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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Page 36
... quantity of materials employed , and produce thereof . 12. The causes of , and means of preventing , the changes in texture and composition which cast iron occasionally undergoes when in continued con- tact with sea water . 13. The ...
... quantity of materials employed , and produce thereof . 12. The causes of , and means of preventing , the changes in texture and composition which cast iron occasionally undergoes when in continued con- tact with sea water . 13. The ...
Page 65
... quantity of carbonic acid , for example , ( if it be not mixed with other gases absorbable by potash ) may be determined by collecting the gas over inercury , and after placing the graduated flask in the capsule of mercury , cutting the ...
... quantity of carbonic acid , for example , ( if it be not mixed with other gases absorbable by potash ) may be determined by collecting the gas over inercury , and after placing the graduated flask in the capsule of mercury , cutting the ...
Page 70
... quantity , 478 francs 50 cents . In short , the invention of M. Gervais bids fair to make a great revolution in the mode of excavation , and we look forward with a degree of impatience for the decision of the committee of the academy ...
... quantity , 478 francs 50 cents . In short , the invention of M. Gervais bids fair to make a great revolution in the mode of excavation , and we look forward with a degree of impatience for the decision of the committee of the academy ...
Page 75
... quantity of fuel . The first condition requires that at the instant condensation takes place , the water which is injected should cool the sides of the cylinder ; otherwise the steam to be condensed would retain a good deal of its ...
... quantity of fuel . The first condition requires that at the instant condensation takes place , the water which is injected should cool the sides of the cylinder ; otherwise the steam to be condensed would retain a good deal of its ...
Page 76
... quantity of vapour is generated at the expense of this hot water ; finally the cold water contains atmospheric air , which is disengaged as it becomes heated . If , after each operation , the water , steam , and air con- tained , be not ...
... quantity of vapour is generated at the expense of this hot water ; finally the cold water contains atmospheric air , which is disengaged as it becomes heated . If , after each operation , the water , steam , and air con- tained , be not ...
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ammonia amount apparatus applied arrangement atmosphere average 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 deposited described Dew point 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 labour length lever lime liquid locomotive machine magnesia manner manufacture matter means metal miles mode motion nitric acid obtained operation oxide Papin passing patent Philadelphia piece pipe piston placed plate portion 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 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 287 - 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 98 - 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 25 - 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 18 - 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 25 - 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 25 - The specifications and claim in every such case shall be subject to revision and restriction in the same manner as original applications are.