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 56
Page 12
... valve capable of opening from below upwards at pleasure . Let us place a movable piston Pin the middle of the cylinder closing its opening very exactly . The atmosphere will press with all its weight upon the upper surface of this ...
... valve capable of opening from below upwards at pleasure . Let us place a movable piston Pin the middle of the cylinder closing its opening very exactly . The atmosphere will press with all its weight upon the upper surface of this ...
Page 13
... valve S , and afterwards , if it were possible , to annihilate suddenly and entirely in the cylinder that portion of air which occupies the space A , B , C , D. Then the piston would only be subject to the action of the outer air by ...
... valve S , and afterwards , if it were possible , to annihilate suddenly and entirely in the cylinder that portion of air which occupies the space A , B , C , D. Then the piston would only be subject to the action of the outer air by ...
Page 53
... valves , for the purpose , and in the manner made known . I claim , likewise , the open- ings in the bottom of the boat , in combination with sliding valves or shut- ters , and a rod , or handle for operating the same , constructed ...
... valves , for the purpose , and in the manner made known . I claim , likewise , the open- ings in the bottom of the boat , in combination with sliding valves or shut- ters , and a rod , or handle for operating the same , constructed ...
Page 77
... valves . Then the steam which the boiler supplies passes below the piston , which rises , and the steam above it which a moment before produced the descending motion , rushes into the condenser , with which it is in turn in free ...
... valves . Then the steam which the boiler supplies passes below the piston , which rises , and the steam above it which a moment before produced the descending motion , rushes into the condenser , with which it is in turn in free ...
Page 78
... valve is closed when the piston is at two thirds of its stroke , one third less steam will enter and be consumed . Experiments have shown that in thus using a cut - off valve to regulate the quantity of steam admitted to the cylinder ...
... valve is closed when the piston is at two thirds of its stroke , one third less steam will enter and be consumed . Experiments have shown that in thus using a cut - off valve to regulate the quantity of steam admitted to the cylinder ...
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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.