that it was extremely difficult ...
... colour ; and that azote was a constituent of steel as well as of wrought iron . Further , it was explained , that silicon generally was combined with carbon , and dissolved in the carburets of iron , and that it was extremely difficult ...
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ammonia apparatus applied arrangement atmosphere bars bitumen boiler canal carbonic acid carriage cast iron cent Certificate of Honourable claim Clear-do Cloudy-do coal colour combination Committee consists construction containing copper cost cylinder described diameter distance dollars effect employed equal exhibited experiments Fahrenheit feet Franklin Institute friction frustrum furnace glass heat Honourable Mention improvement inches inclined plane increase invention iron labour length lever lime liquid locomotive machine magnesia manner manufacture matter means metal miles mode motion nitric acid obtained operation oxide Papin passing patent Pennsylvania Philadelphia piece pipe piston placed plate portion potash pressure produced puddling furnace purpose quantity railroads rails railway resistance revolving road rollers screw shaft side silver solution specimens steam engine stone stroke engine sulphate sulphuric sulphuric acid surface temperature tion tube valve vessel wages weight wheels white lead whole wood zinc
Popular passages
Page 115 - 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.
Page 289 - General, who is a member of the Cabinet of the President of the United States: but, like the other cabinet officers, receives only the moderate salary of 6000 dollars.
Page 102 - 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.
Page 29 - Whenever, through inadvertence, accident, or mistake. and without any fraudulent or deceptive intention, a patentee has claimed more than that of which he was the original or first inventor or discoverer...
Page 22 - 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.
Page 83 - A description and draught of a new-invented machine for carrying vessels or ships out of or into any harbour, port, or river, against wind or tide, or in a calm.
Page 305 - Now know ye, that in compliance with the said proviso, I, the said William Graham, do hereby declare the nature of the said invention, and the manner in which the same is to be performed...
Page 11 - I have taken a piece of a whole cannon, whereof the end was burst, and filled it three quarters full of water, stopping and screwing up the broken end, as also the touchhole, and making a constant fire under it ; within twenty-four hours it burst, and made a great crack...
Page 29 - Office; and it shall thereafter be considered as part of the original specification to the extent of the interest possessed by the claimant and by those claiming under him after the record thereof.
Page 29 - The specifications and claim in every such case shall be subject to revision and restriction in the same manner as original applications are.